Apparent deadlock when combining plugin with `hardhat-ganache`

[jnsvd]

When combining hardhat-gas-reporter with @nomiclabs/hardhat-ganache plugin, there seems to be a deadlock and no test is ran:

$ npx hardhat --network ganache test --verbose --show-stack-traces
  ...
  hardhat:core:hre Creating HardhatRuntimeEnvironment +0ms
  hardhat:core:hre Running task test +76ms
  hardhat:plugin:ganache Starting Ganache +0ms
  hardhat:plugin:ganache-service Initializing server +0ms
  hardhat:plugin:ganache-service Starting server +21ms
  hardhat:core:hre Running test's super +608ms
  hardhat:core:hre Running task compile +0ms
  hardhat:core:hre Running task compile:get-compilation-tasks +0ms
  hardhat:core:hre Running compile:get-compilation-tasks's super +0ms
  hardhat:core:hre Running task compile:solidity +1ms
  hardhat:core:hre Running task compile:solidity:get-source-paths +0ms
  hardhat:core:hre Running task compile:solidity:get-source-names +30ms
  hardhat:core:hre Running task compile:solidity:get-dependency-graph +7ms
  hardhat:core:hre Running task compile:solidity:read-file +2ms
  hardhat:core:hre Running task compile:solidity:read-file +1ms
  hardhat:core:hre Running task compile:solidity:read-file +1ms
  hardhat:core:hre Running task compile:solidity:read-file +14ms
  hardhat:core:hre Running task compile:solidity:get-compilation-jobs +10ms
  ...
  hardhat:core:tasks:compile No compilation jobs to compile +0ms
  hardhat:core:hre Running task compile:solidity:log:nothing-to-compile +0ms
  hardhat:core:hre Running task compile:solidity:log:compilation-result +3ms
  hardhat:core:hre Running task compile:vyper +0ms
  hardhat:core:hre Running task compile:vyper:get-source-paths +0ms
  hardhat:core:hre Running task compile:vyper:get-source-names +4ms
  hardhat:core:hre Running task compile:vyper:read-file +2ms
  hardhat:core:hre Running task compile:vyper:log:compilation-result +8ms
  hardhat:core:hre Running task compile:remove-obsolete-artifacts +0ms
  hardhat:core:hre Running task test:get-test-files +11ms
  hardhat:core:hre Running task test:setup-test-environment +1ms
  hardhat:core:hre Running task test:show-fork-recommendations +0ms
  hardhat:core:hre Running task test:run-mocha-tests +0ms
  hardhat:core:hre Running test:run-mocha-tests's super +793ms

  Greeter

At this point no more output appears and the process needs to be terminated.

When I remove require('hardhat-gas-reporter'); from hardhat.config.js, tests are running fine:

$ npx hardhat --network ganache test --verbose --show-stack-traces
  ...
  hardhat:core:hre Creating HardhatRuntimeEnvironment +0ms
  hardhat:core:hre Running task test +91ms
  hardhat:plugin:ganache Starting Ganache +0ms
  hardhat:plugin:ganache-service Initializing server +0ms
  hardhat:plugin:ganache-service Starting server +22ms
  hardhat:core:hre Running test's super +635ms
  hardhat:core:hre Running task compile +0ms
  hardhat:core:hre Running task compile:get-compilation-tasks +0ms
  hardhat:core:hre Running compile:get-compilation-tasks's super +1ms
  hardhat:core:hre Running task compile:solidity +0ms
  hardhat:core:hre Running task compile:solidity:get-source-paths +0ms
  hardhat:core:hre Running task compile:solidity:get-source-names +30ms
  hardhat:core:hre Running task compile:solidity:get-dependency-graph +9ms
  hardhat:core:hre Running task compile:solidity:read-file +2ms
  hardhat:core:hre Running task compile:solidity:read-file +1ms
  hardhat:core:hre Running task compile:solidity:read-file +0ms
  hardhat:core:hre Running task compile:solidity:read-file +14ms
  hardhat:core:hre Running task compile:solidity:get-compilation-jobs +11ms
  ...
  hardhat:core:tasks:compile No compilation jobs to compile +1ms
  hardhat:core:hre Running task compile:solidity:log:nothing-to-compile +0ms
  hardhat:core:hre Running task compile:solidity:log:compilation-result +3ms
  hardhat:core:hre Running task compile:vyper +0ms
  hardhat:core:hre Running task compile:vyper:get-source-paths +1ms
  hardhat:core:hre Running task compile:vyper:get-source-names +4ms
  hardhat:core:hre Running task compile:vyper:read-file +4ms
  hardhat:core:hre Running task compile:vyper:log:compilation-result +7ms
  hardhat:core:hre Running task compile:remove-obsolete-artifacts +1ms
  hardhat:core:hre Running task test:get-test-files +13ms
  hardhat:core:hre Running task test:setup-test-environment +1ms
  hardhat:core:hre Running task test:show-fork-recommendations +0ms
  hardhat:core:hre Running task test:run-mocha-tests +0ms


  Greeter
  hardhat:core:hre Creating provider for network ganache +56ms
    ✔ Should return the new greeting once it's changed (727ms)


  1 passing (936ms)

  hardhat:plugin:ganache Stopping Ganache +2s
  hardhat:plugin:ganache-service Stopping server +1s
  hardhat:core:cli Killing Hardhat after successfully running task test +0ms

There is no special config for networks.ganache or gasReporter.

Contents of hardhat.config.js:

require('hardhat-gas-reporter');
require('@nomiclabs/hardhat-ganache');
require('dotenv').config();

module.exports = {
  solidity: '0.8.4',
  gasReporter: {
    enabled: true,
    currency: 'USD',
    outputFile: undefined,
    coinmarketcap: process.env.COINMARKETCAP_API_KEY,
  },
  networks: {
    hardhat: {
      forking: {
        url: '<redacted>',
      },
    },
  }
};