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:

  [DEBUG util.py:556:  Executing command: ['/usr/bin/systemd-nspawn', '-q', '-M', 'e6787cae1a9f4c44a56fa85f07305c8a', '-D', '/var/lib/mock/centos-stream+epel-10-x86_64-bootstrap/root', '-a', '--capability=cap_ipc_lock', '--bind=/tmp/mock-resolv.5odq4ki7:/etc/resolv.conf', '--console=pipe', '--setenv=TERM=vt100', '--setenv=SHELL=/bin/bash', '--setenv=HOME=/var/lib/mock/centos-stream+epel-10-x86_64/root/installation-homedir', '--setenv=HOSTNAME=mock', '--setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin', '--setenv=PROMPT_COMMAND=printf "\\033]0;<mock-chroot>\\007"', '--setenv=PS1=<mock-chroot> \\s-\\v\\$ ', '--setenv=LANG=C.UTF-8', '--setenv=LC_MESSAGES=C.UTF-8', '--resolv-conf=off', '/usr/bin/dnf-3', 'builddep', '--installroot', '/var/lib/mock/centos-stream+epel-10-x86_64/root/', '--releasever', '10', '--setopt=deltarpm=False', '--setopt=allow_vendor_change=yes', '--allowerasing', '--disableplugin=local', '--disableplugin=spacewalk', '--disableplugin=versionlock', '/var/lib/mock/centos-stream+epel-10-x86_64/root//builddir/build/SRPMS/python-httpcore-1.0.7-1.el10_0.src.rpm', '--setopt=tsflags=nocontexts'] with env {'TERM': 'vt100', 'SHELL': '/bin/bash', 'HOME': '/var/lib/mock/centos-stream+epel-10-x86_64/root/installation-homedir', 'HOSTNAME': 'mock', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'PROMPT_COMMAND': 'printf "\\033]0;<mock-chroot>\\007"', 'PS1': '<mock-chroot> \\s-\\v\\$ ', 'LANG': 'C.UTF-8', 'LC_MESSAGES': 'C.UTF-8', 'SYSTEMD_NSPAWN_TMPFS_TMP': '0', 'SYSTEMD_SECCOMP': '0'} and shell False]: [Here is where the build starts trying to install the build requirements.]
=============
[DEBUG util.py:459:  No matching package to install: 'python3-pytest-httpbin']: [This shows that the build requirement of python3-pytest-httpbin could not be found.]
=============
[DEBUG util.py:459:  Not all dependencies satisfied
DEBUG util.py:459:  Error: Some packages could not be found.]: [The build stops here because not all build requirements could be installed.]

Issue: This package has a build requirement on python3-pytest-httpbin, but it is not available in any of the enabled repos.
Resolution: Ensure that the package name for the build requirement is correct in the spec file, and that all necessary repos are enabled for the build.  If those are OK, then fixing the build may require adding additional packages to those repos (such as EPEL in this case).