error: you should use the `starts_with` method --> $DIR/starts_ends_with.rs:7:5 | 7 | "".chars().next() == Some(' '); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".starts_with(' ')` | = note: `-D chars-next-cmp` implied by `-D warnings` error: you should use the `starts_with` method --> $DIR/starts_ends_with.rs:8:5 | 8 | Some(' ') != "".chars().next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".starts_with(' ')` error: you should use the `starts_with` method --> $DIR/starts_ends_with.rs:13:8 | 13 | if s.chars().next().unwrap() == 'f' { // s.starts_with('f') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.starts_with('f')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:16:8 | 16 | if s.chars().next_back().unwrap() == 'o' { // s.ends_with('o') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')` | = note: `-D chars-last-cmp` implied by `-D warnings` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:19:8 | 19 | if s.chars().last().unwrap() == 'o' { // s.ends_with('o') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `s.ends_with('o')` error: you should use the `starts_with` method --> $DIR/starts_ends_with.rs:22:8 | 22 | if s.chars().next().unwrap() != 'f' { // !s.starts_with('f') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.starts_with('f')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:25:8 | 25 | if s.chars().next_back().unwrap() != 'o' { // !s.ends_with('o') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:28:8 | 28 | if s.chars().last().unwrap() != 'o' { // !s.ends_with('o') | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!s.ends_with('o')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:35:5 | 35 | "".chars().last() == Some(' '); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:36:5 | 36 | Some(' ') != "".chars().last(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:37:5 | 37 | "".chars().next_back() == Some(' '); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `"".ends_with(' ')` error: you should use the `ends_with` method --> $DIR/starts_ends_with.rs:38:5 | 38 | Some(' ') != "".chars().next_back(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: like this: `!"".ends_with(' ')` error: aborting due to 12 previous errors