1 error[E0658]: macro invocations in `extern {}` blocks are experimental (see issue #49476)
2 --> $DIR/feature-gate-macros_in_extern.rs:29:5
4 LL | returns_isize!(rust_get_test_int);
5 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
7 = help: add #![feature(macros_in_extern)] to the crate attributes to enable
9 error[E0658]: macro invocations in `extern {}` blocks are experimental (see issue #49476)
10 --> $DIR/feature-gate-macros_in_extern.rs:31:5
12 LL | takes_u32_returns_u32!(rust_dbg_extern_identity_u32);
13 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
15 = help: add #![feature(macros_in_extern)] to the crate attributes to enable
17 error[E0658]: macro invocations in `extern {}` blocks are experimental (see issue #49476)
18 --> $DIR/feature-gate-macros_in_extern.rs:33:5
20 LL | emits_nothing!();
23 = help: add #![feature(macros_in_extern)] to the crate attributes to enable
25 error: aborting due to 3 previous errors
27 For more information about this error, try `rustc --explain E0658`.