logins do not work

[Woolton]

I've used the provided docker-compose

icecast:
  image: moul/icecast
  volumes:
  - logs:/var/log/icecast2
  - /etc/localtime:/etc/localtime:ro
  environment:
  - ICECAST_SOURCE_PASSWORD=aaa
  - ICECAST_ADMIN_PASSWORD=bbb
  - ICECAST_PASSWORD=ccc
  - ICECAST_RELAY_PASSWORD=ddd
  ports:
  - 8000:8000

so I've set the password, go to admin panel username "admin" password "bbb", doesnt work. There appears to be no username var.