$ hdeps --no-color batman==1 batman==2
batman (==1.0) via ==1 [conflict]
. robin (==1.0) via ==1.0 [conflict]
batman (==2.0) via ==2 [conflict]
. robin (==2.0) via >1.0 [conflict]
========== Summary ==========
Found conflict: batman ['1.0', '2.0']
Found conflict: robin ['1.0', '2.0']
Failed to resolve following conflicts:
batman ['1.0', '2.0']
robin ['1.0', '2.0']
