Disable testing of pre 6.9 on Travis CI

diff --git a/.travis.yml b/.travis.yml
index 75b8bdc..7aa51f5 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,12 +6,6 @@ env:
   global:
     - RACKET_DIR=~/racket
   matrix:
-    - RACKET_VERSION=6.3
-    - RACKET_VERSION=6.4
-    - RACKET_VERSION=6.5
-    - RACKET_VERSION=6.6
-    - RACKET_VERSION=6.7
-    - RACKET_VERSION=6.8
     - RACKET_VERSION=6.9
     - RACKET_VERSION=6.10
     - RACKET_VERSION=6.11
@@ -29,8 +23,8 @@ env:
     - RACKET_VERSION=HEAD
 
 matrix:
-  #allow_failures:
-  #  - env: RACKET_VERSION=HEAD
+  allow_failures:
+    - env: RACKET_VERSION=HEAD
   fast_finish: true
 
 install: