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internal compiler error: expected NodeId to be lowered already for res Local... #69401
Description
I'm seeing an internal compiler error on the following input (found by fuzz-rustc):
struct Inv<'a> {
x: &'a u8
}
pub trait Foo {
fn no_bound(b: Inv<(b)>);
}$ rustc main.rs
error[E0573]: expected type, found local variable `b`
--> main.rs:5:25
|
5 | fn no_bound(b: Inv<(b)>);
| ^ not a type
thread 'rustc' panicked at 'expected `NodeId` to be lowered already for res Local(
NodeId(21),
)', src/librustc_ast_lowering/lib.rs:662:17
note: run with `RUST_BACKTRACE=1` environment variable to display a 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/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.43.0-nightly (5d04ce67f 2020-02-13) running on x86_64-unknown-linux-gnu
error: aborting due to previous error
For more information about this error, try `rustc --explain E0573`.
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Area: The high-level intermediate representation (HIR)Category: This is a bug.Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️High priorityRelevant to the compiler team, which will review and decide on the PR/issue.ICE tracked in rust-lang/glacier.Performance or correctness regression from stable to nightly.
Activity
dwrensha commentedon Feb 23, 2020
Report from
cargo-bisect-rustc:dwrensha commentedon Feb 23, 2020
It looks like #68788 caused the regression. (The error happens at 9a4eac3 but not at c9290dc.)
cc @Centril
dwrensha commentedon Feb 25, 2020
The specific commit where the error starts happening is b2c6eeb.
pnkfelix commentedon Feb 27, 2020
triage: P-high. Removing nomination. Added regression stable-to-nightly tag.
Centril commentedon Feb 28, 2020
Fixed by #69539.
Rollup merge of rust-lang#69539 - Centril:fix-69401, r=petrochenkov
Rollup merge of rust-lang#69539 - Centril:fix-69401, r=petrochenkov
Rollup merge of rust-lang#102161 - compiler-errors:issue-102138, r=tm…
Rollup merge of rust-lang#102161 - compiler-errors:issue-102138, r=tm…