Cargo Features

bbqueue-sync has no features set by default.

[dependencies]
bbqueue-sync = { version = "0.5.1", features = ["thumbv6", "defmt_0_3"] }
thumbv6 = cortex-m
defmt_0_3 = defmt

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.

cortex-m thumbv6?

Enables cortex-m ^0.6.0

defmt defmt_0_3?