Cargo Features

foundry-compilers-artifacts-solc has no features set by default.

[dependencies]
foundry-compilers-artifacts-solc = { version = "0.11.6", features = ["async"] }
async = futures-util

Enables fs of tokio

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.

futures-util async?