Cargo Features

[dependencies]
rsgc = { version = "1.1.0", default-features = false, features = ["conditional-safepoint", "gc-satb", "gc-passive"] }
default = gc-satb

The gc-satb feature is set by default whenever rsgc is added without default-features = false somewhere in the dependency tree.

conditional-safepoint
gc-satb default
gc-incremental-update gc-passive

RSGC has 4 features without comments.