error: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. --> $DIR/ptr_arg.rs:6:14 | 6 | fn do_vec(x: &Vec) { | ^^^^^^^^^ help: change this to: `&[i64]` | = note: `-D ptr-arg` implied by `-D warnings` error: writing `&String` instead of `&str` involves a new object where a slice will do. --> $DIR/ptr_arg.rs:14:14 | 14 | fn do_str(x: &String) { | ^^^^^^^ help: change this to: `&str` error: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. --> $DIR/ptr_arg.rs:27:18 | 27 | fn do_vec(x: &Vec); | ^^^^^^^^^ help: change this to: `&[i64]` error: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices. --> $DIR/ptr_arg.rs:40:14 | 40 | fn cloned(x: &Vec) -> Vec { | ^^^^^^^^ help: change this to | 40 | fn cloned(x: &[u8]) -> Vec { | ^^^^^ help: change `x.clone()` to | 41 | let e = x.to_owned(); | ^^^^^^^^^^^^ help: change `x.clone()` to | 46 | x.to_owned() | error: writing `&String` instead of `&str` involves a new object where a slice will do. --> $DIR/ptr_arg.rs:49:18 | 49 | fn str_cloned(x: &String) -> String { | ^^^^^^^ help: change this to | 49 | fn str_cloned(x: &str) -> String { | ^^^^ help: change `x.clone()` to | 50 | let a = x.to_string(); | ^^^^^^^^^^^^^ help: change `x.clone()` to | 51 | let b = x.to_string(); | ^^^^^^^^^^^^^ help: change `x.clone()` to | 56 | x.to_string() | error: writing `&String` instead of `&str` involves a new object where a slice will do. --> $DIR/ptr_arg.rs:59:44 | 59 | fn false_positive_capacity(x: &Vec, y: &String) { | ^^^^^^^ help: change this to | 59 | fn false_positive_capacity(x: &Vec, y: &str) { | ^^^^ help: change `y.clone()` to | 61 | let b = y.to_string(); | ^^^^^^^^^^^^^ help: change `y.as_str()` to | 62 | let c = y; | ^ error: aborting due to 6 previous errors