Cargo Features

ckb-sync has no features set by default.

[dependencies]
ckb-sync = { version = "0.120.0-rc2", features = ["stats", "with_sentry"] }
stats
with_sentry = sentry

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.

sentry with_sentry?