Eclipse git client won't push to smart mirror

[John Lawlor]

I can clone from Bitbucket mirror, but I can't push to it. We are seeing the following error:

We are running Bitbucket 6.5.0. If I do the same thing from the command line, it works ok.

Seeing this error in the logs, not sure if it's related:

2019-08-06 11:34:43,217 INFO [ssh-auth] c.a.b.i.m.m.a.c.BaseCachingAuthenticator https://bitbucket.<edited out>.com: exception occurred while performing authentication. Attempting to recover with fallback cache
com.atlassian.bitbucket.internal.mirroring.mirror.UpstreamRequestFailedException: A request to the configured upstream server failed (Reason: 'org.apache.http.ConnectionClosedException: Connection closed')
at com.atlassian.bitbucket.internal.mirroring.mirror.client.AbstractUpstreamClient.ensureIsRequestFailedOrAuthException(AbstractUpstreamClient.java:193)
at io.atlassian.util.concurrent.Promises.lambda$biFunction$7(Promises.java:424)
at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:822)
at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:797)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
at com.atlassian.httpclient.apache.httpcomponents.SettableFuturePromiseHttpPromiseAsyncClient$1.lambda$doFailed$1(SettableFuturePromiseHttpPromiseAsyncClient.java:42)
at com.atlassian.httpclient.apache.httpcomponents.SettableFuturePromiseHttpPromiseAsyncClient.runInContext(SettableFuturePromiseHttpPromiseAsyncClient.java:61)
at com.atlassian.httpclient.apache.httpcomponents.SettableFuturePromiseHttpPromiseAsyncClient$ThreadLocalDelegateRunnable.run(SettableFuturePromiseHttpPromiseAsyncClient.java:129)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.lang.Thread.run(Thread.java:748)
... 1 frame trimmed