[experiment] turn on effects everywhere #119083

fee1-dead · 2023-12-18T16:22:18Z

no crater run yet, pending the latest bug fixes

rustbot · 2023-12-18T16:22:28Z

r? @spastorino

(rustbot has picked a reviewer for you, use r? to override)

fee1-dead · 2023-12-18T16:23:05Z

r? @ghost

rustbot · 2023-12-18T16:23:08Z

Failed to set assignee to ghost: invalid assignee

Note: Only org members with at least the repository "read" role, users with write permissions, or people who have commented on the PR may be assigned.

fee1-dead · 2023-12-18T16:23:41Z

That was a misclick, sorry guys

rust-log-analyzer · 2023-12-23T15:06:31Z

The job x86_64-gnu-llvm-16 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

Built container sha256:9c3c93a371e5aed5c18185b24f130d95d5140dbd72a9b325e7b6b49e521a4faa
Looks like docker image is the same as before, not uploading
https://ci-caches.rust-lang.org/docker/7ebc15c01a233894034d277c8cce4e949f4e7791f66b4727c8fb6e058a0b8171d6152e1441d677cef0653843ceeee469c097b8699b2bb74249e674f6aa1a8813
sha256:9c3c93a371e5aed5c18185b24f130d95d5140dbd72a9b325e7b6b49e521a4faa
Setting extra environment values for docker:  --env ENABLE_GCC_CODEGEN=1 --env GCC_EXEC_PREFIX=/usr/lib/gcc/
[CI_JOB_NAME=x86_64-gnu-llvm-16]
##[group]Clock drift check
  local time: Sat Dec 23 14:52:22 UTC 2023
  network time: Sat, 23 Dec 2023 14:52:22 GMT
  network time: Sat, 23 Dec 2023 14:52:22 GMT
##[endgroup]
sccache: Starting the server...
##[group]Configure the build
configure: processing command line
configure: 
configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--llvm-root=/usr/lib/llvm-16', '--enable-llvm-link-shared', '--set', 'rust.thin-lto-import-instr-limit=10', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--disable-dist-src', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'rust.codegen-backends=llvm,cranelift,gcc', '--set', 'llvm.static-libstdcpp', '--enable-missing-tools', '--enable-new-symbol-mangling']
configure: target.x86_64-unknown-linux-gnu.llvm-config := /usr/lib/llvm-16/bin/llvm-config
configure: llvm.link-shared     := True
configure: rust.thin-lto-import-instr-limit := 10
configure: rust.codegen-units-std := 1
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---

---- [ui] tests/ui/check-static-values-constraints.rs stdout ----
diff of stderr:

29    = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
30    = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
31 
- error[E0015]: cannot call non-const fn `<str as ToString>::to_string` in statics
-    |
-    |
- LL |     field2: SafeEnum::Variant4("str".to_string()),
-    |
-    = note: calls in statics are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
42 error[E0010]: allocations are not allowed in statics
43   --> $DIR/check-static-values-constraints.rs:96:5
44    |


158    = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
159    = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
- error: aborting due to 17 previous errors
+ error: aborting due to 16 previous errors
162 
163 Some errors have detailed explanations: E0010, E0015, E0493, E0507.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/check-static-values-constraints.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/check-static-values-constraints" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/check-static-values-constraints/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0493]: destructor of `SafeStruct` cannot be evaluated at compile-time
   |
   |
LL |       ..SafeStruct {
   |  _______^
LL | |         //~^ ERROR destructor of
LL | |         field1: SafeEnum::Variant3(WithDtor),
LL | |         field2: SafeEnum::Variant1,
   | |_____^ the destructor for this type cannot be evaluated in statics
LL |   };
   |   - value is dropped here


error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:81:33
   |
LL | static STATIC11: Vec<MyOwned> = vec![MyOwned];
   |                                 ^^^^^^^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [MyOwned]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL | static STATIC11: Vec<MyOwned> = vec![MyOwned];
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:96:5
   |
   |
LL |     vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |     ^^^^^^^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [MyOwned]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL |     vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:98:5
   |
   |
LL |     vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |     ^^^^^^^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [MyOwned]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL |     vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:103:6
   |
   |
LL |     &vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |      ^^^^^^^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [MyOwned]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL |     &vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:105:6
   |
   |
LL |     &vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |      ^^^^^^^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [MyOwned]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL |     &vec![MyOwned], //~ ERROR allocations are not allowed in statics
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:111:31
   |
   |
LL | static STATIC19: Vec<isize> = vec![3];
   |                               ^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [isize]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL | static STATIC19: Vec<isize> = vec![3];
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0507]: cannot move out of static item `x`
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:119:9
   |
LL |         x
LL |         x
   |         ^ move occurs because `x` has type `Vec<isize>`, which does not implement the `Copy` trait
help: consider borrowing here
   |
LL |         &x
   |         +
   |         +

error[E0010]: allocations are not allowed in statics
##[error]  --> /checkout/tests/ui/check-static-values-constraints.rs:117:32
   |
LL |         static x: Vec<isize> = vec![3]; //~ ERROR allocations are not allowed in statics
   |                                ^^^^^^^ allocation not allowed in statics
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)


error[E0015]: cannot call non-const fn `slice::<impl [isize]>::into_vec::<std::alloc::Global>` in statics
   |
   |
LL |         static x: Vec<isize> = vec![3]; //~ ERROR allocations are not allowed in statics
   |
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: calls in statics are limited to constant functions, tuple structs and tuple variants
   = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
   = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 16 previous errors

Some errors have detailed explanations: E0010, E0015, E0493, E0507.
For more information about an error, try `rustc --explain E0010`.
For more information about an error, try `rustc --explain E0010`.
------------------------------------------


---- [ui] tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs stdout ----
diff of stderr:

- error[E0741]: `Foo` must implement `ConstParamTy` to be used as the type of a const generic parameter
-   --> $DIR/unify-op-with-fn-call.rs:18:29
+ error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
3    |
3    |
- LL | struct Evaluatable<const N: Foo>;
+ LL | impl const std::ops::Add for Foo {
+    |            ^^^^^^^^^^^^^
6    |
- help: add `#[derive(ConstParamTy)]` to the struct
- help: add `#[derive(ConstParamTy)]` to the struct
-    |
- LL + #[derive(ConstParamTy)]
- LL | struct Foo(u8);
-    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
12 
- error[E0741]: `Foo` must implement `ConstParamTy` to be used as the type of a const generic parameter
-    |
-    |
- LL | fn foo<const N: Foo>(a: Evaluatable<{ N + N }>) {
-    |
- help: add `#[derive(ConstParamTy)]` to the struct
-    |
-    |
- LL + #[derive(ConstParamTy)]
- LL | struct Foo(u8);
+ error: aborting due to 1 previous error
24 
24 
- error[E0741]: `Foo` must implement `ConstParamTy` to be used as the type of a const generic parameter
-    |
-    |
- LL | fn bar<const N: Foo>() {}
-    |
- help: add `#[derive(ConstParamTy)]` to the struct
-    |
-    |
- LL + #[derive(ConstParamTy)]
- LL | struct Foo(u8);
- 
- error: aborting due to 3 previous errors
- 
- For more information about this error, try `rustc --explain E0741`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/generic_const_exprs/unify-op-with-fn-call" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/generic_const_exprs/unify-op-with-fn-call/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
   |
LL | impl const std::ops::Add for Foo {
   |            ^^^^^^^^^^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/const-generics/issue-93647.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const closure in constants
+ error[E0080]: evaluation of constant value failed
2   --> $DIR/issue-93647.rs:2:5
3    |
4 LL |     (||1usize)()
-    |     ^^^^^^^^^^^^
-    |
-    |
-    = note: closures need an RFC before allowed to be called in constants
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |     ^^^^^^^^^^^^ calling non-const function `X::{constant#0}::{closure#0}`
11 error: aborting due to 1 previous error
12 

