devel/rubygem-capybara is missing a dependency on mini_mime >= 0.1.3, which will cause it to fail at runtime.
A commit references this bug: Author: sunpoet Date: Mon Aug 7 18:52:04 UTC 2017 New revision: 447512 URL: https://svnweb.freebsd.org/changeset/ports/447512 Log: Add missing RUN_DEPENDS - Bump PORTREVISION for dependency change PR: 221307 Reported by: lifanov Changes: head/devel/rubygem-capybara/Makefile
Committed. Thanks!