milo: fix step duration

appengine/cmd/milo/swarming/build.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package swarming
 
 import (
         "bytes"
         "encoding/json"
         "fmt"
@@ skipping 284 matching lines @@
         }
         build.Summary.Duration = uint64(sr.Duration)
 }
 
 // Takes in an annotated log and returns a fully populated set of logdog streams
 func streamsFromAnnotatedLog(ctx context.Context, log []byte) (*logdog.Streams, error) {
         c := &memoryClient{}
         p := annotee.New(ctx, annotee.Options{
                 Client:                 c,
                 MetadataUpdateInterval: -1, // Neverrrrrr send incr updates.
+                Offline:                true,
         })
         defer p.Finish()
 
         is := annotee.Stream{
                 Reader:           bytes.NewBuffer(log),
                 Name:             types.StreamName("stdout"),
                 Annotate:         true,
                 StripAnnotations: true,
         }
         // If this ever has more than one stream then memoryClient needs to become
@@ skipping 45 matching lines @@
                 logdog.AddLogDogToBuild(c, URL, lds, build)
         }
 
         return build, nil
 }
 
 // taskPageURL returns a URL to a human-consumable page of a swarming task.
 func taskPageURL(swarmingHostname, taskID string) string {
         return fmt.Sprintf("https://%s/user/task/%s", swarmingHostname, taskID)
 }