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error[E0106]: missing lifetime specifier
--> $DIR/issue-30255.rs:9:24
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LL | fn f(a: &S, b: i32) -> &i32 {
| -- ^ expected named lifetime parameter
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= help: this function's return type contains a borrowed value, but the signature does not say which one of `a`'s 2 lifetimes it is borrowed from
help: consider introducing a named lifetime parameter
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LL | fn f<'a>(a: &'a S<'a>, b: i32) -> &'a i32 {
| ++++ ++ ++++ ++
error[E0106]: missing lifetime specifier
--> $DIR/issue-30255.rs:14:34
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LL | fn g(a: &S, b: bool, c: &i32) -> &i32 {
| -- ---- ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from one of `a`'s 2 lifetimes or `c`
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(a: &'a S<'a>, b: bool, c: &'a i32) -> &'a i32 {
| ++++ ++ ++++ ++ ++
error[E0106]: missing lifetime specifier
--> $DIR/issue-30255.rs:19:44
|
LL | fn h(a: &bool, b: bool, c: &S, d: &i32) -> &i32 {
| ----- -- ---- ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `a`, one of `c`'s 2 lifetimes, or `d`
help: consider introducing a named lifetime parameter
|
LL | fn h<'a>(a: &'a bool, b: bool, c: &'a S<'a>, d: &'a i32) -> &'a i32 {
| ++++ ++ ++ ++++ ++ ++
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0106`.
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