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Incorrect lifetimes in impl Trait types in bindings are not currently supported error in latest nightly #69238

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olegnn opened this issue Feb 17, 2020 · 2 comments
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Incorrect lifetimes in impl Trait types in bindings are not currently supported error in latest nightly #69238

olegnn opened this issue Feb 17, 2020 · 2 comments
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A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. F-impl_trait_in_bindings `#![feature(impl_trait_in_bindings)]` requires-nightly This issue requires a nightly compiler in some way.

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@olegnn
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olegnn commented Feb 17, 2020

rustc 1.43.0-nightly (5e7af46 2020-02-16)

futures-rs tests (https://travis-ci.com/rust-lang/futures-rs/jobs/288109824#L1073) now fail on nightly with

error: lifetimes in impl Trait types in bindings are not currently supported
  --> src/compat/compat01as03.rs:390:13
   |
12 | let reader: impl tokio_io::AsyncRead = std::io::Cursor::new(input);
   |             ^^^^^^^^^^^^^^^^^^^^^^^^

However it worked before and there's no lifetimes in binding.
@olegnn olegnn added the C-bug Category: This is a bug. label Feb 17, 2020
@olegnn olegnn changed the title lifetimes in impl Trait types in bindings are not currently supported in latest nightly Incorrect lifetimes in impl Trait types in bindings are not currently supported error in latest nightly Feb 17, 2020
@Centril Centril added F-impl_trait_in_bindings `#![feature(impl_trait_in_bindings)]` requires-nightly This issue requires a nightly compiler in some way. A-lifetimes Area: Lifetimes / regions labels Feb 17, 2020
@Centril
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Centril commented Feb 17, 2020

cc @matthewjasper

@matthewjasper
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The lifetime being referred to is in the concrete type. This is working as currently intended.

olegnn referenced this issue in olegnn/futures-rs Feb 18, 2020
@olegnn
Fixed unrelated test (https://github.com/rust-lang/rust/issues/69238…
c2641d4 
…\#issuecomment-587181189`)
@olegnn olegnn closed this as completed Feb 18, 2020
exrook referenced this issue in exrook/futures-rs Apr 4, 2021
@olegnn
Fixed unrelated test (https://github.com/rust-lang/rust/issues/69238…
fb40eed 
…\#issuecomment-587181189`)
exrook referenced this issue in exrook/futures-rs Apr 5, 2021
@olegnn
Fixed unrelated test (https://github.com/rust-lang/rust/issues/69238…
5ab5db2 
…\#issuecomment-587181189`)
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Labels
A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. F-impl_trait_in_bindings `#![feature(impl_trait_in_bindings)]` requires-nightly This issue requires a nightly compiler in some way.
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@Centril @olegnn @matthewjasper