Closed
Description
openedon Aug 4, 2021
Code
fn main() {
let mut arr = vec![vec![]];
arr[0][0] = arr[0][0] = true;
}Meta
Results in an ICE on both the latest nightly and stable versions:
rustc 1.56.0-nightly (a6ece5615 2021-08-03)
binary: rustc
commit-hash: a6ece56152d8eb11e049e9fcce147b2859e12c92
commit-date: 2021-08-03
host: x86_64-unknown-linux-gnu
release: 1.56.0-nightly
LLVM version: 12.0.1
rustc 1.54.0 (a178d0322 2021-07-26)
binary: rustc
commit-hash: a178d0322ce20e33eac124758e837cbd80a6f633
commit-date: 2021-07-26
host: x86_64-unknown-linux-gnu
release: 1.54.0
LLVM version: 12.0.1
Error output
Compiling play v0.1.0 (/tmp/play)
warning: Error finalizing incremental compilation session directory `/tmp/play/target/debug/incremental/play-26d7ofbz97wss/s-g141ls6r72-s5ddqo-working`: No such file or directory (os error 2)
error: internal compiler error[E0308]: mismatched types
--> src/main.rs:3:17
|
3 | arr[0][0] = arr[0][1] = true;
| ^^^^^^^^^^^^^^^^ expected `bool`, found `()`
error: internal compiler error: broken MIR in DefId(0:3 ~ play[8f25]::main) ((*_10) = const ()): bad assignment (bool = ()): NoSolution
--> src/main.rs:3:5
|
3 | arr[0][0] = arr[0][1] = true;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: delayed at compiler/rustc_mir/src/borrow_check/type_check/mod.rs:299:27
error: internal compiler error: broken MIR in Item(WithOptConstParam { did: DefId(0:3 ~ play[8f25]::main), const_param_did: None }) (end of phase Optimization) at bb6[0]:
encountered `Assign(((*_10), const ()))` with incompatible types:
left-hand side has type: bool
right-hand side has type: ()
--> src/main.rs:3:5
|
3 | arr[0][0] = arr[0][1] = true;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: delayed at compiler/rustc_mir/src/transform/validate.rs:121:36
thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', compiler/rustc_errors/src/lib.rs:1050:13
note: run with `RUST_BACKTRACE=1` environment variable to display a 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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.56.0-nightly (a6ece5615 2021-08-03) running on x86_64-unknown-linux-gnu
note: compiler flags: -C embed-bitcode=no -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
warning: `play` (bin "play") generated 1 warning
error: could not compile `play`; 1 warning emitted
Backtrace
thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', compiler/rustc_errors/src/lib.rs:1050:13
stack backtrace:
0: 0x7f3eb028b6e0 - std::backtrace_rs::backtrace::libunwind::trace::h820df6e5a36600f2
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
1: 0x7f3eb028b6e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h08422e102b839b36
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f3eb028b6e0 - std::sys_common::backtrace::_print_fmt::h57fa141da5c1d78f
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys_common/backtrace.rs:67:5
3: 0x7f3eb028b6e0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he771973a791a4e00
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys_common/backtrace.rs:46:22
4: 0x7f3eb02f97bc - core::fmt::write::h9a6d9c74526a6c1b
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/core/src/fmt/mod.rs:1117:17
5: 0x7f3eb027cf25 - std::io::Write::write_fmt::h9d3df603db3c3ca4
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/io/mod.rs:1667:15
6: 0x7f3eb028ed2b - std::sys_common::backtrace::_print::ha158db1ea88125c4
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys_common/backtrace.rs:49:5
7: 0x7f3eb028ed2b - std::sys_common::backtrace::print::h342dde07e263fe00
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys_common/backtrace.rs:36:9
8: 0x7f3eb028ed2b - std::panicking::default_hook::{{closure}}::h642e95a669718f6e
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:208:50
9: 0x7f3eb028e8a0 - std::panicking::default_hook::hc5055134d92c4284
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:225:9
10: 0x7f3eb0a6dd51 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::haff05a7eace0faae
11: 0x7f3eb028f559 - std::panicking::rust_panic_with_hook::h6f45f3f96085621d
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:627:17
12: 0x7f3eb028f017 - std::panicking::begin_panic_handler::{{closure}}::h8cc693a35602cb15
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:520:13
13: 0x7f3eb028bbcc - std::sys_common::backtrace::__rust_end_short_backtrace::h89bf48eb2468d1e3
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys_common/backtrace.rs:141:18
14: 0x7f3eb028ef79 - rust_begin_unwind
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:516:5
15: 0x7f3eb02585cb - std::panicking::begin_panic_fmt::h7b704e109b8f89ba
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/panicking.rs:458:5
16: 0x7f3eb2ec7a49 - rustc_errors::HandlerInner::flush_delayed::h1214dd69c94464a0
17: 0x7f3eb2ec64ad - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::h99b093f7064b7696
18: 0x7f3eb257c886 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::hf782bb3707a77e2d
19: 0x7f3eb257e5fe - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::h30c9788e90bfa607
20: 0x7f3eb2552a6d - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h04cee182ac6141b7
21: 0x7f3eb25521b3 - rustc_span::with_source_map::h8044517cb42f9e14
22: 0x7f3eb2563f3a - rustc_interface::interface::create_compiler_and_run::h600b31664ea7498c
23: 0x7f3eb2556099 - scoped_tls::ScopedKey<T>::set::h67b78cee48afc23b
24: 0x7f3eb25525aa - std::sys_common::backtrace::__rust_begin_short_backtrace::h7d4575ab5f030af1
25: 0x7f3eb25518e5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0e7f7efed8d1ac6c
26: 0x7f3eb029c1c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he2a466339cf4c9af
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/alloc/src/boxed.rs:1572:9
27: 0x7f3eb029c1c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1f2d848478877ebe
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/alloc/src/boxed.rs:1572:9
28: 0x7f3eb029c1c7 - std::sys::unix::thread::Thread::new::thread_start::h12773e412063ea14
at /rustc/a6ece56152d8eb11e049e9fcce147b2859e12c92/library/std/src/sys/unix/thread.rs:91:17
29: 0x7f3eb01b5eae - start_thread
at /builddir/glibc-2.32/nptl/pthread_create.c:463:8
30: 0x7f3eb00d42ff - __GI___clone
at /builddir/glibc-2.32/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
31: 0x0 - <unknown>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment