If outputPath starts with ../source/ then build fails:
$ cd test-repo
$ pnpm build
> @test-repo/source@0.0.0 build /home/user/projects/tmp/NxCacheErrorRepro/test-repo
> nx build test-repo
> nx run test-repo:build:production
✔ Browser application bundle generation complete.
✔ Copying assets complete.
✔ Index html generation complete.
Initial Chunk Files | Names | Raw Size | Estimated Transfer Size
main.1bbff18d881dbd28.js | main | 111.97 kB | 32.26 kB
polyfills.17fcc834a0cb8fcf.js | polyfills | 33.03 kB | 10.63 kB
runtime.4a236d66b86ed93e.js | runtime | 896 bytes | 510 bytes
styles.ef46db3751d8e999.css | styles | 0 bytes | -
| Initial Total | 145.87 kB | 43.39 kB
Build at: 2023-10-31T17:45:50.112Z - Hash: 976dace513b0324e - Time: 1613ms
———————————————————————————————————————————————————————————————————————————————————————
> NX Ran target build for project test-repo (7s)
✖ 0/0 failed
✔ 0/0 succeeded [0 read from cache]
> NX EISDIR: illegal operation on a directory, open '/home/user/projects/tmp/NxCacheErrorRepro/test-repo/.nx/cache/13495886819029245579/source'
Pass --verbose to see the stacktrace.
ELIFECYCLE Command failed with exit code 1.