Wasm-pack: RuntimeError: unreachable executed

[mikedilger]

🐛 Bug description

I'm using wasm-pack to build a wasm that generates an SVG on the fly. Code compiles with no error. The resulting wasm worked fine up until I added a line (and included chrono), and now the browser gives me "RuntimeError: unreachable executed" and I can inspect into the wasm to an unreachable statement.

🤔 Expected Behavior

Shouldn't be generating a wasm that can hit an unreachable statement.

👟 Steps to reproduce

See https://github.com/mikedilger/circular_calendar which I have just pushed for this bug report.

🌍 Your environment

wasm-pack version: 0.8.1
rustc version: 1.38.0

[mikedilger]

Now that I think of it, it's probably related to chrono and time.

[Pauan]

@mikedilger You should be using console_error_panic_hook, which will dramatically improve the error messages.

For chrono you need to enable the wasmbind feature.

[mikedilger]

Oh man is that valuable information! Thanks.