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Motivation
Rust beta now contains a new lint (rust-lang/rust#120393) which produces a bunch of compilation warnings in the CI. They all come from
displaydoc
(https://github.com/yaahc/displaydoc) which has an open PR (yaahc/displaydoc#47) containing a trivial fix for the issue but hasn't been merged in more than two months.Solution
displaydoc
.fmt::Display
manually for types that used to usedisplaydoc
.Tests
The solution doesn't need tests.
PR Author's Checklist
The PR provides a CHANGELOG summary.The solution is tested.PR Reviewer's Checklist