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: 
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.