- For more information about this error, try `rustc --explain E0015`.
---
To only update this specific test, also pass `--test-args const-generics/issue-93647.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/const-generics/issue-93647.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/issue-93647" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/issue-93647/auxiliary"
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/const-generics/issue-93647.rs:2:5
   |
   |
LL |     (||1usize)()
   |     ^^^^^^^^^^^^ calling non-const function `X::{constant#0}::{closure#0}`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
---
-   --> $DIR/issue-90318.rs:14:8
+ error[E0308]: mismatched types
+   --> $DIR/issue-90318.rs:14:10
3    |
4 LL |     If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
-    |        ^^-----------------^^^^^^^^^^^^^^^^^^^^^^^^
-    |          borrowing is not supported in generic constants
-    |          borrowing is not supported in generic constants
+    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
-    = help: consider moving this anonymous constant into a `const` function
-    = note: this operation may be supported in the future
+    = note: expected constant `false`
+               found constant `true`
+               found constant `true`
11 
- error: overly complex generic constant
-   --> $DIR/issue-90318.rs:21:8
+ error[E0308]: mismatched types
+   --> $DIR/issue-90318.rs:21:10
14    |
15 LL |     If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
-    |        ^^-----------------^^^^^^^^^^^^^^^^^^^^^^^^
-    |          borrowing is not supported in generic constants
-    |          borrowing is not supported in generic constants
+    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
-    = help: consider moving this anonymous constant into a `const` function
-    = note: this operation may be supported in the future
+    = note: expected constant `false`
+               found constant `true`
---
To only update this specific test, also pass `--test-args const-generics/issues/issue-90318.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/const-generics/issues/issue-90318.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/issues/issue-90318" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/const-generics/issues/issue-90318/auxiliary"
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/const-generics/issues/issue-90318.rs:14:10
   |
   |
LL |     If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`

error[E0308]: mismatched types
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/const-generics/issues/issue-90318.rs:21:10
   |
LL |     If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`

error: aborting due to 2 previous errors
---
diff of stderr:

- error[E0493]: destructor of `T` cannot be evaluated at compile-time
-   --> $DIR/const-block-const-bound.rs:8:32
+ error[E0277]: can't drop `UnconstDrop`
3    |
3    |
+ LL |         f(UnconstDrop);
+    |         - ^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `UnconstDrop`
+    |         required by a bound introduced by this call
+    |
+    |
+    = note: the trait bound `UnconstDrop: ~const Destruct` is not satisfied
+ note: required by a bound in `f`
+    |
+    |
4 LL | const fn f<T: ~const Destruct>(x: T) {}
-    |                                ^      - value is dropped here
-    |                                the destructor for this type cannot be evaluated in constant functions
+    |               ^^^^^^^^^^^^^^^ required by this bound in `f`
+ help: consider borrowing here
+    |
+    |
+ LL |         f(&UnconstDrop);
+    |           +
+ LL |         f(&mut UnconstDrop);
8 
9 error: aborting due to 1 previous error
10 

---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/const-block-const-bound.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-block-const-bound" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-block-const-bound/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0277]: can't drop `UnconstDrop`
   |
   |
LL |         f(UnconstDrop);
   |         - ^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `UnconstDrop`
   |         required by a bound introduced by this call
   |
   |
   = note: the trait bound `UnconstDrop: ~const Destruct` is not satisfied
note: required by a bound in `f`
   |
   |
LL | const fn f<T: ~const Destruct>(x: T) {}
   |               ^^^^^^^^^^^^^^^ required by this bound in `f`
   |
   |
LL |         f(&UnconstDrop);
   |           +
LL |         f(&mut UnconstDrop);

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
---
- error: pointers cannot be reliably compared during const eval
+ error[E0308]: mismatched types
2   --> $DIR/const_raw_ptr_ops.rs:4:26
3    |
4 LL | const X: bool = unsafe { &1 as *const i32 == &2 as *const i32 };
-    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
-    = note: see issue #53020 <https://github.com/rust-lang/rust/issues/53020> for more information
+    = note: expected constant `false`
+               found constant `true`
8 
8 
- error: pointers cannot be reliably compared during const eval
+ error[E0308]: mismatched types
10   --> $DIR/const_raw_ptr_ops.rs:6:27
11    |
12 LL | const X2: bool = unsafe { 42 as *const i32 == 43 as *const i32 };
-    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
-    = note: see issue #53020 <https://github.com/rust-lang/rust/issues/53020> for more information
+    = note: expected constant `false`
+               found constant `true`
16 
---
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/consts/const-eval/const_raw_ptr_ops.rs:4:26
   |
LL | const X: bool = unsafe { &1 as *const i32 == &2 as *const i32 }; //~ ERROR pointers cannot
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`

error[E0308]: mismatched types
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/consts/const-eval/const_raw_ptr_ops.rs:6:27
   |
LL | const X2: bool = unsafe { 42 as *const i32 == 43 as *const i32 }; //~ ERROR pointers cannot
   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`

error: aborting due to 2 previous errors
---
--- stderr -------------------------------
error[E0658]: `for` is not allowed in a `const fn`
##[error]  --> /checkout/tests/ui/consts/const-fn-error.rs:5:5
   |
LL | /     for i in 0..x {
LL | |         //~^ ERROR cannot convert
LL | |         //~| ERROR `for` is not allowed in a `const fn`
LL | |         //~| ERROR mutable references are not allowed in constant functions
LL | |         //~| ERROR cannot call non-const fn
LL | |         sum += i;
   | |_____^
   |
   = note: see issue #87575 <https://github.com/rust-lang/rust/issues/87575> for more information
   = help: add `#![feature(const_for)]` to the crate attributes to enable
---
4 LL |     const fn f() -> u32 {
5    |     ^^^^^ functions in traits cannot be const
6 
- error: aborting due to 1 previous error
+ error[E0049]: method `f` has 1 const parameter but its trait declaration has 0 const parameters
+    |
+    |
+ LL |     fn f() -> u32;
+    |         - expected 0 const parameters
+ LL |     const fn f() -> u32 {
+    |     ^^^^^ found 1 const parameter
8 
- For more information about this error, try `rustc --explain E0379`.
---
   |
LL |     const fn f() -> u32 {
   |     ^^^^^ functions in traits cannot be const

error[E0049]: method `f` has 1 const parameter but its trait declaration has 0 const parameters
   |
LL |     fn f() -> u32;
   |         - expected 0 const parameters
...
---
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |              ^^^^ calling non-const function `<std::ops::Range<i32> as IntoIterator>::into_iter`
11 
- error[E0015]: cannot call non-const fn `<std::ops::Range<i32> as Iterator>::next` in constants
-    |
- LL |     for _ in 0..5 {}
-    |              ^^^^
-    |
---

---- [ui] tests/ui/consts/const-try.rs stdout ----
diff of stderr:

- error[E0015]: `?` cannot determine the branch of `TryMe` in constant functions
-   --> $DIR/const-try.rs:33:5
+ error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]`
3    |
- LL |     TryMe?;
-    |     ^^^^^^
-    |     ^^^^^^
+ LL | impl const FromResidual<Error> for TryMe {
6    |
- note: impl defined here, but it is not `const`
-   --> $DIR/const-try.rs:21:1
-   --> $DIR/const-try.rs:21:1
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Try` which is not marked with `#[const_trait]`
9    |
10 LL | impl const Try for TryMe {
-    | ^^^^^^^^^^^^^^^^^^^^^^^^
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
- 
- error[E0015]: `?` cannot convert from residual of `TryMe` in constant functions
+    |            ^^^
17    |
- LL |     TryMe?;
-    |     ^^^^^^
-    |     ^^^^^^
-    |
- note: impl defined here, but it is not `const`
-   --> $DIR/const-try.rs:15:1
-    |
- LL | impl const FromResidual<Error> for TryMe {
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
29 error: aborting due to 2 previous errors
30 

- For more information about this error, try `rustc --explain E0015`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/const-try.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-try" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-try/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]`
   |
   |
LL | impl const FromResidual<Error> for TryMe {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Try` which is not marked with `#[const_trait]`
   |
LL | impl const Try for TryMe {
   |            ^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 2 previous errors
------------------------------------------



---- [ui] tests/ui/consts/constifconst-call-in-const-position.rs stdout ----
diff of stderr:

7    = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
8    = note: `#[warn(incomplete_features)]` on by default
9 
- error[E0015]: cannot call non-const fn `<T as Tr>::a` in constants
-   --> $DIR/constifconst-call-in-const-position.rs:17:9
+ error[E0277]: the trait bound `T: ~const Tr` is not satisfied
12    |
12    |
- LL |     [0; T::a()]
-    |         ^^^^^^
+ LL | const fn foo<T: ~const Tr>() -> [u8; T::a()] {
+    |                                      ^ the trait `~const Tr` is not implemented for `T`
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+ help: consider further restricting this bound
+    |
+    |
+ LL | const fn foo<T: ~const Tr + ~const Tr>() -> [u8; T::a()] {
18 
18 
- error[E0015]: cannot call non-const fn `<T as Tr>::a` in constants
-   --> $DIR/constifconst-call-in-const-position.rs:16:38
+ error[E0277]: the trait bound `T: ~const Tr` is not satisfied
21    |
21    |
- LL | const fn foo<T: ~const Tr>() -> [u8; T::a()] {
-    |                                      ^^^^^^
+ LL |     [0; T::a()]
+    |         ^ the trait `~const Tr` is not implemented for `T`
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+ help: consider further restricting this bound
+    |
+    |
+ LL | const fn foo<T: ~const Tr + ~const Tr>() -> [u8; T::a()] {
27 
28 error: aborting due to 2 previous errors; 1 warning emitted
29 

