Error `Execution context was destroyed`

[ehmicky]

The following error happens in some builds:

pa11y failed
Execution context was destroyed, most likely because of a navigation. 
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/ExecutionContext.js:167:15 rewriteError
    internal/process/task_queues.js:97:5 processTicksAndRejections
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/ExecutionContext.js:73:56 async ExecutionContext._evaluateInternal
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/ExecutionContext.js:48:12 async ExecutionContext.evaluate
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:214:3 async runPa11yTest
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:55:19 async pa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:30:12 async runPa11yOnFile
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:8:17 async Object.exports.runPa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/index.js:24:23 async onPostBuild
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/helper.js:111:15 ExecutionContext.<anonymous>
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/DOMWorld.js:112:20 DOMWorld.evaluate
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/helper.js:111:15 Frame.<anonymous>
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/Page.js:833:43 Page.evaluate
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/helper.js:112:23 Page.<anonymous>
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:214:14 runPa11yTest
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:55:19 async pa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:30:12 async runPa11yOnFile
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:8:17 async Object.exports.runPa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/index.js:24:23 async onPostBuild
    src/plugins/child/run.js:18:3 async Object.run
    /opt/buildhome/.netlify-build-plugins/node_modules/puppeteer/lib/helper.js:111:15 Page.<anonymous>
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:214:14 runPa11yTest
    /opt/buildhome/.netlify-build-plugins/node_modules/pa11y/lib/pa11y.js:55:19 async pa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:30:12 async runPa11yOnFile
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/pluginCore.js:8:17 async Object.exports.runPa11y
    /opt/buildhome/.netlify-build-plugins/node_modules/netlify-plugin-a11y/plugin/index.js:24:23 async onPostBuild
    src/plugins/child/run.js:18:3 async Object.run
    src/plugins/child/main.js:38:38 async handleEvent
    src/plugins/ipc.js:97:9 async process.<anonymous>

There is no other information unfortunately except that this plugin had no other output, and was installed without any specified inputs.

Do you know what the error might be?