ZipKit::FileReader raises MissingEOCD for truncated, corrupted, or
non-zip files. This exception is a direct StandardError subclass, not
a subclass of InvalidStructure or ReadError, so it escaped as an
unhandled job failure instead of being caught and surfaced to the user.
Broaden the rescue in ZipFile::Reader#initialize to catch ReadError
(parent of InvalidStructure), MissingEOCD, and UnsupportedFeature.
Jeremy Daer