Travis deploy_branch failing on 8.7.0-beta2

[arknoll]

My system information:

• Operating system type: Mac
• Operating system version: OSX
• BLT version: 8.7.0-beta2

When I:

1. Merge code into my experimental branch.
2. TravisCI runs and gets to the deploy section
3. The deploy section contains a deploy_branch command for "experimental" branch. (https://github.com/acquia-pso/canary/blob/experimental/.travis.yml#L79)

I get the following output:

cd ${TRAVIS_BUILD_DIR}/../blt-project
/home/travis/build/acquia-pso/canary/vendor/acquia/blt/scripts/travis/deploy_branch: line 5: cd: /home/travis/build/acquia-pso/canary/../blt-project: No such file or directory
Script failed with status 1
failed to deploy

https://travis-ci.com/acquia-pso/canary/builds/43252289#L2875

And I expected this to happen:
The experimental branch to be deployed.