error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:33:5 | 33 | x.field.map(do_nothing); | ^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(x_field) = x.field { do_nothing(...) }` | = note: `-D option-map-unit-fn` implied by `-D warnings` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:35:5 | 35 | x.field.map(do_nothing); | ^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(x_field) = x.field { do_nothing(...) }` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:37:5 | 37 | x.field.map(diverge); | ^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(x_field) = x.field { diverge(...) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:43:5 | 43 | x.field.map(|value| x.do_option_nothing(value + captured)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { x.do_option_nothing(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:45:5 | 45 | x.field.map(|value| { x.do_option_plus_one(value + captured); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { x.do_option_plus_one(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:48:5 | 48 | x.field.map(|value| do_nothing(value + captured)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:50:5 | 50 | x.field.map(|value| { do_nothing(value + captured) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:52:5 | 52 | x.field.map(|value| { do_nothing(value + captured); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:54:5 | 54 | x.field.map(|value| { { do_nothing(value + captured); } }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { do_nothing(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:57:5 | 57 | x.field.map(|value| diverge(value + captured)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { diverge(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:59:5 | 59 | x.field.map(|value| { diverge(value + captured) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { diverge(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:61:5 | 61 | x.field.map(|value| { diverge(value + captured); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { diverge(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:63:5 | 63 | x.field.map(|value| { { diverge(value + captured); } }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { diverge(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:68:5 | 68 | x.field.map(|value| { let y = plus_one(value + captured); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { let y = plus_one(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:70:5 | 70 | x.field.map(|value| { plus_one(value + captured); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { plus_one(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:72:5 | 72 | x.field.map(|value| { { plus_one(value + captured); } }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { plus_one(value + captured); }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:75:5 | 75 | x.field.map(|ref value| { do_nothing(value + captured) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(ref value) = x.field { do_nothing(value + captured) }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:78:5 | 78 | x.field.map(|value| { do_nothing(value); do_nothing(value) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { ... }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:80:5 | 80 | x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { ... }` error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:84:5 | 84 | x.field.map(|value| { | _____^ | |_____| | || 85 | || do_nothing(value); 86 | || do_nothing(value) 87 | || }); | ||______^- help: try this: `if let Some(value) = x.field { ... }` | |_______| | error: called `map(f)` on an Option value where `f` is a unit closure --> $DIR/map_unit_fn.rs:88:5 | 88 | x.field.map(|value| { do_nothing(value); do_nothing(value); }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(value) = x.field { ... }` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:91:5 | 91 | Some(42).map(diverge); | ^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(_) = Some(42) { diverge(...) }` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:92:5 | 92 | "12".parse::().ok().map(diverge); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(_) = "12".parse::().ok() { diverge(...) }` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:93:5 | 93 | Some(plus_one(1)).map(do_nothing); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(_) = Some(plus_one(1)) { do_nothing(...) }` error: called `map(f)` on an Option value where `f` is a unit function --> $DIR/map_unit_fn.rs:97:5 | 97 | y.map(do_nothing); | ^^^^^^^^^^^^^^^^^- | | | help: try this: `if let Some(_y) = y { do_nothing(...) }` error: aborting due to 25 previous errors