Revert "Remove constraints related to "retry < 0.7", closes #975"
Revert "Remove constraints related to "retry < 0.7", closes #975"

This reverts commit 353e9667f4b9ed63a147871cb477d3e4b1a1b2ba.

amcphail/stackage,mstksg/stackage,spencerjanssen/stackage,michalkonecny/stackage,GregorySchwartz/stackage,phaazon/stackage,peti/stackage,bartavelle/stackage,brendanhay/stackage,garetxe/stackage,fpco/stackage,creichert/stackage,christiaanb/stackage,DanielG/stackage,nomeata/stackage,jonschoning/stackage,clinty/stackage,asr/stackage,k0ral/stackage,judah/stackage,alanz/stackage,simonmichael/stackage,ygale/stackage,agrafix/stackage,Daniel-Diaz/stackage,mgajda/stackage,int-index/stackage,soenkehahn/stackage,l29ah/stackage,wereHamster/stackage,fimad/stackage,athanclark/stackage,codedmart/stackage,Shimuuar/stackage,massysett/stackage,phadej/stackage,meteficha/stackage,marcinmrotek/stackage,lwm/stackage,Gabriel439/stackage,mrkkrp/stackage,jaspervdj/stackage,ethercrow/stackage,iand675/stackage,stackbuilders/stackage