Enable outputFileTracing by default

[ijjk]

Bug

• Related issues linked using fixes #number
• Integration tests added
• Errors have helpful link attached, see contributing.md

Feature

• Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
• Related issues linked using fixes #number
• Integration tests added
• Documentation added
• Telemetry added. In case of a feature if it's used or not.
• Errors have helpful link attached, see contributing.md

Documentation / Examples

• Make sure the linting passes by running yarn lint

[styfle]

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall decrease ✓

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
buildDuration	8.7s	17.3s	⚠️ +8.6s
buildDurationCached	2.8s	3.5s	⚠️ +740ms
nodeModulesSize	196 MB	196 MB	-8 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.902	2.869	-0.03
/ avg req/sec	861.61	871.43	+9.82
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.329	1.399	⚠️ +0.07
/error-in-render avg req/sec	1881.17	1786.43	⚠️ -94.74

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
450.126dd8f7..9662.js gzip	179 B	179 B	✓
framework-89..a097.js gzip	42.2 kB	42.2 kB	✓
main-4c83cbc..5816.js gzip	27.7 kB	27.7 kB	✓
webpack-7ed4..c253.js gzip	1.45 kB	1.45 kB	✓
Overall change	71.5 kB	71.5 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
_app-e2cfdd4..f20e.js gzip	1.23 kB	1.23 kB	✓
_error-6679c..c50e.js gzip	194 B	194 B	✓
amp-e55eb6be..a860.js gzip	312 B	312 B	✓
css-3561b6c4..ef9e.js gzip	327 B	327 B	✓
dynamic-3814..830e.js gzip	2.38 kB	2.38 kB	✓
head-0b292cc..7d7c.js gzip	350 B	350 B	✓
hooks-a534e8..efa1.js gzip	635 B	635 B	✓
image-07bccd..d945.js gzip	4.44 kB	4.44 kB	✓
index-d12b47..75f9.js gzip	263 B	263 B	✓
link-a8a0a12..1f88.js gzip	1.87 kB	1.87 kB	✓
routerDirect..6a79.js gzip	321 B	321 B	✓
script-e1458..a8d4.js gzip	383 B	383 B	✓
withRouter-b..6929.js gzip	318 B	318 B	✓
9a34b27eb3f9..27d.css gzip	125 B	125 B	✓
Overall change	13.2 kB	13.2 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
index.html gzip	536 B	536 B	✓
link.html gzip	548 B	548 B	✓
withRouter.html gzip	529 B	529 B	✓
Overall change	1.61 kB	1.61 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General Overall decrease ✓

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
buildDuration	6s	14.6s	⚠️ +8.7s
buildDurationCached	2.8s	3.5s	⚠️ +714ms
nodeModulesSize	196 MB	196 MB	-8 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.89	2.851	-0.04
/ avg req/sec	865.19	876.74	+11.55
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.371	1.351	-0.02
/error-in-render avg req/sec	1823.29	1850.27	+26.98

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
450.fd3ad245..022b.js gzip	179 B	179 B	✓
framework-13..70b0.js gzip	50.8 kB	50.8 kB	✓
main-30a0900..79fc.js gzip	36.1 kB	36.1 kB	✓
webpack-9f86..1988.js gzip	1.57 kB	1.57 kB	✓
Overall change	88.6 kB	88.6 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
_app-ae91bc3..d985.js gzip	1.33 kB	1.33 kB	✓
_error-273ac..9ef0.js gzip	180 B	180 B	✓
amp-5f9a7694..99ce.js gzip	315 B	315 B	✓
css-3a1b2477..df1e.js gzip	330 B	330 B	✓
dynamic-de3d..5a68.js gzip	2.72 kB	2.72 kB	✓
head-7f600d0..daa3.js gzip	356 B	356 B	✓
hooks-bd8c02..0730.js gzip	638 B	638 B	✓
image-17d548..6bf2.js gzip	5.11 kB	5.11 kB	✓
index-80be94..e89f.js gzip	262 B	262 B	✓
link-b0ce9b3..48f4.js gzip	2.21 kB	2.21 kB	✓
routerDirect..c4aa.js gzip	325 B	325 B	✓
script-67da0..49e6.js gzip	390 B	390 B	✓
withRouter-2..2409.js gzip	322 B	322 B	✓
9a34b27eb3f9..27d.css gzip	125 B	125 B	✓
Overall change	14.6 kB	14.6 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js enable/outputFileTracing	Change
index.html gzip	536 B	536 B	✓
link.html gzip	548 B	548 B	✓
withRouter.html gzip	530 B	530 B	✓
Overall change	1.61 kB	1.61 kB	✓

Commit: 268051d

[ijjk]

Failing test suites

Commit: 268051d

test/development/basic-basepath/hmr.test.ts

• basic HMR > Error Recovery > should recover after a bad return from the render function
• basic HMR > Error Recovery > should recover after undefined exported as default

Expand output

● basic HMR › Error Recovery › should recover after a bad return from the render function

TIMED OUT: /This is the about page/

  437 |
  438 |   if (hardError) {
> 439 |     throw new Error('TIMED OUT: ' + regex + '\n\n' + content)
      |           ^
  440 |   }
  441 |   return false
  442 | }

  at Object.check (lib/next-test-utils.js:439:11)
  at Object.<anonymous> (development/basic-basepath/hmr.test.ts:557:9)

● basic HMR › Error Recovery › should recover after undefined exported as default

TIMED OUT: /This is the about page/

  437 |
  438 |   if (hardError) {
> 439 |     throw new Error('TIMED OUT: ' + regex + '\n\n' + content)
      |           ^
  440 |   }
  441 |   return false
  442 | }

  at Object.check (lib/next-test-utils.js:439:11)
  at Object.<anonymous> (development/basic-basepath/hmr.test.ts:613:8)