error: unnecessary `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:17:13
   |
17 | /             unsafe {
18 | |                 v.set_len(24);
19 | |                 |w: &mut Vec<u32>| { unsafe {
20 | |                     w.set_len(32);
21 | |                 } };
22 | |             }
   | |_____________^ unnecessary `unsafe` block
   |
note: lint level defined here
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:11:8
   |
11 | #[deny(unused_unsafe)]
   |        ^^^^^^^^^^^^^
note: because it's nested under this `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:15:5
   |
15 | /     unsafe {
16 | |         let f = |v: &mut Vec<_>| {
17 | |             unsafe {
18 | |                 v.set_len(24);
...  |
29 | |         f(&mut v);
30 | |     }
   | |_____^

error: unnecessary `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:19:38
   |
19 |                   |w: &mut Vec<u32>| { unsafe {
   |  ______________________________________^
20 | |                     w.set_len(32);
21 | |                 } };
   | |_________________^ unnecessary `unsafe` block
   |
note: because it's nested under this `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:17:13
   |
17 | /             unsafe {
18 | |                 v.set_len(24);
19 | |                 |w: &mut Vec<u32>| { unsafe {
20 | |                     w.set_len(32);
21 | |                 } };
22 | |             }
   | |_____________^

error: unnecessary `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:23:34
   |
23 |               |x: &mut Vec<u32>| { unsafe {
   |  __________________________________^
24 | |                 x.set_len(40);
25 | |             } };
   | |_____________^ unnecessary `unsafe` block
   |
note: because it's nested under this `unsafe` block
  --> $DIR/issue-45107-unnecessary-unsafe-in-closure.rs:15:5
   |
15 | /     unsafe {
16 | |         let f = |v: &mut Vec<_>| {
17 | |             unsafe {
18 | |                 v.set_len(24);
...  |
29 | |         f(&mut v);
30 | |     }
   | |_____^

error: aborting due to 6 previous errors