I made some changes to my project earlier this morning and everything went fine. About an hour later, I replaced the favicon with a new favicon and the deployment failed. I went and restarted a previous passing build from another project to see if it was the favicon or something behind the scenes and it turned out that build now failed too. I have some code from the failing build log and the passing build log below. It looks like some gems were originally fetched (multipart-post & faraday) are not being fetched in the latest build. Is this something I can fix or is this something handled internally?
PASSING
Installing deploy dependencies
Fetching dpl-heroku-1.10.8.gem
Fetching multipart-post-2.1.1.gem
Fetching faraday-0.15.4.gem
Fetching rendezvous-0.1.3.gem
Fetching netrc-0.11.0.gem
Successfully installed multipart-post-2.1.1
Successfully installed faraday-0.15.4
Successfully installed rendezvous-0.1.3
Successfully installed netrc-0.11.0
Successfully installed dpl-heroku-1.10.8
Parsing documentation for multipart-post-2.1.1
Installing ri documentation for multipart-post-2.1.1
Parsing documentation for faraday-0.15.4
Installing ri documentation for faraday-0.15.4
Parsing documentation for rendezvous-0.1.3
Installing ri documentation for rendezvous-0.1.3
Parsing documentation for netrc-0.11.0
Installing ri documentation for netrc-0.11.0
Parsing documentation for dpl-heroku-1.10.8
Installing ri documentation for dpl-heroku-1.10.8
Done installing documentation for multipart-post, faraday, rendezvous, netrc, dpl-heroku after 1 seconds
5 gems installed
dpl.2
Preparing deploy
................more code
Already up to date!
HEAD detached at a1bbd1a
nothing to commit, working tree clean
Dropped refs/stash@{0} (5ef6b44a8be3f81af79b52f4dcb73f971699feb2)
Done. Your build exited with 0.
FAILING
Installing deploy dependencies
Fetching rendezvous-0.1.3.gem
Fetching dpl-heroku-1.10.9.gem
Fetching netrc-0.11.0.gem
Successfully installed rendezvous-0.1.3
Successfully installed netrc-0.11.0
Successfully installed dpl-heroku-1.10.9
Parsing documentation for rendezvous-0.1.3
Installing ri documentation for rendezvous-0.1.3
Parsing documentation for netrc-0.11.0
Installing ri documentation for netrc-0.11.0
Parsing documentation for dpl-heroku-1.10.9
Installing ri documentation for dpl-heroku-1.10.9
Done installing documentation for rendezvous, netrc, dpl-heroku after 0 seconds
3 gems installed
/home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- faraday (LoadError)
from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-heroku-1.10.9/lib/dpl/provider/heroku.rb:1:in `'
from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:130:in `require'
from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:130:in `rescue in require'
from /home/travis/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:35:in `require'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/provider.rb:93:in `rescue in block in new'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/provider.rb:68:in `block in new'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/cli.rb:41:in `fold'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/provider.rb:67:in `new'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/cli.rb:31:in `run'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/lib/dpl/cli.rb:7:in `run'
from /home/travis/.rvm/gems/ruby-2.4.1/gems/dpl-1.10.9/bin/dpl:5:in `'
from /home/travis/.rvm/gems/ruby-2.4.1/bin/dpl:23:in `load'
from /home/travis/.rvm/gems/ruby-2.4.1/bin/dpl:23:in `'
failed to deploy