diff --git a/.env b/.env
index fda527930d..63ae0f1962 100644
--- a/.env
+++ b/.env
@@ -18,6 +18,9 @@ LOCAL_PHP=latest
 # Whether or not to enable XDebug.
 LOCAL_PHP_XDEBUG=false
 
+# Whether or not to enable Memcached.
+LOCAL_PHP_MEMCACHED=false
+
 # The MySQL version to use. See https://hub.docker.com/_/mysql/ for valid versions.
 LOCAL_MYSQL=5.7
 
diff --git a/.travis.yml b/.travis.yml
index 15ed25bd35..4e083c87e9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,43 +17,38 @@ cache:
 
 env:
   global:
-    - LOCAL_DIR=build
+    - LOCAL_DIR: build
 
 matrix:
   include:
   - env: WP_TRAVISCI=test:e2e
+    name: E2E Tests
   - env: WP_TRAVISCI=travis:phpcs
+    name: PHP Linting
   - env: WP_TRAVISCI=travis:js
+    name: JS Tests
   - env: LOCAL_PHP=7.3-fpm WP_TRAVISCI=test:php
-  - php: 7.3
-    dist: trusty
-    env: WP_TRAVIS_OBJECT_CACHE=true WP_TRAVISCI=travis:phpunit
-    services: memcached
+    name: "PHPUnit Tests: PHP 7.3"
+  - env: LOCAL_PHP=7.3-fpm LOCAL_PHP_MEMCACHED=true WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 7.3 with Memcached"
   - env: LOCAL_PHP=7.2-fpm WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 7.2"
   - env: LOCAL_PHP=7.1-fpm WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 7.1"
   - env: LOCAL_PHP=7.0-fpm WP_TEST_REPORTER=true WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 7.0"
   - env: LOCAL_PHP=5.6-fpm WP_TRAVISCI=test:php
-  - php: 7.4snapshot
-    dist: trusty
-    env: WP_TRAVISCI=travis:phpunit
-  - php: nightly
-    dist: trusty
-    env: WP_TRAVISCI=travis:phpunit
+    name: "PHPUnit Tests: PHP 5.6"
+  - env: LOCAL_PHP=7.4-fpm WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 7.4"
+  - env: LOCAL_PHP=8.0-fpm WP_TRAVISCI=test:php
+    name: "PHPUnit Tests: PHP 8.0"
   allow_failures:
-  - php: 7.4snapshot
-  - php: nightly
+  - env: LOCAL_PHP=7.4-fpm WP_TRAVISCI=test:php
+  - env: LOCAL_PHP=8.0-fpm WP_TRAVISCI=test:php
   fast_finish: true
 
 before_install:
-- |
-  if [[ "$WP_TRAVISCI" == "travis:phpunit" ]]; then
-      mysql -u root -e "CREATE DATABASE wordpress_tests;"
-      cp wp-tests-config-sample.php wp-tests-config.php
-      sed -i "s/youremptytestdbnamehere/wordpress_tests/" wp-tests-config.php
-      sed -i "s/yourusernamehere/root/" wp-tests-config.php
-      sed -i "s/yourpasswordhere//" wp-tests-config.php
-      travis_retry svn checkout https://plugins.svn.wordpress.org/wordpress-importer/tags/0.6.3/ tests/phpunit/data/plugins/wordpress-importer
-  fi
 - |
   if [[ "$WP_TRAVISCI" == "test:php" ]]; then
       cp wp-tests-config-sample.php wp-tests-config.php
@@ -61,6 +56,7 @@ before_install:
       sed -i "s/yourusernamehere/root/" wp-tests-config.php
       sed -i "s/yourpasswordhere/password/" wp-tests-config.php
       sed -i "s/localhost/mysql/" wp-tests-config.php
+      echo "define( 'FS_METHOD', 'direct' );" >> wp-tests-config.php
       travis_retry svn checkout https://plugins.svn.wordpress.org/wordpress-importer/tags/0.6.3/ tests/phpunit/data/plugins/wordpress-importer
   fi
 - |
@@ -68,11 +64,6 @@ before_install:
   curl -L https://github.com/docker/compose/releases/download/1.24.0/docker-compose-`uname -s`-`uname -m` > docker-compose
   chmod +x docker-compose
   sudo mv docker-compose /usr/local/bin
-- |
-  if [[ "$WP_TRAVIS_OBJECT_CACHE" == "true" ]]; then
-    cp tests/phpunit/includes/object-cache.php src/wp-content/object-cache.php
-    echo "extension = memcached.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
-  fi
 
