I'll bet I'm not the only one, but I've Googled a bunch and can't quite find the solution.
I've been using–and can still use by manually pushing or through the Xcode git interface–Bitbucket. I have an account with a username that is not my email.
I created an Atlassian account with a username that is my email.
If I try to log in to my Bitbucket account through the web interface at https://bitbucket.org/account/signin/, I get the error, "You must use your email address when authenticating with your Atlassian account."
If I then log in with my Atlassian account email and password, it says, "Success! Almost done. Please choose a username for your Bitbucket account." If I then enter my Bitbucket username it says "that username already exists."
How can I access my existing Bitbucket account?