File: closure-arg-type-mismatch-issue-45727.current.stderr

package info (click to toggle)
rustc 1.87.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 925,564 kB
  • sloc: xml: 158,127; python: 36,039; javascript: 19,761; sh: 19,737; cpp: 18,981; ansic: 13,133; asm: 4,376; makefile: 710; perl: 29; lisp: 28; ruby: 19; sql: 11
file content (38 lines) | stat: -rw-r--r-- 1,582 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
error[E0631]: type mismatch in closure arguments
  --> $DIR/closure-arg-type-mismatch-issue-45727.rs:6:24
   |
LL |     let _ = (-10..=10).find(|x: i32| x.signum() == 0);
   |                        ^^^^ -------- found signature defined here
   |                        |
   |                        expected due to this
   |
   = note: expected closure signature `for<'a> fn(&'a {integer}) -> _`
              found closure signature `fn(i32) -> _`
note: required by a bound in `find`
  --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
help: consider adjusting the signature so it borrows its argument
   |
LL |     let _ = (-10..=10).find(|x: &i32| x.signum() == 0);
   |                                 +

error[E0631]: type mismatch in closure arguments
  --> $DIR/closure-arg-type-mismatch-issue-45727.rs:9:24
   |
LL |     let _ = (-10..=10).find(|x: &&&i32| x.signum() == 0);
   |                        ^^^^ ----------- found signature defined here
   |                        |
   |                        expected due to this
   |
   = note: expected closure signature `for<'a> fn(&'a {integer}) -> _`
              found closure signature `fn(&&&i32) -> _`
note: required by a bound in `find`
  --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL
help: consider adjusting the signature so it does not borrow its argument
   |
LL -     let _ = (-10..=10).find(|x: &&&i32| x.signum() == 0);
LL +     let _ = (-10..=10).find(|x: &i32| x.signum() == 0);
   |

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0631`.