Rollup of 6 pull requests

[Dylan-DPC-zz]

Successful merges:

• Add allocation information to undefined behaviour errors. #76881 (Add allocation information to undefined behaviour errors.)
• give full path of constraint in suggest_constraining_type_param #83673 (give full path of constraint in suggest_constraining_type_param)
• Add a regression test for issue-68830 #83699 (Add a regression test for issue-68830)
• Fix documentation of conversion from String to OsString #83700 (Fix documentation of conversion from String to OsString)
• Clarify --print target-list is a rustc's option #83711 (Clarify --print target-list is a rustc's option)
• Update LLVM with another wasm simd fix #83712 (Update LLVM with another wasm simd fix)

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

[Dylan-DPC-zz]

@bors r+ rollup=never p=5

[bors]

📌 Commit cbdb5ef has been approved by Dylan-DPC

[bors]

⌛ Testing commit cbdb5ef with merge 0a9b330dbc81791a619a79560f4b8ac8c37283cc...

[rust-log-analyzer]

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

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

---- [ui] ui/consts/const-eval/union-const-eval-field.rs stdout ----
diff of 32bit.stderr:

5    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
6    |
7    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
-    = note: the raw bytes of the constant (size: 8, align: 4) {
+    = note: the raw bytes of the constant (size: 8, align: 8) {
9                __ __ __ __ __ __ __ __                         │ ░░░░░░░░
11 


The actual 32bit.stderr differed from the expected 32bit.stderr.
The actual 32bit.stderr differed from the expected 32bit.stderr.
Actual 32bit.stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-const-eval-field/union-const-eval-field.32bit.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args consts/const-eval/union-const-eval-field.rs`
Some tests failed in compiletest suite=ui mode=ui host=x86_64-unknown-linux-gnu target=arm-unknown-linux-gnueabihf
error: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/consts/const-eval/union-const-eval-field.rs" "-Zthreads=1" "--target=arm-unknown-linux-gnueabihf" "--error-format" "json" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zemit-future-incompat-report" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-const-eval-field" "-A" "unused" "-Crpath" "-O" "-Cdebuginfo=0" "-Zunstable-options" "-Lnative=/checkout/obj/build/arm-unknown-linux-gnueabihf/native/rust-test-helpers" "-Clinker=arm-linux-gnueabihf-gcc" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-const-eval-field/auxiliary"
------------------------------------------

------------------------------------------
stderr:
stderr:
------------------------------------------
error[E0080]: it is undefined behavior to use this value
  --> /checkout/src/test/ui/consts/const-eval/union-const-eval-field.rs:31:5
   |
LL |     const FIELD3: Field3 = unsafe { UNION.field3 };
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
   = note: the raw bytes of the constant (size: 8, align: 8) {
               __ __ __ __ __ __ __ __                         │ ░░░░░░░░

error: aborting due to previous error

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

------------------------------------------


---- [ui] ui/consts/const-eval/union-ice.rs stdout ----
diff of 32bit.stderr:

5    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
6    |
7    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
-    = note: the raw bytes of the constant (size: 8, align: 4) {
+    = note: the raw bytes of the constant (size: 8, align: 8) {
9                __ __ __ __ __ __ __ __                         │ ░░░░░░░░
11 


19    | |__^ type validation failed: encountered uninitialized bytes at .b, but expected initialized plain (non-pointer) bytes
20    |
21    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
-    = note: the raw bytes of the constant (size: 12, align: 4) {
-                __ __ __ __ __ __ __ __ 2a __ __ __             │ ░░░░░░░░*░░░
+    = note: the raw bytes of the constant (size: 16, align: 8) {
+                __ __ __ __ __ __ __ __ 2a __ __ __ __ __ __ __ │ ░░░░░░░░*░░░░░░░
25 
26 error[E0080]: it is undefined behavior to use this value


36    | |__^ type validation failed: encountered uninitialized bytes at .b[1]
37    |
38    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
-    = note: the raw bytes of the constant (size: 36, align: 4) {
+    = note: the raw bytes of the constant (size: 40, align: 8) {
40                0x00 │ 15 00 00 00 00 00 00 00 __ __ __ __ __ __ __ __ │ ........░░░░░░░░
41                0x10 │ 17 00 00 00 00 00 00 00 18 00 00 00 00 00 00 00 │ ................
-                0x20 │ 2a __ __ __                                     │ *░░░
+                0x20 │ 2a __ __ __ __ __ __ __                         │ *░░░░░░░
44 
45 error: aborting due to 3 previous errors



The actual 32bit.stderr differed from the expected 32bit.stderr.
Actual 32bit.stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-ice/union-ice.32bit.stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args consts/const-eval/union-ice.rs`
error: 1 errors occurred comparing output.
status: exit status: 1
status: exit status: 1
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/consts/const-eval/union-ice.rs" "-Zthreads=1" "--target=arm-unknown-linux-gnueabihf" "--error-format" "json" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zemit-future-incompat-report" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-ice" "-A" "unused" "-Crpath" "-O" "-Cdebuginfo=0" "-Zunstable-options" "-Lnative=/checkout/obj/build/arm-unknown-linux-gnueabihf/native/rust-test-helpers" "-Clinker=arm-linux-gnueabihf-gcc" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/consts/const-eval/union-ice/auxiliary"
------------------------------------------

