No URL provided, cache will not be downloaded from shared cache server. Instead a local version of cache will be extracted. 
Successfully extracted cache
section_end:1570424301:restore_cache
section_start:1570424301:download_artifacts
section_end:1570424302:download_artifacts
section_start:1570424302:build_script
$ npm install gitbook-cli -g
/usr/local/bin/gitbook -> /usr/local/lib/node_modules/gitbook-cli/bin/gitbook.js
+ gitbook-cli@2.3.2
added 578 packages from 672 contributors in 49.366s
$ gitbook fetch 3.2.3
Installing GitBook 3.2.3
section_end:1570427897:build_script
section_start:1570427897:after_script
section_end:1570427897:after_script
section_start:1570427897:upload_artifacts_on_failure
section_end:1570427897:upload_artifacts_on_failure
ERROR: Job failed: execution took longer than 1h0m0s seconds