#!perl -we
# failing packages depended upon the most.  consider patching.
next unless ($p,$mm)=/INFO previous dependency did not install: (\S+) = (.*)\. at dry-run/;
@F=split for($mm);
for(@F){
    push @{$x{$_}},$p
}END{
    for (sorteys%x){
        print scalar@{$x{$_}}," $_:";
        for$p(sort@{$x{$_}}){
            print " $p"}print"\n"
    }
}