sidekiq/testing/inline does not appear to work in BitBucket CI pipeline

[danozard]

Using sidekiq/testing/inline in Ruby rspec tests works fine in a local environment build using Rubymine terminal but it doesn't seem to fire the inline process when run in the CI environment pipeline build on BitBucket. Any ideas why this would be the case? The configuration for the bitbucket pipeline is as follows:

image: circleci/ruby:2.7.4-node-browsers

options:
max-time: 10

definitions:
caches:
bundler: /usr/local/bundle
services:
postgres:
image: postgres:11.6
variables:
POSTGRES_USER: *********
POSTGRES_PASSWORD: ************
step: &Test
name: Test
caches:
- bundler
- node
script:
- bundle install
- yarn install
- rails db:create RAILS_ENV=test
- rails db:migrate RAILS_ENV=test
- bundle exec rspec -f doc
- bundle exec rubocop
services:
- postgres

pipelines:
branches:
'{master, develop, postgres_docker}':
- step: *Test