🐞 bug report

Affected Package

The issue is caused by package @angular/compiler-cli - specifically `ngcc`

Is this a regression?

Yes, the previous version in which this bug was not present was: 9.0 (or maybe 8.2)

Description

when ngcc runs on circle-ci it fails every time, but if I SSH into the container and run ngcc it completes successfully.

🔬 Minimal Reproduction

https://github.com/paustint/test-ivy-app

Example failing builds: https://app.circleci.com/pipelines/github/paustint/test-ivy-app/1/workflows/e3719bbe-f02c-40c0-8f6f-40c7e61f09ef/jobs/1

https://app.circleci.com/pipelines/github/paustint/test-ivy-app/1/workflows/e3719bbe-f02c-40c0-8f6f-40c7e61f09ef/jobs/2

Note This fails 100% of the time, but fails while compiling seemingly different packages (e.x. it is not consistently failing while compiling any specific package.

🔥 Exception or Error

Debug: Forking unlocker child-process
Debug: Attemping to write lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ with PID 192
Debug: Written lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ with PID 192
Debug: Running ngcc on ClusterExecutor (using 8 worker processes).
Debug: Analyzing entry-points...
Debug: No manifest found for /home/circleci/app/node_modules so walking the directories for entry-points.
Debug: Starting unlocker at process 199 on behalf of process 192
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Walking directories took 0.5s.
Debug: Invalid entry-point /home/circleci/app/node_modules/@angular/common/upgrade. It is missing required dependencies:
 - @angular/upgrade/static
Debug: Invalid entry-point /home/circleci/app/node_modules/@angular/router/upgrade. It is missing required dependencies:
 - @angular/upgrade/static
Debug: Analyzed 51 entry-points in 2.1s. (Total tasks: 255)
Debug: Processing tasks...
Debug: Spawning another worker process as there is more work to be done.
Debug: Spawning another worker process as there is more work to be done.
Debug: Spawning another worker process as there is more work to be done.
Debug: Spawning another worker process as there is more work to be done.
Debug: Spawning another worker process as there is more work to be done.
Debug: No assignments for 1 idle (out of 6 total) workers. Busy workers: 1, 2, 3, 4, 5
Debug: Forking unlocker child-process
Debug: [Worker #1] Processing task: {entryPoint: @angular/core, formatProperty: fesm2015, processDts: true}
Debug: Forking unlocker child-process
Debug: [Worker #2] Processing task: {entryPoint: @angular/animations, formatProperty: fesm2015, processDts: true}
Debug: Forking unlocker child-process
Debug: [Worker #3] Processing task: {entryPoint: @angular/cdk/keycodes, formatProperty: fesm2015, processDts: true}
Debug: Forking unlocker child-process
Debug: [Worker #4] Processing task: {entryPoint: @angular/compiler/testing, formatProperty: fesm2015, processDts: true}
Debug: Forking unlocker child-process
Debug: Forking unlocker child-process
Debug: [Worker #5] Processing task: {entryPoint: @angular/service-worker/config, formatProperty: fesm2015, processDts: true}
Debug: Starting unlocker at process 248 on behalf of process 206
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Starting unlocker at process 255 on behalf of process 213
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Starting unlocker at process 262 on behalf of process 220
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Starting unlocker at process 269 on behalf of process 227
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Starting unlocker at process 277 on behalf of process 234
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug: Starting unlocker at process 276 on behalf of process 241
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Compiling @angular/cdk/keycodes : fesm2015 as esm2015
Compiling @angular/animations : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/keycodes : fesm2015
Debug: Spawning another worker process as there is more work to be done.
Debug: [Worker #3] Processing task: {entryPoint: @angular/cdk/keycodes, formatProperty: fesm5, processDts: false}
Debug: [Worker #6] Processing task: {entryPoint: @angular/cdk/keycodes, formatProperty: esm2015, processDts: false}
Debug: Spawning another worker process as there is more work to be done.
Compiling @angular/service-worker/config : fesm2015 as esm2015
Debug:   Successfully compiled @angular/animations : fesm2015
Debug: Spawning another worker process as there is more work to be done.
Debug: [Worker #2] Processing task: {entryPoint: @angular/animations, formatProperty: fesm5, processDts: false}
Debug: All 8 workers are currently busy and cannot take on more work.
Debug:   Successfully compiled @angular/service-worker/config : fesm2015
Debug: All 8 workers are currently busy and cannot take on more work.
Debug: [Worker #5] Processing task: {entryPoint: @angular/animations, formatProperty: esm5, processDts: false}
Debug: All 9 workers are currently busy and cannot take on more work.
Compiling @angular/cdk/keycodes : fesm5 as esm5
