stats-webpack-plugin produces deprecation warning with webpack v5

[lucaswerkmeister]

To reproduce in a minimal project:

git clone https://github.com/lucaswerkmeister/repro-stats-webpack-plugin-webpack5.git
cd repro-stats-webpack-plugin-webpack5
npm install
npm run build

The result looks like this:

> repro-stats-webpack-plugin-webpack5@1.0.0 build /tmp/repro-stats-webpack-plugin-webpack5                                                        
> node --trace-deprecation node_modules/.bin/webpack                                                                                              

(node:54335) [DEP_WEBPACK_COMPILATION_ASSETS] DeprecationWarning: Compilation.assets will be frozen in future, all modifications are deprecated.  
BREAKING CHANGE: No more changes should happen to Compilation.assets after sealing the Compilation.                                               
        Do changes to assets earlier, e. g. in Compilation.hooks.processAssets.                                                                   
        Make sure to select an appropriate stage from Compilation.PROCESS_ASSETS_STAGE_*.
    at /tmp/repro-stats-webpack-plugin-webpack5/node_modules/stats-webpack-plugin/index.js:21:32
    at Hook.eval [as callAsync] (eval at create (/tmp/repro-stats-webpack-plugin-webpack5/node_modules/tapable/lib/HookCodeFactory.js:33:10), <anonymous>:7:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (/tmp/repro-stats-webpack-plugin-webpack5/node_modules/tapable/lib/Hook.js:18:14)
    at Compiler.emitAssets (/tmp/repro-stats-webpack-plugin-webpack5/node_modules/webpack/lib/Compiler.js:763:19)
    at /tmp/repro-stats-webpack-plugin-webpack5/node_modules/webpack/lib/Compiler.js:412:10
    at processTicksAndRejections (node:internal/process/task_queues:75:11)
[webpack-cli] Compilation finished
asset stats.json 3.59 KiB [compared for emit]
asset main.js 0 bytes [compared for emit] [minimized] (name: main)
./src/index.js 1 bytes [built] [code generated]
webpack 5.3.1 compiled successfully in 169 ms

[jackqqxu]

same problem