Serde feature requires serde/alloc feature.

[TorfsD]

Trying to build the rsa crate on no_std with the serde feature enabled, failed in building num-bigint due to following line:

num-bigint/src/biguint.rs

Line 2582 in 41264ca

let data: Vec<u32> = Vec::deserialize(deserializer)?;

.

alloc::vec::Vec::deserialize is only available if serde itself has the alloc feature enabled (see https://docs.serde.rs/src/serde/de/impls.rs.html#840).

So shouldn't the serde alloc feature be enabled when serde is enabled ?