ember-canary packages/utils appears to be failing

[stefanpenner]

ember-canary in packages/utils appears to be failing:
See https://github.com/embroider-build/embroider/runs/3397677418

not ok 1 Chrome 92.0 - [143 ms] - Integration | Helper | ensure-safe-component: string value
    ---
        actual: >
            null
        stack: >
            TypeError: templateFactory$$1 is not a function
                at Function.create (webpack://dummy/../../node_modules/ember-source/@ember/-internals/glimmer/index.js?:8716:22)
                at FactoryManager.create (webpack://dummy/../../node_modules/ember-source/@ember/-internals/container/index.js?:483:25)
                at Proxy.create (webpack://dummy/../../node_modules/ember-source/@ember/-internals/container/index.js?:262:16)
                at eval (webpack://dummy/../../../../node_modules/@ember/test-helpers/setup-rendering-context.js?:252:35)
        message: >
            Promise rejected before "string value": templateFactory$$1 is not a function
        negative: >
            false

I am starting to investigate now, and I am able to reproduce locally

[stefanpenner]

I believe @ember/test-helpers is currently incompatible with ember-canary due to emberjs/ember.js#19680 landing. I suspect emberjs/ember.js#19680 (comment) will need to be added to @ember/test-helpers

[stefanpenner]

possible FIX to @ember/test-helpers -> emberjs/ember-test-helpers#1110

[stefanpenner]

Ok, that fix landed. Unfortunately, there appears to be a new issue, this time during template compilation.

[stefanpenner]

Module build failed (from ../../../../../../../../../../../../Users/spenner/src/embroider-build/embroider/packages/babel-loader-8/index.js):
NonErrorEmittedError: (Emitted value instead of an instance of Error) TypeError: $TMPDIR/embroider/cb03bb/node_modules/@ember/test-helpers/setup-rendering-context.js/setup-rendering-context.js: Cannot read property 'visitor' of undefined
    at processResult (/Users/spenner/src/embroider-build/embroider/node_modules/webpack/lib/NormalModule.js:718:12)
    at /Users/spenner/src/embroider-build/embroider/node_modules/webpack/lib/NormalModule.js:827:5
    at /Users/spenner/src/embroider-build/embroider/node_modules/loader-runner/lib/LoaderRunner.js:399:11
    at /Users/spenner/src/embroider-build/embroider/node_modules/loader-runner/lib/LoaderRunner.js:251:18
    at context.callback (/Users/spenner/src/embroider-build/embroider/node_modules/loader-runner/lib/LoaderRunner.js:124:13)
    at /Users/spenner/src/embroider-build/embroider/node_modules/babel-loader/lib/index.js:59:103

[stefanpenner]

I believe I have fixed the next issue as well. Pending CI confirmation.