Cargo Features

esp32-wasm-hal has no features set by default.

[dependencies]
esp32-wasm-hal = { version = "0.1.0", features = ["logger"] }
logger = log

Affects esp32-wasm-hal::logger

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](https://rust-lang.github.io/rfcs/3491-remove-implicit-features.html).

log logger?