Initial setup issue: Runner accepts job but doesn't build

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I'm setting up a RunnerDeployment in a GHE 3.5 instance for the first time. A runner is created, registered for a repository, and its status is Idle. The problem symptom is that when I trigger a hello world build, the runner appears to accept the job, but then no activity occurs, and after 5 minutes the runner is killed and a new one is created.

From the GHE Actions perspective, a log example is:

Requested labels: Linux
Job defined at: sample-org/sample-repo/.github/workflows/shell.yml@refs/heads/main
Waiting for a runner to pick up this job...
Job is about to start running on the runner: repo-runner-trzcm-gwc89 (repository)

Runner log example:

> stern repo-runner-trzcm-ft2w2
+ repo-runner-trzcm-ft2w2 › runner
+ repo-runner-trzcm-ft2w2 › docker
repo-runner-trzcm-ft2w2 docker Generating RSA private key, 4096 bit long modulus (2 primes)
repo-runner-trzcm-ft2w2 docker .......................................................................................................................++++
repo-runner-trzcm-ft2w2 docker .....++++
repo-runner-trzcm-ft2w2 docker e is 65537 (0x010001)
repo-runner-trzcm-ft2w2 docker Generating RSA private key, 4096 bit long modulus (2 primes)
repo-runner-trzcm-ft2w2 docker ........++++
repo-runner-trzcm-ft2w2 docker ...............................................................++++
repo-runner-trzcm-ft2w2 docker e is 65537 (0x010001)
repo-runner-trzcm-ft2w2 docker Signature ok
repo-runner-trzcm-ft2w2 docker subject=CN = docker:dind server
repo-runner-trzcm-ft2w2 docker Getting CA Private Key
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:00.737  NOTICE --- Delaying startup by 2 seconds
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:02.742  DEBUG --- Github endpoint URL https://devgit.myco.com/
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:03.801  DEBUG --- Passing --ephemeral to config.sh to enable the ephemeral runner.
repo-runner-trzcm-ft2w2 docker /certs/server/cert.pem: OK
repo-runner-trzcm-ft2w2 docker Generating RSA private key, 4096 bit long modulus (2 primes)
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:03.804  DEBUG --- Passing --disableupdate to config.sh to disable automatic runner updates.
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:03.810  DEBUG --- Configuring the runner.
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker .....................................................++++
repo-runner-trzcm-ft2w2 runner --------------------------------------------------------------------------------
repo-runner-trzcm-ft2w2 runner |        ____ _ _   _   _       _          _        _   _                      |
repo-runner-trzcm-ft2w2 docker ........................................................................................................++++
repo-runner-trzcm-ft2w2 docker e is 65537 (0x010001)
repo-runner-trzcm-ft2w2 runner |       / ___(_) |_| | | |_   _| |__      / \   ___| |_(_) ___  _ __  ___      |
repo-runner-trzcm-ft2w2 docker Signature ok
repo-runner-trzcm-ft2w2 runner |      | |  _| | __| |_| | | | | '_ \    / _ \ / __| __| |/ _ \| '_ \/ __|     |
repo-runner-trzcm-ft2w2 runner |      | |_| | | |_|  _  | |_| | |_) |  / ___ \ (__| |_| | (_) | | | \__ \     |
repo-runner-trzcm-ft2w2 docker subject=CN = docker:dind client
repo-runner-trzcm-ft2w2 runner |       \____|_|\__|_| |_|\__,_|_.__/  /_/   \_\___|\__|_|\___/|_| |_|___/     |
repo-runner-trzcm-ft2w2 docker Getting CA Private Key
repo-runner-trzcm-ft2w2 runner |                                                                              |
repo-runner-trzcm-ft2w2 docker /certs/client/cert.pem: OK
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.667893036Z" level=info msg="Starting up"
repo-runner-trzcm-ft2w2 runner |                       Self-hosted runner registration                        |
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.670556481Z" level=warning msg="could not change group /var/run/docker.sock to docker: group docker not found"
repo-runner-trzcm-ft2w2 runner |                                                                              |
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.672332210Z" level=info msg="libcontainerd: started new containerd process" pid=90
repo-runner-trzcm-ft2w2 runner --------------------------------------------------------------------------------
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.672376602Z" level=info msg="parsed scheme: \"unix\"" module=grpc
repo-runner-trzcm-ft2w2 runner # Authentication
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.672387747Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.672407977Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///var/run/docker/containerd/containerd.sock  <nil> 0 <nil>}] <nil> <nil>}" module=grpc
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 runner √ Connected to GitHub
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.672422414Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02Z" level=warning msg="containerd config version `1` has been deprecated and will be removed in containerd v2.0, please switch to version `2`, see https://github.com/containerd/containerd/blob/main/docs/PLUGINS.md#version-header"
repo-runner-trzcm-ft2w2 runner # Runner Registration
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.699941915Z" level=info msg="starting containerd" revision=10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1 version=v1.6.6
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.719325828Z" level=info msg="loading plugin \"io.containerd.content.v1.content\"..." type=io.containerd.content.v1
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 runner √ Runner successfully added
repo-runner-trzcm-ft2w2 runner √ Runner connection is good
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.719650127Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.aufs\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 runner # Runner settings
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729312039Z" level=info msg="skip loading plugin \"io.containerd.snapshotter.v1.aufs\"..." error="aufs is not supported (modprobe aufs failed: exit status 1 \"ip: can't find device 'aufs'\\nmodprobe: can't change directory to '/lib/modules': No such file or directory\\n\"): skip plugin" type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729348305Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.btrfs\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729644639Z" level=info msg="skip loading plugin \"io.containerd.snapshotter.v1.btrfs\"..." error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs (xfs) must be a btrfs filesystem to be used with the btrfs snapshotter: skip plugin" type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 runner √ Settings Saved.
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729674433Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.devmapper\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729690515Z" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.devmapper" error="devmapper not configured"
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:07.470  DEBUG --- Runner successfully configured.
repo-runner-trzcm-ft2w2 runner {
repo-runner-trzcm-ft2w2 runner   "isHostedServer": false,
repo-runner-trzcm-ft2w2 runner   "agentId": 4,
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729705702Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.native\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 runner   "agentName": "repo-runner-trzcm-ft2w2",
repo-runner-trzcm-ft2w2 runner   "poolId": 1,
repo-runner-trzcm-ft2w2 runner   "poolName": "Default",
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.729942336Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.overlayfs\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.730376871Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.zfs\"..." type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 runner   "disableUpdate": true,
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.730573578Z" level=info msg="skip loading plugin \"io.containerd.snapshotter.v1.zfs\"..." error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.zfs must be a zfs filesystem to be used with the zfs snapshotter: skip plugin" type=io.containerd.snapshotter.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.730597094Z" level=info msg="loading plugin \"io.containerd.metadata.v1.bolt\"..." type=io.containerd.metadata.v1
