unused import: `super::gas::Atmosphere`

unused variable: `command_channel`

method `surface_area` is never used

function `sphere_surface_area` is never used

function `gross_lift` is never used

function `free_lift` is never used

methods `set_temperature`, `set_mass_from_volume`, `temperature`, and `mass` are never used

function `absorbed` is never used

struct `Bus` is never constructed

Process completed with exit code 101.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/cache@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.