Output of restic version

restic 0.7.3
compiled with go1.9 on linux/amd64

How did you run restic exactly?

restic -r rest:path check --json

What backend/server/service did you use?

rest-server

Expected behavior

A JSON array containing information about the check results, at least something like "errors":0 oder "errors":1 would be sufficient for me

Actual behavior

no json output given

Steps to reproduce the behavior

Just use restic with check command and json flag

Do you have any idea what may have caused this?

Do you have an idea how to solve the issue?