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rust/tests/ui/rustc-env/README.md
Jubilee Young 9985821b2f defrost RUST_MIN_STACK=ice rustc hello.rs 
An earlier commit included the change for a suggestion here.
Unfortunately, it also used unwrap instead of dying properly.
Roll out the ~~rice paper~~ EarlyDiagCtxt before we do anything that
might leave a mess.
2024-05-19 18:28:14 -07:00

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Some environment variables affect rustc's behavior not because they are major compiler interfaces but rather because rustc is, ultimately, a Rust program, with debug logging, stack control, etc.

Prefer to group tests that use environment variables to control something about rustc's core UX, like "can we parse this number of parens if we raise RUST_MIN_STACK?" with related code for that compiler feature.