Error: ... editions are unstable ...

[MartinKavik]

https://webassembly.studio/?f=3kwj587992f

[error]: Task build failed: Error: Command failed: /app/.cargo/bin/cargo build --manifest-path=/tmp/rustc_h_x5w620prjdl/Cargo.toml --target=wasm32-unknown-unknown -Z unstable-options --build-plan --quiet

Caused by:
  failed to parse manifest at `/app/.cargo/registry/src/github.com-1ecc6299db9ec823/seed-0.3.6/Cargo.toml`

Caused by:
  editions are unstable

Caused by:
  feature `edition` is required

consider adding `cargo-features = ["edition"]` to the manifest

Could you update tools in this service?
According to this cargo issue, these commands should resolve it:

rustup update
cargo install --force cargo-outdated