Use drecom image instead of official
Use drecom image instead of official

```
export WERCKER_STEP_ROOT="/pipeline/script-408ab15c-7a77-41d3-b18e-2c71056f6a15"
export WERCKER_STEP_ID="script-408ab15c-7a77-41d3-b18e-2c71056f6a15"
export WERCKER_STEP_OWNER="wercker"
export WERCKER_STEP_NAME="script"
export WERCKER_REPORT_NUMBERS_FILE="/report/script-408ab15c-7a77-41d3-b18e-2c71056f6a15/numbers.ini"
export WERCKER_REPORT_MESSAGE_FILE="/report/script-408ab15c-7a77-41d3-b18e-2c71056f6a15/message.txt"
export WERCKER_REPORT_ARTIFACTS_DIR="/report/script-408ab15c-7a77-41d3-b18e-2c71056f6a15/artifacts"
source "/pipeline/script-408ab15c-7a77-41d3-b18e-2c71056f6a15/run.sh" < /dev/null
*** Error in `/pipeline/cache/bundle-install/ruby/2.4.0/bin/rspec': free(): invalid next size (fast): 0x000000000458fcc0 ***
/pipeline/script-408ab15c-7a77-41d3-b18e-2c71056f6a15/run.sh: line 2:  1767 Aborted                 (core dumped) bundle exec rspec
```

https://app.wercker.com/sue445/cure-mastodon-bots/runs/build-rspec/59cf2090c070350001627f22?step=59cf209ccc579c00010be264

sue445/cure-mastodon-bots,sue445/cure-mastodon-bots