Cargo Features

light-indexed-merkle-tree has no features set by default.

[dependencies]
light-indexed-merkle-tree = { version = "1.1.0", features = ["solana"] }
solana = solana-program

Enables solana of light-concurrent-merkle-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.

solana-program solana?

Enables solana-program =1.18.22