v1.50.0 Fails gem install (self-runner)

[jdaviderb]

Problem

The most recent release brokes our build

self-runner: Ubuntu 18.04.5 LTS

ubuntu:~/actions-runner$ lsb_release -a
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.5 LTS
Release:	18.04
Codename:	bionic

echo $RUNNER_TOOL_CACHE
/opt/hostedtoolcache

Notes

when I rollback to 1.49.0 the build passed

[eregon]

Seems a duplicate of #104.
It looks like $RUNNER_TOOL_CACHE as read from the action was /home/ubuntu/actions-runner/_work/_tool and not /opt/hostedtoolcache.

#104 (comment) might help.

[eregon]

Fixed by ba761ba

[jdaviderb]

thanks @eregon now it's working fine 💯 🥇