ICE in finalize_glob_import, at rust/resolve/rust-e... | Rust-GCC/gccrs

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auto-reduced (treereduce-rust):

//@compile-flags: -frust-incomplete-and-experimental-compiler-do-not-use
#[prelude_import]
use *;

original:

#![feature(no_core)]
#![no_core]
#[prelude_import]
use *;

Version information:

833d880c3431f45dbe426f29270b6e69e2289d2c

Command:
/home/matthias/vcs/github/gccrs/gccrs-build/gcc/crab1 -frust-incomplete-and-experimental-compiler-do-not-use

Program output

crab1: error: failed to locate crate ‘core’
crab1: error: failed to locate crate ‘std’
crab1: error: unknown crate ‘core’
crab1: error: unknown crate ‘std’
crab1: internal compiler error: in finalize_glob_import, at rust/resolve/rust-early-name-resolver-2.0.cc:431
0x322b647 internal_error(char const*, ...)
	../../gcc/diagnostic-global-context.cc:787
0xc6f3c7 fancy_abort(char const*, int, char const*)
	../../gcc/diagnostics/context.cc:1813
0x916167 Rust::Resolver2_0::Early::finalize_glob_import(Rust::Resolver2_0::NameResolutionContext&, Rust::Resolver2_0::Early::ImportPair const&)
	../../gcc/rust/resolve/rust-early-name-resolver-2.0.cc:431
0xfead54 Rust::Resolver2_0::Early::visit(Rust::AST::UseDeclaration&)
	../../gcc/rust/resolve/rust-early-name-resolver-2.0.cc:513
0xe68e9f void Rust::AST::DefaultASTVisitor::visit<Rust::AST::Item>(std::unique_ptr<Rust::AST::Item, std::default_delete<Rust::AST::Item> >&)
	../../gcc/rust/ast/rust-ast-visitor.h:421
0xe68e9f Rust::AST::DefaultASTVisitor::visit(Rust::AST::Crate&)
	../../gcc/rust/ast/rust-ast-visitor.cc:39
0xfd6ccd operator()
	../../gcc/rust/resolve/rust-default-resolver.cc:34
0xfd6ccd scope_inner<Rust::Resolver2_0::CanonicalPathCtx::scope_crate<Rust::Resolver2_0::DefaultResolver::visit(Rust::AST::Crate&)::<lambda()>&>(Rust::NodeId, std::string, Rust::Resolver2_0::DefaultResolver::visit(Rust::AST::Crate&)::<lambda()>&)::<lambda()>, Rust::Resolver2_0::DefaultResolver::visit(Rust::AST::Crate&)::<lambda()>&>
	../../gcc/rust/resolve/rust-name-resolution-context.h:449
0xfd6ccd scope_crate<Rust::Resolver2_0::DefaultResolver::visit(Rust::AST::Crate&)::<lambda()>&>
	../../gcc/rust/resolve/rust-name-resolution-context.h:424
0xfd6ccd Rust::Resolver2_0::DefaultResolver::visit(Rust::AST::Crate&)
	../../gcc/rust/resolve/rust-default-resolver.cc:43
0xfe4ea3 Rust::Resolver2_0::Early::go(Rust::AST::Crate&)
	../../gcc/rust/resolve/rust-early-name-resolver-2.0.cc:71
0xea1ba8 Rust::Session::expansion(Rust::AST::Crate&, Rust::Resolver2_0::NameResolutionContext&)
	../../gcc/rust/rust-session-manager.cc:1078
0xeb05e7 Rust::Session::compile_crate(char const*)
	../../gcc/rust/rust-session-manager.cc:738
/home/matthias/vcs/github/gccrs/gccrs-build/gcc/crab1 /tmp/icemaker_global_tempdir.IMsnqRt9kaHb/rustc_testrunner_tmpdir_reporting.HsazIpKkGNCZ/mvce.rs -o/tmp/icemaker_global_tempdir.IMsnqRt9kaHb/rustc_testrunner_tmpdir_reporting.HsazIpKkGNCZ/binaryname -frust-incomplete-and-experimental-compiler-do-not-use
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

Reproduce the ICE with the reduced Rust source and the command shown in the issue. Start at finalize_glob_import in gcc/rust/resolve/rust-early-name-resolver-2.0.cc, especially lines 425-437, and trace the glob import after the core and std lookup errors. Done means this input no longer reaches an internal compiler error.

Written by the indexing model from the issue text.

ICE in finalize_glob_import, at rust/resolve/rust-early-name-resolver-2.0.cc

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