rustc 1.67.0 internal compiler error for sparc64-unknown-netbsd target when building rust 1.67.0 natively

[he32]

Code

Sorry... No code, above trying to build the rust compiler itself,
natively, on NetBSD/sparc64 10.0_BETA.

Meta

The issue is observed while using rust 1.66.0 to build 1.67.0 for the perhaps
a little obscure target sparc64-unknown-netbsd.

Rust 1.66.0 itself did build successfully natively on this platform.

I've tried building rust 1.67.0 both with the slightly old external LLVM
(14.0.6) and with the bundled LLVM -- both fail the same way.

The issue occurs rather late in the build, at a time when the natively
built new rustc is being used to build the rust compiler itself again (if I have
understood correctly). The full build log is some 2MB in size, and should
now be downloadable from

https://filesender.sikt.no/?s=download&token=5cb5b8e1-4773-4da2-9e1c-b97daf057004

until march 16 2023.

rustc --version --verbose:

rustc 1.66.0 (69f9c33d7 2022-12-12) (built from a source tarball)
binary: rustc
commit-hash: 69f9c33d71c871fc16ac445211281c6e7a340943
commit-date: 2022-12-12
host: sparc64-unknown-netbsd
release: 1.66.0
LLVM version: 14.0.6

(that's for the already installed 1.66.0 version.)

Error output

     Running `/usr/pkgsrc/wip/rust/work/rustc-1.67.0-src/build/bootstrap/debug/rustc --crate-name typenum --edition=2018 /usr/pkgsrc/wip/rust/work/rustc-1.67.0-src/vendor/typenum/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=0 -Zunstable-options --check-cfg 'values(feature, "const-generics", "force_unix_path_separator", "i128", "no_std", "scale-info", "scale_info", "strict")' --check-cfg 'names()' --check-cfg 'values()' -C metadata=5e39c60fcb634ae1 -C extra-filename=-5e39c60fcb634ae1 --out-dir /usr/pkgsrc/wip/rust/work/rustc-1.67.0-src/build/sparc64-unknown-netbsd/stage2-tools/sparc64-unknown-netbsd/release/deps --target sparc64-unknown-netbsd -L dependency=/usr/pkgsrc/wip/rust/work/rustc-1.67.0-src/build/sparc64-unknown-netbsd/stage2-tools/sparc64-unknown-netbsd/release/deps -L dependency=/usr/pkgsrc/wip/rust/work/rustc-1.67.0-src/build/sparc64-unknown-netbsd/stage2-tools/release/deps --cap-lints allow -Csymbol-mangling-version=v0 -Zunstable-options '--check-cfg=values(bootstrap)' '--check-cfg=values(parallel_compiler)' '--check-cfg=values(release)' '--check-cfg=values(no_btreemap_remove_entry)' '--check-cfg=values(crossbeam_loom)' '--check-cfg=values(span_locations)' '--check-cfg=values(rustix_use_libc)' -Zmacro-backtrace -Clink-args=-Wl,-z,origin -Clink-args=-Wl,-rpath,/usr/pkg/lib -Zunstable-options -Csplit-debuginfo=off -Z binary-dep-depinfo`
thread 'rustc' panicked at 'expected expression', compiler/rustc_expand/src/base.rs:176:18
stack backtrace:
   0:         0x4b4e9a84 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha98ec3ab0ebc45c6
   1:         0x4b588e1c - core::fmt::write::he50a8ed9ed8f8a70
   2:         0x4b4a6820 - std::io::Write::write_fmt::h2b7f3b980e9cb2b9
   3:         0x4b4e9874 - std::sys_common::backtrace::print::h80ed1a24eac33214
   4:         0x4b4d59e8 - std::panicking::default_hook::{{closure}}::h4bfe009cbf4cdf18
   5:         0x4b4d5618 - std::panicking::default_hook::hd365f50bc82cde54
   6:         0x4b4cfe34 - core::ops::function::Fn::call::hdc74585b697a9aef
   7:         0x41664e80 - rustc_driver[b3449c293f48fb29]::DEFAULT_HOOK::{closure#0}::{closure#0}
   8:         0x4b4d63e4 - std::panicking::rust_panic_with_hook::hc39cbbdde74271b9
   9:         0x4b4e9e70 - std::panicking::begin_panic_handler::{{closure}}::h03db108ee89381c9
  10:         0x4b4e9bf0 - std::sys_common::backtrace::__rust_end_short_backtrace::hcb185c8d6ea6926e
  11:         0x4b4d5bac - rust_begin_unwind
  12:         0x4b4859b8 - core::panicking::panic_fmt::hada63450f332ba58
  13:         0x478e02f4 - <rustc_expand[c5a7c97120d81084]::base::Annotatable>::expect_expr
  14:         0x478c0004 - <rustc_expand[c5a7c97120d81084]::expand::AstFragmentKind>::expect_from_annotatables::<alloc[20875b84b34d27cd]::vec::Vec<rustc_expand[c5a7c97120d81084]::base::Annotatable>>
  15:         0x478c32a0 - <rustc_expand[c5a7c97120d81084]::expand::MacroExpander>::fully_expand_fragment
  16:         0x478c0c3c - <rustc_expand[c5a7c97120d81084]::expand::MacroExpander>::expand_crate
  17:         0x417c54bc - <rustc_session[1e08ea05f674addc]::session::Session>::time::<core[2c0009376117aa86]::result::Result<rustc_ast[44bc1b3735e615d3]::ast::Crate, rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_interface[813d6c11d2970333]::passes::configure_and_expand::{closure#1}>
  18:         0x417bc7d8 - rustc_interface[813d6c11d2970333]::passes::configure_and_expand
  19:         0x417f59b8 - <rustc_interface[813d6c11d2970333]::queries::Queries>::expansion
  20:         0x4162b740 - rustc_span[b087444988390df3]::with_source_map::<core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_interface[813d6c11d2970333]::interface::run_compiler<core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_driver[b3449c293f48fb29]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  21:         0x41616860 - <scoped_tls[b73c11231e9b3dad]::ScopedKey<rustc_span[b087444988390df3]::SessionGlobals>>::set::<rustc_interface[813d6c11d2970333]::interface::run_compiler<core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_driver[b3449c293f48fb29]::run_compiler::{closure#1}>::{closure#0}, core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>>
  22:         0x415cada0 - std[4c094d4434749a4d]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[813d6c11d2970333]::util::run_in_thread_pool_with_globals<rustc_interface[813d6c11d2970333]::interface::run_compiler<core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_driver[b3449c293f48fb29]::run_compiler::{closure#1}>::{closure#0}, core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>>
  23:         0x415a0ad8 - <<std[4c094d4434749a4d]::thread::Builder>::spawn_unchecked_<rustc_interface[813d6c11d2970333]::util::run_in_thread_pool_with_globals<rustc_interface[813d6c11d2970333]::interface::run_compiler<core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>, rustc_driver[b3449c293f48fb29]::run_compiler::{closure#1}>::{closure#0}, core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[2c0009376117aa86]::result::Result<(), rustc_errors[1860347428201aa0]::ErrorGuaranteed>>::{closure#1} as core[2c0009376117aa86]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  24:         0x4b49ea3c - std::sys::unix::thread::Thread::new::thread_start::h46069fca6121842a
  25:         0x4bf0fcc8 - pthread__create_tramp
                               at /usr/src/lib/libpthread/pthread.c:592:12
  26:         0x4b8666b8 - <unknown>

