gistfile1.diff

diff --git a/lib/integrity/builder.rb b/lib/integrity/builder.rb
index 6968d9e..691ff70 100644
--- a/lib/integrity/builder.rb
+++ b/lib/integrity/builder.rb
@@ -46,7 +46,8 @@ module Integrity
     end
 
     def run
-      cmd = "(cd #{repo.directory} && #{@build.project.command} 2>&1)"
+      cmd = "(cd #{repo.directory} && RUBYOPT=#{pre_bundler_rubyopt} PATH=#{pre_bundler_path} && #{@build.project.command} 2>&1)"
+      Integrity.log cmd
       IO.popen(cmd, "r") { |io| @output = io.read }
       @status = $?.success?
     end
@@ -58,5 +59,14 @@ module Integrity
     def commit
       @build.commit.identifier
     end
+
+    private
+      def pre_bundler_path
+        ENV['PATH'] && ENV["PATH"].split(":").reject { |path| path.include?("vendor") }.join(":")
+      end
+
+      def pre_bundler_rubyopt
+        ENV['RUBYOPT'] && ENV["RUBYOPT"].split.reject { |opt| opt.include?("vendor") }.join(" ")
+      end
   end
 end