$ go test -v -exec sudo -test.kill-daemon -run TestRunRestart
test target: "nerdctl"
=== RUN   TestRunRestart
    run_restart_test.go:44: NOTE: this test may take a while
    run_restart_test.go:71: killing "containerd.service"
    run_restart_test.go:72: checking activity of "containerd.service"
    run_restart_test.go:72: (retry=0) activating
    run_restart_test.go:72: (retry=1) activating
    run_restart_test.go:72: (retry=2) active
    run_restart_test.go:72: daemon "containerd.service" is now running
    run_restart_test.go:79: (retry 0) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED          STATUS     PORTS                     NAMES\n46ba66a9a3a5    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    6 seconds ago    Created    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:79: (retry 1) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED          STATUS     PORTS                     NAMES\n46ba66a9a3a5    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    9 seconds ago    Created    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:79: (retry 2) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED           STATUS     PORTS                     NAMES\n46ba66a9a3a5    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    12 seconds ago    Created    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:79: (retry 3) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED           STATUS     PORTS                     NAMES\n46ba66a9a3a5    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    15 seconds ago    Created    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:79: (retry 4) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED           STATUS     PORTS                     NAMES\n46ba66a9a3a5    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    18 seconds ago    Running    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:82: test is passing, after 4 retries
--- PASS: TestRunRestart (19.17s)
PASS
ok      github.com/AkihiroSuda/nerdctl  19.189s

$ go test -v -exec sudo -test.kill-daemon -run TestRunRestart
test target: "nerdctl"
=== RUN   TestRunRestart
    run_restart_test.go:44: NOTE: this test may take a while
    run_restart_test.go:71: killing "containerd.service"
    run_restart_test.go:72: checking activity of "containerd.service"
    run_restart_test.go:72: (retry=0) activating
    run_restart_test.go:72: (retry=1) activating
    run_restart_test.go:72: (retry=2) active
    run_restart_test.go:72: daemon "containerd.service" is now running
    run_restart_test.go:79: (retry 0) ps -a: "CONTAINER ID    IMAGE                                      COMMAND                   CREATED          STATUS     PORTS                     NAMES\n51486603cd31    mirror.gcr.io/library/nginx:1.19-alpine    \"/docker-entrypoint.…\"    6 seconds ago    Running    127.0.0.1:8080->80/tcp    nerdctl-test-restart-nginx\n"
    run_restart_test.go:82: test is passing, after 0 retries
--- PASS: TestRunRestart (6.71s)
PASS
ok      github.com/AkihiroSuda/nerdctl  6.731s