sudo dnf check
[sudo] password for af36:
crystal-1.6.2-1.1.x86_64 has installed conflict “crystal”: crystal-1.6.2-1.1.x86_64
Error: Check discovered 1 problem(s)
The RPM package had a Conflicts: crystal
which was meant to exclude alternative providers of this package, but it apparently also conflicts with itself.
I’ve removed that and released a new package iteration crystal-1.6.2-2.1
.
dnf check
is happy now.
Thanks for reporting.