rspec
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Remove restrictions
It wasn't possible to write tests for objects that is not Send + Sync before, this PR solves this problem..
- Removed
rayoncrate (which require Send + Sync) to be able to remove unnecessary restrictions on environment. - Send, Sync, Debug - removed from environment, as this library only needs to be able to clone environment, nothing else matters to it.
- Also updated to 2018 edition, which affected the way imports are used. This step is required to implement async functionality in the future.