---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/constifconst-call-in-const-position.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/constifconst-call-in-const-position" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/constifconst-call-in-const-position/auxiliary"
stdout: none
--- stderr -------------------------------
warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
   |
LL | #![feature(const_trait_impl, generic_const_exprs)]
   |                              ^^^^^^^^^^^^^^^^^^^
   |
   |
   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
   = note: `#[warn(incomplete_features)]` on by default

error[E0277]: the trait bound `T: ~const Tr` is not satisfied
   |
   |
LL | const fn foo<T: ~const Tr>() -> [u8; T::a()] {
   |                                      ^ the trait `~const Tr` is not implemented for `T`
help: consider further restricting this bound
   |
   |
LL | const fn foo<T: ~const Tr + ~const Tr>() -> [u8; T::a()] {


error[E0277]: the trait bound `T: ~const Tr` is not satisfied
   |
   |
LL |     [0; T::a()]
   |         ^ the trait `~const Tr` is not implemented for `T`
help: consider further restricting this bound
   |
   |
LL | const fn foo<T: ~const Tr + ~const Tr>() -> [u8; T::a()] {

error: aborting due to 2 previous errors; 1 warning emitted

For more information about this error, try `rustc --explain E0277`.
For more information about this error, try `rustc --explain E0277`.
------------------------------------------


---- [ui] tests/ui/consts/invalid-inline-const-in-match-arm.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const closure in constants
+ error[E0080]: evaluation of `main::{constant#0}` failed
3    |
3    |
4 LL |         const { (|| {})() } => {}
-    |                 ^^^^^^^^^
-    |
-    |
-    = note: closures need an RFC before allowed to be called in constants
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |                 ^^^^^^^^^ calling non-const function `main::{constant#0}::{closure#0}`
11 error: aborting due to 1 previous error
12 

- For more information about this error, try `rustc --explain E0015`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/invalid-inline-const-in-match-arm.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/invalid-inline-const-in-match-arm" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/invalid-inline-const-in-match-arm/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0080]: evaluation of `main::{constant#0}` failed
   |
   |
LL |         const { (|| {})() } => {}
   |                 ^^^^^^^^^ calling non-const function `main::{constant#0}::{closure#0}`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
---
- error[E0015]: cannot call non-const closure in constants
+ error[E0080]: evaluation of constant value failed
2   --> $DIR/issue-28113.rs:4:5
3    |
4 LL |     || -> u8 { 5 }()
-    |     ^^^^^^^^^^^^^^^^
-    |
-    |
-    = note: closures need an RFC before allowed to be called in constants
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |     ^^^^^^^^^^^^^^^^ calling non-const function `X::{closure#0}`
11 error: aborting due to 1 previous error
12 

- For more information about this error, try `rustc --explain E0015`.
---
To only update this specific test, also pass `--test-args consts/issue-28113.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/issue-28113.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-28113" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-28113/auxiliary"
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/consts/issue-28113.rs:4:5
   |
   |
LL |     || -> u8 { 5 }()
   |     ^^^^^^^^^^^^^^^^ calling non-const function `X::{closure#0}`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
---

- error[E0015]: cannot call non-const closure in constant functions
-   --> $DIR/issue-56164.rs:1:18
-    |
- LL | const fn foo() { (||{})() }
-    |
-    |
-    = note: closures need an RFC before allowed to be called in constant functions
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
11 error: function pointer calls are not allowed in constant functions
12   --> $DIR/issue-56164.rs:5:5
13    |

---
To only update this specific test, also pass `--test-args consts/issue-56164.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/issue-56164.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-56164" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-56164/auxiliary"
--- stderr -------------------------------
error: function pointer calls are not allowed in constant functions
##[error]  --> /checkout/tests/ui/consts/issue-56164.rs:5:5
   |
---
- error[E0015]: cannot call non-const closure in constants
+ error[E0080]: evaluation of constant value failed
2   --> $DIR/issue-68542-closure-in-array-len.rs:6:13
3    |
4 LL |     a: [(); (|| { 0 })()]
-    |             ^^^^^^^^^^^^
-    |
-    |
-    = note: closures need an RFC before allowed to be called in constants
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |             ^^^^^^^^^^^^ calling non-const function `Bug::a::{constant#0}::{closure#0}`
11 error: aborting due to 1 previous error
12 

- For more information about this error, try `rustc --explain E0015`.
---
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/consts/issue-68542-closure-in-array-len.rs:6:13
   |
LL |     a: [(); (|| { 0 })()] //~ ERROR cannot call non-const closure
   |             ^^^^^^^^^^^^ calling non-const function `Bug::a::{constant#0}::{closure#0}`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
---
- error[E0015]: cannot call non-const operator in constant functions
+ error[E0308]: mismatched types
2   --> $DIR/issue-73976-monomorphic.rs:21:5
3    |
4 LL |     GetTypeId::<T>::VALUE == GetTypeId::<usize>::VALUE
-    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `host`, found `true`
6    |
- note: impl defined here, but it is not `const`
---
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/consts/issue-73976-monomorphic.rs:21:5
   |
LL |     GetTypeId::<T>::VALUE == GetTypeId::<usize>::VALUE
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `host`, found `true`
   = note: expected constant `host`
              found constant `true`

error: aborting due to 1 previous error
---
diff of stderr:

- error[E0015]: cannot call non-const operator in constant functions
-   --> $DIR/issue-90870.rs:8:5
+ error[E0277]: can't compare `&u8` with `&u8`
3    |
4 LL |     a == b
-    |     ^^^^^^
-    |     ^^^^^^
+    |       ^^ no implementation for `&u8 == &u8`
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
- help: consider dereferencing here
-    |
-    |
- LL |     *a == *b
-    |     +     +
+    = help: the trait `~const PartialEq<&u8>` is not implemented for `&u8`
+    = help: the trait `PartialEq` is implemented for `u8`
- error[E0015]: cannot call non-const operator in constant functions
-   --> $DIR/issue-90870.rs:15:5
-   --> $DIR/issue-90870.rs:15:5
+ error[E0277]: can't compare `&&&&i64` with `&&&&i64`
16    |
17 LL |     a == b
-    |     ^^^^^^
-    |     ^^^^^^
+    |       ^^ no implementation for `&&&&i64 == &&&&i64`
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
- help: consider dereferencing here
-    |
-    |
- LL |     ****a == ****b
-    |     ++++     ++++
+    = help: the trait `~const PartialEq<&&&&i64>` is not implemented for `&&&&i64`
+    = help: the trait `PartialEq` is implemented for `i64`
- error[E0015]: cannot call non-const operator in constant functions
-   --> $DIR/issue-90870.rs:23:12
-   --> $DIR/issue-90870.rs:23:12
+ error[E0277]: can't compare `&u8` with `&u8`
29    |
29    |
30 LL |         if l == r {
-    |            ^^^^^^
+    |              ^^ no implementation for `&u8 == &u8`
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
- help: consider dereferencing here
-    |
-    |
- LL |         if *l == *r {
-    |            +     +
+    = help: the trait `~const PartialEq<&u8>` is not implemented for `&u8`
+    = help: the trait `PartialEq` is implemented for `u8`
40 error: aborting due to 3 previous errors
41 

- For more information about this error, try `rustc --explain E0015`.
---
diff of fixed:

5 #![allow(dead_code)]
6 
7 const fn f(a: &u8, b: &u8) -> bool {
-     *a == *b
+     a == b
9     //~^ ERROR: cannot call non-const operator in constant functions [E0015]
10     //~| HELP: consider dereferencing here
11     //~| HELP: add `#![feature(const_trait_impl)]`
12 }
13 
13 
14 const fn g(a: &&&&i64, b: &&&&i64) -> bool {
-     ****a == ****b
+     a == b
16     //~^ ERROR: cannot call non-const operator in constant functions [E0015]
17     //~| HELP: consider dereferencing here
18     //~| HELP: add `#![feature(const_trait_impl)]`
20 
20 
21 const fn h(mut a: &[u8], mut b: &[u8]) -> bool {
22     while let ([l, at @ ..], [r, bt @ ..]) = (a, b) {
-         if *l == *r {
+         if l == r {
24         //~^ ERROR: cannot call non-const operator in constant functions [E0015]
25         //~| HELP: consider dereferencing here
26         //~| HELP: add `#![feature(const_trait_impl)]`

