-rm -rf target/ build/ build_sysroot/{sysroot_src/,target/,compiler-builtins/} perf.data{,.old}
-rm -rf rand/ regex/ simple-raytracer/
+rm -rf build_sysroot/{sysroot_src/,target/,compiler-builtins/,rustc_version}
+rm -rf target/ build/ perf.data{,.old}
+rm -rf rand/ regex/ simple-raytracer/ stdsimd/