30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
error[E0596]: cannot borrow `y` as mutable, as it is not declared as mutable
|
|
--> $DIR/ex3-both-anon-regions-using-trait-objects.rs:2:3
|
|
|
|
|
LL | y.push(z);
|
|
| ^ cannot borrow as mutable
|
|
|
|
|
help: consider changing this to be mutable
|
|
|
|
|
LL | fn foo(x:Box<dyn Fn(&u8, &u8)> , mut y: Vec<&u8>, z: &u8) {
|
|
| +++
|
|
|
|
error: lifetime may not live long enough
|
|
--> $DIR/ex3-both-anon-regions-using-trait-objects.rs:2:3
|
|
|
|
|
LL | fn foo(x:Box<dyn Fn(&u8, &u8)> , y: Vec<&u8>, z: &u8) {
|
|
| - - let's call the lifetime of this reference `'1`
|
|
| |
|
|
| let's call the lifetime of this reference `'2`
|
|
LL | y.push(z);
|
|
| ^^^^^^^^^ argument requires that `'1` must outlive `'2`
|
|
|
|
|
help: consider introducing a named lifetime parameter
|
|
|
|
|
LL | fn foo<'a>(x:Box<dyn Fn(&u8, &u8)> , y: Vec<&'a u8>, z: &'a u8) {
|
|
| ++++ ++ ++
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0596`.
|