error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:7:1
   |
LL | #![rustc_deprecated()]
   | ^^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:10:1
   |
LL | #[rustc_deprecated()]
   | ^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:13:17
   |
LL |     mod inner { #![rustc_deprecated()] }
   |                 ^^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:16:5
   |
LL |     #[rustc_deprecated()] fn f() { }
   |     ^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:19:5
   |
LL |     #[rustc_deprecated()] struct S;
   |     ^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:22:5
   |
LL |     #[rustc_deprecated()] type T = S;
   |     ^^^^^^^^^^^^^^^^^^^^^

error: stability attributes may not be used outside of the standard library
  --> $DIR/issue-43106-gating-of-rustc_deprecated.rs:25:5
   |
LL |     #[rustc_deprecated()] impl S { }
   |     ^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 7 previous errors