Dec 18, 2019 · cargo-bisect-rustc automatically downloads rustc artifacts and tests them against a project you provide until it finds the regression. At minimum, it will identify the nightly release which triggered the regression; but if the regression occurred in the last 168 days, it will even figure out the exact PR, which is often very useful in helping us fix the problem.

cargo-rustc man page. cargo-rustc — Compile the current package, and pass extra options to the compiler Synopsis. cargo rustc [] [--ARGS]Description. The specified target for the current package (or package specified by -p if provided) will be compiled along with all of its dependencies.