snap try works, but executing the application doesn't work in some directories like /tmp

[Didier Roche-Tolomelli]

$ snap version
snap 2.22.3
snapd 2.22.3
series 16
ubuntu 16.04

1. create a snap under /tmp/foo and cd into it.
2. build it with snapcraft prime
3. snap try prime/
4. run any executable inside the snap, and you will get:
cannot change current working directory to the original directory: No such file or directory

snap try should either fail stating clearly why we wouldn't be able to execute (path overriden by snap-confine) or we should workaround through a temporary mount point available in $SNAP

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marco Trevisan (Treviño) (3v1n0)]

If you instead try to run the same from a non-tmp dir you get an error such as

  `/var/lib/snapd/snaps/your-snap_x1.snap` is missing