93e8201ca7
Rollup of 9 pull requests Successful merges: - #91343 (Fix suggestion to slice if scrutinee is a `Result` or `Option`) - #93019 (If an integer is entered with an upper-case base prefix (0Xbeef, 0O755, 0B1010), suggest to make it lowercase) - #93090 (`impl Display for io::ErrorKind`) - #93456 (Remove an unnecessary transmute from opaque::Encoder) - #93492 (Hide failed command unless in verbose mode) - #93504 (kmc-solid: Increase the default stack size) - #93513 (Allow any pretty printed line to have at least 60 chars) - #93532 (Update books) - #93533 (Update cargo) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.