The API forces use of finalizer to close the read end of the setup pipe, which is no longer considered acceptable. Exporting this as part of package container also imposes unnecessary maintenance burden.
Signed-off-by: Ophestra <cat@gensokyo.uk>
This helps indicate the exact origin and nature of the error. This eliminates generic WrapErr from container.
Signed-off-by: Ophestra <cat@gensokyo.uk>