Closed
Description
auto-reduced (treereduce-rust):
trait Hello {
fn example(val: T);
}
struct Test1(i32);
impl Hello for Test1 {
fn example(&self, input: &i32) {
*input = self.0;
}
}
original:
trait Hello {
fn example(val: T); // should suggest here
}
struct Test1(i32);
impl Hello for Test1 {
fn example(&self, input: &i32) { // should not suggest here
*input = self.0; //~ ERROR cannot assign
}
}
struct Test2(i32);
impl Hello for Test2 {
fn example(&self, input: &i32) { // should not suggest here
self.0 += *input; //~ ERROR cannot assign
}
}
fn main() { }Version information
rustc 1.78.0-nightly (b381d3ab2 2024-02-12)
binary: rustc
commit-hash: b381d3ab27f788f990551100c4425bb782d26d76
commit-date: 2024-02-12
host: x86_64-unknown-linux-gnu
release: 1.78.0-nightly
LLVM version: 17.0.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error[E0412]: cannot find type `T` in this scope
--> /tmp/icemaker_global_tempdir.r53dfo7rqFNJ/rustc_testrunner_tmpdir_reporting.0vPBTfW1Hynm/mvce.rs:2:21
|
2 | fn example(val: T);
| ^ not found in this scope
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.r53dfo7rqFNJ/rustc_testrunner_tmpdir_reporting.0vPBTfW1Hynm/mvce.rs:11:2
|
11 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.r53dfo7rqFNJ/rustc_testrunner_tmpdir_reporting.0vPBTfW1Hynm/mvce.rs`
error[E0185]: method `example` has a `&self` declaration in the impl, but not in the trait
--> /tmp/icemaker_global_tempdir.r53dfo7rqFNJ/rustc_testrunner_tmpdir_reporting.0vPBTfW1Hynm/mvce.rs:8:5
|
2 | fn example(val: T);
| ------------------- trait method declared without `&self`
...
8 | fn example(&self, input: &i32) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `&self` used in impl
thread 'rustc' panicked at compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs:703:60:
index out of bounds: the len is 1 but the index is 1
stack backtrace:
0: 0x7f211a988476 - std::backtrace_rs::backtrace::libunwind::trace::h3f288a3148e8bb15
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7f211a988476 - std::backtrace_rs::backtrace::trace_unsynchronized::h7277353061928bc0
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f211a988476 - std::sys_common::backtrace::_print_fmt::hbf79f06a8c92ca0e
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7f211a988476 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0afd1ff8e38a8a84
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f211a9db030 - core::fmt::rt::Argument::fmt::h7f26a9b6a6522b09
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/core/src/fmt/rt.rs:142:9
5: 0x7f211a9db030 - core::fmt::write::he7de9de816f98016
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/core/src/fmt/mod.rs:1120:17
6: 0x7f211a97bc6f - std::io::Write::write_fmt::h38e65bf4265dc66c
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/io/mod.rs:1854:15
7: 0x7f211a988254 - std::sys_common::backtrace::_print::hf1424a842a74edeb
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f211a988254 - std::sys_common::backtrace::print::hbb43acdb160822bd
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f211a98b047 - std::panicking::default_hook::{{closure}}::h9c602a562527e529
10: 0x7f211a98ada9 - std::panicking::default_hook::h9cb3bf5f6c73326f
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/panicking.rs:292:9
11: 0x7f211775cfdc - std[73253c920228642]::panicking::update_hook::<alloc[940273873142bb35]::boxed::Box<rustc_driver_impl[f037f419b039420a]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f211a98b796 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1e0fe9ec90d27cc3
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/alloc/src/boxed.rs:2030:9
13: 0x7f211a98b796 - std::panicking::rust_panic_with_hook::hb5ad56797fd964c4
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/panicking.rs:785:13
14: 0x7f211a98b4e2 - std::panicking::begin_panic_handler::{{closure}}::hd364aeee29433213
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/panicking.rs:659:13
15: 0x7f211a988976 - std::sys_common::backtrace::__rust_end_short_backtrace::ha10bb1568b9ec73d
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7f211a98b234 - rust_begin_unwind
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/panicking.rs:647:5
17: 0x7f211a9d7785 - core::panicking::panic_fmt::h91fa7152f33c7717
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/core/src/panicking.rs:72:14
