{"action":"opened","issue":{"url":"https://api.github.com/repos/travis-ci/travis-ci/issues/5447","labels_url":"https://api.github.com/repos/travis-ci/travis-ci/issues/5447/labels{/name}","comments_url":"https://api.github.com/repos/travis-ci/travis-ci/issues/5447/comments","events_url":"https://api.github.com/repos/travis-ci/travis-ci/issues/5447/events","html_url":"https://github.com/travis-ci/travis-ci/issues/5447","id":126315255,"number":5447,"title":"R package builds erroneously requiring readr","user":{"login":"tomschenkjr","id":1639121,"avatar_url":"https://avatars.githubusercontent.com/u/1639121?v=3","gravatar_id":"","url":"https://api.github.com/users/tomschenkjr","html_url":"https://github.com/tomschenkjr","followers_url":"https://api.github.com/users/tomschenkjr/followers","following_url":"https://api.github.com/users/tomschenkjr/following{/other_user}","gists_url":"https://api.github.com/users/tomschenkjr/gists{/gist_id}","starred_url":"https://api.github.com/users/tomschenkjr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tomschenkjr/subscriptions","organizations_url":"https://api.github.com/users/tomschenkjr/orgs","repos_url":"https://api.github.com/users/tomschenkjr/repos","events_url":"https://api.github.com/users/tomschenkjr/events{/privacy}","received_events_url":"https://api.github.com/users/tomschenkjr/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-13T01:01:41Z","updated_at":"2016-01-13T01:01:41Z","closed_at":null,"body":"For some reason, builds of [RSocrata](https://github.com/Chicago/RSocrata) are resulting in unit tests that returns an error due to [readr not being installed](https://travis-ci.org/Chicago/RSocrata/builds/101982791#L2744) ([plain text](https://api.travis-ci.org/jobs/101982797/log.txt?deansi=true)). This error seems to only occur on Travis. The same build in AppVeyor (Windows) [does not present this error](https://ci.appveyor.com/project/cityofchicago/rsocrata/build/1.0.97#L261). \r\n\r\nAlso ran the build process (`--as-cran`) on an Ubuntu box, but did not get an error. Additional local builds on Windows and MacOS also did not present an issue.\r\n\r\nSo, I think I've narrowed it to Travis as a factor, but cannot see where this is being introduced. Might there be dependencies being introduced during the Travis build that might lead to this error?\r\n\r\n/cc @craigcitro @hadley @marks"}}