stack backtrace:
0: rust_begin_unwind
at /rustc/e95e084a14870a718c712936ab5a8f8cd0159485/library/std/src/panicking.rs:498:5
1: core::panicking::panic_fmt
at /rustc/e95e084a14870a718c712936ab5a8f8cd0159485/library/core/src/panicking.rs:107:14
2: core::panicking::panic_display::<&str>
3: <rustc_errors::HandlerInner>::flush_delayed
4: <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop
5: core::ptr::drop_in_place::<rustc_session::parse::ParseSess>
6: <alloc::rc::Rc<rustc_session::session::Session> as core::ops::drop::Drop>::drop
7: core::ptr::drop_in_place::<rustc_interface::interface::Compiler>
8: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
9: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
There may be a cause somewhere in between 6bda5b3 (2021-12-12) and 8f117a7 (2021-12-13).
Code
Playground
Meta
rustc --version --verbose:Error output
Backtrace