not-copy-closure

Kivooeo · Kivooeo · commit ad754e9c9e1b · 2025-07-01T00:43:31.000+05:00
diff --git a/tests/ui/closures/closure-no-copy-mut-env.rs b/tests/ui/closures/closure-no-copy-mut-env.rs
@@ -1,4 +1,4 @@
-// Check that closures do not implement `Copy` if their environment is not `Copy`.
+//! Closures do not implement `Copy` when they capture mutable references.
 
 fn main() {
     let mut a = 5;
diff --git a/tests/ui/closures/closure-no-copy-mut-env.stderr b/tests/ui/closures/closure-no-copy-mut-env.stderr
@@ -1,13 +1,13 @@
 error[E0382]: use of moved value: `hello`
-  --> $DIR/not-copy-closure.rs:10:13
+  --> $DIR/closure-no-copy-mut-env.rs:10:13
    |
 LL |     let b = hello;
    |             ----- value moved here
 LL |     let c = hello;
    |             ^^^^^ value used here after move
    |
 note: closure cannot be moved more than once as it is not `Copy` due to moving the variable `a` out of its environment
-  --> $DIR/not-copy-closure.rs:6:9
+  --> $DIR/closure-no-copy-mut-env.rs:6:9
    |
 LL |         a += 1;
    |         ^

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		-// Check that closures do not implement `Copy` if their environment is not `Copy`.
	`1`	+//! Closures do not implement `Copy` when they capture mutable references.
`2`	`2`
`3`	`3`	`fn main() {`
`4`	`4`	`let mut a = 5;`
Original file line number	Diff line number	Diff line change
`@@ -1,13 +1,13 @@`
`1`	`1`	error[E0382]: use of moved value: `hello`
`2`		`- --> $DIR/not-copy-closure.rs:10:13`
	`2`	`+ --> $DIR/closure-no-copy-mut-env.rs:10:13`
`3`	`3`	`\|`
`4`	`4`	`LL \| let b = hello;`
`5`	`5`	`\| ----- value moved here`
`6`	`6`	`LL \| let c = hello;`
`7`	`7`	`\| ^^^^^ value used here after move`
`8`	`8`	`\|`
`9`	`9`	note: closure cannot be moved more than once as it is not `Copy` due to moving the variable `a` out of its environment
`10`		`- --> $DIR/not-copy-closure.rs:6:9`
	`10`	`+ --> $DIR/closure-no-copy-mut-env.rs:6:9`
`11`	`11`	`\|`
`12`	`12`	`LL \| a += 1;`
`13`	`13`	`\| ^`