src/tools/clippy/tests/ui/mut_from_ref.stderr

   1 error: mutable borrow from immutable input(s)
   2   --> $DIR/mut_from_ref.rs:7:39
   3    |
   4 LL |     fn this_wont_hurt_a_bit(&self) -> &mut Foo {
   5    |                                       ^^^^^^^^
   6    |
   7    = note: `-D clippy::mut-from-ref` implied by `-D warnings`
   8 note: immutable borrow here
   9   --> $DIR/mut_from_ref.rs:7:29
  10    |
  11 LL |     fn this_wont_hurt_a_bit(&self) -> &mut Foo {
  12    |                             ^^^^^
  13
  14 error: mutable borrow from immutable input(s)
  15   --> $DIR/mut_from_ref.rs:13:25
  16    |
  17 LL |     fn ouch(x: &Foo) -> &mut Foo;
  18    |                         ^^^^^^^^
  19    |
  20 note: immutable borrow here
  21   --> $DIR/mut_from_ref.rs:13:16
  22    |
  23 LL |     fn ouch(x: &Foo) -> &mut Foo;
  24    |                ^^^^
  25
  26 error: mutable borrow from immutable input(s)
  27   --> $DIR/mut_from_ref.rs:22:21
  28    |
  29 LL | fn fail(x: &u32) -> &mut u16 {
  30    |                     ^^^^^^^^
  31    |
  32 note: immutable borrow here
  33   --> $DIR/mut_from_ref.rs:22:12
  34    |
  35 LL | fn fail(x: &u32) -> &mut u16 {
  36    |            ^^^^
  37
  38 error: mutable borrow from immutable input(s)
  39   --> $DIR/mut_from_ref.rs:26:50
  40    |
  41 LL | fn fail_lifetime<'a>(x: &'a u32, y: &mut u32) -> &'a mut u32 {
  42    |                                                  ^^^^^^^^^^^
  43    |
  44 note: immutable borrow here
  45   --> $DIR/mut_from_ref.rs:26:25
  46    |
  47 LL | fn fail_lifetime<'a>(x: &'a u32, y: &mut u32) -> &'a mut u32 {
  48    |                         ^^^^^^^
  49
  50 error: mutable borrow from immutable input(s)
  51   --> $DIR/mut_from_ref.rs:30:67
  52    |
  53 LL | fn fail_double<'a, 'b>(x: &'a u32, y: &'a u32, z: &'b mut u32) -> &'a mut u32 {
  54    |                                                                   ^^^^^^^^^^^
  55    |
  56 note: immutable borrow here
  57   --> $DIR/mut_from_ref.rs:30:27
  58    |
  59 LL | fn fail_double<'a, 'b>(x: &'a u32, y: &'a u32, z: &'b mut u32) -> &'a mut u32 {
  60    |                           ^^^^^^^     ^^^^^^^
  61
  62 error: mutable borrow from immutable input(s)
  63   --> $DIR/mut_from_ref.rs:44:35
  64    |
  65 LL | unsafe fn also_broken(x: &u32) -> &mut u32 {
  66    |                                   ^^^^^^^^
  67    |
  68 note: immutable borrow here
  69   --> $DIR/mut_from_ref.rs:44:26
  70    |
  71 LL | unsafe fn also_broken(x: &u32) -> &mut u32 {
  72    |                          ^^^^
  73
  74 error: aborting due to 6 previous errors
  75