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 1.67.0 (fc594f156 2023-01-24) (built from a source tarball) running on sparc64-unknown-netbsd

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C debuginfo=0 -Z unstable-options -C symbol-mangling-version=v0 -Z unstable-options -Z macro-backtrace -C link-args=-Wl,-z,origin -C link-args=-Wl,-rpath,/usr/pkg/lib -Z unstable-options -C split-debuginfo=off -Z binary-dep-depinfo -Z tls-model=initial-exec

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

query stack during panic:
end of query stack

Did not run successfully: exit status: 101
error: could not compile `typenum`

Backtrace

Backtrace already provided above.

[he32]

Just FYI, the native build of 1.67.1 on NetBSD/sparc64 fails the same way.

[workingjubilee]

In order to assist diagnosis later (if this is actually secretly architecture neutral it may be solved sooner, but if it is arch-specific, it may take a while for a sparc64 expert to come by: they aren't common, lately) I have put the log into a gist: https://gist.github.com/workingjubilee/428fdf2392ec7723b25c1b29f9f573ce

Don't worry, it's only 124KiB gzipped.

[psumbera]

@he32 can you try following patch (against 1.67.1)?

https://github.com/psumbera/solaris-userland/blob/04ebfac35bd38b6583e737f8665b0c90b7c19fbd/components/rust/rustc/patches/Issue108117.patch

[he32]

Yep, will try that. It'll take a while -- my sparc64 hosts are not the speediest variants...

[he32]

Good news: the native build on NetBSD/sparc64 10.0_BETA succeeded after applying the referenced patch above, pointed to by @psumbera

[psumbera]

Thanks for confirming this. My testing reveals that for version 1.68.0 there is no need for this patch.

[he32]

OK, good to know, since upgrading to 1.68.0 is next on my TODO list after applying this patch to our pkgsrc-wip repository.

[jyn514]

Closing as a duplicate of #108426 (comment); 1.68 has already been released and we don't support versions older than the latest stable.