3 // unset-rustc-env:RUST_BACKTRACE
4 // compile-flags:-Z trait-solver=chalk --edition=2021
5 // error-pattern:stack backtrace:
7 // normalize-stderr-test "note: .*" -> ""
8 // normalize-stderr-test "thread 'rustc' .*" -> ""
9 // normalize-stderr-test " .*\n" -> ""
10 // normalize-stderr-test "DefId([^)]*)" -> "..."
14 async fn foo(x: u32) -> u32 {