Incompatibility with @swc/core@>=1.3.57

[ph-fritsche]

When transforming

    export const foo = 'bar';
    export const baz = () => console.log('baz');

the plugin causes an error:

thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: LayoutError', /Users/ojkwon/.cargo/registry/src/github.com-1ecc6299db9ec823/rkyv-0.7.41/src/impls/core/mod.rs:266:36
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread '<unnamed>' panicked at 'failed to invoke plugin: failed to invoke plugin on 'None'

Caused by:
    0: failed to invoke `swc-plugin-coverage-instrument` as js transform plugin at node_modules/swc-plugin-coverage-instrument/target/wasm32-wasi/release/swc_plugin_coverage.wasm
    1: RuntimeError: unreachable
           at __rust_start_panic (<module>[3758]:0x2482a5)
           at rust_panic (<module>[3753]:0x248031)
           at std::panicking::rust_panic_with_hook::hc938c0552bc648ce (<module>[3752]:0x248000)
           at std::panicking::begin_panic_handler::{{closure}}::h4d01c9a24b253a57 (<module>[3739]:0x2471a0)
           at std::sys_common::backtrace::__rust_end_short_backtrace::hfd66980d7bb1538d (<module>[3738]:0x2470cd)
           at rust_begin_unwind (<module>[3747]:0x2478a2)
           at core::panicking::panic_fmt::h8d02db942d8b9e8f (<module>[3891]:0x255ca8)
           at core::result::unwrap_failed::h806695779fe36d9c (<module>[3942]:0x25c8cc)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h4f0e170b30395b1b (<module>[1034]:0xd3471)
           at swc_ecma_ast::decl::_::<impl rkyv::Deserialize<swc_ecma_ast::decl::Decl,__D> for <swc_ecma_ast::decl::Decl as rkyv::Archive>::Archived>::deserialize::h51e26d8c14c5e0b3 (<module>[1088]:0xea3aa)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h14fb66356c68e997 (<module>[1045]:0xd4fa9)thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: LayoutError', /Users/ojkwon/.cargo/registry/src/github.com-1ecc6299db9ec823/rkyv-0.7.41/src/impls/core/mod.rs:266:36
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread '<unnamed>' panicked at 'failed to invoke plugin: failed to invoke plugin on 'None'

Caused by:
    0: failed to invoke `swc-plugin-coverage-instrument` as js transform plugin at node_modules/swc-plugin-coverage-instrument/target/wasm32-wasi/release/swc_plugin_coverage.wasm
    1: RuntimeError: unreachable
           at __rust_start_panic (<module>[3758]:0x2482a5)
           at rust_panic (<module>[3753]:0x248031)
           at std::panicking::rust_panic_with_hook::hc938c0552bc648ce (<module>[3752]:0x248000)
           at std::panicking::begin_panic_handler::{{closure}}::h4d01c9a24b253a57 (<module>[3739]:0x2471a0)
           at std::sys_common::backtrace::__rust_end_short_backtrace::hfd66980d7bb1538d (<module>[3738]:0x2470cd)
           at rust_begin_unwind (<module>[3747]:0x2478a2)
           at core::panicking::panic_fmt::h8d02db942d8b9e8f (<module>[3891]:0x255ca8)
           at core::result::unwrap_failed::h806695779fe36d9c (<module>[3942]:0x25c8cc)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h4f0e170b30395b1b (<module>[1034]:0xd3471)
           at swc_ecma_ast::decl::_::<impl rkyv::Deserialize<swc_ecma_ast::decl::Decl,__D> for <swc_ecma_ast::decl::Decl as rkyv::Archive>::Archived>::deserialize::h51e26d8c14c5e0b3 (<module>[1088]:0xea3aa)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h14fb66356c68e997 (<module>[1045]:0xd4fa9)
           at swc_common::plugin::serialized::PluginSerializedBytes::deserialize::h60c2d9119f49ea3d (<module>[1043]:0xd42b3)
           at swc_common::plugin::serialized::deserialize_from_ptr::haa90725f1e646b8f (<module>[1042]:0xd4072)
           at __transform_plugin_process_impl (<module>[745]:0x90260)
           at __transform_plugin_process_impl.command_export (<module>[4059]:0x26427f)', /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/swc-0.260.46/src/plugin.rs:219:14
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
node:internal/process/esm_loader:97
    internalBinding('errors').triggerUncaughtException(
                              ^

[Error: failed to handle: failed to invoke plugin: failed to invoke plugin on 'None'

