1 error[E0658]: use of unstable library feature 'trace_macros': `trace_macros` is not stable enough for use and is subject to change
2 --> $DIR/trace_macros-gate.rs:4:5
7 = note: see issue #29598 <https://github.com/rust-lang/rust/issues/29598> for more information
8 = help: add `#![feature(trace_macros)]` to the crate attributes to enable
10 error: trace_macros! accepts only `true` or `false`
11 --> $DIR/trace_macros-gate.rs:4:5
16 error[E0658]: use of unstable library feature 'trace_macros': `trace_macros` is not stable enough for use and is subject to change
17 --> $DIR/trace_macros-gate.rs:6:5
19 LL | trace_macros!(true);
22 = note: see issue #29598 <https://github.com/rust-lang/rust/issues/29598> for more information
23 = help: add `#![feature(trace_macros)]` to the crate attributes to enable
25 error[E0658]: use of unstable library feature 'trace_macros': `trace_macros` is not stable enough for use and is subject to change
26 --> $DIR/trace_macros-gate.rs:7:5
28 LL | trace_macros!(false);
31 = note: see issue #29598 <https://github.com/rust-lang/rust/issues/29598> for more information
32 = help: add `#![feature(trace_macros)]` to the crate attributes to enable
34 error[E0658]: use of unstable library feature 'trace_macros': `trace_macros` is not stable enough for use and is subject to change
35 --> $DIR/trace_macros-gate.rs:10:26
37 LL | ($x: ident) => { trace_macros!($x) }
41 | -------------- in this macro invocation
43 = note: see issue #29598 <https://github.com/rust-lang/rust/issues/29598> for more information
44 = help: add `#![feature(trace_macros)]` to the crate attributes to enable
45 = note: this error originates in the macro `expando` (in Nightly builds, run with -Z macro-backtrace for more info)
47 error: aborting due to 5 previous errors
49 For more information about this error, try `rustc --explain E0658`.