error[E0308]: mismatched types
  --> $DIR/alloc-error-handler-bad-signature-2.rs:10:1
   |
LL |    #[alloc_error_handler]
   |    ---------------------- in this procedural macro expansion
LL | // fn oom(
LL | ||     info: Layout,
LL | || ) {
   | ||_- arguments to this function are incorrect
LL | |      loop {}
LL | |  }
   | |__^ expected struct `Layout`, found struct `core::alloc::Layout`
   |
   = note: struct `core::alloc::Layout` and struct `Layout` have similar names, but are actually distinct types
note: struct `core::alloc::Layout` is defined in crate `core`
  --> $SRC_DIR/core/src/alloc/layout.rs:LL:COL
note: struct `Layout` is defined in the current crate
  --> $DIR/alloc-error-handler-bad-signature-2.rs:7:1
   |
LL | struct Layout;
   | ^^^^^^^^^^^^^
note: function defined here
  --> $DIR/alloc-error-handler-bad-signature-2.rs:10:4
   |
LL | fn oom(
   |    ^^^
LL |     info: Layout,
   |     ------------
   = note: this error originates in the attribute macro `alloc_error_handler` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0308]: mismatched types
  --> $DIR/alloc-error-handler-bad-signature-2.rs:10:1
   |
LL |    #[alloc_error_handler]
   |    ---------------------- in this procedural macro expansion
LL | // fn oom(
LL | ||     info: Layout,
LL | || ) {
   | ||_^ expected `!`, found `()`
LL | |      loop {}
LL | |  }
   | |__- expected `!` because of return type
   |
   = note:   expected type `!`
           found unit type `()`
   = note: this error originates in the attribute macro `alloc_error_handler` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.