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Something in the standard library. We caught this in our integration pipeline.
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rustc --version --verbose
:
1.71.0-nightly (9c51cf7e7 2023-04-19) running on x86_64-apple-darwin
Error output
Building stage2 library artifacts (x86_64-apple-darwin -> x86_64-unknown-linux-gnu)
Compiling cc v1.0.77
Compiling core v0.0.0 (/opt/s/w/ir/x/w/fuchsia-third_party-rust/library/core)
Compiling libc v0.2.140
Compiling memchr v2.5.0
Compiling std v0.0.0 (/opt/s/w/ir/x/w/fuchsia-third_party-rust/library/std)
Compiling compiler_builtins v0.1.91
Compiling unwind v0.0.0 (/opt/s/w/ir/x/w/fuchsia-third_party-rust/library/unwind)
Compiling profiler_builtins v0.0.0 (/opt/s/w/ir/x/w/fuchsia-third_party-rust/library/profiler_builtins)
thread 'rustc' panicked at 'assertion failed: ptr::eq(context.tcx.gcx as *const _ as *const (),\n tcx.gcx as *const _ as *const ())', /opt/s/w/ir/x/w/fuchsia-third_party-rust/compiler/rustc_middle/src/ty/context/tls.rs:126:9
stack backtrace:
0: rust_begin_unwind
at ./library/std/src/panicking.rs:578:5
1: core::panicking::panic_fmt
at ./library/core/src/panicking.rs:67:14
2: core::panicking::panic
at ./library/core/src/panicking.rs:117:5
3: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::region_scope_tree, rustc_query_impl::plumbing::QueryCtxt>
4: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::region_scope_tree
5: <rustc_hir_typeck::fn_ctxt::FnCtxt>::resolve_rvalue_scopes
6: rustc_hir_typeck::typeck
7: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::typeck, rustc_query_impl::plumbing::QueryCtxt>
8: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck
9: rustc_hir_typeck::typeck_item_bodies
10: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::typeck_item_bodies, rustc_query_impl::plumbing::QueryCtxt>
11: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies
12: rustc_hir_analysis::check_crate
13: rustc_interface::passes::analysis
14: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
15: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
16: <rustc_interface::queries::QueryResult<&rustc_middle::ty::context::GlobalCtxt>>::enter::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure#4}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
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 1.71.0-nightly (9c51cf7e7 2023-04-19) running on x86_64-apple-darwin
note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2 -Z unstable-options -C linker=/opt/s/w/ir/x/w/cipd/bin/clang++ -C link-arg=--target=x86_64-unknown-linux-gnu -C link-arg=--sysroot=/opt/s/w/ir/x/w/cipd/linux -C link-arg=-fuse-ld=lld -C link-arg=-Wl,--undefined-version -C symbol-mangling-version=legacy -Z unstable-options -Z unstable-options -Z macro-backtrace -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -C split-debuginfo=unpacked -C prefer-dynamic -Z inline-mir -C embed-bitcode=yes -Z crate-attr=doc(html_root_url="https://doc.rust-lang.org/nightly/") -Z binary-dep-depinfo -Z force-unstable-if-unmarked
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [typeck] type-checking `num::flt2dec::to_shortest_exp_str`
#1 [typeck_item_bodies] type-checking all item bodies
#2 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `core`
Link to full build output here.
Backtrace
stack backtrace:
0: rust_begin_unwind
at ./library/std/src/panicking.rs:578:5
1: core::panicking::panic_fmt
at ./library/core/src/panicking.rs:67:14
2: core::panicking::panic
at ./library/core/src/panicking.rs:117:5
3: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::region_scope_tree, rustc_query_impl::plumbing::QueryCtxt>
4: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::region_scope_tree
5: <rustc_hir_typeck::fn_ctxt::FnCtxt>::resolve_rvalue_scopes
6: rustc_hir_typeck::typeck
7: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::typeck, rustc_query_impl::plumbing::QueryCtxt>
8: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck
9: rustc_hir_typeck::typeck_item_bodies
10: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::typeck_item_bodies, rustc_query_impl::plumbing::QueryCtxt>
11: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies
12: rustc_hir_analysis::check_crate
13: rustc_interface::passes::analysis
14: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
15: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
16: <rustc_interface::queries::QueryResult<&rustc_middle::ty::context::GlobalCtxt>>::enter::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#1}::{closure#2}::{closure#4}>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.