Expect language-nix and pcre-heavy tests to fail per #3607
Expect language-nix and pcre-heavy tests to fail per #3607

ethercrow/stackage,lwm/stackage,massysett/stackage,iand675/stackage,michalkonecny/stackage,Daniel-Diaz/stackage,stackbuilders/stackage,wereHamster/stackage,mstksg/stackage,fpco/stackage,clinty/stackage,fimad/stackage,creichert/stackage,Shimuuar/stackage,athanclark/stackage,mrkkrp/stackage,int-index/stackage,peti/stackage,soenkehahn/stackage,jonschoning/stackage,asr/stackage,simonmichael/stackage,mgajda/stackage,spencerjanssen/stackage