repo-runner-trzcm-ft2w2 runner   "ephemeral": true,
repo-runner-trzcm-ft2w2 runner   "serverUrl": "https://devgit.myco.com/_services/pipelines/RkVPA7Wp0hohF8uhEzDKarG2rkuSywDMZ0tM1FyjqG6myXqvNq",
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.730792405Z" level=warning msg="could not use snapshotter devmapper in metadata plugin" error="devmapper not configured"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.730810236Z" level=info msg="metadata content store policy set" policy=shared
repo-runner-trzcm-ft2w2 runner   "gitHubUrl": "https://devgit.myco.com/test-org/test-repo",
repo-runner-trzcm-ft2w2 runner   "workFolder": "/runner/_work"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732381572Z" level=info msg="loading plugin \"io.containerd.differ.v1.walking\"..." type=io.containerd.differ.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732416665Z" level=info msg="loading plugin \"io.containerd.event.v1.exchange\"..." type=io.containerd.event.v1
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:07.480  NOTICE --- Docker wait check skipped. Either Docker is disabled or the wait is disabled, continuing with entrypoint
repo-runner-trzcm-ft2w2 runner }
repo-runner-trzcm-ft2w2 runner √ Connected to GitHub
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732433587Z" level=info msg="loading plugin \"io.containerd.gc.v1.scheduler\"..." type=io.containerd.gc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732487168Z" level=info msg="loading plugin \"io.containerd.service.v1.introspection-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 runner
repo-runner-trzcm-ft2w2 runner Current runner version: '2.295.0'
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:58:09Z: Listening for Jobs
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732506840Z" level=info msg="loading plugin \"io.containerd.service.v1.containers-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732529068Z" level=info msg="loading plugin \"io.containerd.service.v1.content-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732549303Z" level=info msg="loading plugin \"io.containerd.service.v1.diff-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732564610Z" level=info msg="loading plugin \"io.containerd.service.v1.images-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732925148Z" level=info msg="loading plugin \"io.containerd.service.v1.leases-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.732976416Z" level=info msg="loading plugin \"io.containerd.service.v1.namespaces-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.733002032Z" level=info msg="loading plugin \"io.containerd.service.v1.snapshots-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.733031904Z" level=info msg="loading plugin \"io.containerd.runtime.v1.linux\"..." type=io.containerd.runtime.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.733375192Z" level=info msg="loading plugin \"io.containerd.runtime.v2.task\"..." type=io.containerd.runtime.v2
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.733693959Z" level=info msg="loading plugin \"io.containerd.monitor.v1.cgroups\"..." type=io.containerd.monitor.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734186186Z" level=info msg="loading plugin \"io.containerd.service.v1.tasks-service\"..." type=io.containerd.service.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734243844Z" level=info msg="loading plugin \"io.containerd.grpc.v1.introspection\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734263703Z" level=info msg="loading plugin \"io.containerd.internal.v1.restart\"..." type=io.containerd.internal.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734336968Z" level=info msg="loading plugin \"io.containerd.grpc.v1.containers\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734354112Z" level=info msg="loading plugin \"io.containerd.grpc.v1.content\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734369548Z" level=info msg="loading plugin \"io.containerd.grpc.v1.diff\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734387202Z" level=info msg="loading plugin \"io.containerd.grpc.v1.events\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734404000Z" level=info msg="loading plugin \"io.containerd.grpc.v1.healthcheck\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734420047Z" level=info msg="loading plugin \"io.containerd.grpc.v1.images\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734435077Z" level=info msg="loading plugin \"io.containerd.grpc.v1.leases\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734448198Z" level=info msg="loading plugin \"io.containerd.grpc.v1.namespaces\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.734467609Z" level=info msg="loading plugin \"io.containerd.internal.v1.opt\"..." type=io.containerd.internal.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735099998Z" level=info msg="loading plugin \"io.containerd.grpc.v1.snapshots\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735127400Z" level=info msg="loading plugin \"io.containerd.grpc.v1.tasks\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735141602Z" level=info msg="loading plugin \"io.containerd.grpc.v1.version\"..." type=io.containerd.grpc.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735157618Z" level=info msg="loading plugin \"io.containerd.tracing.processor.v1.otlp\"..." type=io.containerd.tracing.processor.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735172744Z" level=info msg="skip loading plugin \"io.containerd.tracing.processor.v1.otlp\"..." error="no OpenTelemetry endpoint: skip plugin" type=io.containerd.tracing.processor.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735189689Z" level=info msg="loading plugin \"io.containerd.internal.v1.tracing\"..." type=io.containerd.internal.v1
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735211860Z" level=error msg="failed to initialize a tracing processor \"otlp\"" error="no OpenTelemetry endpoint: skip plugin"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735546296Z" level=info msg=serving... address=/var/run/docker/containerd/containerd-debug.sock
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735652434Z" level=info msg=serving... address=/var/run/docker/containerd/containerd.sock.ttrpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735740841Z" level=info msg=serving... address=/var/run/docker/containerd/containerd.sock
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.735764554Z" level=info msg="containerd successfully booted in 0.037283s"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.747458737Z" level=info msg="parsed scheme: \"unix\"" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.747491570Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.747517991Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///var/run/docker/containerd/containerd.sock  <nil> 0 <nil>}] <nil> <nil>}" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.747536689Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.749325506Z" level=info msg="parsed scheme: \"unix\"" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.749362998Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.749389534Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///var/run/docker/containerd/containerd.sock  <nil> 0 <nil>}] <nil> <nil>}" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.749400818Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.761075030Z" level=warning msg="Your kernel does not support cgroup blkio weight"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.761107258Z" level=warning msg="Your kernel does not support cgroup blkio weight_device"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.761315519Z" level=info msg="Loading containers: start."
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.820064036Z" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.854889850Z" level=info msg="Loading containers: done."
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.868710287Z" level=info msg="Docker daemon" commit=a89b842 graphdriver(s)=overlay2 version=20.10.17
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.868985317Z" level=info msg="Daemon has completed initialization"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.889557879Z" level=info msg="API listen on /var/run/docker.sock"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T20:58:02.898683125Z" level=info msg="API listen on [::]:2376"
repo-runner-trzcm-ft2w2 runner 2022-08-12 20:59:50Z: Running job: build

