warning: unused attribute `inline`
  --> $DIR/inert-attr-macro.rs:10:5
   |
LL |     #[inline] foo!();
   |     ^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/inert-attr-macro.rs:3:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_attributes)]` implied by `#[warn(unused)]`
note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `foo`
  --> $DIR/inert-attr-macro.rs:10:15
   |
LL |     #[inline] foo!();
   |               ^^^

warning: unused attribute `allow`
  --> $DIR/inert-attr-macro.rs:14:5
   |
LL |     #[allow(warnings)] #[inline] foo!();
   |     ^^^^^^^^^^^^^^^^^^
   |
note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `foo`
  --> $DIR/inert-attr-macro.rs:14:34
   |
LL |     #[allow(warnings)] #[inline] foo!();
   |                                  ^^^

warning: unused attribute `inline`
  --> $DIR/inert-attr-macro.rs:14:24
   |
LL |     #[allow(warnings)] #[inline] foo!();
   |                        ^^^^^^^^^
   |
note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `foo`
  --> $DIR/inert-attr-macro.rs:14:34
   |
LL |     #[allow(warnings)] #[inline] foo!();
   |                                  ^^^

warning: 3 warnings emitted