The actual fixed differed from the expected fixed.
The actual fixed differed from the expected fixed.
Actual fixed saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-90870/issue-90870.fixed
To only update this specific test, also pass `--test-args consts/issue-90870.rs`

error: 2 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/issue-90870.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-90870" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-90870/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error[E0277]: can't compare `&u8` with `&u8`
   |
LL |     a == b
LL |     a == b
   |       ^^ no implementation for `&u8 == &u8`
   |
   = help: the trait `~const PartialEq<&u8>` is not implemented for `&u8`
   = help: the trait `PartialEq` is implemented for `u8`

error[E0277]: can't compare `&&&&i64` with `&&&&i64`
   |
LL |     a == b
LL |     a == b
   |       ^^ no implementation for `&&&&i64 == &&&&i64`
   |
   = help: the trait `~const PartialEq<&&&&i64>` is not implemented for `&&&&i64`
   = help: the trait `PartialEq` is implemented for `i64`

error[E0277]: can't compare `&u8` with `&u8`
   |
   |
LL |         if l == r {
   |              ^^ no implementation for `&u8 == &u8`
   |
   = help: the trait `~const PartialEq<&u8>` is not implemented for `&u8`
   = help: the trait `PartialEq` is implemented for `u8`
error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0277`.
------------------------------------------
---
8 
- error[E0015]: cannot call non-const operator in constant functions
-   --> $DIR/issue-94675.rs:11:17
-    |
- LL |         self.bar[0] = baz.len();
-    |
- note: impl defined here, but it is not `const`
-   --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
---
To only update this specific test, also pass `--test-args consts/issue-94675.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/issue-94675.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-94675" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/issue-94675/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error[E0015]: cannot call non-const fn `Vec::<u32>::len` in constant functions
   |
   |
LL |         self.bar[0] = baz.len();
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 1 previous error
---
- error: pointers cannot be reliably compared during const eval
+ error[E0308]: mismatched types
2   --> $DIR/cmp_fn_pointers.rs:2:14
3    |
4 LL |     unsafe { x == y }
-    |              ^^^^^^
+    |              ^^^^^^ expected `host`, found `true`
6    |
-    = note: see issue #53020 <https://github.com/rust-lang/rust/issues/53020> for more information
---
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/consts/min_const_fn/cmp_fn_pointers.rs:2:14
   |
LL |     unsafe { x == y }
   |              ^^^^^^ expected `host`, found `true`
   = note: expected constant `host`
              found constant `true`

error: aborting due to 1 previous error
---
-    |
- help: skipping check that does not even have a feature gate
-   --> $DIR/drop.rs:16:9
-    |
- LL |     let _v: Vec<i32> = Vec::new();
- 
- error: aborting due to 1 previous error; 1 warning emitted
+ error: aborting due to 1 previous error
23 
---
To only update this specific test, also pass `--test-args consts/miri_unleashed/drop.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/miri_unleashed/drop.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/miri_unleashed/drop" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/miri_unleashed/drop/auxiliary" "-Zunleash-the-miri-inside-of-you"
--- stderr -------------------------------
error[E0080]: could not evaluate static initializer
##[error]  --> /rustc/FAKE_PREFIX/library/core/src/ptr/mod.rs:507:1
   |
   |
   = note: calling non-const function `<Vec<i32> as Drop>::drop`
   |
note: inside `std::ptr::drop_in_place::<Vec<i32>> - shim(Some(Vec<i32>))`
  --> /rustc/FAKE_PREFIX/library/core/src/ptr/mod.rs:507:1
note: inside `TEST_BAD`
   |
LL | };
   | ^

---
---- [ui] tests/ui/consts/miri_unleashed/assoc_const.rs stdout ----
diff of stderr:

27    |
28    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
- warning: skipping const checks
-    |
- help: skipping check that does not even have a feature gate
-   --> $DIR/assoc_const.rs:12:20
-   --> $DIR/assoc_const.rs:12:20
-    |
- LL |     const F: u32 = (U::X, 42).1;
- 
- error: aborting due to 1 previous error; 1 warning emitted
+ error: aborting due to 1 previous error
39 
---
To only update this specific test, also pass `--test-args consts/miri_unleashed/assoc_const.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/miri_unleashed/assoc_const.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/miri_unleashed/assoc_const" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/miri_unleashed/assoc_const/auxiliary" "-Zunleash-the-miri-inside-of-you"
--- stderr -------------------------------
--- stderr -------------------------------
error[E0080]: evaluation of `<String as Bar<Vec<u32>, String>>::F` failed
##[error]  --> /rustc/FAKE_PREFIX/library/core/src/ptr/mod.rs:507:1
   |
   = note: calling non-const function `<Vec<u32> as Drop>::drop`
   |
note: inside `std::ptr::drop_in_place::<Vec<u32>> - shim(Some(Vec<u32>))`
  --> /rustc/FAKE_PREFIX/library/core/src/ptr/mod.rs:507:1
note: inside `std::ptr::drop_in_place::<(Vec<u32>, u32)> - shim(Some((Vec<u32>, u32)))`
  --> /rustc/FAKE_PREFIX/library/core/src/ptr/mod.rs:507:1
note: inside `<String as Bar<Vec<u32>, String>>::F`
   |
   |
LL |     const F: u32 = (U::X, 42).1;

note: erroneous constant encountered
  --> /checkout/tests/ui/consts/miri_unleashed/assoc_const.rs:29:13
   |
   |
LL |     let y = <String as Bar<Vec<u32>, String>>::F; //~ constant

note: erroneous constant encountered
  --> /checkout/tests/ui/consts/miri_unleashed/assoc_const.rs:29:13
   |
   |
LL |     let y = <String as Bar<Vec<u32>, String>>::F; //~ constant
   |
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/consts/promoted-const-drop.rs stdout ----
diff of stderr:

- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted-const-drop.rs:13:26
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
3    |
3    |
- LL |     let _: &'static A = &A();
-    |            ----------    ^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
- LL |     let _: &'static [A] = &[C];
-    | - temporary value is freed at the end of this statement
- 
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted-const-drop.rs:14:28
-   --> $DIR/promoted-const-drop.rs:14:28
+ LL | impl const Drop for A {
+    |            ^^^^
14    |
- LL |     let _: &'static [A] = &[C];
-    |            ------------    ^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
-    | - temporary value is freed at the end of this statement
-    | - temporary value is freed at the end of this statement
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
- error: aborting due to 2 previous errors
+ error: aborting due to 1 previous error
23 
- For more information about this error, try `rustc --explain E0716`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/promoted-const-drop.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/promoted-const-drop" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/promoted-const-drop/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
LL | impl const Drop for A {
   |            ^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/consts/promoted_const_call.rs stdout ----
diff of stderr:

- error[E0493]: destructor of `Panic` cannot be evaluated at compile-time
-   --> $DIR/promoted_const_call.rs:11:30
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
3    |
3    |
- LL |     let _: &'static _ = &id(&Panic);
-    |                              ^^^^^ - value is dropped here
-    |                              the destructor for this type cannot be evaluated in constants
- 
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:11:26
-   --> $DIR/promoted_const_call.rs:11:26
+ LL | impl const Drop for Panic { fn drop(&mut self) { panic!(); } }
11    |
11    |
- LL |     let _: &'static _ = &id(&Panic);
-    |            ----------    ^^^^^^^^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
- LL | };
-    | - temporary value is freed at the end of this statement
-    | - temporary value is freed at the end of this statement
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:11:30
-    |
-    |
- LL |     let _: &'static _ = &id(&Panic);
-    |            ----------        ^^^^^ - temporary value is freed at the end of this statement
-    |            |                 creates a temporary value which is freed while still in use
-    |            |                 creates a temporary value which is freed while still in use
-    |            type annotation requires that borrow lasts for `'static`
28 
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:17:26
-    |
-    |
- LL |     let _: &'static _ = &id(&Panic);
-    |            ----------    ^^^^^^^^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
- LL | }
-    | - temporary value is freed at the end of this statement
- 
- error[E0716]: temporary value dropped while borrowed
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:17:30
-    |
- LL |     let _: &'static _ = &id(&Panic);
-    |            ----------        ^^^^^ - temporary value is freed at the end of this statement
-    |            |                 creates a temporary value which is freed while still in use
-    |            |                 creates a temporary value which is freed while still in use
-    |            type annotation requires that borrow lasts for `'static`
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:20:26
-    |
-    |
- LL |     let _: &'static _ = &&(Panic, 0).1;
-    |            ----------    ^^^^^^^^^^^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
- LL | }
-    | - temporary value is freed at the end of this statement
- 
- error[E0716]: temporary value dropped while borrowed
- error[E0716]: temporary value dropped while borrowed
-   --> $DIR/promoted_const_call.rs:20:27
-    |
- LL |     let _: &'static _ = &&(Panic, 0).1;
-    |            ----------     ^^^^^^^^^^ creates a temporary value which is freed while still in use
-    |            |
-    |            type annotation requires that borrow lasts for `'static`
- LL | }
-    | - temporary value is freed at the end of this statement
- 
- error: aborting due to 7 previous errors
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/consts/promoted_const_call.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/promoted_const_call" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/promoted_const_call/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl const Drop for Panic { fn drop(&mut self) { panic!(); } }
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/generic-const-items/const-trait-impl.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<T as Create>::create` in constants
2   --> $DIR/const-trait-impl.rs:11:30
3    |
3    |
4 LL | const CREATE<T: Create>: T = T::create();
-    |                              ^^^^^^^^^^^
-    |                              ^^^^^^^^^^^
+    |                              ^^^^^^^^^^^ expected `false`, found `true`
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    = note: expected constant `false`
+               found constant `true`
---
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/generic-const-items/const-trait-impl.rs:11:30
   |
LL | const CREATE<T: Create>: T = T::create();
   |                              ^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`

error: aborting due to 1 previous error
---
- error[E0015]: cannot perform deref coercion on `A` in statics
+ error[E0080]: could not evaluate static initializer
2   --> $DIR/issue-25901.rs:4:24
3    |
4 LL | static S: &'static B = &A;
-    |                        ^^
-    |
-    = note: attempting to deref into `B`
- note: deref defined here
---
-   --> $DIR/issue-25901.rs:9:1
-    |
- LL | impl Deref for A {
-    | ^^^^^^^^^^^^^^^^
-    = note: calls in statics are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
+    |                        ^^ calling non-const function `<A as Deref>::deref`
22 error: aborting due to 1 previous error
23 

