Additionally, in any case, now I know what I have to do to free up some space. Get rid of Rust projects I built from scratch.

Maybe something like this to figure out what directories to delete:

  # With dut
  find . -type f -name Cargo.toml -printf '%h\n' | sort -u | xargs -r -d '\n' -I{} dut -s {} | sort -h
  # With du
  find . -type f -name Cargo.toml -printf '%h\n' | sort -u | xargs -r du -sh | sort -h

I found "websocat" and "ripgrep". Thankfully I got rid of everything else.

  ripgrep $ cargo clean
     Removed 3411 files, 1020.2MiB total

  websocat $ cargo clean
     Removed 1726 files, 820.7MiB total

That said, ripgrep itself is only 5.0M.