Add -o PubkeyAcceptedKeyTypes=ssh-dss and fix path

Author: vladbogo

master-bintars/master.cfg

@@ -119,7 +119,7 @@ def memory_def():
 
 
 gccWarningPattern = "^(.*?):([0-9]+):(?:[0-9]+:)? [Ww]arning: (.*)$"
-kvm_scpopt = "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
+kvm_scpopt = "-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o PubkeyAcceptedKeyTypes=ssh-dss"
 
 
 def ScpSourceIntoVM(port):
@@ -190,7 +190,7 @@ def getBintarBuilder(
                 "rm -Rf buildbot && mkdir buildbot",
                 ScpSourceIntoVM(port),
                 util.Interpolate(
-                    "tar -xvzf %(prop:tarbuildnum)s_%(prop:mariadb_version)s.tar.gz --strip-components=1"
+                    "cd buildbot && tar -xvzf %(prop:tarbuildnum)s_%(prop:mariadb_version)s.tar.gz --strip-components=1 && rm %(prop:tarbuildnum)s_%(prop:mariadb_version)s.tar.gz"
                 ),
                 util.Interpolate(
                     """