End of file removed when ruff run in a container as a PyCharm file watcher

[daveisfera]

Description

I'm using ruff to format Python code after it's been edited and when it's run as a file watcher by PyCharm, the end of the file is incorrectly removed at times. This has been happening to me for the entire time we've been using ruff and I thought it was a bug with PyCharm or ruff, but another person on my team just updated their Docker for the first time in a while and it started happening to them, so I think it's a file mounting problem

Reproduce

1. Setup Watcher to run ruff on file save in PyCharm
2. Edit a file
3. Observe the watcher running
4. Notice that sometimes the contents at the end of the file are remove incorrectly

Expected behavior

Mounted file doesn't lose data at the end

docker version

Client:
 Cloud integration: v1.0.35+desktop.13
 Version:           26.1.1
 API version:       1.45
 Go version:        go1.21.9
 Git commit:        4cf5afa
 Built:             Tue Apr 30 11:44:56 2024
 OS/Arch:           darwin/amd64
 Context:           desktop-linux

Server: Docker Desktop 4.30.0 (149282)
 Engine:
  Version:          26.1.1
  API version:      1.45 (minimum version 1.24)
  Go version:       go1.21.9
  Git commit:       ac2de55
  Built:            Tue Apr 30 11:48:28 2024
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.31
  GitCommit:        e377cd56a71523140ca6ae87e30244719194a521
 runc:
  Version:          1.1.12
  GitCommit:        v1.1.12-0-g51d5e94
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client:
 Version:    26.1.1
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.14.0-desktop.1
    Path:     /Users/dlj/.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.27.0-desktop.2
    Path:     /Users/dlj/.docker/cli-plugins/docker-compose
  debug: Get a shell into any image or container (Docker Inc.)
    Version:  0.0.29
    Path:     /Users/dlj/.docker/cli-plugins/docker-debug
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.2
    Path:     /Users/dlj/.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.23
    Path:     /Users/dlj/.docker/cli-plugins/docker-extension
  feedback: Provide feedback, right in your terminal! (Docker Inc.)
    Version:  v1.0.4
    Path:     /Users/dlj/.docker/cli-plugins/docker-feedback
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v1.1.0
    Path:     /Users/dlj/.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     /Users/dlj/.docker/cli-plugins/docker-sbom
  scout: Docker Scout (Docker Inc.)
    Version:  v1.8.0
    Path:     /Users/dlj/.docker/cli-plugins/docker-scout

Server:
 Containers: 7
  Running: 7
  Paused: 0
  Stopped: 0
 Images: 37
 Server Version: 26.1.1
 Storage Driver: overlayfs
  driver-type: io.containerd.snapshotter.v1
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: e377cd56a71523140ca6ae87e30244719194a521
 runc version: v1.1.12-0-g51d5e94
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
  cgroupns
 Kernel Version: 6.6.26-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 16
 Total Memory: 7.752GiB
 Name: docker-desktop
 ID: faac2988-5d22-4a25-a96d-4cfc05a665f3
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Labels:
  com.docker.desktop.address=unix:///Users/dlj/Library/Containers/com.docker.docker/Data/docker-cli.sock
 Experimental: false
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: daemon is not using the default seccomp profile

Diagnostics ID

F14EC0BF-E65E-45F4-B960-78F5BD1C8BD8/20240514042410

Additional Info

Is there a way to tell what the previous version of docker that was installed for my coworker to try and isolate the cause?