This is admittedly not a great solution, with this approach every single binary that wants to work as a RUSTC_WORKSPACE_WRAPPER and sccache will need to be added to this list. Long term I expect this should be changed to detect rustc without ever checking the name of the binary, I wouldn't mind doing that as part of this PR but I didn't want to spend the time exploring sccache enough to be confident in my changes beyond this minimal fix.

Thank you!