ICE: 'derive attribute should exist', src/librustc_expand/expand.rs:505:1

[matthiaskrgr]

git clone https://github.com/TrueWarg/grrs/
cd grrs
cargo check

Code

use structopt::StructOpt;

#[derive(StructOpt)]
struct CLI {
    pattern: String,
    #[derive(parse(from_os_str))]
    path: std::path::PathBuf
}

fn main() {
}

Meta

rustc --version --verbose:

rustc 1.43.0-nightly (2c462a2f7 2020-02-20)
binary: rustc
commit-hash: 2c462a2f776b899d46743b1b44eda976e846e61d
commit-date: 2020-02-20
host: x86_64-unknown-linux-gnu
release: 1.43.0-nightly
LLVM version: 9.0

Error output

    Checking grrs v0.1.0 (/tmp/grrs)
error: traits in `#[derive(...)]` don't accept arguments
 --> src/main.rs:6:19
  |
6 |     #[derive(parse(from_os_str))]
  |                   ^^^^^^^^^^^^^ help: remove the arguments

thread 'rustc' panicked at '`derive` attribute should exist', src/librustc_expand/expand.rs:505:13
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1052
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1428
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:204
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:224
  10: rustc_driver::report_ice
  11: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
             at /rustc/2c462a2f776b899d46743b1b44eda976e846e61d/src/liballoc/boxed.rs:1031
  12: proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}
             at /rustc/2c462a2f776b899d46743b1b44eda976e846e61d/src/libproc_macro/bridge/client.rs:305
  13: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:474
  14: rust_begin_unwind
             at src/libstd/panicking.rs:378
  15: core::panicking::panic_fmt
             at src/libcore/panicking.rs:85
  16: core::option::expect_failed
             at src/libcore/option.rs:1203
  17: rustc_expand::expand::MacroExpander::fully_expand_fragment
  18: rustc_expand::expand::MacroExpander::expand_crate
  19: rustc_session::utils::<impl rustc_session::session::Session>::time
  20: rustc_interface::passes::configure_and_expand_inner
  21: rustc_interface::passes::configure_and_expand::{{closure}}
  22: rustc_data_structures::box_region::PinnedGenerator<I,A,R>::new
  23: rustc_interface::passes::configure_and_expand
  24: rustc_interface::queries::Queries::expansion
  25: rustc_interface::interface::run_compiler_in_existing_thread_pool
  26: scoped_tls::ScopedKey<T>::set
  27: syntax::attr::with_globals
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.43.0-nightly (2c462a2f7 2020-02-20) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 -C incremental -C target-cpu=native --crate-type bin

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack
error: aborting due to previous error

error: could not compile `grrs`.

To learn more, run the command again with --verbose.

[matthiaskrgr]

This crashes on stable, beta and nightly.

[Centril]

cc @petrochenkov

[pnkfelix]

godbolt says this regressed between releases 1.40 and 1.41.

[pnkfelix]

triage: P-high to bisect and determine severity. Removing nomination. Added stable-to-stable regression label.

[chrissimpkins]

searched nightlies: from nightly-2019-11-01 to nightly-2020-02-25
regressed nightly: nightly-2019-12-08
searched commits: from ae1b871 to 5c5c8eb
regressed commit: 41601a8
source code: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=b7ea70ffbf916dccefcab318e419a84c

Instructions

$ cargo bisect-rustc --start ae1b871cca56613b1af1a5121dd24ac810ff4b89 --end 41601a8c95240cada94c13466a1fea02e5fe87ed --regress=ice

Confirmed automated tests with manual run using --prompt

Error

Before ICE

COLLAPSIBLE ERROR STACKTRACE

error: expected one of `)`, `,`, or `::`, found `(`
 --> src/main.rs:6:19
  |
6 |     #[derive(parse(from_os_str))]
  |                   ^ expected one of `)`, `,`, or `::`

error[E0432]: unresolved import `structopt`
 --> src/main.rs:1:5
  |
1 | use structopt::StructOpt;
  |     ^^^^^^^^^ use of undeclared type or module `structopt`

error: cannot determine resolution for the derive macro `StructOpt`
 --> src/main.rs:3:10
  |
3 | #[derive(StructOpt)]
  |          ^^^^^^^^^
  |
  = note: import resolution is stuck, try simplifying macro imports

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0432`.
error: could not compile `bisectit`.

To learn more, run the command again with --verbose.

ICE

COLLAPSIBLE ERROR STACKTRACE

error: traits in `#[derive(...)]` don't accept arguments
 --> src/main.rs:6:19
  |
6 |     #[derive(parse(from_os_str))]
  |                   ^^^^^^^^^^^^^ help: remove the arguments

thread 'rustc' panicked at '`derive` attribute should exist', src/librustc_expand/expand.rs:507:13
stack backtrace:
   0: backtrace::backtrace::libunwind::trace
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
   1: backtrace::backtrace::trace_unsynchronized
             at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
   2: std::sys_common::backtrace::_print_fmt
             at src/libstd/sys_common/backtrace.rs:78
   3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
             at src/libstd/sys_common/backtrace.rs:59
   4: core::fmt::write
             at src/libcore/fmt/mod.rs:1053
   5: std::io::Write::write_fmt
             at src/libstd/io/mod.rs:1428
   6: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:62
   7: std::sys_common::backtrace::print
             at src/libstd/sys_common/backtrace.rs:49
   8: std::panicking::default_hook::{{closure}}
             at src/libstd/panicking.rs:204
   9: std::panicking::default_hook
             at src/libstd/panicking.rs:224
  10: rustc_driver::report_ice
  11: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:474
  12: rust_begin_unwind
             at src/libstd/panicking.rs:378
  13: core::panicking::panic_fmt
             at src/libcore/panicking.rs:85
  14: core::option::expect_failed
             at src/libcore/option.rs:1203
  15: rustc_expand::expand::MacroExpander::fully_expand_fragment
  16: rustc_expand::expand::MacroExpander::expand_crate
  17: rustc_session::utils::<impl rustc_session::session::Session>::time
  18: rustc_interface::passes::configure_and_expand_inner
  19: rustc_interface::passes::configure_and_expand::{{closure}}
  20: rustc_data_structures::box_region::PinnedGenerator<I,A,R>::new
  21: rustc_interface::passes::configure_and_expand
  22: rustc_interface::queries::Queries::expansion
  23: rustc_interface::interface::run_compiler_in_existing_thread_pool
  24: syntax::attr::with_globals
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.43.0-nightly (abc3073c9 2020-02-26) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack
error: aborting due to previous error

error: could not compile `bisectit`.

[chrissimpkins]

@rustbot modify labels: -E-needs-bisection

[chrissimpkins]

Maybe #67052?

[Centril]

Reduced:

fn main() {}

struct CLI {
    #[derive(parse())]
    path: (),
}

[Centril]

Fixed by #69522.