MacOS builds are failing due to sccache #6116
Description
This seems to affect the cargo clippy step, with the only output being:
(… many other lines of "checking" …)
Checking uu_printf v0.0.25 (/Users/runner/work/coreutils/coreutils/src/uu/printf)
Checking uu_cat v0.0.25 (/Users/runner/work/coreutils/coreutils/src/uu/cat)
Checking uu_expr v0.0.25 (/Users/runner/work/coreutils/coreutils/src/uu/expr)
Checking uu_nl v0.0.25 (/Users/runner/work/coreutils/coreutils/src/uu/nl)
sccache: Compile terminated by signal 6
error: could not compile `coreutils` (test "tests")
Error: Process completed with exit code 1.