Compiling @angular/compiler/testing : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/keycodes : fesm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @angular/cdk/keycodes, formatProperty: main, processDts: false}
Compiling @angular/animations : fesm5 as esm5
Debug:   Successfully compiled @angular/compiler/testing : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/compiler/testing, formatProperty: fesm5, processDts: false}
Debug:   Successfully compiled @angular/animations : fesm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #2] Processing task: {entryPoint: @angular/compiler/testing, formatProperty: esm2015, processDts: false}
Compiling @angular/animations : esm5 as esm5
Debug:   Successfully compiled @angular/animations : esm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #5] Processing task: {entryPoint: @angular/compiler/testing, formatProperty: esm5, processDts: false}
Debug: Forking unlocker child-process
Debug: [Worker #7] Processing task: {entryPoint: @angular/cdk/keycodes, formatProperty: esm5, processDts: false}
Compiling @angular/cdk/keycodes : esm2015 as esm2015
Debug: Forking unlocker child-process
Debug: Forking unlocker child-process
Compiling @angular/cdk/keycodes : main as umd
Debug: [Worker #8] Processing task: {entryPoint: @angular/animations, formatProperty: esm2015, processDts: false}
Debug: [Worker #9] Processing task: {entryPoint: @angular/animations, formatProperty: main, processDts: false}
Debug:   Successfully compiled @angular/cdk/keycodes : esm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #6] Processing task: {entryPoint: @angular/compiler/testing, formatProperty: main, processDts: false}
Debug:   Successfully compiled @angular/cdk/keycodes : main
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @angular/service-worker/config, formatProperty: fesm5, processDts: false}
Debug: Starting unlocker at process 316 on behalf of process 295
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Compiling @angular/compiler/testing : fesm5 as esm5
Debug: Starting unlocker at process 323 on behalf of process 302
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Debug:   Successfully compiled @angular/compiler/testing : fesm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/service-worker/config, formatProperty: esm2015, processDts: false}
Debug: Starting unlocker at process 324 on behalf of process 309
Debug: The lock-file path is /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__
Compiling @angular/service-worker/config : fesm5 as esm5
Debug:   Successfully compiled @angular/service-worker/config : fesm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @angular/service-worker/config, formatProperty: esm5, processDts: false}
Compiling @angular/cdk/keycodes : esm5 as esm5
Compiling @angular/service-worker/config : esm2015 as esm2015
Debug:   Successfully compiled @angular/service-worker/config : esm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/service-worker/config, formatProperty: main, processDts: false}
Debug:   Successfully compiled @angular/cdk/keycodes : esm5
Debug: No assignments for 1 idle (out of 9 total) workers. Busy workers: 1, 2, 3, 4, 5, 6, 8, 9
Compiling @angular/animations : main as umd
Compiling @angular/animations : esm2015 as esm2015
Compiling @angular/compiler/testing : main as umd
Compiling @angular/service-worker/config : esm5 as esm5
Debug:   Successfully compiled @angular/service-worker/config : esm5
Debug: No assignments for 2 idle (out of 9 total) workers. Busy workers: 1, 2, 4, 5, 6, 8, 9
Debug:   Successfully compiled @angular/animations : esm2015
Debug: No assignments for 3 idle (out of 9 total) workers. Busy workers: 1, 2, 4, 5, 6, 9
Debug:   Successfully compiled @angular/animations : main
Debug: No assignments for 4 idle (out of 9 total) workers. Busy workers: 1, 2, 4, 5, 6
Debug:   Successfully compiled @angular/compiler/testing : main
Debug: No assignments for 5 idle (out of 9 total) workers. Busy workers: 1, 2, 4, 5
Compiling @angular/core : fesm2015 as esm2015
Compiling @angular/compiler/testing : esm2015 as esm2015
Debug:   Successfully compiled @angular/compiler/testing : esm2015
Debug: No assignments for 6 idle (out of 9 total) workers. Busy workers: 1, 4, 5
Compiling @angular/service-worker/config : main as umd
Compiling @angular/compiler/testing : esm5 as esm5
Debug:   Successfully compiled @angular/compiler/testing : esm5
Debug: No assignments for 7 idle (out of 9 total) workers. Busy workers: 1, 4
Debug:   Successfully compiled @angular/service-worker/config : main
Debug: No assignments for 8 idle (out of 9 total) workers. Busy workers: 1
Debug:   Successfully compiled @angular/core : fesm2015
Debug: [Worker #1] Processing task: {entryPoint: @angular/common, formatProperty: fesm2015, processDts: true}
Debug: [Worker #2] Processing task: {entryPoint: @angular/cdk/collections, formatProperty: fesm2015, processDts: true}
Debug: [Worker #4] Processing task: {entryPoint: @angular/animations/browser, formatProperty: fesm2015, processDts: true}
Debug: [Worker #6] Processing task: {entryPoint: @angular/core/testing, formatProperty: fesm2015, processDts: true}
