rust/src/test/ui/issues/issue-40510-1.migrate.stderr

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warning: captured variable cannot escape `FnMut` closure body
--> $DIR/issue-40510-1.rs:11:9
2018-07-15 21:11:54 +00:00
|
LL | || {
| - inferred to be a `FnMut` closure
LL | &mut x
| ^^^^^^ returns a reference to a captured variable which escapes the closure body
|
= note: `FnMut` closures only have access to their captured variables while they are executing...
= note: ...therefore, they cannot allow references to captured variables to escape
= warning: this error has been downgraded to a warning for backwards compatibility with previous releases
= warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
2019-05-14 00:09:30 +00:00
= note: for more information, try `rustc --explain E0729`
error: compilation successful
--> $DIR/issue-40510-1.rs:20:1
|
LL | fn main() {}
| ^^^^^^^^^^^^
error: aborting due to previous error