• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Arch Linux
• Poetry version: 1.1.0a3
• Link of a Gist with the contents of your pyproject.toml file: using platform and using markers

Issue

Poetry 1.1.0a3 does not "export" environment markers either by using platform or markers in the dependency definition