There error you saw:
“This is PostgreSQL v x.y.z. Your database was created by version x.y-1.z, so we can’t read it and you’ll have to migrate it manually
is because you ran postgresql as a container and tried to bump the version in the docker-compose version. (Of course I’m just guessing here but this I have seen this exact error when people (might have been me… I woudn’t recall..) tried to bump the version in the compose file 
)
It is generally a very bad idea to run postgres (or any DB in a container). For dev and test we do this but production systems should not have the DB in a container.
