I can't figure out how to build

[AmyGilhespy]

Please add instructions on building this demo :)

I'm stuck here:

[amy@arch Bevypunk]$ cargo run
   Compiling game_loading v0.0.1 (/home/amy/Documents/GameDev/Bevy/Bevypunk/crates/game_loading)
   Compiling game_cameras v0.0.1 (/home/amy/Documents/GameDev/Bevy/Bevypunk/crates/game_cameras)
   Compiling game_vfx v0.0.1 (/home/amy/Documents/GameDev/Bevy/Bevypunk/crates/game_vfx)
   Compiling game_movies v0.0.1 (/home/amy/Documents/GameDev/Bevy/Bevypunk/crates/game_movies)
error: failed to find a `codegen-backends` folder in the sysroot candidates:
       * /home/amy/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu

error: could not compile `game_loading` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `game_cameras` (lib) due to 1 previous error
error: could not compile `game_vfx` (lib) due to 1 previous error
error: could not compile `game_movies` (lib) due to 1 previous error
[amy@arch Bevypunk]$ ls ~/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu
bin  codegen-backends  etc  lib  libexec  share
[amy@arch Bevypunk]$