Installed org.freedesktop.Sdk.Extension.rust-stable via flatpak
Installed rust-analyzer extension within code
rust-analyzer failed to start due to access error.
Failed to execute /home/userName/.var/app/com.visualstudio.code-oss/config/Code - OSS/User/globalStorage/matklad.rust-analyzer/rust-analyzer-x86_64-unknown-linux-gnu
Fixed by adding permission to rust-analyzer-x86_64-unknown-linux-gnu to be executable.
Should this file be set as executable when the extension is installed?