error: unknown `doc` attribute `as_ptr`
  --> $DIR/doc-attr.rs:7:7
   |
LL | #[doc(as_ptr)]
   |       ^^^^^^
   |
note: the lint level is defined here
  --> $DIR/doc-attr.rs:2:9
   |
LL | #![deny(warnings)]
   |         ^^^^^^^^
   = note: `#[deny(invalid_doc_attributes)]` implied by `#[deny(warnings)]`
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: invalid `doc` attribute
  --> $DIR/doc-attr.rs:12:7
   |
LL | #[doc(123)]
   |       ^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: invalid `doc` attribute
  --> $DIR/doc-attr.rs:15:7
   |
LL | #[doc("hello", "bar")]
   |       ^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: invalid `doc` attribute
  --> $DIR/doc-attr.rs:15:16
   |
LL | #[doc("hello", "bar")]
   |                ^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: unknown `doc` attribute `foo::bar`
  --> $DIR/doc-attr.rs:20:7
   |
LL | #[doc(foo::bar, crate::bar::baz = "bye")]
   |       ^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: unknown `doc` attribute `crate::bar::baz`
  --> $DIR/doc-attr.rs:20:17
   |
LL | #[doc(foo::bar, crate::bar::baz = "bye")]
   |                 ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: unknown `doc` attribute `as_ptr`
  --> $DIR/doc-attr.rs:3:8
   |
LL | #![doc(as_ptr)]
   |        ^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>

error: aborting due to 7 previous errors