==> Building on U ==> Checking for remote environment... ==> Syncing package to remote host... sending incremental file list ./ PKGBUILD 1,122 100% 0.00kB/s 0:00:00 1,122 100% 0.00kB/s 0:00:00 (xfr#1, to-chk=1/3) mmctl-7.0.1-1.log 200 100% 195.31kB/s 0:00:00 200 100% 195.31kB/s 0:00:00 (xfr#2, to-chk=0/3) sent 668 bytes received 75 bytes 495.33 bytes/sec total size is 1,310 speedup is 1.76 ==> Patching arch to riscv64... ==> Running extra-riscv64-build -- -d /home/felix/packages/riscv64-pkg-cache:/var/cache/pacman/pkg -l felix1 on remote host... ==> Locking clean chroot...done [?25l:: Synchronizing package databases... core downloading... extra downloading... community downloading... :: Starting full system upgrade... there is nothing to do [?25h==> Building in chroot for [extra] (riscv64)... ==> Synchronizing chroot copy [/var/lib/archbuild/extra-riscv64/root] -> [felix1]...ERROR: Not a Btrfs subvolume: Invalid argument ==> ERROR: Unable to create subvolume /var/lib/archbuild/extra-riscv64/felix1 receiving incremental file list mmctl-7.0.1-1-riscv64-prepare.log sent 43 bytes received 749 bytes 1,584.00 bytes/sec total size is 1,796 speedup is 2.27