Bitbucket Server and "Failed to parse repository url"

Just upgraded to 2019.3 eager to try out the Bitbucket Server integration, and am receiving a "Failed to parse repository url". The URL is nothing unusual: in the form "https://bitbucket.example.com". I've verified that the youtrack instance can access bitbucket at that URL (using CURL)

Anyone encountering the same issue, or better, has some suggestions for a fix?

Here's what I see in youtrack's logs:

 06/02/20 08:25:11,797 ERROR [@tp793707613-343] [ErrorExceptionMapper          ] [ccogdon@XX.XX.XX.XX] Caught exception during request processing at 
POST /api/admin/integrations/vcsHostingProcessors requested by Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like G
ecko) Version/13.0.5 Safari/605.1.15
 java.lang.IllegalArgumentException: Failed to parse repository url
        at jetbrains.youtrack.integration.github.rest.bitbucketstandalone.BitbucketStandaloneChangesProcessor.parseUrl(BitbucketStandaloneChangesP
rocessor.kt:57)
        at jetbrains.youtrack.integration.github.rest.bitbucketstandalone.BitbucketStandaloneChangesProcessor.parseUrl(BitbucketStandaloneChangesP
rocessor.kt:22)
        at jetbrains.youtrack.integration.github.rest.VcsHostingChangesProcessor.updateFrom(VcsHostingChangesProcessor.kt:55)
        at jetbrains.youtrack.integration.github.rest.bitbucketstandalone.BitbucketStandaloneChangesProcessor.updateFrom(BitbucketStandaloneChange
sProcessor.kt:41)
...snip...