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Unmatched brace in a format string crashes the compiler #91556

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C-bugI-ICET-compiler

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pub fn test(i: i32) -> String {
  format!(concat!("{0}𝖳𝖾𝗌𝗍{"), i)
}

Playground link: https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=8b3a4c8413cd9d296706c9da0ac6e0c0

VorfeedCanal
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C-bugCategory: This is a bug.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
on Dec 5, 2021
compiler-errors commented on Dec 5, 2021
compiler-errors
on Dec 5, 2021
Contributor
I'd love to take a look at this. Seems to be ICEing in code that displays the diagnostic to fixup the actual compiler error here.

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rustbot
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compiler-errors
on Dec 5, 2021
matthiaskrgr
added 4 commits that reference this issue on Dec 9, 2021
Rollup merge of rust-lang#91575 - compiler-errors:issue-91556, r=cjgi…
999bb90
Rollup merge of rust-lang#91575 - compiler-errors:issue-91556, r=cjgi…
d2d0b0b
Rollup merge of rust-lang#91575 - compiler-errors:issue-91556, r=cjgi…
6ec2bcb
Rollup merge of rust-lang#91575 - compiler-errors:issue-91556, r=cjgi…
6cfe9af
bors
closed this as completedin 6cfe9af on Dec 11, 2021

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