Cargo Features

Prove has no features set by default.

[dependencies]
prove = { version = "0.1.5", features = ["proc"] }
proc = proc-macro2, quote

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 proc?

Enables proc-macro2 ^0.4

quote proc?

Enables quote ^0.6