https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81926
--- Comment #9 from Dennis Clarke <dclarke at blastwave dot org> --- If I remove the "go" language from the mix then I get reasonable results : https://gcc.gnu.org/ml/gcc-testresults/2017-08/msg02064.html I will install that and then try again with the "all" languages selection after stage1.