New upstream version 1.48.0~beta.8+dfsg1

[rustc.git] / src / test / ui / trivial_casts.stderr

error: trivial numeric cast: `i32` as `i32`
  --> $DIR/trivial_casts.rs:16:13
   |
LL |     let _ = 42_i32 as i32;
   |             ^^^^^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/trivial_casts.rs:4:24
   |
LL | #![deny(trivial_casts, trivial_numeric_casts)]
   |                        ^^^^^^^^^^^^^^^^^^^^^
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial numeric cast: `u8` as `u8`
  --> $DIR/trivial_casts.rs:19:13
   |
LL |     let _ = 42_u8 as u8;
   |             ^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&u32` as `*const u32`
  --> $DIR/trivial_casts.rs:24:13
   |
LL |     let _ = x as *const u32;
   |             ^^^^^^^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/trivial_casts.rs:4:9
   |
LL | #![deny(trivial_casts, trivial_numeric_casts)]
   |         ^^^^^^^^^^^^^
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&mut u32` as `*mut u32`
  --> $DIR/trivial_casts.rs:28:13
   |
LL |     let _ = x as *mut u32;
   |             ^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&[u32; 3]` as `&[u32]`
  --> $DIR/trivial_casts.rs:33:13
   |
LL |     let _ = x as &[u32];
   |             ^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&[u32; 3]` as `*const [u32]`
  --> $DIR/trivial_casts.rs:34:13
   |
LL |     let _ = x as *const [u32];
   |             ^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&mut [u32; 3]` as `&mut [u32]`
  --> $DIR/trivial_casts.rs:39:13
   |
LL |     let _ = x as &mut [u32];
   |             ^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&mut [u32; 3]` as `*mut [u32]`
  --> $DIR/trivial_casts.rs:40:13
   |
LL |     let _ = x as *mut [u32];
   |             ^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `Box<[u32; 3]>` as `Box<[u32]>`
  --> $DIR/trivial_casts.rs:45:13
   |
LL |     let _ = x as Box<[u32]>;
   |             ^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&Bar` as `&dyn Foo`
  --> $DIR/trivial_casts.rs:52:13
   |
LL |     let _ = x as &dyn Foo;
   |             ^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&Bar` as `*const dyn Foo`
  --> $DIR/trivial_casts.rs:53:13
   |
LL |     let _ = x as *const dyn Foo;
   |             ^^^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&mut Bar` as `&mut dyn Foo`
  --> $DIR/trivial_casts.rs:58:13
   |
LL |     let _ = x as &mut dyn Foo;
   |             ^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&mut Bar` as `*mut dyn Foo`
  --> $DIR/trivial_casts.rs:59:13
   |
LL |     let _ = x as *mut dyn Foo;
   |             ^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `Box<Bar>` as `Box<dyn Foo>`
  --> $DIR/trivial_casts.rs:64:13
   |
LL |     let _ = x as Box<dyn Foo>;
   |             ^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&fn(i32) {baz}` as `&dyn Fn(i32)`
  --> $DIR/trivial_casts.rs:70:13
   |
LL |     let _ = &baz as &dyn Fn(i32);
   |             ^^^^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&[closure@$DIR/trivial_casts.rs:72:13: 72:25]` as `&dyn Fn(i32)`
  --> $DIR/trivial_casts.rs:73:13
   |
LL |     let _ = &x as &dyn Fn(i32);
   |             ^^^^^^^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&'a Bar` as `&'a Bar`
  --> $DIR/trivial_casts.rs:79:13
   |
LL |     let _ = a as &'a Bar;
   |             ^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&'b Bar` as `&'a Bar`
  --> $DIR/trivial_casts.rs:81:13
   |
LL |     let _ = b as &'a Bar;
   |             ^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: trivial cast: `&'b Bar` as `&'b Bar`
  --> $DIR/trivial_casts.rs:83:13
   |
LL |     let _ = b as &'b Bar;
   |             ^^^^^^^^^^^^
   |
   = help: cast can be replaced by coercion; this might require a temporary variable

error: aborting due to 19 previous errors