clarify how to grant the Travis user permission to trigger the build

1 files changed, 3 insertions, 1 deletions

diff --git a/Rakefile b/Rakefile
index 97d6bcbe..eb568e3e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -135,8 +135,10 @@ desc 'Trigger builds for all dependent projects on Travis CI'
           ENV['TRAVIS_TAG'].to_s.empty? &&
           (ENV['TRAVIS_JOB_NUMBER'].to_s.end_with? '.1')
     end
-    # NOTE TRAVIS_TOKEN env var must be defined in Travis interface
+    # NOTE The TRAVIS_TOKEN env var must be defined in Travis interface.
     # Retrieve this token using the `travis token` command.
+    # The GitHub user corresponding to the Travis user must have write access to the repository.
+    # After granting permission, sign into Travis and resync the repositories.
     next unless (token = ENV['TRAVIS_TOKEN'])
     require 'json'
     require 'net/http'