bug: unable to create Array of class type

[laciferin2024]

@dataclass
class Guess:
    keys_owned: u8
    address: str
class Room(Account):
    id: u64
    owner: Pubkey
    cur_price: u64
    is_locked: bool
    guests: List[Guest]

/bin/zsh -c "just build"
seahorse build 
✗ Compiling rizz...
Error: anchor build -p rizz failed:

This is most likely a bug in the Seahorse compiler!

If you want to help the project, you can report this:
  - on the Seahorse Discord (http://discord.gg/4sFzH5pus8)
  - or as a Github issue (https://github.com/ameliatastic/seahorse-lang/issues).

Thanks!

warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
package:   /Volumes/N/Reclaim/Rizz/programs/rizz/Cargo.toml
workspace: /Volumes/N/Reclaim/Rizz/Cargo.toml
   Compiling rizz v0.1.0 (/Volumes/N/Reclaim/Rizz/programs/rizz)
error[E0277]: the trait bound `seahorse_util::Mutable<Guest>: BorshSerialize` is not satisfied
  --> programs/rizz/src/dot/program.rs:38:1
   |
38 | #[account]
   | ^^^^^^^^^^ the trait `BorshSerialize` is not implemented for `seahorse_util::Mutable<Guest>`
   |
   = help: the following other types implement trait `BorshSerialize`:
             &T
             ()
             (T0, T1)
             (T0, T1, T2)
             (T0, T1, T2, T3)
             (T0, T1, T2, T3, T4)
             (T0, T1, T2, T3, T4, T5)
             (T0, T1, T2, T3, T4, T5, T6)
           and 155 others
   = note: required for `Vec<seahorse_util::Mutable<Guest>>` to implement `BorshSerialize`
   = help: see issue #48214
   = help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
   = note: this error originates in the derive macro `AnchorSerialize` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `seahorse_util::Mutable<Guest>: BorshDeserialize` is not satisfied
  --> programs/rizz/src/dot/program.rs:38:1
   |
38 | #[account]
   | ^^^^^^^^^^ the trait `BorshDeserialize` is not implemented for `seahorse_util::Mutable<Guest>`
   |
   = help: the following other types implement trait `BorshDeserialize`:
             ()
             (T0, T1)
             (T0, T1, T2)
             (T0, T1, T2, T3)
             (T0, T1, T2, T3, T4)
             (T0, T1, T2, T3, T4, T5)
             (T0, T1, T2, T3, T4, T5, T6)
             (T0, T1, T2, T3, T4, T5, T6, T7)
           and 119 others
   = note: required for `Vec<seahorse_util::Mutable<Guest>>` to implement `BorshDeserialize`
   = help: see issue #48214
   = help: add `#![feature(trivial_bounds)]` to the crate attributes to enable
   = note: this error originates in the derive macro `AnchorDeserialize` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0277`.