Cargo Features

[dependencies]
radix-transactions = { version = "1.3.0", default-features = false, features = ["std", "alloc", "serde", "dump_manifest_to_file", "fuzzing"] }
default = std

You should enable either std or alloc

std default

Enables std of hex, radix-common, radix-engine-interface, radix-rust, radix-substate-store-interface, and sbor

sbor:

preserve_order requires std

Affects manifest::dumper

alloc

Enables alloc of hex, spin_no_std of lazy_static, alloc of radix-common, radix-engine-interface, radix-rust, radix-substate-store-interface, and sbor

serde
dump_manifest_to_file
fuzzing

This flag is set by fuzz-tests framework

Enables fuzzing of radix-common, radix-engine-interface, radix-rust, and sbor