[Dart Analyzer] Dart 3.10.1 High Memory and CPU usage

[jlnrrg]

Issue

Just having VSCode open brings the the CPU and Memory Usage to the maximum. This did not happen when using 3.10.0, but now switching the devenv nix channel to the latest 25.11 pulls dart 3.10.1 with the above issue.

As NixOS and everything related is a seperate issue alltogether, I am not quite sure the issue is caused by dart alone, or if there is some dependency issue somewhere. So if someone else could confirm this. That would already help.

Information

Flutter Doctor

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.38.3, on NixOS 25.05 (Warbler) 6.12.59, locale
    en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version
    36.0.0)
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[✓] Connected device (2 available)
[✓] Network resources

Steps

1. (I use devenv.sh to download the Flutter dependencies. Not sure if that is relevant.)
2. flutter create --no-pub --platforms=linux -e . to create the project
3. code . to open vscode

Example Repo

typst_filler

Related Issue

#47635