Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
Problem 1: package tcl-devel-1:9.0.0-1.fc42.ppc64le from copr_base requires tcl = 1:9.0.0-1.fc42, but none of the providers can be installed
  - cannot install both tcl-1:9.0.0-1.fc42.ppc64le from copr_base and tcl-1:8.6.15-6.fc42.ppc64le from fedora
  - package python3.9-3.9.21-1.fc42.ppc64le from fedora requires libtcl8.6.so()(64bit), but none of the providers can be installed
  - cannot install the best candidate for the job
  - conflicting requests
Seems that the tcl-devel package requires tcl package of version tcl-1:9.0.0-1, however, this version can't be installed together with tcl-1:8.6.15-6 which is already requested.