The following tests failed in the JDK16 CI:

containers/docker/TestMisc.java
containers/docker/TestMemoryAwareness.java
containers/docker/TestJFRWithJMX.java
containers/docker/TestJFRNetworkEvents.java
containers/docker/TestJFREvents.java
containers/docker/TestJcmdWithSideCar.java
containers/docker/TestCPUSets.java
containers/docker/TestCPUAwareness.java
containers/docker/DockerBasicTest.java

Here's a snippet from the TestMisc.java log file:

========== NEW TEST CASE: Test related flags: '-UseContainerSupport'
[COMMAND]
docker run --tty=true --rm jdk-internal:test-misc /jdk/bin/java -XX:-UseContainerSupport -Xlog:os+container=trace -XX:MaxRAMPercentage=6 -Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/47535081-0322-4d83-bb78-f7e11abb86d0-S42550/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/6c4a3117-4d53-45da-ad8e-07b22a1048bc/runs/351f934f-45e4-42de-882b-3ea00ae61ca1/testoutput/test-support/jtreg_open_test_hotspot_jtreg_containers/tmp -Djdk.test.docker.image.name=jpg-data.us.oracle.com:9001/library/oraclelinux -Djdk.test.docker.image.version=7.6 -version
[2020-11-04T20:09:41.118802316Z] Gathering output for process 26480
[ELAPSED: 4 ms]
[STDERR]
Unable to find image 'jdk-internal:test-misc' locally
Trying to pull repository jpg-data.us.oracle.com:9002/jdk-internal ...
manifest for jpg-data.us.oracle.com:9002/jdk-internal:test-misc not found: manifest unknown: The named manifest is not known to the registry.
docker: manifest for jpg-data.us.oracle.com:9002/jdk-internal:test-misc not found: manifest unknown: The named manifest is not known to the registry.
See 'docker run --help'.

Here's a snippet from the TestMemoryAwareness.java log file:

========= NEW TEST CASE: memory limit: 100m
[COMMAND]
docker run --tty=true --rm --memory 100m jdk-internal:test-memory /jdk/bin/java -Xlog:os+container=trace -XX:MaxRAMPercentage=6 -Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/47535081-0322-4d83-bb78-f7e11abb86d0-S42550/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/6c4a3117-4d53-45da-ad8e-07b22a1048bc/runs/351f934f-45e4-42de-882b-3ea00ae61ca1/testoutput/test-support/jtreg_open_test_hotspot_jtreg_containers/tmp -Djdk.test.docker.image.name=jpg-data.us.oracle.com:9001/library/oraclelinux -Djdk.test.docker.image.version=7.6 -version
[2020-11-04T20:09:16.133720392Z] Gathering output for process 26152
[ELAPSED: 3 ms]
[STDERR]
Unable to find image 'jdk-internal:test-memory' locally
Trying to pull repository jpg-data.us.oracle.com:9002/jdk-internal ...
manifest for jpg-data.us.oracle.com:9002/jdk-internal:test-memory not found: manifest unknown: The named manifest is not known to the registry.
docker: manifest for jpg-data.us.oracle.com:9002/jdk-internal:test-memory not found: manifest unknown: The named manifest is not known to the registry.
See 'docker run --help'.