Export more Travis debugging and fix Git issue.

.travis.yml

@@ -15,10 +15,12 @@ matrix:
       rvm: system
 
 before_install:
+  - sudo rm -rf /usr/local/.git
   - sudo rsync -az "$TRAVIS_BUILD_DIR/" /usr/local/
   - export TRAVIS_BUILD_DIR="/usr/local"
   - sudo chown -R $USER /usr/local
   - cd /usr/local
+  - env | grep TRAVIS_
   - if [ -f ".git/shallow" ]; then travis_retry git fetch --unshallow; fi
   - git reset --hard $TRAVIS_COMMIT
   - git clean -qxdff

Library/Homebrew/cmd/test-bot.rb

@@ -354,6 +354,14 @@ module Homebrew
         @name = "#{@formulae.first}-#{diff_end_sha1}"
       end
 
+      if ENV["TRAVIS"]
+        puts "name: #{@name}"
+        puts "url: #{@url}"
+        puts "hash: #{@hash}"
+        puts "diff_start_sha1: #{diff_start_sha1}"
+        puts "diff_end_sha1: #{diff_end_sha1}"
+      end
+
       @log_root = @brewbot_root + @name
       FileUtils.mkdir_p @log_root