ctutils: add missing #[must_use] attributes#1382
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I ran into a bug `#[must_use]` would've caught and noticed we could use it all over the place. Fortunately, it can be detected and applied automatically with clippy.
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I ran into a bug
#[must_use]would've caught and noticed we could use it all over the place. Fortunately, it can be detected and applied automatically with clippy.