Cargo Features

Firestorm has no features set by default.

[dependencies]
firestorm = { version = "0.5.1", features = ["enable_system_time"] }
enable_system_time

Enables system_time of firestorm-enabled and enable_system_time of firestorm ^0.4

Each version enables the previous, so that even if multiple versions of the API are used then the underlying profiling data is shared rather than having gaps.

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.

firestorm-enabled enable_system_time?
firestorm_prev enable_system_time?

Enables firestorm ^0.4