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Jul 27, 2017 at 20:37
Having wasted half an hour of my life once due to ; vs : (it was 1 pixel!), I love that rustc is especially helpful:
Point at `:` when using it instead of `;` by estebank · Pull Request #43096 · rust-lang/rust
Point at `:` when using it instead of `;` by estebank · Pull Request #43096 · rust-lang/rust
When triggering type ascription in such a way that we can infer a statement end was intended, add a suggestion for the change. Always point out the reason for the expectation of a type is due to ty...

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Jan 27, 2023 at 16:57
It's a tragedy that ; and : are often on the same key on the keyboard, are often both legal syntax, and are so visually similar. I wonder how much programmer time has been wasted.
May 18, 2014 at 18:18
A little redundancy in syntax is good. I wasted several minutes on a bug that boiled down to writing `{x, y}` instead of `{x: y}` in Python.