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error: lifetime may not live long enough
--> $DIR/suggest-lt-on-ty-alias-w-generics.rs:4:5
|
LL | fn test(x: &i32) -> Lazy<i32> {
| - let's call the lifetime of this reference `'1`
LL | / Box::new(|| {
LL | |
LL | |
LL | | *x
LL | | })
| |______^ returning this value requires that `'1` must outlive `'static`
|
help: to declare that the trait object captures data from argument `x`, you can add a lifetime parameter `'a` in the type alias
|
LL - type Lazy<T> = Box<dyn Fn() -> T + 'static>;
LL + type Lazy<'a, T> = Box<dyn Fn() -> T + 'a>;
|
error[E0373]: closure may outlive the current function, but it borrows `x`, which is owned by the current function
--> $DIR/suggest-lt-on-ty-alias-w-generics.rs:4:14
|
LL | Box::new(|| {
| ^^ may outlive borrowed value `x`
...
LL | *x
| -- `x` is borrowed here
|
note: closure is returned here
--> $DIR/suggest-lt-on-ty-alias-w-generics.rs:4:5
|
LL | / Box::new(|| {
LL | |
LL | |
LL | | *x
LL | | })
| |______^
help: to force the closure to take ownership of `x` (and any other referenced variables), use the `move` keyword
|
LL | Box::new(move || {
| ++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0373`.
|