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #5] Processing task: {entryPoint: @angular/cdk/observers, formatProperty: fesm2015, processDts: true}
Debug: [Worker #3] Processing task: {entryPoint: @ngrx/store, formatProperty: fesm2015, processDts: true}
Debug: [Worker #7] Processing task: {entryPoint: ngx-window-token, formatProperty: fesm2015, processDts: true}
Debug: [Worker #8] Processing task: {entryPoint: @angular/core, formatProperty: fesm5, processDts: false}
Debug: [Worker #9] Processing task: {entryPoint: @angular/core, formatProperty: esm2015, processDts: false}
Compiling @angular/cdk/collections : fesm2015 as esm2015
Compiling @angular/common : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/collections : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #2] Processing task: {entryPoint: @angular/cdk/accordion, formatProperty: fesm2015, processDts: true}
Compiling @angular/animations/browser : fesm2015 as esm2015
Compiling ngx-window-token : fesm2015 as esm2015
Debug:   Successfully compiled ngx-window-token : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #7] Processing task: {entryPoint: @angular/core, formatProperty: esm5, processDts: false}
Debug:   Successfully compiled @angular/common : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #1] Processing task: {entryPoint: @angular/cdk/platform, formatProperty: fesm2015, processDts: true}
Compiling @ngrx/store : fesm2015 as esm2015
Compiling @angular/cdk/observers : fesm2015 as esm2015
Debug:   Successfully compiled @angular/animations/browser : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/cdk/bidi, formatProperty: fesm2015, processDts: true}
Compiling @angular/core/testing : fesm2015 as esm2015
Compiling @angular/core : fesm5 as esm5
Debug:   Successfully compiled @angular/cdk/observers : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #5] Processing task: {entryPoint: @angular/platform-browser, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @ngrx/store : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @angular/common/http, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/core/testing : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #6] Processing task: {entryPoint: @angular/forms, formatProperty: fesm2015, processDts: true}
Compiling @angular/cdk/accordion : fesm2015 as esm2015
Compiling @angular/cdk/platform : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/platform : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #1] Processing task: {entryPoint: @angular/cdk/a11y, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/cdk/accordion : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #2] Processing task: {entryPoint: @angular/cdk/portal, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/core : fesm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #8] Processing task: {entryPoint: @angular/common/testing, formatProperty: fesm2015, processDts: true}
Compiling @angular/core : esm2015 as esm2015
Compiling @angular/cdk/bidi : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/bidi : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/cdk/scrolling, formatProperty: fesm2015, processDts: true}
Compiling @angular/platform-browser : fesm2015 as esm2015
Debug:   Successfully compiled @angular/core : esm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #9] Processing task: {entryPoint: @angular/router, formatProperty: fesm2015, processDts: true}
Compiling @angular/common/http : fesm2015 as esm2015
Compiling @angular/forms : fesm2015 as esm2015
Debug:   Successfully compiled @angular/common/http : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @ngrx/effects, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/platform-browser : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #5] Processing task: {entryPoint: @angular/platform-browser-dynamic, formatProperty: fesm2015, processDts: true}
Compiling @angular/cdk/portal : fesm2015 as esm2015
Debug:   Successfully compiled @angular/forms : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #6] Processing task: {entryPoint: @angular/platform-browser/testing, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/cdk/portal : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #2] Processing task: {entryPoint: @angular/platform-browser/animations, formatProperty: fesm2015, processDts: true}
Compiling @angular/core : esm5 as esm5
Compiling @angular/cdk/a11y : fesm2015 as esm2015
Debug:   Successfully compiled @angular/core : esm5
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #7] Processing task: {entryPoint: @angular/animations/browser/testing, formatProperty: fesm2015, processDts: true}
Debug:   Successfully compiled @angular/cdk/a11y : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #1] Processing task: {entryPoint: @angular/cdk/clipboard, formatProperty: fesm2015, processDts: true}
Compiling @angular/common/testing : fesm2015 as esm2015
Debug:   Successfully compiled @angular/common/testing : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #8] Processing task: {entryPoint: @angular/cdk/layout, formatProperty: fesm2015, processDts: true}