Caused by:
    0: failed to invoke `swc-plugin-coverage-instrument` as js transform plugin at node_modules/swc-plugin-coverage-instrument/target/wasm32-wasi/release/swc_plugin_coverage.wasm
    1: RuntimeError: unreachable
           at __rust_start_panic (<module>[3758]:0x2482a5)
           at rust_panic (<module>[3753]:0x248031)
           at std::panicking::rust_panic_with_hook::hc938c0552bc648ce (<module>[3752]:0x248000)
           at std::panicking::begin_panic_handler::{{closure}}::h4d01c9a24b253a57 (<module>[3739]:0x2471a0)
           at std::sys_common::backtrace::__rust_end_short_backtrace::hfd66980d7bb1538d (<module>[3738]:0x2470cd)
           at rust_begin_unwind (<module>[3747]:0x2478a2)
           at core::panicking::panic_fmt::h8d02db942d8b9e8f (<module>[3891]:0x255ca8)
           at core::result::unwrap_failed::h806695779fe36d9c (<module>[3942]:0x25c8cc)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h4f0e170b30395b1b (<module>[1034]:0xd3471)
           at swc_ecma_ast::decl::_::<impl rkyv::Deserialize<swc_ecma_ast::decl::Decl,__D> for <swc_ecma_ast::decl::Decl as rkyv::Archive>::Archived>::deserialize::h51e26d8c14c5e0b3 (<module>[1088]:0xea3aa)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h14fb66356c68e997 (<module>[1045]:0xd4fa9)
           at swc_common::plugin::serialized::PluginSerializedBytes::deserialize::h60c2d9119f49ea3d (<module>[1043]:0xd42b3)
           at swc_common::plugin::serialized::deserialize_from_ptr::haa90725f1e646b8f (<module>[1042]:0xd4072)
           at __transform_plugin_process_impl (<module>[745]:0x90260)
           at __transform_plugin_process_impl.command_export (<module>[4059]:0x26427f)] {
  code: 'GenericFailure'
}
           at swc_common::plugin::serialized::PluginSerializedBytes::deserialize::h60c2d9119f49ea3d (<module>[1043]:0xd42b3)
           at swc_common::plugin::serialized::deserialize_from_ptr::haa90725f1e646b8f (<module>[1042]:0xd4072)
           at __transform_plugin_process_impl (<module>[745]:0x90260)
           at __transform_plugin_process_impl.command_export (<module>[4059]:0x26427f)', /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/swc-0.260.46/src/plugin.rs:219:14
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
node:internal/process/esm_loader:97
    internalBinding('errors').triggerUncaughtException(
                              ^

[Error: failed to handle: failed to invoke plugin: failed to invoke plugin on 'None'

Caused by:
    0: failed to invoke `swc-plugin-coverage-instrument` as js transform plugin at node_modules/swc-plugin-coverage-instrument/target/wasm32-wasi/release/swc_plugin_coverage.wasm
    1: RuntimeError: unreachable
           at __rust_start_panic (<module>[3758]:0x2482a5)
           at rust_panic (<module>[3753]:0x248031)
           at std::panicking::rust_panic_with_hook::hc938c0552bc648ce (<module>[3752]:0x248000)
           at std::panicking::begin_panic_handler::{{closure}}::h4d01c9a24b253a57 (<module>[3739]:0x2471a0)
           at std::sys_common::backtrace::__rust_end_short_backtrace::hfd66980d7bb1538d (<module>[3738]:0x2470cd)
           at rust_begin_unwind (<module>[3747]:0x2478a2)
           at core::panicking::panic_fmt::h8d02db942d8b9e8f (<module>[3891]:0x255ca8)
           at core::result::unwrap_failed::h806695779fe36d9c (<module>[3942]:0x25c8cc)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h4f0e170b30395b1b (<module>[1034]:0xd3471)
           at swc_ecma_ast::decl::_::<impl rkyv::Deserialize<swc_ecma_ast::decl::Decl,__D> for <swc_ecma_ast::decl::Decl as rkyv::Archive>::Archived>::deserialize::h51e26d8c14c5e0b3 (<module>[1088]:0xea3aa)
           at rkyv::impls::core::<impl rkyv::DeserializeUnsized<[U],D> for [T]>::deserialize_unsized::h14fb66356c68e997 (<module>[1045]:0xd4fa9)
           at swc_common::plugin::serialized::PluginSerializedBytes::deserialize::h60c2d9119f49ea3d (<module>[1043]:0xd42b3)
           at swc_common::plugin::serialized::deserialize_from_ptr::haa90725f1e646b8f (<module>[1042]:0xd4072)
           at __transform_plugin_process_impl (<module>[745]:0x90260)
           at __transform_plugin_process_impl.command_export (<module>[4059]:0x26427f)] {
  code: 'GenericFailure'
}

When transforming

    export default {
      foo: 'bar',
      baz: () => console.log('baz'),
    }

the plugin causes a segmentation fault:

[1]    29598 segmentation fault

---

Downgrading to @swc/core@1.3.56 resolves both errors.

[MattyBalaam]

Our CI has just passed a run with @swc/core v1.3.65 so perhaps this is now fixed?

EDIT: Spoke too soon, it had actually just hung so had not reported an error yet.