error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:5:13 | 5 | x.split("x"); | --------^^^- help: try using a char instead: `x.split('x')` | = note: `-D single-char-pattern` implied by `-D warnings` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:22:16 | 22 | x.contains("x"); | -----------^^^- help: try using a char instead: `x.contains('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:23:19 | 23 | x.starts_with("x"); | --------------^^^- help: try using a char instead: `x.starts_with('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:24:17 | 24 | x.ends_with("x"); | ------------^^^- help: try using a char instead: `x.ends_with('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:25:12 | 25 | x.find("x"); | -------^^^- help: try using a char instead: `x.find('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:26:13 | 26 | x.rfind("x"); | --------^^^- help: try using a char instead: `x.rfind('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:27:14 | 27 | x.rsplit("x"); | ---------^^^- help: try using a char instead: `x.rsplit('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:28:24 | 28 | x.split_terminator("x"); | -------------------^^^- help: try using a char instead: `x.split_terminator('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:29:25 | 29 | x.rsplit_terminator("x"); | --------------------^^^- help: try using a char instead: `x.rsplit_terminator('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:30:17 | 30 | x.splitn(0, "x"); | ------------^^^- help: try using a char instead: `x.splitn(0, 'x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:31:18 | 31 | x.rsplitn(0, "x"); | -------------^^^- help: try using a char instead: `x.rsplitn(0, 'x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:32:15 | 32 | x.matches("x"); | ----------^^^- help: try using a char instead: `x.matches('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:33:16 | 33 | x.rmatches("x"); | -----------^^^- help: try using a char instead: `x.rmatches('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:34:21 | 34 | x.match_indices("x"); | ----------------^^^- help: try using a char instead: `x.match_indices('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:35:22 | 35 | x.rmatch_indices("x"); | -----------------^^^- help: try using a char instead: `x.rmatch_indices('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:36:25 | 36 | x.trim_left_matches("x"); | --------------------^^^- help: try using a char instead: `x.trim_left_matches('x')` error: single-character string constant used as pattern --> $DIR/single_char_pattern.rs:37:26 | 37 | x.trim_right_matches("x"); | ---------------------^^^- help: try using a char instead: `x.trim_right_matches('x')`