Updated Travis CI configuration

Author: michalbundyra

.travis.yml

@@ -5,7 +5,6 @@ language: php
 cache:
   directories:
     - $HOME/.composer/cache
-    - vendor
 
 env:
   global:
@@ -34,19 +33,16 @@ matrix:
     - php: 7.2
       env:
         - DEPS=latest
-  allow_failures:
-    - php: 7.2
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
 
 install:
-  - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
+  - travis_retry composer install $COMPOSER_ARGS
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi
-  - composer show
+  - stty cols 120 && composer show
 
 script:
   - if [[ $TEST_COVERAGE == 'true' ]]; then composer test-coverage ; else composer test ; fi