Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 mariadb-server-10.0 : Depends: mariadb-server-core-10.0 (>= 10.0.15+maria-1~trusty) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

 #-------------------------------------------------------------------------------
@@ -1921,9 +2029,10 @@
         command=["runvm", "--base-image=/kvm/vms/"+kvm_image+"-upgrade2.qcow2"] + args + ["--logfile=kernel_"+port+".log", "vm-tmp-"+port+".qcow2",
         "rm -Rf buildbot && mkdir buildbot",
         "= scp -r -P "+port+" "+kvm_scpopt+" debs buildbot@localhost:buildbot/",
-        "sudo rm -rf /tmp/VERSION",
+        "sudo rm -rf /tmp/VERSION /tmp/MAYBE_SERVER_CORE",
         WithProperties("sh -c \"echo '%(branch)s' | sed -e \\\"s/.*\\\\(5\\\\.[1-356]\\\\|10\\\\.0\\\\).*/\\\\1/\\\"\" > /tmp/VERSION"),
         WithProperties("case '%(branch)s' in *galera* | *5.5-hf* | 10.1) sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943
db ; sudo sh -c \"echo 'deb http://mirror2.hs-esslingen.de/mariadb/repo/$(cat /tmp/VERSION)/"+distro_name+" "+version_name+" main' > /etc/apt/sources.li
st.d/galera-test-repo.list\" ;; esac"),
+       "touch /tmp/MAYBE_SERVER_CORE; case $(cat /tmp/VERSION)-"+version_name+" in 10.0-trusty) echo mariadb-server-core-$(cat /tmp/VERSION) > /tmp/MAY
BE_SERVER_CORE ;; esac",
         WithProperties("""
 set -ex
 cd buildbot
@@ -1932,7 +2041,7 @@
 mysql -uroot -prootpass -e "use mytest; set global innodb_file_per_table=0; drop table if exists upgrade_test; create table upgrade_test (pk int primar
y key auto_increment, c char(64), v varchar(2048), d date, t time, dt datetime, ts timestamp) engine=InnoDB; begin; insert into upgrade_test values (nul
l, 'test', 'test', date(now()), time(now()), now(), now());  insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now(
) from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade
_test select null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(
now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now() from u
pgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test se
lect null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), 
time(now()), now(), now() from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_t
est; insert into upgrade_test select null, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test select nul
l, 'test', 'test', date(now()), time(now()), now(), now() from upgrade_test; insert into upgrade_test select null, 'test', 'test', date(now()), time(now
()), now(), now() from upgrade_test; commit" --force
 VER=$(echo '%(branch)s' | sed -e "s/.*\\\\(5\\\\.[1-356]\\\\|10\\\\.0\\\\).*/\\\\1/")
 GALERA=`case '%(branch)s' in *galera* | *5.5-hf*) echo galera- ;; esac`
-sudo sh -c "DEBIAN_FRONTEND=noninteractive MYSQLD_STARTUP_TIMEOUT=180 apt-get install --allow-unauthenticated -y mariadb-${GALERA}server mariadb-${GALE
RA}server-${VER} mariadb-${GALERA}test libmariadbclient-dev mysql-common"
+sudo sh -c "DEBIAN_FRONTEND=noninteractive MYSQLD_STARTUP_TIMEOUT=180 apt-get install --allow-unauthenticated -y mariadb-${GALERA}server mariadb-${GALE
RA}server-${VER} mariadb-${GALERA}test libmariadbclient-dev mysql-common $(cat /tmp/MAYBE_SERVER_CORE)"
 mysql -uroot -prootpass -e "use mytest; select * from t; select count(*) from upgrade_test"
 """),
         "! rm -f daemon.log; (sudo cat /var/log/daemon.log || sudo cat /var/log/syslog) >daemon.log",