Installing cranelift error (mac m1)

[joshuef]

i was trying to install cranelift as per: https://github.com/bjorn3/rustc_codegen_cranelift/tree/61667dedf55e3e5aa584f7ae2bd0471336b92ce9

running y.rs I get:

RUST_BACKTRACE=1 ./y.rs prepare # download and patch sysroot src and install hyperfine for benchmarking
[BUILD] y.rs
thread 'rustc' panicked at 'called `Result::unwrap()` on an `Err` value: "Provided allocation has wrong size for slot count 131072"', compiler/rustc_metadata/src/rmeta/decoder.rs:263:29
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::result::unwrap_failed
   3: rustc_metadata::rmeta::decoder::CrateMetadata::new
   4: rustc_metadata::creader::CrateLoader::maybe_resolve_crate
   5: rustc_metadata::creader::CrateLoader::maybe_resolve_crate
   6: rustc_metadata::creader::CrateLoader::process_extern_crate
   7: <rustc_resolve::build_reduced_graph::BuildReducedGraphVisitor as rustc_ast::visit::Visitor>::visit_item
   8: rustc_ast::visit::walk_item
   9: <rustc_resolve::build_reduced_graph::BuildReducedGraphVisitor as rustc_ast::visit::Visitor>::visit_item
  10: rustc_expand::expand::AstFragment::visit_with
  11: rustc_resolve::macros::<impl rustc_expand::base::ResolverExpand for rustc_resolve::Resolver>::visit_ast_fragment_with_placeholders
  12: rustc_expand::expand::MacroExpander::collect_invocations
  13: rustc_expand::expand::MacroExpander::fully_expand_fragment
  14: rustc_expand::expand::MacroExpander::expand_crate
  15: rustc_session::utils::<impl rustc_session::session::Session>::time
  16: rustc_interface::passes::configure_and_expand
  17: rustc_interface::queries::Queries::expansion
  18: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  19: rustc_span::with_source_map
  20: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose 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 1.57.0-nightly (aa8f2d432 2021-09-18) running on aarch64-apple-darwin

query stack during panic:
end of query stack```

(originally this was during the `info: installing component 'rustfmt'` step)

[Urgau]

cc #89085; there was a issue preventing all builds from happening on Mac M1 with some nighties builds and it looks like the nightly used (nightly-2021-09-19) by y.rs is in fact one of them. You could try to set the nightly to channel = "nightly-2021-09-21" in the rust-toolchain file.

cc @bjorn3

[joshuef]

tried that, but no joy:

[BUILD] y.rs
info: syncing channel updates for 'nightly-2021-09-21-aarch64-apple-darwin'
error: no release found for 'nightly-2021-09-21'

using nightly-2021-09-22 has gotten me past the prepare stage (and on to build issues, which appear to be more about the nightly used than anything compiler) eg.

error[E0599]: no function or associated item named `of_instance` found for struct `FnAbi` in the current scope
  --> src/base.rs:65:29
   |
65 |         fn_abi: Some(FnAbi::of_instance(&RevealAllLayoutCx(tcx), instance, &[])),
   |                             ^^^^^^^^^^^ function or associated item not found in `FnAbi<'_, _>

Thanks for the help @Urgau

[bjorn3]

@joshuef I will update cg_clif for the latest nightly later today.

[bjorn3]

Looks like #89092 is still in the bors queue, so I will wait with updating until it is merged to avoid accidentally messing up git subtree.

[bjorn3]

Updated in bjorn3/rustc_codegen_cranelift@9e48f99. @joshuef does it work now?

[bjorn3]

I expect this to be fixed now. If it doesn't please comment so that this issue can be re-opened.

[joshuef]

Yes, sorry, that's it sorted now 🎉 thanks so much 👍