mongorestore hangs indefinitely

I'm trying to restore a database using mongorestore from a gzip file. The database is ~89MB in size, with the gzip file being about 4.4MB.

However, the restore hangs indefinitely without and error message. How should I troubleshoot this?

The command I run is:

mongorestore --gzip --archive ./my-db.gz --drop -u admin --authenticationDatabase admin --verbose=5

And the response is thus:

2018-01-09T15:47:45.089+0100    standard input is a terminal; reading password from terminal
Enter password:

2018-01-09T15:47:46.508+0100    will listen for SIGTERM, SIGINT, and SIGKILL
2018-01-09T15:47:46.509+0100    checking options
2018-01-09T15:47:46.509+0100        dumping with object check disabled
2018-01-09T15:47:46.527+0100    connected to node type: standalone
2018-01-09T15:47:46.528+0100    standalone server: setting write concern w to 1
2018-01-09T15:47:46.528+0100    using write concern: w='1', j=false, fsync=false, wtimeout=0

Here, it stops forever. The database is successfully created, but remains 0b in size.

Curiously, the database overview in MongoDB Compass shows the single collection in the database having ~28k documents, which is what I expect, with average size and other metadata apparently correct, but nothing can be read for it.

I've exported the db from a live cluster and am trying to import into my local dev environment, running a single instance through Docker.

Where should I go from here?

Thanks.