Skip scan/crypto tests during travis build

These tests were not run previously, as they were checked into the
vendor directory. Moreover, they're running too slowly and are causing
the build to hang and get killed.

test.sh

@@ -19,7 +19,7 @@ if [ ! -h gopath/src/${REPO_PATH} ]; then
     ln -s ../../../.. gopath/src/${REPO_PATH} || exit 255
 fi
 
-ls "${GOPATH}/src/${REPO_PATH}"
+echo "${GOPATH}/src/${REPO_PATH}"
 
 PACKAGES=""
 if [ "$#" != 0 ]; then
@@ -45,6 +45,11 @@ go install -tags "$BUILD_TAGS" ${REPO_PATH}/cmd/cfssl
 COVPROFILES=""
 for package in $(go list -f '{{if len .TestGoFiles}}{{.ImportPath}}{{end}}' $PACKAGES)
 do
+    if echo $package | grep -q "/scan/crypto"; then
+        echo "skipped $package"
+        continue
+    fi
+
     profile="$GOPATH/src/$package/.coverprofile"
     if [ $ARCH = 'x86_64'  ]; then
         go test -race -tags "$BUILD_TAGS" --coverprofile=$profile $package
@@ -65,6 +70,10 @@ fi
 
 for package in $PACKAGES
 do
+    if echo $package | grep -q "/scan/crypto"; then
+        continue
+    fi
+
     echo "fgt golint ${package}"
     fgt golint "${package}"
 done