------------------------------------------
stderr:
stderr:
------------------------------------------
error[E0080]: it is undefined behavior to use this value
  --> /checkout/src/test/ui/consts/const-eval/union-ice.rs:17:1
   |
LL | const FIELD3: Field3 = unsafe { UNION.field3 }; //~ ERROR it is undefined behavior to use this value
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
   = note: the raw bytes of the constant (size: 8, align: 8) {
               __ __ __ __ __ __ __ __                         │ ░░░░░░░░

error[E0080]: it is undefined behavior to use this value
  --> /checkout/src/test/ui/consts/const-eval/union-ice.rs:19:1
   |
   |
LL | / const FIELD_PATH: Struct = Struct { //~ ERROR it is undefined behavior to use this value
LL | |     a: 42,
LL | |     b: unsafe { UNION.field3 },
LL | | };
   | |__^ type validation failed: encountered uninitialized bytes at .b, but expected initialized plain (non-pointer) bytes
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
   = note: the raw bytes of the constant (size: 16, align: 8) {
               __ __ __ __ __ __ __ __ 2a __ __ __ __ __ __ __ │ ░░░░░░░░*░░░░░░░

error[E0080]: it is undefined behavior to use this value
  --> /checkout/src/test/ui/consts/const-eval/union-ice.rs:29:1
   |
   |
LL | / const FIELD_PATH2: Struct2 = Struct2 { //~ ERROR it is undefined behavior to use this value
LL | |     b: [
LL | |         21,
LL | |         unsafe { UNION.field3 },
LL | |     a: 42,
LL | | };
LL | | };
   | |__^ type validation failed: encountered uninitialized bytes at .b[1]
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
   = note: the raw bytes of the constant (size: 40, align: 8) {
               0x00 │ 15 00 00 00 00 00 00 00 __ __ __ __ __ __ __ __ │ ........░░░░░░░░
               0x10 │ 17 00 00 00 00 00 00 00 18 00 00 00 00 00 00 00 │ ................
               0x20 │ 2a __ __ __ __ __ __ __                         │ *░░░░░░░

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0080`.
---
test result: FAILED. 11572 passed; 2 failed; 152 ignored; 0 measured; 0 filtered out; finished in 694.47s



command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/arm-unknown-linux-gnueabihf/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-arm-unknown-linux-gnueabihf" "--suite" "ui" "--mode" "ui" "--target" "arm-unknown-linux-gnueabihf" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/checkout/obj/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--linker" "arm-linux-gnueabihf-gcc" "--host-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Cdebuginfo=0 -Zunstable-options  -Lnative=/checkout/obj/build/arm-unknown-linux-gnueabihf/native/rust-test-helpers" "--docck-python" "/usr/bin/python3" "--lldb-python" "/usr/bin/python3" "--llvm-version" "12.0.0-rust-1.53.0-nightly" "--llvm-components" "aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils aggressiveinstcombine all all-targets analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils asmparser asmprinter avr avrasmparser avrcodegen avrdesc avrdisassembler avrinfo binaryformat bitreader bitstreamreader bitwriter cfguard codegen core coroutines coverage debuginfocodeview debuginfodwarf debuginfogsym debuginfomsf debuginfopdb demangle dlltooldriver dwarflinker engine executionengine extensions filecheck frontendopenacc frontendopenmp fuzzmutate globalisel hellonew hexagon hexagonasmparser hexagoncodegen hexagondesc hexagondisassembler hexagoninfo instcombine instrumentation interfacestub interpreter ipo irreader jitlink libdriver lineeditor linker lto mc mca mcdisassembler mcjit mcparser mips mipsasmparser mipscodegen mipsdesc mipsdisassembler mipsinfo mirparser msp430 msp430asmparser msp430codegen msp430desc msp430disassembler msp430info native nativecodegen nvptx nvptxcodegen nvptxdesc nvptxinfo objcarcopts object objectyaml option orcjit orcshared orctargetprocess passes powerpc powerpcasmparser powerpccodegen powerpcdesc powerpcdisassembler powerpcinfo profiledata remarks riscv riscvasmparser riscvcodegen riscvdesc riscvdisassembler riscvinfo runtimedyld scalaropts selectiondag sparc sparcasmparser sparccodegen sparcdesc sparcdisassembler sparcinfo support symbolize systemz systemzasmparser systemzcodegen systemzdesc systemzdisassembler systemzinfo tablegen target textapi transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler webassemblyinfo windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info xray" "--cc" "" "--cxx" "" "--cflags" "" "--remote-test-client" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/remote-test-client" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"


failed to run: /checkout/obj/build/bootstrap/debug/bootstrap --stage 2 test --host= --target arm-unknown-linux-gnueabihf
Build completed unsuccessfully in 0:29:33

[bors]

💔 Test failed - checks-actions

[bors]

☔ The latest upstream changes (presumably #76881) made this pull request unmergeable. Please resolve the merge conflicts.