gistfile1.diff

diff --git a/lib/integrity/builder.rb b/lib/integrity/builder.rb
index 4b6ffa3..af90c8a 100644
--- a/lib/integrity/builder.rb
+++ b/lib/integrity/builder.rb
@@ -37,6 +37,9 @@ module Integrity
     def complete
       Integrity.log "Build #{commit} exited with #{@status} got:\n #{@output}"

+      # Remove invalid UTF8, see http://po-ru.com/diary/fixing-invalid-utf-8-in-ruby-revisited/
+      @output = (Iconv.iconv('UTF-8//IGNORE', 'UTF-8', @output).first + ' ')[0..-2]
+
       @build.update!(
         :completed_at => Time.now,
         :successful   => @status,