- For more information about this error, try `rustc --explain E0015`.
---
To only update this specific test, also pass `--test-args issues/issue-25901.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/issues/issue-25901.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-25901" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/issues/issue-25901/auxiliary"
--- stderr -------------------------------
error[E0080]: could not evaluate static initializer
##[error]  --> /checkout/tests/ui/issues/issue-25901.rs:4:24
   |
   |
LL | static S: &'static B = &A;
   |                        ^^ calling non-const function `<A as Deref>::deref`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/mismatched_types/const-fn-in-trait.rs stdout ----
diff of stderr:

10 LL |     const fn f() -> u32 { 22 }
12 
- error: aborting due to 2 previous errors
- error: aborting due to 2 previous errors
+ error[E0049]: method `f` has 1 const parameter but its trait declaration has 0 const parameters
+    |
+    |
+ LL |     fn f() -> u32;
+    |         - expected 0 const parameters
+ ...
+ LL |     const fn f() -> u32 { 22 }
+    |     ^^^^^ found 1 const parameter
- For more information about this error, try `rustc --explain E0379`.
- For more information about this error, try `rustc --explain E0379`.
+ error[E0049]: method `g` has 0 const parameters but its trait declaration has 1 const parameter
+    |
+ LL |     const fn g();
+    |     ----- expected 1 const parameter
+ ...
+ ...
+ LL |     fn g() {}
+    |         ^ found 0 const parameters
+ error: aborting due to 4 previous errors
+ 
+ Some errors have detailed explanations: E0049, E0379.
+ For more information about an error, try `rustc --explain E0049`.
---
--- stderr -------------------------------
error[E0379]: functions in traits cannot be declared const
##[error]  --> /checkout/tests/ui/mismatched_types/const-fn-in-trait.rs:3:5
   |
LL |     const fn g(); //~ ERROR cannot be declared const

error[E0379]: functions in traits cannot be declared const
##[error]  --> /checkout/tests/ui/mismatched_types/const-fn-in-trait.rs:7:5
   |
   |
LL |     const fn f() -> u32 { 22 } //~ ERROR cannot be declared const


error[E0049]: method `f` has 1 const parameter but its trait declaration has 0 const parameters
   |
LL |     fn f() -> u32;
   |         - expected 0 const parameters
...
...
LL |     const fn f() -> u32 { 22 } //~ ERROR cannot be declared const
   |     ^^^^^ found 1 const parameter

error[E0049]: method `g` has 0 const parameters but its trait declaration has 1 const parameter
   |
   |
LL |     const fn g(); //~ ERROR cannot be declared const
   |     ----- expected 1 const parameter
LL |     fn g() {}
LL |     fn g() {}
   |         ^ found 0 const parameters
error: aborting due to 4 previous errors

Some errors have detailed explanations: E0049, E0379.
For more information about an error, try `rustc --explain E0049`.
For more information about an error, try `rustc --explain E0049`.
------------------------------------------


---- [ui] tests/ui/never_type/issue-52443.rs stdout ----
diff of stderr:

40 LL |     [(); loop { break 42 }];
42 
42 
- error[E0015]: cannot convert `RangeFrom<usize>` into an iterator in constants
-    |
-    |
- LL |     [(); { for _ in 0usize.. {}; 0}];
-    |
- note: impl defined here, but it is not `const`
-   --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
---

60    = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
61    = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
62 
- error[E0015]: cannot call non-const fn `<RangeFrom<usize> as Iterator>::next` in constants
-    |
-    |
- LL |     [(); { for _ in 0usize.. {}; 0}];
-    |
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+ error: aborting due to 4 previous errors; 1 warning emitted
---
To only update this specific test, also pass `--test-args never_type/issue-52443.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/never_type/issue-52443.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/never_type/issue-52443" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/never_type/issue-52443/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
warning: denote infinite loops with `loop { ... }`
   |
   |
LL |     [(); {while true {break}; 0}];
   |           ^^^^^^^^^^ help: use `loop`
   = note: `#[warn(while_true)]` on by default

error[E0658]: `for` is not allowed in a `const`
##[error]  --> /checkout/tests/ui/never_type/issue-52443.rs:9:12
##[error]  --> /checkout/tests/ui/never_type/issue-52443.rs:9:12
   |
LL |     [(); { for _ in 0usize.. {}; 0}];
   |
   = note: see issue #87575 <https://github.com/rust-lang/rust/issues/87575> for more information
   = help: add `#![feature(const_for)]` to the crate attributes to enable


error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/never_type/issue-52443.rs:2:10
   |
LL |     [(); & { loop { continue } } ]; //~ ERROR mismatched types
   |          ^^^^^^^^^^^^^^^^^^^^^^^ expected `usize`, found `&_`
   = note:   expected type `usize`
           found reference `&_`
help: consider removing the borrow
   |
   |
LL -     [(); & { loop { continue } } ]; //~ ERROR mismatched types
LL +     [(); { loop { continue } } ]; //~ ERROR mismatched types

error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/never_type/issue-52443.rs:4:17
   |
   |
LL |     [(); loop { break }]; //~ ERROR mismatched types
   |
help: give it a value of the expected type
   |
   |
LL |     [(); loop { break 42 }]; //~ ERROR mismatched types

error[E0658]: mutable references are not allowed in constants
##[error]  --> /checkout/tests/ui/never_type/issue-52443.rs:9:21
   |
   |
LL |     [(); { for _ in 0usize.. {}; 0}];
   |
   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable

---

---- [ui] tests/ui/resolve/issue-39559-2.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<Dim3 as Dim>::dim` in constants
2   --> $DIR/issue-39559-2.rs:14:24
3    |
3    |
4 LL |     let array: [usize; Dim3::dim()]
-    |                        ^^^^^^^^^^^
-    |
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |                        ^^^^^^^^^^^ calling non-const function `<Dim3 as Dim>::dim`
9 
- error[E0015]: cannot call non-const fn `<Dim3 as Dim>::dim` in constants
11   --> $DIR/issue-39559-2.rs:16:15
12    |
12    |
13 LL |         = [0; Dim3::dim()];
-    |               ^^^^^^^^^^^
-    |
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    |               ^^^^^^^^^^^ calling non-const function `<Dim3 as Dim>::dim`
19 error: aborting due to 2 previous errors
20 

- For more information about this error, try `rustc --explain E0015`.
---
To only update this specific test, also pass `--test-args resolve/issue-39559-2.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/resolve/issue-39559-2.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/resolve/issue-39559-2" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/resolve/issue-39559-2/auxiliary"
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/resolve/issue-39559-2.rs:14:24
   |
   |
LL |     let array: [usize; Dim3::dim()]
   |                        ^^^^^^^^^^^ calling non-const function `<Dim3 as Dim>::dim`
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/resolve/issue-39559-2.rs:16:15
   |
   |
LL |         = [0; Dim3::dim()];
   |               ^^^^^^^^^^^ calling non-const function `<Dim3 as Dim>::dim`
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<i32 as Plus>::plus` in constant functions
-   --> $DIR/call-const-trait-method-pass.rs:36:7
+ error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
3    |
3    |
- LL |     a.plus(b)
+ LL | impl const std::ops::Add for Int {
+    |            ^^^^^^^^^^^^^
6    |
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
- error[E0015]: cannot call non-const operator in constants
-   --> $DIR/call-const-trait-method-pass.rs:39:22
-    |
-    |
- LL | const ADD_INT: Int = Int(1i32) + Int(2i32);
-    |
- note: impl defined here, but it is not `const`
-   --> $DIR/call-const-trait-method-pass.rs:7:1
-    |
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-pass/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
   |
LL | impl const std::ops::Add for Int {
   |            ^^^^^^^^^^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const-and-non-const-impl.rs stdout ----
diff of stderr:

