$ git clone -n https://src.fedoraproject.org/rpms/rust-derive_arbitrary.git /var/lib/mock/f37-build-side-31-rust-devel-103013-5581/root/chroot_tmpdir/scmroot/rust-derive_arbitrary
Cloning into '/var/lib/mock/f37-build-side-31-rust-devel-103013-5581/root/chroot_tmpdir/scmroot/rust-derive_arbitrary'...
$ git reset --hard e8420369d14eb7e7f69136c5a88b035a68814fa6
HEAD is now at e842036 Update to version 1.1.6; Fixes RHBZ#2122379