Веб-процессу Heroku не удалось привязаться к $PORT в течение 90 секунд после запуска

Мое приложение.свойства

spring.datasource.url=jdbc:mariadb://<IP>/<name>
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.show-sql=true
spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
server.port=${PORT:8080}

Мой профиль

web: java -Dserver.port=$PORT  -jar build/libs/restaurants-0.0.1- 
SNAPSHOT.jar

Ошибка

2019-03-22T11:23:47.741653+00:00 heroku[router]: at=error code=H20 desc = "App boot timeout" method=GET path = "/" host=restaurants-services.herokuapp.com request_id=91ae134c-60a0-4416-860c-b08b787e1be7 fwd = "49.206.10.184" dyno= connect= service= status=503 bytes= protocol=https
2019-03-22T11:24:17.230083+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 90 seconds of launch
2019-03-22T11:24:17.230261+00:00 heroku[web.1]: Stopping process with SIGKILL
2019-03-22T11:24:17.385809+00:00 heroku[web.1]: State changed from starting to crashed
2019-03-22T11:24:17.367612+00:00 heroku[web.1]: Process exited with status 137
2019-03-22T11:24:18.386285+00:00 heroku[router]: at=error code=H10 desc = "App crashed" method=GET path = "/" host=restaurants-services.herokuapp.com request_id=e3c2ccdd-2c62-4c56-aac6-0c5b36bbbe27 fwd = "49.206.10.184" dyno= connect= service= status=503 bytes= protocol=https
2019-03-22T11:24:19.423553+00:00 heroku[router]: at=error code=H10 desc = "App crashed" method=GET path = "/favicon.ico" host=restaurants-services.herokuapp.com request_id=f0e2e341-26c6-46b2-9f11-da129d752fba fwd = "49.206.10.184" dyno= connect= service= status=503 bytes= protocol=https