Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [y                                  45 kB/s | 1.5 kB     00:00    
Additional repo https_kojipkgs_fedoraproject_or 104 kB/s | 3.8 kB     00:00    
Additional repo https_download_copr_fedorainfra 100 kB/s | 3.3 kB     00:00    
Fedora - ELN BaseOS - Developmental packages fo  68 kB/s | 2.3 kB     00:00    
Fedora - ELN AppStream - Developmental packages  66 kB/s | 2.3 kB     00:00    
Fedora - ELN CodeReady Linux Builders - Build p  66 kB/s | 2.3 kB     00:00    
Error: 
 Problem: cannot install the best candidate for the job
  - nothing provides clang = 13.0.0 needed by clang-rpm-macros-1-136.el115.noarch from https_download_copr_fedorainfracloud_org_results_fedora_llvm_team_clang_rpm_macros_fedora_releasever_basearch
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
INFO: chroot_scan: 3 files copied to /var/lib/copr-rpmbuild/results/chroot_scan
INFO: /var/lib/mock/fedora-eln-x86_64-1706200861.636798/root/var/log/dnf.rpm.log
/var/lib/mock/fedora-eln-x86_64-1706200861.636798/root/var/log/dnf.librepo.log
/var/lib/mock/fedora-eln-x86_64-1706200861.636798/root/var/log/dnf.log
ERROR: Exception(/var/lib/copr-rpmbuild/workspace/workdir-mmgu1jug/perl-FileHandle-Fmode/perl-FileHandle-Fmode.spec) Config(fedora-eln-x86_64) 1 minutes 34 seconds
INFO: Results and/or logs in: /var/lib/copr-rpmbuild/results
INFO: Cleaning up build root ('cleanup_on_failure=True')
Start: clean chroot
INFO: unmounting tmpfs.
Finish: clean chroot
ERROR: Command failed: 
 # /usr/bin/systemd-nspawn -q -M 77fb7256ea894b5a9d9b7112ce42a363 -D /var/lib/mock/fedora-eln-x86_64-bootstrap-1706200861.636798/root -a --capability=cap_ipc_lock --rlimit=RLIMIT_NOFILE=10240 --capability=cap_ipc_lock --bind=/tmp/mock-resolv.q00l_rzh:/etc/resolv.conf --console=pipe --setenv=TERM=vt100 --setenv=SHELL=/bin/bash --setenv=HOME=/var/lib/mock/fedora-eln-x86_64-1706200861.636798/root/installation-homedir --setenv=HOSTNAME=mock --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin '--setenv=PROMPT_COMMAND=printf "\033]0;<mock-chroot>]: [This is one of the three attempts Mock does to install the BuildRequires specified in spec file. All of the three attempts failed to install `clang-rpm-macros` which runtime-depends on `clang = 13.0.0`.  But no package providing this exists.]

Issue: Because the BuildRequires aren't installable.
Resolution: Fix the `clang` or `clang-rpm-macros` package. If you don't have permissions to do this, ask the corresponding maintainer. This failure is not your fault.