error: Consider removing unnecessary double parentheses --> double_parens.rs:16:5 | 16 | ((0)) | ^^^^^ | = note: `-D double-parens` implied by `-D warnings` error: Consider removing unnecessary double parentheses --> double_parens.rs:20:14 | 20 | dummy_fn((0)); | ^^^ | = note: `-D double-parens` implied by `-D warnings` error: Consider removing unnecessary double parentheses --> double_parens.rs:24:20 | 24 | x.dummy_method((0)); | ^^^ | = note: `-D double-parens` implied by `-D warnings` error: Consider removing unnecessary double parentheses --> double_parens.rs:28:5 | 28 | ((1, 2)) | ^^^^^^^^ | = note: `-D double-parens` implied by `-D warnings` error: Consider removing unnecessary double parentheses --> double_parens.rs:32:5 | 32 | (()) | ^^^^ | = note: `-D double-parens` implied by `-D warnings` error: aborting due to previous error(s) To learn more, run the command again with --verbose.