Fix master unhappiness

[antifuchs]

• [x] clippy
• [x] cargo-deny
• [ ] the annoying cargo-clippy action (use https://github.com/giraffate/clippy-action)

[antifuchs]

bors merge

[bors[bot]]

Build failed:

• cargo_clippy

[antifuchs]

bors merge

[bors[bot]]

Build succeeded!

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• all_tests
• cargo_clippy
• cargo_deny
• rustfmt