- error[E0117]: only traits defined in the current crate can be implemented for primitive types
-   --> $DIR/const-and-non-const-impl.rs:7:1
+ error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
3    |
4 LL | impl const std::ops::Add for i32 {
-    | ^^^^^^^^^^^-------------^^^^^---
-    | |          |                 |
-    | |          |                 |
-    | |          |                 `i32` is not defined in the current crate
-    | |          `i32` is not defined in the current crate
-    | impl doesn't use only types from inside the current crate
+    |            ^^^^^^^^^^^^^
10    |
-    = note: define and implement a trait or new type instead
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
- error[E0119]: conflicting implementations of trait `Add` for type `Int`
-   --> $DIR/const-and-non-const-impl.rs:23:1
-   --> $DIR/const-and-non-const-impl.rs:23:1
+ error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
15    |
- LL | impl std::ops::Add for Int {
-    | -------------------------- first implementation here
- ...
- ...
19 LL | impl const std::ops::Add for Int {
-    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Int`
+    |            ^^^^^^^^^^^^^
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
22 error: aborting due to 2 previous errors
23 

- Some errors have detailed explanations: E0117, E0119.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-and-non-const-impl.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-and-non-const-impl" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-and-non-const-impl/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
   |
LL | impl const std::ops::Add for i32 {
   |            ^^^^^^^^^^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
   |
LL | impl const std::ops::Add for Int {
   |            ^^^^^^^^^^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 2 previous errors
------------------------------------------


---
diff of stderr:

- error[E0493]: destructor of `T` cannot be evaluated at compile-time
-   --> $DIR/const-drop-fail.rs:24:36
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
3    |
3    |
- LL | const fn check<T: ~const Destruct>(_: T) {}
-    |                                    ^      - value is dropped here
-    |                                    the destructor for this type cannot be evaluated in constant functions
-    |                                    the destructor for this type cannot be evaluated in constant functions
+ LL | impl const Drop for ConstImplWithDropGlue {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
9 error: aborting due to 1 previous error
10 

- For more information about this error, try `rustc --explain E0493`.
---
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.stock/const-drop-fail.stock.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/const-drop-fail.rs`

error in revision `stock`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stock" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.stock" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.stock/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl const Drop for ConstImplWithDropGlue {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2.rs stdout ----
diff of stderr:

- error[E0493]: destructor of `T` cannot be evaluated at compile-time
-   --> $DIR/const-drop-fail-2.rs:21:36
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
3    |
3    |
- LL | const fn check<T: ~const Destruct>(_: T) {}
-    |                                    ^      - value is dropped here
-    |                                    the destructor for this type cannot be evaluated in constant functions
-    |                                    the destructor for this type cannot be evaluated in constant functions
+ LL | impl<T: ~const A> const Drop for ConstDropImplWithNonConstBounds<T> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
9 error: aborting due to 1 previous error
10 

- For more information about this error, try `rustc --explain E0493`.
- For more information about this error, try `rustc --explain E0493`.
12 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2/const-drop-fail-2.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/const-drop-fail-2.rs`
error: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail-2/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl<T: ~const A> const Drop for ConstDropImplWithNonConstBounds<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.rs#precise stdout ----
diff of stderr:

- error[E0493]: destructor of `T` cannot be evaluated at compile-time
-   --> $DIR/const-drop-fail.rs:24:36
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
3    |
3    |
- LL | const fn check<T: ~const Destruct>(_: T) {}
-    |                                    ^ the destructor for this type cannot be evaluated in constant functions
+ LL | impl const Drop for ConstImplWithDropGlue {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
7 error: aborting due to 1 previous error
8 

- For more information about this error, try `rustc --explain E0493`.
- For more information about this error, try `rustc --explain E0493`.
10 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.precise/const-drop-fail.precise.stderr
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/const-drop-fail.rs`


error in revision `precise`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "precise" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.precise" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop-fail.precise/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl const Drop for ConstImplWithDropGlue {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------



---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const_derives/derive-const-gate.rs stdout ----
diff of stderr:

6    |
7    = help: add `#![feature(derive_const)]` to the crate attributes to enable
8 
- error: aborting due to 1 previous error
+ error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
+    |
+ LL | #[derive_const(Default)]
+    |                ^^^^^^^
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+    = note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
+ error: aborting due to 2 previous errors
10 
11 For more information about this error, try `rustc --explain E0658`.
12 
---
--- stderr -------------------------------
error[E0658]: use of unstable library feature 'derive_const'
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const_derives/derive-const-gate.rs:1:3
   |
LL | #[derive_const(Default)] //~ ERROR use of unstable library feature
   |
   = help: add `#![feature(derive_const)]` to the crate attributes to enable


error: const `impl` for trait `Default` which is not marked with `#[const_trait]`
   |
   |
LL | #[derive_const(Default)] //~ ERROR use of unstable library feature
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
   = note: this error originates in the derive macro `Default` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs#precise stdout ----
diff of stderr:

6    |
7    = note: this item cannot have `~const` trait bounds
- error: aborting due to 1 previous error
- error: aborting due to 1 previous error
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL | impl<'a> const Drop for S<'a> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+ LL |     impl const Drop for ConstDrop {
+    |                ^^^^
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL |     impl<T: ~const SomeTrait> const Drop for ConstDropWithBound<T> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL |     impl<T: SomeTrait> const Drop for ConstDropWithNonconstBound<T> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ error: aborting due to 5 previous errors
10 
11 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise/const-drop.precise.stderr
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/const-drop.rs`


error in revision `precise`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "precise" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: `~const` is not allowed here
   |
   |
LL |     pub struct ConstDropWithBound<T: ~const SomeTrait>(pub core::marker::PhantomData<T>);
   |
   |
   = note: this item cannot have `~const` trait bounds

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl<'a> const Drop for S<'a> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
LL |     impl const Drop for ConstDrop {
   |                ^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL |     impl<T: ~const SomeTrait> const Drop for ConstDropWithBound<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL |     impl<T: SomeTrait> const Drop for ConstDropWithNonconstBound<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 5 previous errors
------------------------------------------



---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs#stock stdout ----
diff of stderr:

6    |
7    = note: this item cannot have `~const` trait bounds
- error: aborting due to 1 previous error
- error: aborting due to 1 previous error
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL | impl<'a> const Drop for S<'a> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+ LL |     impl const Drop for ConstDrop {
+    |                ^^^^
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL |     impl<T: ~const SomeTrait> const Drop for ConstDropWithBound<T> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ 
+ error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
+    |
+    |
+ LL |     impl<T: SomeTrait> const Drop for ConstDropWithNonconstBound<T> {
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
+ error: aborting due to 5 previous errors
10 
11 



The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock/const-drop.stock.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/const-drop.rs`

error in revision `stock`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stock" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error: `~const` is not allowed here
   |
   |
LL |     pub struct ConstDropWithBound<T: ~const SomeTrait>(pub core::marker::PhantomData<T>);
   |
   |
   = note: this item cannot have `~const` trait bounds

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL | impl<'a> const Drop for S<'a> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
LL |     impl const Drop for ConstDrop {
   |                ^^^^
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL |     impl<T: ~const SomeTrait> const Drop for ConstDropWithBound<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change

error: const `impl` for trait `Drop` which is not marked with `#[const_trait]`
   |
   |
LL |     impl<T: SomeTrait> const Drop for ConstDropWithNonconstBound<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 5 previous errors
------------------------------------------


---
--- stderr -------------------------------
error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/default-method-body-is-const-body-checking.rs:15:9
   |
LL |         foo::<()>();
   |         ^^^^^^^^^^^ expected `host`, found `true`
   = note: expected constant `host`
              found constant `true`

error: aborting due to 1 previous error
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0308`.
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.rs#stock stdout ----

error in revision `stock`: ui test compiled successfully!
status: exit status: 0
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stock" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.stock" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.stock/auxiliary"
stderr: none


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.rs#stocknc stdout ----
---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.rs#stocknc stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<cross_crate::NonConst as cross_crate::MyTrait>::func` in constant functions
+ error[E0277]: the trait bound `cross_crate::NonConst: ~const cross_crate::MyTrait` is not satisfied
3    |
4 LL |     NonConst.func();

-    |              ^^^^^^
-    |              ^^^^^^
+    |              ^^^^ the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst`
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    = help: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst`
9 
- error[E0015]: cannot call non-const fn `<cross_crate::Const as cross_crate::MyTrait>::func` in constant functions
-    |
- LL |     Const.func();
-    |           ^^^^^^
-    |
---
22 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.stocknc/cross-crate.stocknc.stderr
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/cross-crate.rs`


error in revision `stocknc`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stocknc" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.stocknc" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/cross-crate.stocknc/auxiliary"
--- stderr -------------------------------
--- stderr -------------------------------
error[E0277]: the trait bound `cross_crate::NonConst: ~const cross_crate::MyTrait` is not satisfied
   |
LL |     NonConst.func();
LL |     NonConst.func();
   |              ^^^^ the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst`
   |
   = help: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const operator in constant functions
-   --> $DIR/generic-bound.rs:25:5
+ error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
3    |
- LL |     arg + arg
-    |     ^^^^^^^^^
-    |
-    |
- note: impl defined here, but it is not `const`
-   --> $DIR/generic-bound.rs:16:1
-    |
10 LL | impl<T> const std::ops::Add for S<T> {
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    |               ^^^^^^^^^^^^^
+    |
+    |
+    = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
+    = note: adding a non-const method body in the future would be a breaking change
15 error: aborting due to 1 previous error
16 

