The only reported error is:
You are using the deprecated option "dev". Dev packages are installed by default now.
LInstalling dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
satooshi/php-coveralls dev-master requires psr/log 1.0.0 -> satisfiable by psr/log[1.0.0].
satooshi/php-coveralls dev-master requires psr/log 1.0.0 -> satisfiable by psr/log[1.0.0].
Conclusion: don't install psr/log 1.0.0
Installation request for satooshi/php-coveralls dev-master -> satisfiable by satooshi/php-coveralls[dev-master].
Since using a PHP library for coverals.io, every step for determine dependencys fail, e.g. https://scrutinizer-ci.com/g/aimeos/aimeos-symfony2/inspections/b6ae816e-de60-46f1-ac5a-acc586d75ca9
The only reported error is: You are using the deprecated option "dev". Dev packages are installed by default now. LInstalling dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages.
Problem 1
Locally, everything works fine.