Filed by: ncsoregi [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=276082487&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/dj1bJHchTz-bORlU8tnQLQ/runs/1/artifacts/public/logs/live_backing.log

[task 2019-11-13T22:25:55.751Z] 22:25:55 INFO - TEST-START | netwerk/test/unit/test_alt-data_closeWithStatus.js
[task 2019-11-13T22:25:56.271Z] 22:25:56 WARNING - TEST-UNEXPECTED-FAIL | netwerk/test/unit/test_alt-data_closeWithStatus.js | xpcshell return code: 0
[task 2019-11-13T22:25:56.272Z] 22:25:56 INFO - TEST-INFO took 518ms
[task 2019-11-13T22:25:56.272Z] 22:25:56 INFO - >>>>>>>
[task 2019-11-13T22:25:56.272Z] 22:25:56 INFO - netwerk/test/unit/test_alt-data_closeWithStatus.js | xpcw: cd /sdcard/tests/xpc/netwerk/test/unit
[task 2019-11-13T22:25:56.274Z] 22:25:56 INFO - netwerk/test/unit/test_alt-data_closeWithStatus.js | xpcw: xpcshell -r /sdcard/tests/xpc/c/httpd.manifest --greomni /data/local/xpcb/geckoview-androidTest.apk -m -s -e const _HEAD_JS_PATH = "/sdcard/tests/xpc/head.js"; -e const _MOZINFO_JS_PATH = "/sdcard/tests/xpc/p/mozinfo.json"; -e const _PREFS_FILE = "/sdcard/tests/xpc/user.js"; -e const _TESTING_MODULES_DIR = "/sdcard/tests/xpc/m"; -f /sdcard/tests/xpc/head.js -e const _HEAD_FILES = ["/sdcard/tests/xpc/netwerk/test/unit/head_channels.js", "/sdcard/tests/xpc/netwerk/test/unit/head_cache.js", "/sdcard/tests/xpc/netwerk/test/unit/head_cache2.js", "/sdcard/tests/xpc/netwerk/test/unit/head_cookies.js"]; -e const _JSDEBUGGER_PORT = 0; -e const _TEST_FILE = ["test_alt-data_closeWithStatus.js"]; -e const _TEST_NAME = "netwerk/test/unit/test_alt-data_closeWithStatus.js"; -e _execute_test(); quit(0);
[task 2019-11-13T22:25:56.275Z] 22:25:56 INFO - (xpcshell/head.js) | test MAIN run_test pending (1)
[task 2019-11-13T22:25:56.275Z] 22:25:56 INFO - (xpcshell/head.js) | test pending (2)
[task 2019-11-13T22:25:56.276Z] 22:25:56 INFO - (xpcshell/head.js) | test MAIN run_test finished (2)
[task 2019-11-13T22:25:56.276Z] 22:25:56 INFO - running event loop
[task 2019-11-13T22:25:56.277Z] 22:25:56 INFO - TEST-PASS | netwerk/test/unit/test_alt-data_closeWithStatus.js | undefined assertion name - 13 == 13
[task 2019-11-13T22:25:56.278Z] 22:25:56 INFO - TEST-PASS | netwerk/test/unit/test_alt-data_closeWithStatus.js | readServerContent - [readServerContent : 108] "response body" == "response body"
[task 2019-11-13T22:25:56.278Z] 22:25:56 INFO - TEST-PASS | netwerk/test/unit/test_alt-data_closeWithStatus.js | readServerContent - [readServerContent : 109] "" == ""
[task 2019-11-13T22:25:56.279Z] 22:25:56 INFO - Error in closure function: [Exception... "Component returned failure code: 0x804b003d (NS_ERROR_CACHE_KEY_NOT_FOUND) [nsICacheStorage.getCacheIndexEntryAttrs]" nsresult: "0x804b003d (NS_ERROR_CACHE_KEY_NOT_FOUND)" location: "JS frame :: test_alt-data_closeWithStatus.js :: check_has_alt_data_in_index :: line 77" data: no]
[task 2019-11-13T22:25:56.280Z] 22:25:56 INFO - /sdcard/tests/xpc/netwerk/test/unit/head_channels.js:onStopRequest:238
[task 2019-11-13T22:25:56.280Z] 22:25:56 INFO - /sdcard/tests/xpc/head.js:_do_main:246
[task 2019-11-13T22:25:56.281Z] 22:25:56 INFO - /sdcard/tests/xpc/head.js:_execute_test:573
[task 2019-11-13T22:25:56.281Z] 22:25:56 INFO - -e:null:1
[task 2019-11-13T22:25:56.282Z] 22:25:56 INFO - exiting test
[task 2019-11-13T22:25:56.282Z] 22:25:56 INFO - "CONSOLE_MESSAGE: (error) [JavaScript Error: "NS_ERROR_ABORT: " {file: "/sdcard/tests/xpc/head.js" line: 791}]"
[task 2019-11-13T22:25:56.283Z] 22:25:56 INFO - netwerk/test/unit/test_alt-data_closeWithStatus.js | JavaScript error: /sdcard/tests/xpc/head.js, line 791: NS_ERROR_ABORT:
[task 2019-11-13T22:25:56.283Z] 22:25:56 INFO - netwerk/test/unit/test_alt-data_closeWithStatus.js | !!! error running onStopped callback: TypeError: callback is not a function
[task 2019-11-13T22:25:56.284Z] 22:25:56 INFO - "CONSOLE_MESSAGE: (warn) [JavaScript Warning: "ReferenceError: reference to undefined property "_stopCallback"" {file: "resource://testing-common/httpd.js" line: 819}]"
[task 2019-11-13T22:25:56.285Z] 22:25:56 INFO - netwerk/test/unit/test_alt-data_closeWithStatus.js | JavaScript strict warning: resource://testing-common/httpd.js, line 819: ReferenceError: reference to undefined property "_stopCallback"
[task 2019-11-13T22:25:56.285Z] 22:25:56 INFO - <<<<<<<

Valentin, can you take a look?

It seems to be caused by bug 1594004.
I also see failures of netwerk/test/unit/test_alt-data_simple.js on autoland after that landed.

Marking as WORKSFORME since that got backed out. Bug 1594004 should either fix the tests or set the pref accordingly.

New occurrence: https://treeherder.mozilla.org/logviewer.html#/jobs?job_id=281935693&repo=mozilla-beta&lineNumber=2331

Assign Valentin to keep an eye on this to see if bug 1594004 eases this after it lands.
Thanks.

This bug can be closed. The network isolation has landed in bug 1639154 and it doesn't trigger this intermittent failure.