Error building container. Maybe Label devcontainer.metadata related

[yuu-misaki]

• VSCode Version: 1.89.0
• Local OS Version: Windows_NT x64 10.0.19045
• Remote OS Version: Ubuntu 20.04.2 LTS
• Remote Extension/Connection Type: Containers

• Logs:

[2024-05-08T07:36:20.350Z] 
[2024-05-08T07:36:20.377Z] ERROR: Service 'main' failed to build: failed to process "\"[ {\\\"id\\\":\\\"ghcr.io/devcontainers/features/common-utils:2\\\"}, {\\\"id\\\":\\\"ghcr.io/devcontainers/features/git:1\\\"}, {\\\"id\\\":\\\"ghcr.io/devcontainers/features/node:1\\\",\\\"customizations\\\":{\\\"vscode\\\":{\\\"extensions\\\":[\\\"dbaeumer.vscode-eslint\\\"]}}}, {\\\"id\\\":\\\"ghcr.io/devcontainers/features/python:1\\\",\\\"customizations\\\":{\\\"vscode\\\":{\\\"extensions\\\":[\\\"ms-python.python\\\",\\\"ms-python.vscode-pylance\\\"],\\\"settings\\\":{\\\"python.defaultInterpreterPath\\\":\\\"/usr/local/python/current/bin/python\\\"}}}}, {\\\"customizations\\\":{\\\"vscode\\\":{\\\"settings\\\":{\\\"python.defaultInterpreterPath\\\":\\\"/usr/local/bin/python\\\"}}},\\\"remoteUser\\\":\\\"vscode\\\"}, {\\\"id\\\":\\\"ghcr.io/devcontainers/features/docker-outside-of-docker:1\\\",\\\"entrypoint\\\":\\\"/usr/local/share/docker-init.sh\\\",\\\"mounts\\\":[{\\\"source\\\":\\\"/var/run/docker.sock\\\",\\\"target\\\":\\\"/var/run/docker-host.sock\\\",\\\"type\\\":\\\"bind\\\"}],\\\"customizations\\\":{\\\"vscode\\\":{\\\"extensions\\\":[\\\"ms-azuretools.vscode-docker\\\"]}}}, {\\\"id\\\":\\\"ghcr.io/devcontainers/features/git:1\\\"}, {\\\"postAttachCommand\\\":\\\"rm /home/vscode/.docker/config.json\\\",\\\"customizations\\\":{\\\"vscode\\\":{\\\"extensions\\\":[\\\"hediet.vscode-drawio\\\",\\\"yzhang.markdown-all-in-one\\\",\\\"bierner.github-markdown-preview\\\",\\\"bierner.markdown-mermaid\\\",\\\"jebbs.plantuml\\\",\\\"HashiCorp.terraform\\\",\\\"ms-vscode.makefile-tools\\\",\\\"ms-azuretools.vscode-docker\\\",\\\"saramorillon.terraform-graph\\\",\\\"ms-python.python\\\",\\\"ms-python.black-formatter\\\",\\\"matangover.mypy\\\",\\\"charliermarsh.ruff\\\",\\\"njpwerner.autodocstring\\\",\\\"ms-toolsai.jupyter\\\",\\\"tamasfe.even-better-toml\\\",\\\"ckolkman.vscode-postgres\\\",\\\"ms-vscode.vscode-typescript-next\\\",\\\"Vue.vscode-typescript-vue-plugin\\\",\\\"vuetifyjs.vuetify-vscode\\\",\\\"esbenp.prettier-vscode\\\",\\\"dbaeumer.vscode-eslint\\\",\\\"Vue.volar\\\",\\\"cedar-policy.vscode-cedar\\\",\\\"42Crunch.vscode-openapi\\\",\\\"mhutchie.git-graph\\\",\\\"h": unexpected end of statement while looking for matching double-quote

Steps to Reproduce:
I am sorry, but I cannot disclose all of the code because it is used for business purposes. I would like to give out as much information as possible, so I hope you will bear with me.

1. specify docker-compose.yml in devcontainer.json to launch 4 dockers and access one of them.
2. The build process succeeds until step 52/53, but an error occurs in devcontainer.metadata at step 53/53. I have not created devcontainer.metadata explicitly in either devcontainer.json, docker-compose.yml, or Dockerfile.

Does this issue occur when you try this locally?: Yes/No (I don't have a local environment that can reproduce the docker environment, so I can't take on the challenge.)
Does this issue occur when you try this locally and all extensions are disabled?: Yes/No (same as above)

Additional Information
Looks like the same error as the following issues.
#7339

1. It is closed because it was addressed in a downgrade of the devcontainer extension, but this time even several versions and downgrades could not address it.

2. I have put #escape= in the dockerfile but it does not resolve the issue.

3. The docker version is 24.0.1. I am interested in the comment "It looks like it doesn't accept the multi-line LABEL instruction." but I don't know how to enable it.

I would be very grateful if you could enlighten me.

[yuu-misaki]

@chrmarti
Is it going to be difficult to answer regarding the above? I am sorry for your busy schedule, but I would greatly appreciate it if you could respond to me. Best Regards

[chrmarti]

The label seems to be truncated. When you rebuild the container the log mentions a generated Dockerfile that you could check for the LABEL instruction. (F1 > Dev Containers: Show Container Log)