5ac0b2d021
Revert "Auto merge of #122140 - oli-obk:track_errors13, r=davidtwco" This reverts commit 65cd843ae06ad00123c131a431ed5304e4cd577a, reversing changes made to d255c6a57c393db6221b1ff700daea478436f1cd. reverts https://github.com/rust-lang/rust/pull/122140 It was a large regression in wall time due to trashing CPU caches
The driver crate is effectively the "main" function for the rust
compiler. It orchestrates the compilation process and "knits together"
the code from the other crates within rustc. This crate itself does
not contain any of the "main logic" of the compiler (though it does
have some code related to pretty printing or other minor compiler
options).
For more information about how the driver works, see the rustc dev guide.