Is there a way to diasable caching crates?

I think I figured this out.

cd /media/user/1234

mkdir rust

wget https://static.rust-lang.org/rustup/dist/x86_64-unknown-linux-gnu/rustup-init > rustup-init

chmod +x rustup-init.1

CARGO_HOME=$PWD/rust/.cargo RUSTUP_HOME=$PWD/rust/.rustup ./rustup-init.1 --profile minimal --default-toolchain nightly

. "/media/user/1234/rust/.cargo/env"   

CARGO_HOME=$PWD/rust/.cargo RUSTUP_HOME=$PWD/rust/.rustup cargo --version

cargo 1.85.0-nightly (c86f4b3a1 2024-12-24)

CARGO_HOME=$PWD/rust/.cargo RUSTUP_HOME=$PWD/rust/.rustup cargo init --bin runjs

cd runjs

CARGO_HOME=../rust/.cargo RUSTUP_HOME=../rust/.rustup cargo run

Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.59s
     Running `target/debug/runjs`
Hello, world!

CARGO_HOME=../rust/.cargo RUSTUP_HOME=../rust/.rustup cargo add deno_core
    Updating crates.io index
      Adding deno_core v0.327.0 to dependencies

CARGO_HOME=../rust/.cargo RUSTUP_HOME=../rust/.rustup cargo add tokio --features=full
    Updating crates.io index
      Adding tokio v1.42.0 to dependencies

CARGO_HOME=../rust/.cargo RUSTUP_HOME=../rust/.rustup cargo run
    Compiling runjs v0.1.0 (/media/user/1234/runjs)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 22m 09s
     Running `target/debug/runjs`
Hello, world!