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An issue was mentioned in heroku/buildpacks-deb-packages#110 (comment). This code was added in https://github.com/heroku-buildpacks/bullet_stream/pull/43/files and uses a feature of Rust 1.86 https://www.reddit.com/r/rust/comments/1ip51qt/trait_upcasting_stabilized_in_186/ (rust-lang/rust#134367). This usage wasn't realized at the time. No lints or tooling caught it. That Any upcast is critical for the feature introduced in #43. The easiest path forward is to align the MSRV with the reality of the current code. Semver version bump guidance from this thread to make this a minor change: https://users.rust-lang.org/t/rust-version-requirement-change-as-semver-breaking-or-not/20980/2.
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```
error: variables can be used directly in the `format!` string
--> src/global.rs:678:9
|
678 | assert!(result.is_err(), "Expected panic to be caught {:?}", result);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
= note: `-D clippy::uninlined-format-args` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::uninlined_format_args)]`
help: change this to
|
678 - assert!(result.is_err(), "Expected panic to be caught {:?}", result);
678 + assert!(result.is_err(), "Expected panic to be caught {result:?}");
|
error: could not compile `bullet_stream` (lib test) due to 1 previous error
```
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More details in this PR to bullet_stream heroku-buildpacks/bullet_stream#47. And this comment reporting the issue #110 (comment). The short version is: This buildpack uses a dependency that accidentally uses a feature stabilized in Rust 1.86, but it didn't correctly update the minimum required Rust version. If it had, when #115 was merged, it would have also triggered the change that's now being made (I'm guessing this field is not linted, but I've not verified). This change corrects the problem by correctly stating the minimum Rust version so all dependencies can compile correctly.
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* Update Rust minimum version to 1.86 More details in this PR to bullet_stream heroku-buildpacks/bullet_stream#47. And this comment reporting the issue #110 (comment). The short version is: This buildpack uses a dependency that accidentally uses a feature stabilized in Rust 1.86, but it didn't correctly update the minimum required Rust version. If it had, when #115 was merged, it would have also triggered the change that's now being made (I'm guessing this field is not linted, but I've not verified). This change corrects the problem by correctly stating the minimum Rust version so all dependencies can compile correctly. * Update CHANGELOG.md Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com> Signed-off-by: Richard Schneeman <richard.schneeman+no-recruiters@gmail.com> --------- Signed-off-by: Richard Schneeman <richard.schneeman+no-recruiters@gmail.com> Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com>
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An issue was mentioned in heroku/buildpacks-deb-packages#110 (comment). This code was added in https://github.com/heroku-buildpacks/bullet_stream/pull/43/files and uses a feature of Rust 1.86 https://www.reddit.com/r/rust/comments/1ip51qt/trait_upcasting_stabilized_in_186/ (rust-lang/rust#134367).
This usage wasn't realized at the time. No lints or tooling caught it. That Any upcast is critical for the feature introduced in #43. The easiest path forward is to align the MSRV with the reality of the current code.
Semver version bump guidance from this thread to make this a minor change: https://users.rust-lang.org/t/rust-version-requirement-change-as-semver-breaking-or-not/20980/2.
GUS-W-18939940