It works fine (i.e. we get the expected error) if the memory is allocated during the runtime with the grow instruction but it crashes when the memory is allocated from the memory section.

The panic is not great since it will crash the PHP process that started the call.

Easiest way to reproduce is with the following minimal WAT file:

(module
  (memory 65536)
)

Trace:

thread 'tests::tests::wasm_module_allocate_too_much_memory' panicked at src/lib.rs:208:10:
Failed to instantiate imported instance: memory minimum size of 65536 pages exceeds memory limits
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'tests::tests::wasm_module_allocate_too_much_memory' panicked at core/src/panicking.rs:221:5:
panic in a function that cannot unwind