 before_script:
 - |
@@ -107,19 +98,22 @@ before_script:
   if [[ "$WP_TRAVISCI" == "test:e2e" ]] || [[ "$WP_TRAVISCI" == "test:php" ]]; then
     npm run env:start
     npm run build
+    docker-compose -f tools/local-env/docker-compose.yml run --rm mysql mysql --version
+    docker-compose -f tools/local-env/docker-compose.yml run --rm php php --version
+    docker-compose -f tools/local-env/docker-compose.yml run --rm php php -m
+    docker-compose -f tools/local-env/docker-compose.yml -f tools/local-env/docker-compose.scripts.yml run --rm phpunit phpunit --version
+  fi
+- |
+  if [[ "$LOCAL_PHP_MEMCACHED" == "true" ]]; then
+    cp tests/phpunit/includes/object-cache.php build/wp-content/object-cache.php
+    docker run --name memcached --net local-env_wpdevnet -d memcached
   fi
 - |
   if [[ "$WP_TRAVISCI" == "test:e2e" ]]; then
     npm run env:install
   fi
-- mysql --version
-- phpenv versions
-- php --version
-- php -m
 - npm --version
 - node --version
-- which phpunit
-- phpunit --version
 - curl --version
 - git --version
 - svn --version
@@ -130,11 +124,11 @@ script:
     if [[ "$WP_TRAVISCI" == "test:e2e" ]]; then
       npm run test:e2e
     elif [[ "$WP_TRAVISCI" == "test:php" ]]; then
-      npm run test:php -- -- -- --verbose -c phpunit.xml.dist
-      npm run test:php -- -- -- --verbose -c phpunit.xml.dist --group ajax
-      npm run test:php -- -- -- --verbose -c tests/phpunit/multisite.xml
-      npm run test:php -- -- -- --verbose -c tests/phpunit/multisite.xml --group ms-files
-      npm run test:php -- -- -- --verbose -c phpunit.xml.dist --group external-http
+      npm run test:php -- -- -- --verbose -c phpunit.xml.dist &&
+      npm run test:php -- -- -- --verbose -c phpunit.xml.dist --group ajax &&
+      npm run test:php -- -- -- --verbose -c tests/phpunit/multisite.xml &&
+      npm run test:php -- -- -- --verbose -c tests/phpunit/multisite.xml --group ms-files &&
+      npm run test:php -- -- -- --verbose -c phpunit.xml.dist --group external-http &&
       npm run test:php -- -- -- --verbose -c phpunit.xml.dist --group restapi-jsclient
     else
       npm run grunt $WP_TRAVISCI
diff --git a/package.json b/package.json
index 023b269d48..8ab2c53cea 100644
--- a/package.json
+++ b/package.json
@@ -147,6 +147,8 @@
 		"env:cli": "dotenv npm run env:__cli-next",
 		"env:__cli-next": "docker-compose -f ./tools/local-env/docker-compose.yml -f ./tools/local-env/docker-compose.scripts.yml run --rm cli",
 		"env:logs": "docker-compose -f ./tools/local-env/docker-compose.yml -f ./tools/local-env/docker-compose.scripts.yml logs",
+		"env:pull": "dotenv npm run env:__pull-next",
+		"env:__pull-next": "docker-compose -f ./tools/local-env/docker-compose.yml -f ./tools/local-env/docker-compose.scripts.yml pull",
 		"test:e2e": "dotenv npm run test:__e2e-next",
 		"test:__e2e-next": "cross-var cross-env WP_BASE_URL=http://localhost:$LOCAL_PORT wp-scripts test-e2e --config tests/e2e/jest.config.js",
 		"test:php": "dotenv npm run test:__php-next",
diff --git a/tests/phpunit/includes/object-cache.php b/tests/phpunit/includes/object-cache.php
index 8fcc4f9261..c97ccb8d64 100644
--- a/tests/phpunit/includes/object-cache.php
+++ b/tests/phpunit/includes/object-cache.php
@@ -835,7 +835,7 @@ class WP_Object_Cache {
 		if ( isset( $memcached_servers ) ) {
 			$this->servers = $memcached_servers;
 		} else {
-			$this->servers = array( array( '127.0.0.1', 11211 ) );
+			$this->servers = array( array( 'memcached', 11211 ) );
 		}
 
