bundle update mailcatcher
Fetching gem metadata from https://gems.funbox.io/...
Fetching gem metadata from https://gems.kaos.st/..........
Fetching gem metadata from https://gems.funbox.io/..
Resolving dependencies....
Bundler could not find compatible versions for gem "rack":
In Gemfile:
mailcatcher (~> 0.7.1) was resolved to 0.7.1, which depends on
rack (~> 1.5)
sidekiq-influxdb was resolved to 1.4.1, which depends on
sidekiq was resolved to 6.2.1, which depends on
rack (~> 2.0)
Can't update mailcatcher