Cargo Features

eager2-core has no features set by default.

[dependencies]
eager2-core = { version = "1.0.1", features = ["testing"] }
testing = proc-macro2, quote

Affects eager2-core::pm

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

proc-macro2 testing?
quote testing?