Unable to run Rust unittests on binded library

Running Rust testing on binded library generate errors.

Reproduction:
https://github.com/ziv/node-bindgen-unitest-error-reproduction

Expected behavior:

Running tests should pass.

Actual behavior:

Error

 %  cargo test --verbose
 
    Compiling node-bindgen-unitest-error-reproduction v0.1.0 (...)
     Running `rustc ...`
error: cannot find attribute `node_bindgen` in this scope
 --> src/lib.rs:6:7
  |
6 |     #[node_bindgen]
  |       ^^^^^^^^^^^^

warning: unused import: `node_bindgen::derive::node_bindgen`
 --> src/lib.rs:1:5
  |
1 | use node_bindgen::derive::node_bindgen;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error: aborting due to previous error; 1 warning emitted

error: could not compile `node-bindgen-unitest-error-reproduction`

Caused by:
  process didn't exit successfully: `rustc --crate-name node_bindgen_unitest_error_reproduction --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 --test -C metadata=51601585b678e8bc -C extra-filename=-51601585b678e8bc --out-dir /Users/ziv.perry/zivcode/node-bindgen-unitest-error-reproduction/target/debug/deps -C incremental=/Users/ziv.perry/zivcode/node-bindgen-unitest-error-reproduction/target/debug/incremental -L dependency=/Users/ziv.perry/zivcode/node-bindgen-unitest-error-reproduction/target/debug/deps --extern node_bindgen=/Users/ziv.perry/zivcode/node-bindgen-unitest-error-reproduction/target/debug/deps/libnode_bindgen-553b1a9a13c1f95a.rlib -C link-arg=-undefined -C link-arg=dynamic_lookup` (exit status: 1)
 

Workaround

Removing #[node_bindgen] decorator works.
Example for output after commented the decorator:

 % cargo test
   Compiling node-bindgen-unitest-error-reproduction v0.1.0 (...)
    Finished test [unoptimized + debuginfo] target(s) in 0.91s
     Running unittests (target/debug/deps/node_bindgen_unitest_error_reproduction-51601585b678e8bc)

running 1 test
test testing::should_sum_numbers ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

Start with the linked reproduction repository and run cargo test --verbose to reproduce the failure in src/lib.rs. Inspect the node_bindgen import and attribute usage shown in the error. Done means the unit tests pass without removing the #[node_bindgen] decorator.