18: 0x7f211a9d79d2 - core::panicking::panic_bounds_check::h0d1f1f7efe646722
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/core/src/panicking.rs:208:5
19: 0x7f211757016b - <rustc_borrowck[80a3d1af88a5539b]::MirBorrowckCtxt>::suggest_make_local_mut
20: 0x7f2117044ba7 - <rustc_borrowck[80a3d1af88a5539b]::MirBorrowckCtxt>::report_mutability_error
21: 0x7f211986556b - rustc_borrowck[80a3d1af88a5539b]::do_mir_borrowck
22: 0x7f211981bb8f - rustc_borrowck[80a3d1af88a5539b]::mir_borrowck
23: 0x7f211981b5d9 - rustc_query_impl[b78e7f0549dc02d3]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b78e7f0549dc02d3]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[dbb6cff8550fbced]::query::erase::Erased<[u8; 8usize]>>
24: 0x7f2118b70bfa - rustc_query_system[74854bfa6cddafab]::query::plumbing::try_execute_query::<rustc_query_impl[b78e7f0549dc02d3]::DynamicConfig<rustc_query_system[74854bfa6cddafab]::query::caches::VecCache<rustc_span[a4806a91d128f927]::def_id::LocalDefId, rustc_middle[dbb6cff8550fbced]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[b78e7f0549dc02d3]::plumbing::QueryCtxt, false>
25: 0x7f2118b70590 - rustc_query_impl[b78e7f0549dc02d3]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
26: 0x7f21193e0576 - rustc_interface[ceb207a8fb5539d]::passes::analysis
27: 0x7f21193e005f - rustc_query_impl[b78e7f0549dc02d3]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[b78e7f0549dc02d3]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[dbb6cff8550fbced]::query::erase::Erased<[u8; 1usize]>>
28: 0x7f21198c6064 - rustc_query_system[74854bfa6cddafab]::query::plumbing::try_execute_query::<rustc_query_impl[b78e7f0549dc02d3]::DynamicConfig<rustc_query_system[74854bfa6cddafab]::query::caches::SingleCache<rustc_middle[dbb6cff8550fbced]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[b78e7f0549dc02d3]::plumbing::QueryCtxt, false>
29: 0x7f21198c5dc7 - rustc_query_impl[b78e7f0549dc02d3]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
30: 0x7f21197409fb - rustc_interface[ceb207a8fb5539d]::interface::run_compiler::<core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>, rustc_driver_impl[f037f419b039420a]::run_compiler::{closure#0}>::{closure#0}
31: 0x7f211996ef12 - std[73253c920228642]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[ceb207a8fb5539d]::util::run_in_thread_with_globals<rustc_interface[ceb207a8fb5539d]::util::run_in_thread_pool_with_globals<rustc_interface[ceb207a8fb5539d]::interface::run_compiler<core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>, rustc_driver_impl[f037f419b039420a]::run_compiler::{closure#0}>::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>
32: 0x7f211996ed3e - <<std[73253c920228642]::thread::Builder>::spawn_unchecked_<rustc_interface[ceb207a8fb5539d]::util::run_in_thread_with_globals<rustc_interface[ceb207a8fb5539d]::util::run_in_thread_pool_with_globals<rustc_interface[ceb207a8fb5539d]::interface::run_compiler<core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>, rustc_driver_impl[f037f419b039420a]::run_compiler::{closure#0}>::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[ed182bbac36ed604]::result::Result<(), rustc_span[a4806a91d128f927]::ErrorGuaranteed>>::{closure#1} as core[ed182bbac36ed604]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x7f211a994985 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h37d86e7af57ec8cf
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/alloc/src/boxed.rs:2016:9
34: 0x7f211a994985 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h99a2218ed45ac1ce
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/alloc/src/boxed.rs:2016:9
35: 0x7f211a994985 - std::sys::pal::unix::thread::Thread::new::thread_start::h6344e9d30547345d
at /rustc/b381d3ab27f788f990551100c4425bb782d26d76/library/std/src/sys/pal/unix/thread.rs:108:17
36: 0x7f21148749eb - <unknown>
37: 0x7f21148f87cc - <unknown>
38: 0x0 - <unknown>
error: 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 1.78.0-nightly (b381d3ab2 2024-02-12) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [mir_borrowck] borrow-checking `<impl at /tmp/icemaker_global_tempdir.r53dfo7rqFNJ/rustc_testrunner_tmpdir_reporting.0vPBTfW1Hynm/mvce.rs:7:1: 7:21>::example`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0185, E0412, E0601.
For more information about an error, try `rustc --explain E0185`.