Compiling @angular/cdk/scrolling : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/scrolling : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #4] Processing task: {entryPoint: @angular/cdk/drag-drop, formatProperty: fesm2015, processDts: true}
Compiling @ngrx/effects : fesm2015 as esm2015
Debug:   Successfully compiled @ngrx/effects : fesm2015
Debug: All 9 workers are currently busy and cannot take on more work.
Debug: [Worker #3] Processing task: {entryPoint: @angular/cdk/overlay, formatProperty: fesm2015, processDts: true}
Warning: Worker #1 exited unexpectedly (code: null | signal: SIGKILL).
  Current assignment: {entryPoint: @angular/cdk/clipboard, formatProperty: fesm2015, processDts: true}
Debug: Stopping 8 workers...
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: PIDs match (192), so removing /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Error: Process unexpectedly crashed, while processing format property fesm2015 for entry-point '/home/circleci/app/node_modules/@angular/cdk/clipboard'.
    at ClusterMaster.onWorkerExit (/home/circleci/app/node_modules/@angular/compiler-cli/ngcc/src/execution/cluster/master.js:153:23)
    at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/src/execution/cluster/master.js:51:101
    at ClusterMaster.<anonymous> (/home/circleci/app/node_modules/@angular/compiler-cli/ngcc/src/execution/cluster/master.js:246:57)
    at step (/home/circleci/app/node_modules/tslib/tslib.js:136:27)
    at Object.next (/home/circleci/app/node_modules/tslib/tslib.js:117:57)
    at /home/circleci/app/node_modules/tslib/tslib.js:110:75
    at new Promise (<anonymous>)
    at Object.__awaiter (/home/circleci/app/node_modules/tslib/tslib.js:106:16)
    at EventEmitter.<anonymous> (/home/circleci/app/node_modules/@angular/compiler-cli/ngcc/src/execution/cluster/master.js:240:32)
    at EventEmitter.emit (events.js:200:13)
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/platform-browser-dynamic : fesm2015 as esm2015
Debug:   Successfully compiled @angular/platform-browser-dynamic : fesm2015
Compiling @angular/platform-browser/testing : fesm2015 as esm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Debug:   Successfully compiled @angular/platform-browser/testing : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/router : fesm2015 as esm2015
Compiling @angular/platform-browser/animations : fesm2015 as esm2015
Debug:   Successfully compiled @angular/platform-browser/animations : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Debug:   Successfully compiled @angular/router : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/animations/browser/testing : fesm2015 as esm2015
Debug:   Successfully compiled @angular/animations/browser/testing : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/cdk/layout : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/layout : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/cdk/drag-drop : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/drag-drop : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
Compiling @angular/cdk/overlay : fesm2015 as esm2015
Debug:   Successfully compiled @angular/cdk/overlay : fesm2015
Debug: Attempting to remove lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__.
Debug: The lock-file at /home/circleci/app/node_modules/@angular/compiler-cli/ngcc/__ngcc_lock_file__ was already removed.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test-ivy-app@0.0.0 ngcc: `ngcc --loglevel debug`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the test-ivy-app@0.0.0 ngcc script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/circleci/.npm/_logs/2020-03-27T15_41_27_725Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! test-ivy-app@0.0.0 postinstall: `npm run ngcc`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the test-ivy-app@0.0.0 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/circleci/.npm/_logs/2020-03-27T15_41_27_795Z-debug.log

🌍 Your Environment

Angular Version:

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI: 9.1.0
Node: 12.3.1
OS: linux x64

Angular: 9.1.0
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, localize, platform-browser
... platform-browser-dynamic, platform-server, router
... service-worker
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.901.0
@angular-devkit/build-angular     0.901.0
@angular-devkit/build-optimizer   0.901.0
@angular-devkit/build-webpack     0.901.0
@angular-devkit/core              9.1.0
@angular-devkit/schematics        9.1.0
@angular/cdk                      9.2.0
@ngtools/webpack                  9.1.0
@schematics/angular               9.1.0
@schematics/update                0.901.0
rxjs                              6.5.3
typescript                        3.8.3
webpack                           4.42.0

Anything else relevant?

1. If I ssh into the circle-ci container and run ngcc manually it completes successfully
2. If I run ngcc locally it works
3. When ngcc is kicked off from a post install step it fails, or even in circle ci with a stand-alone step it also fails