> wasm-tools compose salutation.wasm -d types.wasm -o sal_ty.wasm
error: failed to validate output component `sal_ty.wasm`

Caused by:
    0: instance not valid to be used as export (at offset 0x10a56)

package hotswap:salutation@0.1.0;

interface user-interface {
    type tag = u64;
    enum gender {
        male,
        female,
        other
    }

    record user {
        name: string,
        id: u64,
        tenant-tags: list<tag>,
        gender: gender,
    }
    record time {
        seconds: u64,
        nanos: u64,
    }

    age-in-weeks: func(u: user, now: time) -> u32;
}
world types {
    export user-interface;
}

package hotswap:salutation@0.1.0;

interface salutation {
    use user-interface.{user};

    variant formal-honorific {
        sir,
        maam,
        sir-maam,
        custom(string)
    }
    get-formal-honorific: func(u: user) -> formal-honorific;
    greet: func(u: user) -> string;
}

world app {
    export salutation;
}

...
 DEBUG wac_graph::encoding     > popping type scope
 DEBUG wac_graph::encoding     > instance type encoded to type index 17
 DEBUG wac_graph::graph        > import `wasi:filesystem/preopens@0.2.0` encoded to instance index 9
 DEBUG wac_graph::graph        > interface `wasi:filesystem/preopens@0.2.0` is available for aliasing as instance index 9
 DEBUG wac_graph::graph        > instantiating package `plug:types` with arguments: [("wasi:cli/environment@0.2.0", Instance, 0), ("wasi:cli/exit@0.2.0", Instance, 1), ("wasi:io/error@0.2.0", Instance, 2), ("wasi:io/streams@0.2.0", Instance, 3), ("wasi:cli/stdin@0.2.0", Instance, 4), ("wasi:cli/stdout@0.2.0", Instance, 5), ("wasi:cli/stderr@0.2.0", Instance, 6), ("wasi:clocks/wall-clock@0.2.0", Instance, 7), ("wasi:filesystem/types@0.2.0", Instance, 8), ("wasi:filesystem/preopens@0.2.0", Instance, 9)]
 DEBUG wac_graph::graph        > instantiation of package `plug:types` encoded to instance index 10
 DEBUG wac_graph::graph        > encoding alias for instance export `hotswap:salutation/user-interface@0.1.0` of instance index 10
 DEBUG wac_graph::graph        > alias of export `hotswap:salutation/user-interface@0.1.0` encoded to instance index 11
 DEBUG wac_graph::graph        > instantiating package `socket` with arguments: [("hotswap:salutation/user-interface@0.1.0", Instance, 11), ("wasi:cli/environment@0.2.0", Instance, 0), ("wasi:cli/exit@0.2.0", Instance, 1), ("wasi:io/error@0.2.0", Instance, 2), ("wasi:io/streams@0.2.0", Instance, 3), ("wasi:cli/stdin@0.2.0", Instance, 4), ("wasi:cli/stdout@0.2.0", Instance, 5), ("wasi:cli/stderr@0.2.0", Instance, 6), ("wasi:clocks/wall-clock@0.2.0", Instance, 7), ("wasi:filesystem/types@0.2.0", Instance, 8), ("wasi:filesystem/preopens@0.2.0", Instance, 9)]
 DEBUG wac_graph::graph        > instantiation of package `socket` encoded to instance index 12
 DEBUG wac_graph::graph        > encoding alias for instance export `hotswap:salutation/salutation@0.1.0` of instance index 12
 DEBUG wac_graph::graph        > alias of export `hotswap:salutation/salutation@0.1.0` encoded to instance index 13
error: encoding produced a component that failed validation

Caused by:
    instance not valid to be used as export (at offset 0x36d3bf)

Stack backtrace:
   0: std::backtrace_rs::backtrace::libunwind::trace
             at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1: std::backtrace_rs::backtrace::trace_unsynchronized
             at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2: std::backtrace::Backtrace::create
             at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/backtrace.rs:331:13
   3: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
   4: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
   5: wac_cli::commands::plug::PlugCommand::exec::{{closure}}
   6: wac::main::{{closure}}
...

interface user-types {
    type tag = u64;
    enum gender {
        male,
        female,
        other
    }

    record user {
        name: string,
        id: u64,
        tenant-tags: list<tag>,
        gender: gender,
    }
    record time {
        seconds: u64,
        nanos: u64,
    }
}

interface user {
    use user-types.{user, time};
    age-in-weeks: func(u: user, now: time) -> u32;
}
world types {
    export user;
    export user-types;
}

interface salutation-types {
    variant formal-honorific {
        sir,
        maam,
        sir-maam,
        custom(string)
    }
}
interface salutation {
    use user-types.{user, time};
    use salutation-types.{formal-honorific};

    get-formal-honorific: func(u: user) -> formal-honorific;
    greet: func(u: user) -> string;
}

world app {
    import user;
    import user-types;
    export salutation-types;
    export salutation;
}

world app {
    import user;
    export salutation;
}

cargo component build -p types
cargo component build -p salutation
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.02s
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00s

wac plug --plug types.wasm salutation.wasm -o tysal.wasm
error: encoding produced a component that failed validation

Caused by:
    instance not valid to be used as export (at offset 0x36dcea)