What can cause npm ERR error! code ELIFECYCLE npm ERR! errno 1?

Question

Node.js

Run npm test
npm test
shell: /usr/bin/bash -e {0}

> [email protected] test /home/runner/work/1490317-cat-energy-22/1490317-cat-energy-22
> npm run editorconfig

> [email protected] editorconfig /home/runner/work/1490317-cat-energy-22/1490317-cat-energy-22
> editorconfig-cli

Using '.editorconfig' from: "/home/runner/work /1490317-cat-energy-22/1490317-cat-energy-22/.editorconfig"
Loaded GLOBs from '/home/runner/work/1490317-cat-energy-22/1490317-cat-energy-22/package.json ': *.json,source/*.html

File: source/index.html
Warning: Expected an indentation at 6 instead of at 5. [warning]
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] editorconfig: `editorconfig-cli`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] editorconfig 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/runner/.npm/_logs/2021-04-09T22_35_47_555Z-debug.log
npm ERR! test failed. See above for more details.
Error: Process completed with exit code 1.