Ember build continually rebuilds in response to dist directory changes

[NullVoxPopuli]

The repeated messages

file changed dist/workers/ai__launcher.js
⠋ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used
⠙ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used

[project root]/workers/ai.js

import Worker, { method } from '@skyrocketjs/worker';

import { run as runRNN } from './ai/rnn';
import { run as runRandom } from './ai/random';

export default class AIWorker extends Worker {
  @method
  run({ game, algorithm, trainingData}) {
    switch (algorithm) {
      case 'RNN':
        return runRNN(game, trainingData);
      case 'random':
        return runRandom();
      default:
        console.error(...arguments);
        throw new Error('Unrecognized Algorithm', algorithm);
    }
  }
}

Full output

 building... The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten
⠇ building... [broccoli-persistent-filter:Babel > applyPatches]'@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used
⠏ building... [broccoli-persistent-filter:Babel > applyPatches]'@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used

Build successful (3591ms) – Serving on http://localhost:4200/

Slowest Nodes (totalTime >= 5%)                                                                                             | Total (avg)                   
----------------------------------------------------------------------------------------------------------------------------+-------------------------------
broccoli-persistent-filter:Babel (4)                                                                                        | 1209ms (302 ms)               
Babel: doctor-who-ai (2)                                                                                                    | 809ms (404 ms)                
Bundler (1)                                                                                                                 | 374ms                         
ember-auto-import-analyzer (3)                                                                                              | 288ms (96 ms)                 
Babel: @ember/test-helpers (2)                                                                                              | 227ms (113 ms)                

file added dist
⠋ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used
'@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
⠙ building... '@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used

Build successful (155ms) – Serving on http://localhost:4200/

Slowest Nodes (totalTime >= 5%)                                                                                             | Total (avg)                   
----------------------------------------------------------------------------------------------------------------------------+-------------------------------
WorkerCompiler extends BroccoliRollup (2)                                                                                   | 44ms (22 ms)                  
BroccoliMergeTrees (20)                                                                                                     | 14ms (0 ms)                   
broccoli-persistent-filter:Babel (4)                                                                                        | 11ms (2 ms)                   

file changed dist/workers/ai__launcher.js
⠋ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used
⠙ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used

Build successful (209ms) – Serving on http://localhost:4200/

Slowest Nodes (totalTime >= 5%)                                                                                             | Total (avg)                   
----------------------------------------------------------------------------------------------------------------------------+-------------------------------
WorkerCompiler extends BroccoliRollup (2)                                                                                   | 75ms (37 ms)                  
BroccoliMergeTrees (20)                                                                                                     | 14ms (0 ms)                   
broccoli-persistent-filter:Babel (4)                                                                                        | 13ms (3 ms)                   

file changed dist/workers/ai__launcher.js
⠋ building... '@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
'@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used
'@skyrocketjs/worker/build/shell' is imported by workers/ai--launcher.js, but could not be resolved – treating it as an external dependency
⠙ building... '@skyrocketjs/worker' is imported by workers/ai.js, but could not be resolved – treating it as an external dependency
'method' is imported from external module '@skyrocketjs/worker' but never used

Build successful (175ms) – Serving on http://localhost:4200/

[ming-codes]

I'm getting this too, but it looks like it's fixed on master?

[ming-codes]

I made a few changes on my local. It looks like skyrocket is mostly usable. This issue is a major blocker. Maybe we can cut a release?