cargo build --target wasm32-unknown-emscripten works on the master branch (compiles, although it fails at runtime for other reasons: #760 #767) but fails on the eventloop-2.0 branch:
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Would ultimately like to use the wasm32-unknown-unknown backend once/if it is supported by #395 #845, I had a temporary workaround in iceiix#2 to compile (but not run) for wasm32-unknown-unknown by reusing the emscripten backend, attempted to port to eventloop-2.0 in iceiix#3 but found it was failing to build even without my changes.