| thread 'rustc' panicked at 'assertion failed: rows.iter().all(|r| r.len() == v.len())', src/librustc_mir/hair/pattern/_match.rs:1085:5 | |
| note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace. | |
| error: internal compiler error: unexpected panic | |
| note: the compiler unexpectedly panicked. this is a bug. | |
| note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports | |
| note: rustc VERSION running on TARGET | |
| note: compiler flags: FLAGS | |