No panic on symbol lookup fail #13281

Job	Run time
Check Rust code with rustfmt and clippy	9s
Ensure compilation on various targets	10m 8s
Run rust tests (macos-latest)	5m 17s
Run snippets and cpython tests (macos-latest)	16m 15s
Run rust tests (ubuntu-latest)	4m 57s
Run snippets and cpython tests (ubuntu-latest)	18m 1s
Run tests under miri	3m 6s
Run rust tests (windows-latest)	14m 7s
Run snippets and cpython tests (windows-latest)	24m 16s
Check the WASM package and demo	3m 38s
Run snippets and cpython tests on wasm-wasi	2m 7s
	1h 42m 1s

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