Ensure correct tmpdir is used for install-native

[ijjk]

Uses path.join to fix:

[Error: EACCES: permission denied, mkdir '/tmpnext-swc-1635896565674'] {
  errno: -13,
  code: 'EACCES',
  syscall: 'mkdir',
  path: '/tmpnext-swc-1635896565674'
}

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
buildDuration	17.9s	18.1s	⚠️ +232ms
buildDurationCached	3.8s	3.7s	-78ms
nodeModulesSize	293 MB	293 MB	✓

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.877	2.805	-0.07
/ avg req/sec	869.05	891.32	+22.27
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.351	1.315	-0.04
/error-in-render avg req/sec	1850.69	1901.77	+51.08

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	28 kB	28 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	71.9 kB	71.9 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
_app-HASH.js gzip	1.23 kB	1.23 kB	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	327 B	327 B	✓
dynamic-HASH.js gzip	2.38 kB	2.38 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	635 B	635 B	✓
image-HASH.js gzip	4.44 kB	4.44 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	1.87 kB	1.87 kB	✓
routerDirect..HASH.js gzip	321 B	321 B	✓
script-HASH.js gzip	383 B	383 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
334f979574ae..6f4.css gzip	106 B	106 B	✓
Overall change	13.1 kB	13.1 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
index.html gzip	521 B	521 B	✓
link.html gzip	533 B	533 B	✓
withRouter.html gzip	515 B	515 B	✓
Overall change	1.57 kB	1.57 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
buildDuration	19.4s	19.4s	⚠️ +47ms
buildDurationCached	3.8s	3.8s	⚠️ +2ms
nodeModulesSize	293 MB	293 MB	✓

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.89	2.889	0
/ avg req/sec	865	865.46	+0.46
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.316	1.301	-0.02
/error-in-render avg req/sec	1899.71	1922.02	+22.31

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.3 kB	42.3 kB	✓
main-HASH.js gzip	28.2 kB	28.2 kB	✓
webpack-HASH.js gzip	1.43 kB	1.43 kB	✓
Overall change	72.1 kB	72.1 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
_app-HASH.js gzip	1.22 kB	1.22 kB	✓
_error-HASH.js gzip	180 B	180 B	✓
amp-HASH.js gzip	305 B	305 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.38 kB	2.38 kB	✓
head-HASH.js gzip	342 B	342 B	✓
hooks-HASH.js gzip	622 B	622 B	✓
image-HASH.js gzip	4.46 kB	4.46 kB	✓
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	1.91 kB	1.91 kB	✓
routerDirect..HASH.js gzip	314 B	314 B	✓
script-HASH.js gzip	375 B	375 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
334f979574ae..6f4.css gzip	106 B	106 B	✓
Overall change	13.1 kB	13.1 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
_buildManifest.js gzip	460 B	460 B	✓
Overall change	460 B	460 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js fix/native-tmpdir	Change
index.html gzip	521 B	521 B	✓
link.html gzip	534 B	534 B	✓
withRouter.html gzip	516 B	516 B	✓
Overall change	1.57 kB	1.57 kB	✓

Commit: 1d42525