#
# ...and then 5 minutes later...
#

repo-runner-trzcm-ft2w2 runner /runner/run-helper.sh: line 22:   103 Killed                  "$DIR"/bin/Runner.Listener run $*
repo-runner-trzcm-ft2w2 runner Exiting with unknown error code: 137
repo-runner-trzcm-ft2w2 runner Exiting runner...
- repo-runner-trzcm-ft2w2 › runner
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:24.362109175Z" level=info msg="Processing signal 'terminated'"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:24.364294084Z" level=info msg="stopping event stream following graceful shutdown" error="<nil>" module=libcontainerd namespace=moby
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:24.364784341Z" level=info msg="Daemon shutdown complete"
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:24.364791800Z" level=info msg="stopping healthcheck following graceful shutdown" module=libcontainerd
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:24.364832946Z" level=info msg="stopping event stream following graceful shutdown" error="context canceled" module=libcontainerd namespace=plugins.moby
repo-runner-trzcm-ft2w2 docker time="2022-08-12T21:03:25.365527723Z" level=warning msg="grpc: addrConn.createTransport failed to connect to {unix:///var/run/docker/containerd/containerd.sock  <nil> 0 <nil>}. Err :connection error: desc = \"transport: Error while dialing dial unix:///var/run/docker/containerd/containerd.sock: timeout\". Reconnecting..." module=grpc

Any suggestions on what could be wrong or how to debug this? Thanks.

[toast-gear]

repo-runner-trzcm-ft2w2 runner /runner/run-helper.sh: line 22:   103 Killed                  
"$DIR"/bin/Runner.Listener run $*

run-helper.sh is actions/runner code, in the latest release v2.295.0 they made changes to that script. This is most likely a bug in GitHub's runner software. Try using the previous runner version with runner updates disabled and see if the problem persists https://github.com/actions-runner-controller/actions-runner-controller#runner-entrypoint-features. If problem goes away you need to raise an issue in GitHub's actions/runner repository.