ICE: called `Option::unwrap()` on a `None` value', compiler\rustc_hir\src\definitions.rs:452:14

[Crazytieguy]

Code

https://github.com/Crazytieguy/bevy_chess/tree/64592ffea7a46662b44588253eee050b8cdf6f6d

Meta

rustc --version --verbose:

rustc 1.58.0-nightly (db062de72 2021-11-01)
binary: rustc
commit-hash: db062de72b0a064f45b6f86894cbdc7c0ec68844
commit-date: 2021-11-01
host: x86_64-pc-windows-msvc
release: 1.58.0-nightly
LLVM version: 13.0.0

Error output

error: internal compiler error: unexpected panic

note: compiler flags: -Z share-generics=y -C embed-bitcode=no -C debuginfo=1 -C linker=rust-lld.exe -C incremental --crate-type bin

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

Backtrace

thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', /rustc/db062de72b0a064f45b6f86894cbdc7c0ec68844\compiler\rustc_hir\src\definitions.rs:452:14

[jyn514]

@Crazytieguy can you still reproduce the crash if you remove -Z share-generics?

[Crazytieguy]

@jyn514 If I remove -Z share-generics it compiles :)

[jyn514]

cc @davidtwco

[davidtwco]

cc @davidtwco

-Zshare-generics isn’t polymorphization. It’s possible that polymorphization’s changes (despite being disabled) are related to this, but I don’t see any reason to suspect so from this issue.

[jyn514]

Oh oops, sorry. Never mind then.