linode:fedora-25-64 .../tests/main/snap-on-non-shared-root# SNAP_CONFINE_DEBUG=yes test-snapd-tools.echo hello
DEBUG: security tag: snap.test-snapd-tools.echo
DEBUG: executable:   /usr/lib/snapd/snap-exec
DEBUG: confinement:  non-classic
DEBUG: preparing seccomp profile associated with security tag snap.test-snapd-tools.echo
DEBUG: host arch (kernel) is '-1073741762'
DEBUG: native arch (userspace) is '-1073741762'
DEBUG: adding compat arch '1073741827'
DEBUG: creating lock directory /run/snapd/lock (if missing)
DEBUG: opening lock directory /run/snapd/lock
DEBUG: opening lock file: /run/snapd/lock/.lock
DEBUG: sanity timeout initialized and set for three seconds
DEBUG: acquiring exclusive lock (scope (global))
DEBUG: sanity timeout reset and disabled
DEBUG: releasing lock (scope: (global))
DEBUG: checking if the current process shares mount namespace with the init process
DEBUG: re-associating is not required
DEBUG: creating lock directory /run/snapd/lock (if missing)
DEBUG: opening lock directory /run/snapd/lock
DEBUG: opening lock file: /run/snapd/lock/.lock
DEBUG: sanity timeout initialized and set for three seconds
DEBUG: acquiring exclusive lock (scope (global))
DEBUG: sanity timeout reset and disabled
DEBUG: unsharing snap namespace directory
DEBUG: creating namespace group directory /run/snapd/ns
DEBUG: namespace group directory does not require intialization
DEBUG: share snap directory here...
DEBUG: releasing lock (scope: (global))
DEBUG: creating lock directory /run/snapd/lock (if missing)
DEBUG: opening lock directory /run/snapd/lock
DEBUG: opening lock file: /run/snapd/lock/test-snapd-tools.lock
DEBUG: sanity timeout initialized and set for three seconds
DEBUG: acquiring exclusive lock (scope test-snapd-tools)
DEBUG: sanity timeout reset and disabled
DEBUG: initializing mount namespace: test-snapd-tools
DEBUG: opening namespace group directory /run/snapd/ns
DEBUG: attempting to re-associate the mount namespace with the namespace group test-snapd-tools
DEBUG: successfully re-associated the mount namespace with the namespace group test-snapd-tools
DEBUG: releasing resources associated with namespace group test-snapd-tools
DEBUG: releasing lock (scope: test-snapd-tools)
DEBUG: resetting PATH to values in sync with core snap
DEBUG: snappy_udev_init
DEBUG: creating user data directory: /root/snap/test-snapd-tools/5
DEBUG: raising privileges to load seccomp profile
DEBUG: loading seccomp profile into the kernel
DEBUG: dropping privileges after loading seccomp profile
DEBUG: execv(/usr/lib/snapd/snap-exec, /usr/lib/snapd/snap-exec...)
DEBUG:  argv[1] = test-snapd-tools.echo
DEBUG:  argv[2] = hello
cannot snap-exec: cannot read info for "test-snapd-tools": cannot find installed snap "test-snapd-tools" at revision 5