[INFO] [stderr] thread 'rustc' panicked at 'byte index 42492 is not a char boundary; it is inside '━' (bytes 42490..42493) of `use super::Type; [INFO] [stderr] use crate::{ [INFO] [stderr] ast::{Annotation, BinOp, CallArg, Span, UntypedPattern}, [INFO] [stderr] expr::{self, UntypedExpr}, [INFO] [stderr] format::Formatter, [INFO] [stderr] levenshtein, [INFO] [stderr] pretty::Documentable, [INFO] [stderr] }; [INFO] [stderr] use indoc::formatdoc; [INFO] [stderr] use miette::{Diagnostic, LabeledSpan}; [INFO] [stderr] use `[...]', compiler/rustc_span/src/source_map.rs:1025:14