error[E0277]: the trait bound `&mut syn::Field: quote::ToTokens` is not satisfied

The Rust code is failing to compile in my fresh install of this template. I’m using rustc 1.31.0-nightly (5af0bb830 2018-10-10) and wasm-pack 0.5.1. I first did npm init rust-webpack, then npm i, and now I’m getting this when running npm start:

attila@Attila-Pentium:/c/0/rust-webassembly/my-app (master) $ npm startnpm start

> create-rust-webpack@0.1.3 start C:\0\rust-webassembly\my-app
> webpack-dev-server -d

🧐  Checking for wasm-pack...

✅  wasm-pack is installed.

ℹ️  Compiling your crate...

i ｢wds｣: Project is running at http://localhost:8080/
i ｢wds｣: webpack output is served from /
i ｢wds｣: Content not from webpack is served from C:\0\rust-webassembly\my-app\dist
wasm-pack error: Compiling your crate to WebAssembly
Caused by: Process exited with exit code: 101: `cargo build` did not exit successfully.

stdout:

stderr:

   Compiling wasm-bindgen-macro-support v0.2.25
error[E0277]: the trait bound `&mut syn::Field: quote::ToTokens` is not satisfied
   --> C:\Users\attila\.cargo\registry\src\github.com-1ecc6299db9ec823\wasm-bindgen-macro-support-0.2.25\src\parser.rs:376:44
    |
376 |                 assert_not_variadic(&opts, &field)?;
    |                                            -^^^^^
    |                                            |
    |                                            the trait `quote::ToTokens` is not implemented for `&mut syn::Field`
    |                                            help: consider removing 1 leading `&`-references
    |
    = help: the following implementations were found:
              <syn::Field as quote::ToTokens>
    = note: required for the cast to the object type `dyn quote::ToTokens`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
error: Could not compile `wasm-bindgen-macro-support`.

To learn more, run the command again with --verbose.


× ｢wdm｣: Hash: 4a39adb79ad381d877fa
Version: webpack 4.20.2
Time: 1476ms
Built at: 2018-10-17 11:27:41
     Asset       Size  Chunks             Chunk Names
 bundle.js    837 KiB    main  [emitted]  main
index.html  272 bytes          [emitted]
Entrypoint main = bundle.js
[./js/index.js] 60 bytes {main} [built]
[./node_modules/ansi-html/index.js] 4.16 KiB {main} [built]
[./node_modules/events/events.js] 8.13 KiB {main} [built]
[./node_modules/html-entities/index.js] 231 bytes {main} [built]
[./node_modules/loglevel/lib/loglevel.js] 7.68 KiB {main} [built]
[./node_modules/querystring-es3/index.js] 127 bytes {main} [built]
[./node_modules/strip-ansi/index.js] 161 bytes {main} [built]
[./node_modules/url/url.js] 22.8 KiB {main} [built]
[./node_modules/webpack-dev-server/client/index.js?http://localhost:8080] (webpack)-dev-server/client?http://localhost:8080 7.78 KiB {main} [built]
[./node_modules/webpack-dev-server/client/overlay.js] (webpack)-dev-server/client/overlay.js 3.58 KiB {main} [built]
[./node_modules/webpack-dev-server/client/socket.js] (webpack)-dev-server/client/socket.js 1.05 KiB {main} [built]
[0] multi (webpack)-dev-server/client?http://localhost:8080 ./js/index.js 40 bytes {main} [built]
[./node_modules/webpack/hot sync ^\.\/log$] (webpack)/hot sync nonrecursive ^\.\/log$ 170 bytes {main} [built]
[./node_modules/webpack/hot/emitter.js] (webpack)/hot/emitter.js 77 bytes {main} [built]
[./node_modules/webpack/hot/log.js] (webpack)/hot/log.js 1.11 KiB {main} [optional] [built]
    + 11 hidden modules

ERROR in ./js/index.js
Module not found: Error: Can't resolve '../crate/pkg' in 'C:\0\rust-webassembly\my-app\js'
 @ ./js/index.js 1:0-22
 @ multi (webpack)-dev-server/client?http://localhost:8080 ./js/index.js
Child html-webpack-plugin for "index.html":
     1 asset
    Entrypoint undefined = index.html
    [./node_modules/html-webpack-plugin/lib/loader.js!./index.html] 419 bytes {0} [built]
    [./node_modules/lodash/lodash.js] 527 KiB {0} [built]
    [./node_modules/webpack/buildin/global.js] (webpack)/buildin/global.js 509 bytes {0} [built]
    [./node_modules/webpack/buildin/module.js] (webpack)/buildin/module.js 519 bytes {0} [built]
i ｢wdm｣: Failed to compile.

[fitzgen]

Have you tried

rustup update nightly
cargo update

?

[fitzgen]

@rsmelo @amcsi if you run wasm-pack build in the crate directory, does that execute OK?

@xtuc @sendilkumarn is the wasm-pack plugin running with -m no-install? If so, that shouldn’t be necessary anymore, since wasm-pack build will automatically determine if installing wasm-bindgen is unnecessary since 0.5.0.