mirror of
https://github.com/rust-lang/rust-clippy
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cc622608db
`must_use_unit` lints unit-returning functions with a `#[must_use]` attribute, suggesting to remove it. `double_must_use` lints functions with a plain `#[must_use]` attribute, but which return a type which is already `#[must_use]`, so the attribute has no benefit. `must_use_candidate` is a pedantic lint that lints functions and methods that return some non-unit type that is not already `#[must_use]` and suggests to add the annotation.
138 lines
2.8 KiB
Text
138 lines
2.8 KiB
Text
error: `x` is shadowed by itself in `&mut x`
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--> $DIR/shadow.rs:26:5
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LL | let x = &mut x;
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| ^^^^^^^^^^^^^^^
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= note: `-D clippy::shadow-same` implied by `-D warnings`
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note: previous binding is here
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--> $DIR/shadow.rs:25:13
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LL | let mut x = 1;
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| ^
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error: `x` is shadowed by itself in `{ x }`
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--> $DIR/shadow.rs:27:5
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LL | let x = { x };
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| ^^^^^^^^^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:26:9
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LL | let x = &mut x;
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| ^
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error: `x` is shadowed by itself in `(&*x)`
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--> $DIR/shadow.rs:28:5
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LL | let x = (&*x);
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| ^^^^^^^^^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:27:9
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LL | let x = { x };
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| ^
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error: `x` is shadowed by `{ *x + 1 }` which reuses the original value
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--> $DIR/shadow.rs:29:9
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LL | let x = { *x + 1 };
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| ^
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= note: `-D clippy::shadow-reuse` implied by `-D warnings`
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note: initialization happens here
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--> $DIR/shadow.rs:29:13
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LL | let x = { *x + 1 };
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| ^^^^^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:28:9
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LL | let x = (&*x);
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| ^
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error: `x` is shadowed by `id(x)` which reuses the original value
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--> $DIR/shadow.rs:30:9
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LL | let x = id(x);
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| ^
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note: initialization happens here
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--> $DIR/shadow.rs:30:13
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LL | let x = id(x);
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| ^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:29:9
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LL | let x = { *x + 1 };
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| ^
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error: `x` is shadowed by `(1, x)` which reuses the original value
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--> $DIR/shadow.rs:31:9
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LL | let x = (1, x);
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| ^
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note: initialization happens here
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--> $DIR/shadow.rs:31:13
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LL | let x = (1, x);
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| ^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:30:9
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LL | let x = id(x);
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| ^
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error: `x` is shadowed by `first(x)` which reuses the original value
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--> $DIR/shadow.rs:32:9
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LL | let x = first(x);
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| ^
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note: initialization happens here
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--> $DIR/shadow.rs:32:13
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LL | let x = first(x);
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| ^^^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:31:9
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LL | let x = (1, x);
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| ^
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error: `x` is shadowed by `y`
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--> $DIR/shadow.rs:34:9
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LL | let x = y;
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| ^
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= note: `-D clippy::shadow-unrelated` implied by `-D warnings`
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note: initialization happens here
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--> $DIR/shadow.rs:34:13
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LL | let x = y;
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| ^
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note: previous binding is here
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--> $DIR/shadow.rs:32:9
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LL | let x = first(x);
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| ^
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error: `x` shadows a previous declaration
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--> $DIR/shadow.rs:36:5
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LL | let x;
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| ^^^^^^
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note: previous binding is here
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--> $DIR/shadow.rs:34:9
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LL | let x = y;
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| ^
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error: aborting due to 9 previous errors
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