Cargo Features

[dependencies]
unixfs-v1 = { version = "0.3.0", default-features = false, features = ["filetime"] }
default = filetime

The filetime feature is set by default whenever unixfs-v1 is added without default-features = false somewhere in the dependency tree.

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.

filetime default