plaflamme / bin-deps-wasm

Cargo wasm binary dependency

The goal is to have a bin crate depend on a .wasm file that is built from a local dependency and only have to cargo build it.

To achieve this, it uses the bindeps unstable feature.

This repository has the appropriate setup and cargo build does indeed succeed using nightly (cargo 1.61.0-nightly (3d6970d50 2022-02-28)).

An issue occurs when adding a (any?) dependency in the wasm module (see wasm-module/Cargo.toml). This results in the following error:

thread 'main' panicked at 'activated_features for invalid package: features did not find PackageId { name: "log", version: "0.4.14", source: "registry `crates-io`" } NormalOrDevOrArtifactTarget(None)

Stack backtrace:
   0: std::backtrace::Backtrace::create
   1: std::backtrace::Backtrace::capture
   2: <anyhow::Error>::msg::<alloc::string::String>
   3: <cargo::core::resolver::features::ResolvedFeatures>::activated_features_int
   4: cargo::core::compiler::unit_dependencies::new_unit_dep_with_profile
   5: cargo::core::compiler::unit_dependencies::dep_build_script
   6: cargo::core::compiler::unit_dependencies::compute_deps
   7: cargo::core::compiler::unit_dependencies::deps_of
   8: cargo::core::compiler::unit_dependencies::deps_of
   9: cargo::core::compiler::unit_dependencies::deps_of
  10: cargo::core::compiler::unit_dependencies::deps_of_roots
  11: cargo::core::compiler::unit_dependencies::build_unit_dependencies
  12: cargo::ops::cargo_compile::create_bcx
  13: cargo::ops::cargo_compile::compile_ws
  14: cargo::ops::cargo_compile::compile
  15: cargo::commands::build::exec
  16: cargo::cli::main
  17: cargo::main
  18: std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>
  19: std::rt::lang_start::<()>::{closure#0}
  20: std::rt::lang_start_internal
  21: _main', src/tools/cargo/src/cargo/core/resolver/features.rs:318:14
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::result::unwrap_failed
   3: cargo::core::compiler::unit_dependencies::new_unit_dep_with_profile
   4: cargo::core::compiler::unit_dependencies::dep_build_script
   5: cargo::core::compiler::unit_dependencies::compute_deps
   6: cargo::core::compiler::unit_dependencies::deps_of
   7: cargo::core::compiler::unit_dependencies::deps_of
   8: cargo::core::compiler::unit_dependencies::deps_of
   9: cargo::core::compiler::unit_dependencies::deps_of_roots
  10: cargo::core::compiler::unit_dependencies::build_unit_dependencies
  11: cargo::ops::cargo_compile::create_bcx
  12: cargo::ops::cargo_compile::compile_ws
  13: cargo::ops::cargo_compile::compile
  14: cargo::commands::build::exec
  15: cargo::cli::main
  16: cargo::main