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Weird async/await error message around mutablility #51932

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cramertj opened this issue Jun 30, 2018 · 1 comment
Closed

Weird async/await error message around mutablility #51932

cramertj opened this issue Jun 30, 2018 · 1 comment
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A-async-await Area: Async & Await A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@cramertj
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Attempting to mutate an argument to an async fn that was not marked mut results in this error message:
cannot borrow immutable captured outer variable in an `FnOnce` closure `sender` as mutable

This is obviously subpar 😆
@cramertj cramertj self-assigned this Jun 30, 2018
@stokhos stokhos added A-diagnostics Area: Messages for errors, warnings, and lints A-borrow-checker Area: The borrow checker labels Jun 30, 2018
@JohnTitor JohnTitor added A-async-await Area: Async & Await C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Oct 2, 2019
@nikomatsakis nikomatsakis added the AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. label Oct 8, 2019
@rylev
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rylev commented Jun 11, 2021

This no longer seems to be the case. Please feel free to open with an reproducible piece of code if it's still an issue. 😊

@rylev rylev closed this as completed Jun 11, 2021
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A-async-await Area: Async & Await A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-enhancement Category: An issue proposing an enhancement or a PR with one. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@nikomatsakis @rylev @cramertj @stokhos @JohnTitor