feat(frontends/lean/migrate_cmd): catch memory error in the migrate command
feat(frontends/lean/migrate_cmd): catch memory error in the migrate command

leanprover-community/lean,avigad/lean,fpvandoorn/lean2,avigad/lean,soonhokong/lean-osx,UlrikBuchholtz/lean,levnach/lean,dselsam/lean,soonhokong/lean,Kha/lean,soonhokong/lean-osx,leanprover-community/lean,dselsam/lean,c-cube/lean,soonhokong/lean-windows,fpvandoorn/lean,levnach/lean,leanprover/lean,dselsam/lean,fpvandoorn/lean,leodemoura/lean,dselsam/lean,digama0/lean,avigad/lean,fpvandoorn/lean,johoelzl/lean,leodemoura/lean,soonhokong/lean-windows,sp3ctum/lean,Kha/lean,sp3ctum/lean,leodemoura/lean,javra/lean,eigengrau/lean,fpvandoorn/lean,fpvandoorn/lean2,rlewis1988/lean,soonhokong/lean-osx,Kha/lean,sp3ctum/lean,leanprover/lean,Kha/lean,htzh/lean,fpvandoorn/lean,UlrikBuchholtz/lean,fpvandoorn/lean2,leanprover/lean,c-cube/lean,rlewis1988/lean,rlewis1988/lean,c-cube/lean,johoelzl/lean,htzh/lean,soonhokong/lean-windows,soonhokong/lean,htzh/lean,dselsam/lean,leanprover-community/lean,soonhokong/lean,c-cube/lean,sp3ctum/lean,fgdorais/lean,Kha/lean,levnach/lean,digama0/lean,soonhokong/lean-osx,eigengrau/lean,leanprover/lean,fgdorais/lean,UlrikBuchholtz/lean,leanprover-community/lean,fpvandoorn/lean2,rlewis1988/lean,digama0/lean,soonhokong/lean-windows,soonhokong/lean-osx,leanprover/lean,javra/lean,fpvandoorn/lean,c-cube/lean,fgdorais/lean,levnach/lean,fgdorais/lean,johoelzl/lean,johoelzl/lean,soonhokong/lean,leodemoura/lean,avigad/lean,fgdorais/lean,avigad/lean,leodemoura/lean,Kha/lean,leanprover-community/lean,johoelzl/lean,fpvandoorn/lean2,johoelzl/lean,avigad/lean,eigengrau/lean,fgdorais/lean,dselsam/lean,leanprover-community/lean,leodemoura/lean,htzh/lean,rlewis1988/lean,leanprover/lean,digama0/lean,UlrikBuchholtz/lean,rlewis1988/lean,UlrikBuchholtz/lean,javra/lean,soonhokong/lean-windows,javra/lean,htzh/lean,sp3ctum/lean,eigengrau/lean,javra/lean,levnach/lean,eigengrau/lean,digama0/lean,soonhokong/lean,digama0/lean