//@ aux-build:test-macros.rs //@ compile-flags: -Z proc-macro-backtrace //@ rustc-env:RUST_BACKTRACE=0 //@ normalize-stderr-test "thread '.*' panicked " -> "" //@ normalize-stderr-test "note:.*RUST_BACKTRACE=1.*\n" -> "" //@ needs-unwind proc macro panics to report errors #[macro_use] extern crate test_macros; #[derive(Panic)] //~^ ERROR: proc-macro derive panicked struct Foo; fn main() {}