Cargo Features

Proj4wkt has no features set by default.

[dependencies]
proj4wkt = { version = "0.1.0", features = ["logging", "wasm-strict", "proj4js-compat"] }
logging = log
wasm-strict
proj4js-compat

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.

log logging?