- For more information about this error, try `rustc --explain E0015`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/generic-bound.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/generic-bound" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/generic-bound/auxiliary"
stdout: none
--- stderr -------------------------------
error: const `impl` for trait `Add` which is not marked with `#[const_trait]`
   |
   |
LL | impl<T> const std::ops::Add for S<T> {
   |
   |
   = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const`
   = note: adding a non-const method body in the future would be a breaking change
error: aborting due to 1 previous error
------------------------------------------


---
+    |
+ LL | impl const S {}
+    |      ^^^^^ unconstrained const parameter
+    |
+    = note: expressions using a const parameter must map each value to a distinct output value
+    = note: proving the result of expressions other than the parameter are unique is not supported
+ error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates
+   --> $DIR/inherent-impl.rs:10:6
+    |
+ LL | impl const T {}
+ LL | impl const T {}
+    |      ^^^^^ unconstrained const parameter
+    |
+    = note: expressions using a const parameter must map each value to a distinct output value
+    = note: proving the result of expressions other than the parameter are unique is not supported
+ error: aborting due to 4 previous errors
+ 
+ For more information about this error, try `rustc --explain E0207`.
23 
---
   |
LL | impl const S {}
   |      ^^^^^ unconstrained const parameter
   |
   = note: expressions using a const parameter must map each value to a distinct output value
   = note: proving the result of expressions other than the parameter are unique is not supported
error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/inherent-impl.rs:10:6
   |
LL | impl const T {}
LL | impl const T {}
   |      ^^^^^ unconstrained const parameter
   |
   = note: expressions using a const parameter must map each value to a distinct output value
   = note: proving the result of expressions other than the parameter are unique is not supported
error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0207`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.rs stdout ----

error: ui test compiled successfully!
status: exit status: 0
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-88155.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-88155" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-88155/auxiliary"
stderr: none


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/effects/no-explicit-const-params-cross-crate.rs stdout ----
---
28 
+ error[E0308]: mismatched types
+   --> $DIR/no-explicit-const-params-cross-crate.rs:16:5
+    |
+ LL |     <() as Bar<false>>::bar();
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
+    = note: expected constant `false`
+               found constant `true`
+ 
+ 
29 error[E0107]: function takes 0 generic arguments but 1 generic argument was supplied
31    |

54 LL | pub trait Bar {
55    |           ^^^
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/no-explicit-const-params-cross-crate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/effects/no-explicit-const-params-cross-crate" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/effects/no-explicit-const-params-cross-crate/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0107]: function takes 0 generic arguments but 1 generic argument was supplied
   |
   |
LL |     foo::<false>();
   |     ^^^--------- help: remove these generics
   |     expected 0 generic arguments
   |
note: function defined here, with 0 generic parameters
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:3:14
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:3:14
   |
LL | pub const fn foo() {}
   |              ^^^

error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
   |
   |
LL |     <() as Bar<false>>::bar();
   |            ^^^------- help: remove these generics
   |            expected 0 generic arguments
   |
note: trait defined here, with 0 generic parameters
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:6:11
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:6:11
   |
LL | pub trait Bar {
   |           ^^^

error[E0308]: mismatched types
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/no-explicit-const-params-cross-crate.rs:16:5
   |
LL |     <() as Bar<false>>::bar();
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `false`, found `true`
   = note: expected constant `false`
              found constant `true`


error[E0107]: function takes 0 generic arguments but 1 generic argument was supplied
   |
   |
LL |     foo::<true>();
   |     ^^^-------- help: remove these generics
   |     expected 0 generic arguments
   |
note: function defined here, with 0 generic parameters
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:3:14
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:3:14
   |
LL | pub const fn foo() {}
   |              ^^^

error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
   |
   |
LL |     <() as Bar<true>>::bar();
   |            ^^^------ help: remove these generics
   |            expected 0 generic arguments
   |
note: trait defined here, with 0 generic parameters
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/auxiliary/cross-crate.rs:6:11
---
4 LL |         n => n(),

-    |              ^^^
-    |
-    = note: closures need an RFC before allowed to be called in constants
-    = note: calls in constants are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    |              ^^^ calling non-const function `Bug::inner::{constant#0}::{closure#0}`
11 error: aborting due to 1 previous error
12 

- For more information about this error, try `rustc --explain E0015`.
- For more information about this error, try `rustc --explain E0015`.
+ For more information about this error, try `rustc --explain E0080`.
14 


The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-102985/issue-102985.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/issue-102985.rs`
error: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-102985" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-102985/auxiliary"
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-102985.rs:6:14
   |
   |
LL |         n => n(),
   |              ^^^ calling non-const function `Bug::inner::{constant#0}::{closure#0}`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/issue-92111.rs stdout ----

error: ui test compiled successfully!
status: exit status: 0
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-92111.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-92111" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/issue-92111/auxiliary"
stderr: none


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/non-const-op-const-closure-non-const-outer.rs stdout ----
---

---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs#gated stdout ----
diff of stderr:

- error[E0015]: cannot match on `str` in constant functions
+ warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
2   --> $DIR/match-non-const-eq.rs:7:9
3    |
4 LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
5    |         ^^^
6    |
-    = note: `str` cannot be compared in compile-time, and therefore cannot be used in `match`es
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(effects)]` to the crate attributes to enable
+    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: `#[warn(const_patterns_without_partial_eq)]` on by default
- error: aborting due to 1 previous error
- error: aborting due to 1 previous error
+ error[E0277]: can't compare `str` with `str`
+   --> $DIR/match-non-const-eq.rs:7:9
+    |
+ LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
+    |         ^^^ no implementation for `str == str`
+    |
+    = help: the trait `~const PartialEq` is not implemented for `str`
+    = help: the following other types implement trait `PartialEq<Rhs>`:
+              <str as PartialEq<Cow<'a, str>>>
+              <str as PartialEq<OsString>>
+              <str as PartialEq<OsStr>>
+              <str as PartialEq<String>>
+              <str as PartialEq>
+              <&'a str as PartialEq<OsString>>
+              <&'a str as PartialEq<String>>
+              <&'b str as PartialEq<Cow<'a, str>>>
- For more information about this error, try `rustc --explain E0015`.
+ error: aborting due to 1 previous error; 1 warning emitted
+ 
+ For more information about this error, try `rustc --explain E0277`.
+ For more information about this error, try `rustc --explain E0277`.
+ Future incompatibility report: Future breakage diagnostic:
+ warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
+   --> $DIR/match-non-const-eq.rs:7:9
+    |
+ LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
+    |
+    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: `#[warn(const_patterns_without_partial_eq)]` on by default
14 


The actual stderr differed from the expected stderr.
The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated/match-non-const-eq.gated.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs`
error in revision `gated`: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "gated" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.gated/auxiliary"
--- stderr -------------------------------
warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
##[warning]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: `#[warn(const_patterns_without_partial_eq)]` on by default

error[E0277]: can't compare `str` with `str`
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |         ^^^ no implementation for `str == str`
   |
   = help: the trait `~const PartialEq` is not implemented for `str`
   = help: the following other types implement trait `PartialEq<Rhs>`:
             <str as PartialEq<Cow<'a, str>>>
             <str as PartialEq<OsString>>
             <str as PartialEq<OsStr>>
             <str as PartialEq<String>>
             <str as PartialEq>
             <&'a str as PartialEq<OsString>>
             <&'a str as PartialEq<String>>
             <&'b str as PartialEq<Cow<'a, str>>>
error: aborting due to 1 previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0277`.
Future incompatibility report: Future breakage diagnostic:
Future incompatibility report: Future breakage diagnostic:
warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
##[warning]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: `#[warn(const_patterns_without_partial_eq)]` on by default


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs stdout ----

---
--- stderr -------------------------------
error: cannot specialize on const impl with non-const impl
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs:28:1
   |
LL | / impl<T> Bar for T
LL | | where
LL | |     T: Foo, //FIXME ~ ERROR missing `~const` qualifier
LL | |     T: Specialize,

error[E0119]: conflicting implementations of trait `Baz`
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs:48:1
   |
   |
LL | / impl<T> const Baz for T
LL | | where
LL | |     T: ~const Foo,
   | |__________________- first implementation here
...
LL | / impl<T> const Baz for T //FIXME ~ ERROR conflicting implementations of trait `Baz`
LL | |     T: Foo,
LL | |     T: Specialize,
   | |__________________^ conflicting implementation

