Merge branch 'update-log-fields' into 'master'

Update some logrus fields used in Runner logs

See merge request gitlab-org/gitlab-runner!1405

executors/docker/machine/provider.go

@@ -89,7 +89,7 @@ func (m *machineProvider) create(config *common.RunnerConfig, state machineState
 			details.State = state
 			details.Used = time.Now()
 			creationTime := time.Since(started)
-			logrus.WithField("time", creationTime).
+			logrus.WithField("duration", creationTime).
 				WithField("name", details.Name).
 				WithField("now", time.Now()).
 				WithField("retries", details.RetryCount).

network/gitlab.go

@@ -277,7 +277,7 @@ func (n *GitLabClient) RequestJob(config common.RunnerConfig, sessionInfo *commo
 	switch result {
 	case http.StatusCreated:
 		config.Log().WithFields(logrus.Fields{
-			"job":      strconv.Itoa(response.ID),
+			"job":      response.ID,
 			"repo_url": response.RepoCleanURL(),
 		}).Println("Checking for jobs...", "received")
 		addTLSData(&response, tlsData)