IncrementalPinger fails with Mercurial (Hg) 2.1

2012-02-13 20:44:16,584 DEBUG [IncrementalPinger1 catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: Contacting repository.
2012-02-13 20:44:16,585 DEBUG [IncrementalPinger1 catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: Getting updates from https://bitbucket.org/rene/fsh5798/
2012-02-13 20:44:16,585 DEBUG [IncrementalPinger1 catch21] fisheye.app LoggingProcessMonitor-onBeforeStart - Starting process: hg --config ui.verbose=false pull https://bitbucket.org/rene/fsh5798/ 
2012-02-13 20:44:17,525 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)
2012-02-13 20:44:18,184 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: pulling from https://bitbucket.org/rene/fsh5798/
2012-02-13 20:44:18,184 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)
2012-02-13 20:44:18,862 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: searching for changes
2012-02-13 20:44:18,863 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: no changes found
2012-02-13 20:44:18,862 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)
2012-02-13 20:44:19,560 DEBUG [ExtProcess IO Pump catch21] fisheye.app RepositoryStatus-setMessage - Status change [catch21]: warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)
2012-02-13 20:44:19,721 DEBUG [IncrementalPinger1 catch21] fisheye.app LoggingProcessMonitor-onAfterFinished - Finished process: hg --config ui.verbose=false pull https://bitbucket.org/rene/fsh5798/  took 3135ms
2012-02-13 20:44:19,722 INFO  [IncrementalPinger1 catch21] fisheye.app LoggingProcessMonitor-onAfterFinished - Exception executing command "hg --config ui.verbose=false pull https://bitbucket.org/rene/fsh5798/ " Non-zero exit code: 1
com.atlassian.utils.process.ProcessException: Non-zero exit code: 1

2012-02-13 20:44:19,726 DEBUG [IncrementalPinger1 catch21] fisheye.app RepositoryStatus-setEngineError - Engine Error Set [catch21]: Unable to pull from remote repository: https://bitbucket.org/rene/fsh5798/
 - [warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)]
 - pulling from https://bitbucket.org/rene/fsh5798/
searching for changes
no changes found
2012-02-13 20:44:19,727 ERROR [IncrementalPinger1 ] fisheye.app OneOffPingRequest-doRequest - Exception during slurp
com.cenqua.fisheye.config.ConfigException: Unable to pull from remote repository: https://bitbucket.org/rene/fsh5798/
 - [warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting), warning: bitbucket.org certificate with fingerprint 24:9c:45:8b:9c:aa:ba:55:4e:01:6d:58:ff:e4:28:7d:2a:14:ae:3b not verified (check hostfingerprints or web.cacerts config setting)]
 - pulling from https://bitbucket.org/rene/fsh5798/
searching for changes
no changes found
	at com.atlassian.fisheye.hg.HgScanner.fetchLatest(HgScanner.java:155)
	at com.atlassian.fisheye.dvcs.DvcsScanner.updateClone(DvcsScanner.java:158)
	at com.atlassian.fisheye.dvcs.DvcsScanner.updateLocalRepoCache(DvcsScanner.java:145)
	at com.cenqua.fisheye.rep.BaseRepositoryScanner.ping(BaseRepositoryScanner.java:179)
	at com.cenqua.fisheye.rep.BaseRepositoryEngine.doSlurp(BaseRepositoryEngine.java:92)
	at com.cenqua.fisheye.rep.RepositoryEngine.slurp(RepositoryEngine.java:379)
	at com.cenqua.fisheye.rep.ping.OneOffPingRequest.doRequest(OneOffPingRequest.java:28)
	at com.cenqua.fisheye.rep.ping.PingRequest.process(PingRequest.java:67)
	at com.cenqua.fisheye.rep.RepositoryHandle.processPingRequests(RepositoryHandle.java:138)
	at com.cenqua.fisheye.rep.RepositoryHandle.queuePingRequest(RepositoryHandle.java:128)
	at com.cenqua.fisheye.rep.ping.PingRequest.run(PingRequest.java:33)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:680)
Caused by: com.atlassian.utils.process.ProcessException: While executing: "hg --config ui.verbose=false pull https://bitbucket.org/rene/fsh5798/ "
	at com.atlassian.fisheye.dvcs.client.DvcsContext.executeCommand(DvcsContext.java:262)
	at com.atlassian.fisheye.dvcs.client.DvcsContext.executeCommand(DvcsContext.java:254)
	at com.atlassian.fisheye.hg.HgScanner.fetchLatest(HgScanner.java:149)
	... 13 more
Caused by: com.atlassian.utils.process.ProcessException: Non-zero exit code: 1
	at com.atlassian.utils.process.PluggableProcessHandler.complete(PluggableProcessHandler.java:83)
	at com.atlassian.utils.process.ExternalProcessImpl.finish(ExternalProcessImpl.java:308)
	at com.atlassian.utils.process.ExternalProcessImpl.execute(ExternalProcessImpl.java:351)
	at com.atlassian.fisheye.dvcs.client.DvcsContext.executeCommand(DvcsContext.java:259)
	... 15 more