---

---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs#stock stdout ----
diff of stderr:

- error[E0015]: cannot match on `str` in constant functions
+ warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
2   --> $DIR/match-non-const-eq.rs:7:9
3    |
4 LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
5    |         ^^^
6    |
-    = note: `str` cannot be compared in compile-time, and therefore cannot be used in `match`es
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: `#[warn(const_patterns_without_partial_eq)]` on by default
- error: aborting due to 1 previous error
- error: aborting due to 1 previous error
+ error[E0277]: can't compare `str` with `str`
+   --> $DIR/match-non-const-eq.rs:7:9
+    |
+ LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
+    |         ^^^ no implementation for `str == str`
+    |
+    = help: the trait `~const PartialEq` is not implemented for `str`
+    = help: the following other types implement trait `PartialEq<Rhs>`:
+              <str as PartialEq<Cow<'a, str>>>
+              <str as PartialEq<OsString>>
+              <str as PartialEq<OsStr>>
+              <str as PartialEq<String>>
+              <str as PartialEq>
+              <&'a str as PartialEq<OsString>>
+              <&'a str as PartialEq<String>>
+              <&'b str as PartialEq<Cow<'a, str>>>
- For more information about this error, try `rustc --explain E0015`.
+ error: aborting due to 1 previous error; 1 warning emitted
+ 
+ For more information about this error, try `rustc --explain E0277`.
+ For more information about this error, try `rustc --explain E0277`.
+ Future incompatibility report: Future breakage diagnostic:
+ warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
+   --> $DIR/match-non-const-eq.rs:7:9
+    |
+ LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
+    |
+    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
+    = note: `#[warn(const_patterns_without_partial_eq)]` on by default
14 


The actual stderr differed from the expected stderr.
The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.stock/match-non-const-eq.stock.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs`

error in revision `stock`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stock" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.stock" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.stock/auxiliary"
--- stderr -------------------------------
warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
##[warning]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: `#[warn(const_patterns_without_partial_eq)]` on by default

error[E0277]: can't compare `str` with `str`
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |         ^^^ no implementation for `str == str`
   |
   = help: the trait `~const PartialEq` is not implemented for `str`
   = help: the following other types implement trait `PartialEq<Rhs>`:
             <str as PartialEq<Cow<'a, str>>>
             <str as PartialEq<OsString>>
             <str as PartialEq<OsStr>>
             <str as PartialEq<String>>
             <str as PartialEq>
             <&'a str as PartialEq<OsString>>
             <&'a str as PartialEq<String>>
             <&'b str as PartialEq<Cow<'a, str>>>
error: aborting due to 1 previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0277`.
Future incompatibility report: Future breakage diagnostic:
Future incompatibility report: Future breakage diagnostic:
warning: to use a constant of type `&str` in a pattern, the type must implement `PartialEq`
##[warning]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/match-non-const-eq.rs:7:9
   |
LL |         "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: for more information, see issue #116122 <https://github.com/rust-lang/rust/issues/116122>
   = note: `#[warn(const_patterns_without_partial_eq)]` on by default


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95187-same-trait-bound-different-constness.rs stdout ----

---
--- stderr -------------------------------
error[E0119]: conflicting implementations of trait `Bar`
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95187-same-trait-bound-different-constness.rs:29:1
   |
LL | / impl<T> Bar for T
LL | |     T: Foo,
   | |___________- first implementation here
...
...
LL | / impl<T> const Bar for T
LL | | where
LL | |     T: ~const Foo,
LL | |     T: Specialize,
   | |__________________^ conflicting implementation
error: cannot specialize on trait `Foo`
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95187-same-trait-bound-different-constness.rs:51:8
   |
   |
LL |     T: ~const Foo,

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0119`.
For more information about this error, try `rustc --explain E0119`.
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs#stock stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<Vec<usize> as Default>::default` in constant functions
2   --> $DIR/std-impl-gate.rs:13:5
3    |
4 LL |     Default::default()


+    |     ^^^^^^^^^^^^^^^^^^ calling non-const function `<Vec<usize> as Default>::default`
+ note: inside `const_context`
+   --> $DIR/std-impl-gate.rs:13:5
+    |
+ LL |     Default::default()
+ LL |     Default::default()
5    |     ^^^^^^^^^^^^^^^^^^
+ note: inside `VAL`
+   --> $DIR/std-impl-gate.rs:18:29
6    |
-    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-    = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+ LL |     const VAL: Vec<usize> = const_context();
9 
10 error: aborting due to 1 previous error
11 

---
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.stock/std-impl-gate.stock.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs`

error in revision `stock`: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--cfg" "stock" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.stock" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.stock/auxiliary"
--- stderr -------------------------------
error[E0080]: evaluation of constant value failed
##[error]  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs:13:5
   |
   |
LL |     Default::default()
   |     ^^^^^^^^^^^^^^^^^^ calling non-const function `<Vec<usize> as Default>::default`
note: inside `const_context`
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs:13:5
   |
LL |     Default::default()
LL |     Default::default()
   |     ^^^^^^^^^^^^^^^^^^
note: inside `VAL`
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/std-impl-gate.rs:18:29
   |
LL |     const VAL: Vec<usize> = const_context();

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0080`.
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `S: ~const Foo` is not satisfied
   |
   |
LL | impl const Bar for S {}
   |                    ^ the trait `~const Foo` is not implemented for `S`
   = help: the trait `Foo` is implemented for `S`
note: required by a bound in `Bar`
  --> /checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail.rs:11:12
   |
   |
LL | trait Bar: ~const Foo {}
   |            ^^^^^^^^^^ required by this bound in `Bar`
error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.
------------------------------------------
------------------------------------------


---- [ui] tests/ui/rfcs/rfc-2632-const-trait-impl/staged-api-user-crate.rs stdout ----
diff of stderr:

- error[E0015]: cannot call non-const fn `<staged_api::Unstable as staged_api::MyTrait>::func` in constant functions
+ error: `<staged_api::Unstable as staged_api::MyTrait>::func` is not yet stable as a const fn
3    |
4 LL |     Unstable::func();

5    |     ^^^^^^^^^^^^^^^^
---
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/rfcs/rfc-2632-const-trait-impl/staged-api-user-crate.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/staged-api-user-crate" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rfcs/rfc-2632-const-trait-impl/staged-api-user-crate/auxiliary"
stdout: none
--- stderr -------------------------------
error: `<staged_api::Unstable as staged_api::MyTrait>::func` is not yet stable as a const fn
   |
LL |     Unstable::func();
   |     ^^^^^^^^^^^^^^^^
   |
---

---- [ui] tests/ui/type-alias-impl-trait/issue-53096.rs stdout ----
diff of stderr:

- error: fatal error triggered by #[rustc_error]
+ error: const parameter `host` is part of concrete type but not used in parameter list for the `impl Trait` type alias
+   --> $DIR/issue-53096.rs:6:5
3    |
- LL | fn main() {}
---
To only update this specific test, also pass `--test-args type-alias-impl-trait/issue-53096.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/type-alias-impl-trait/issue-53096.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/issue-53096" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/issue-53096/auxiliary"
--- stderr -------------------------------
error: const parameter `host` is part of concrete type but not used in parameter list for the `impl Trait` type alias
##[error]  --> /checkout/tests/ui/type-alias-impl-trait/issue-53096.rs:6:5
   |
---
---- [ui] tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs stdout ----

error: test compilation failed although it shouldn't!
status: exit status: 1
command: RUSTC_ICE="0" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs" "-Zthreads=1" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn" "-A" "unused" "-A" "internal_features" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn/auxiliary"
--- stderr -------------------------------
error: const parameter `host` is part of concrete type but not used in parameter list for the `impl Trait` type alias
##[error]  --> /checkout/tests/ui/type-alias-impl-trait/issue-53678-coroutine-and-const-fn.rs:12:9
   |
---
LL | |             return returning;
LL | |         }
   | |_________^
   |
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error: aborting due to 2 previous errors
------------------------------------------

bors · 2023-12-27T22:21:43Z

☔ The latest upstream changes (presumably #119099) made this pull request unmergeable. Please resolve the merge conflicts.

rustbot assigned spastorino Dec 18, 2023

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Dec 18, 2023

fee1-dead requested a review from nnethercote December 18, 2023 16:23

fee1-dead unassigned spastorino Dec 18, 2023

fee1-dead removed the request for review from nnethercote December 18, 2023 16:23

[experiment] turn on effects everywhere

212d9c9

fee1-dead force-pushed the effects-everywhere branch from 25306f1 to 212d9c9 Compare December 23, 2023 14:50

Dylan-DPC added S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 20, 2024

fee1-dead closed this Jun 25, 2024

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