failed to run ["/bin/sh" "-c" "set -eux\nOVERLAY=\"/syzkaller/userspace-multicore/overlay\"\n# Cleanup in case something failed before.\nsync\ndoas umount /altroot || true\ndoas vnconfig -u vnd0 || true\n\ndoas /sbin/vnconfig vnd0 image\ndoas mount /dev/vnd0a /altroot\ndoas cp kernel /altroot/bsd\ntest -d \"$OVERLAY\" && doas cp -Rf \"$OVERLAY\"/. /altroot\nsync\ndoas umount /altroot\ndoas vnconfig -u vnd0\n"]: exit status 1
+ OVERLAY=/syzkaller/userspace-multicore/overlay
+ sync
+ doas umount /altroot
umount: /altroot: not currently mounted
+ true
+ doas vnconfig -u vnd0
vnconfig: VNDIOCCLR: Device not configured
+ true
+ doas /sbin/vnconfig vnd0 image
+ doas mount /dev/vnd0a /altroot
+ doas cp kernel /altroot/bsd
+ test -d /syzkaller/userspace-multicore/overlay
+ doas cp -Rf /syzkaller/userspace-multicore/overlay/. /altroot
+ sync
+ doas umount /altroot
umount: /altroot: Device busy