 		$this->addServers( $this->servers );
diff --git a/tests/phpunit/tests/ajax/CustomizeMenus.php b/tests/phpunit/tests/ajax/CustomizeMenus.php
index bca0bdcc64..bb092cdad4 100644
--- a/tests/phpunit/tests/ajax/CustomizeMenus.php
+++ b/tests/phpunit/tests/ajax/CustomizeMenus.php
@@ -54,7 +54,7 @@ class Tests_Ajax_CustomizeMenus extends WP_Ajax_UnitTestCase {
 
 		if ( 'administrator' !== $role ) {
 			// If we're not an admin, we should get a wp_die(-1).
-			$this->setExpectedException( 'WPAjaxDieStopException' );
+			$this->setExpectedException( 'WPAjaxDieStopException', '-1' );
 		}
 
 		wp_set_current_user( self::factory()->user->create( array( 'role' => $role ) ) );
@@ -443,7 +443,7 @@ class Tests_Ajax_CustomizeMenus extends WP_Ajax_UnitTestCase {
 
 		if ( 'administrator' !== $role ) {
 			// If we're not an admin, we should get a wp_die(-1).
-			$this->setExpectedException( 'WPAjaxDieStopException' );
+			$this->setExpectedException( 'WPAjaxDieStopException', '-1' );
 		}
 
 		wp_set_current_user( self::factory()->user->create( array( 'role' => $role ) ) );
diff --git a/tools/local-env/docker-compose.scripts.yml b/tools/local-env/docker-compose.scripts.yml
index 1f42a5261b..f5a5153545 100644
--- a/tools/local-env/docker-compose.scripts.yml
+++ b/tools/local-env/docker-compose.scripts.yml
@@ -13,6 +13,7 @@ services:
 
     environment:
       LOCAL_PHP_XDEBUG: ${LOCAL_PHP_XDEBUG-false}
+      LOCAL_PHP_MEMCACHED: ${LOCAL_PHP_MEMCACHED-false}
 
     volumes:
       - ../../:/var/www
@@ -31,6 +32,7 @@ services:
 
     environment:
       LOCAL_PHP_XDEBUG: ${LOCAL_PHP_XDEBUG-false}
+      LOCAL_PHP_MEMCACHED: ${LOCAL_PHP_MEMCACHED-false}
 
     volumes:
       - ./phpunit-config.ini:/usr/local/etc/php/conf.d/phpunit-config.ini
diff --git a/tools/local-env/docker-compose.yml b/tools/local-env/docker-compose.yml
index 32021df1df..ddbec7fe47 100644
--- a/tools/local-env/docker-compose.yml
+++ b/tools/local-env/docker-compose.yml
@@ -38,6 +38,7 @@ services:
 
     environment:
       LOCAL_PHP_XDEBUG: ${LOCAL_PHP_XDEBUG-false}
+      LOCAL_PHP_MEMCACHED: ${LOCAL_PHP_MEMCACHED-false}
 
     volumes:
       - ./php-config.ini:/usr/local/etc/php/conf.d/php-config.ini