のBitbucket has changed the way team accounts work(強調鉱山):
Starting February 18, 2014, Bitbucket will remove the ability for individuals to log into a team with a username/email and password. We are taking this action so that we can bring you Atlassian ID later this year. Atlassian ID is single sign-on across all our OnDemand services such as Bitbucket, JIRA, HipChat and Confluence, one of the most popular feature requests on Bitbucket!
溶液はまた、そのページに記載されています:
If you login to your team with a username and password, you will need to appoint or create an administrator for your team. We’ve added a warning banner to your account which will walk you through this process. You will also receive an email with instructions on what to do next.
2014年2月18日が実際にはかなり前だったのは事実ですが、it looks like this change may not actually have taken effect until recentlyです。