Getting timeouts under 10.15 on Travis CI when installing CLI tools

[geerlingguy]

In one of my playbook's builds on Travis CI, I started getting build errors due to timeouts:

TASK [elliotweiser.osx-command-line-tools : Install Command Line Tools] ********


No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.
903Check the details on how to adjust your build configuration on: https://docs.travis-ci.com/user/common-build-problems/#Build-times-out-because-no-output-was-received

This only happens in the xcode11.4 Travis CI build environment (10.15), and doesn't seem to happen on the 10.14 environment.

Could this be a Travis CI misconfiguration, or could it really be taking that long?

[geerlingguy]

See a failed build: https://travis-ci.org/github/geerlingguy/ansible-role-mas/builds/698594635

[elliotweiser]

Sometimes it just takes that long. We're at the mercy of the softwareupdate servers.

Considering that the command line tools should already be installed on the Travis CI OS X images, there should be no need to go through these steps. It looks like one of the idempotence checks is failing:

TASK [elliotweiser.osx-command-line-tools : Check the Command Line Tools package metadata] ***
fatal: [localhost]: FAILED! => {"changed": false, "cmd": ["pkgutil", "--pkg-info=com.apple.pkg.CLTools_Executables"], "delta": "0:00:00.265464", "end": "2020-06-15 16:06:32.697657", "msg": "non-zero return code", "rc": 1, "start": "2020-06-15 16:06:32.432193", "stderr": "No receipt for 'com.apple.pkg.CLTools_Executables' found at '/'.", "stderr_lines": ["No receipt for 'com.apple.pkg.CLTools_Executables' found at '/'."], "stdout": "", "stdout_lines": []}
...ignoring

To me this looks like the main problem.