Hi, It seems that ursa-labs/crossbow on travis-ci.com has been disabled since 2020-11-22:
https://travis-ci.com/github/ursa-labs/crossbow/builds > Builds have been temporarily disabled for public > repositories due to a negative credit balance. Please go > to the Plan page to replenish your credit balance or alter > your Consume paid credits for OSS setting. Could someone in Ursa Labs confirm this? Thanks, -- kou
