Rust launch profile fails to autogenerate correctly ... | rust-lang/rust-analyzer

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Type: Bug

Context: Ubuntu 22.04

Install VSCode via snap following the instructions on https://code.visualstudio.com/docs/setup/linux
Install rust-analyzer and CodeLLDB extensions
Create a new Rust project following https://code.visualstudio.com/docs/languages/rust#_hello-world
Attempt to Follow steps under https://code.visualstudio.com/docs/languages/rust#_using-rust-analyzer-debug
4.1 On debug, there is no launch config, you are prompted to create one via CodeLLDB
4.2 The launch config fails with a cryptic error message (error code 101). On examination, the profile in launch.json seems incomplete.

Workaround steps:

Uninstall VS Code snap (sudo snap remove code)
Install VS Code via deb following the instructions on https://code.visualstudio.com/docs/setup/linux
Open up launch.json, delete the broken launch config
Follow steps under "Using Rust Analyzer: Debug"
This time, a different dialog appears offering to autogenerate a launch config from Cargo.toml. A very different launch config is created; it works.

Extension version: 0.3.1730
VS Code version: Code 1.84.2 (1a5daa3a0231a0fbba4f14db7ec463cf99d7768e, 2023-11-09T10:50:47.800Z)
OS version: Linux x64 5.15.0-88-generic
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 5 3400G with Radeon Vega Graphics (8 x 3700)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	0, 1, 1
Memory (System)	29.31GB (25.90GB free)
Process Argv	. --crash-reporter-id f523a7ce-b33f-4dac-be74-dc7611b22e53
Screen Reader	no
VM	0%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	wayland

A/B Experiments

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pythonregdiag2:30871582
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pythontbext0:30879054
accentitlementst:30887150
dsvsc016cf:30886111
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aa_t_chat:30882232

Reproduce the issue on Ubuntu 22.04 with the VS Code snap, rust-analyzer, and CodeLLDB, then compare the generated launch.json with the working configuration from a deb installation. Done means the snap installation autogenerates a complete launch.json from Cargo.toml that debugs the Rust project successfully.

Written by the indexing model from the issue text.

Rust launch profile fails to autogenerate correctly when vscode installed via snap

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