curl https://sh.rustup.rs -sSf --output rustup.sh
sh rustup.sh --default-toolchain nightly -y
info: downloading installer
error: $HOME differs from euid-obtained home directory: you may be using sudo
error: $HOME directory: /
error: euid-obtained home directory: /root
info: profile set to 'default'
info: default host triple is x86_64-unknown-freebsd
info: syncing channel updates for 'nightly-x86_64-unknown-freebsd'
info: latest update on 2025-04-11, rust version 1.88.0-nightly (0fe8f3454 2025-04-10)
info: downloading component 'cargo'
info: downloading component 'clippy'
info: downloading component 'rust-docs'
info: downloading component 'rust-std'
info: downloading component 'rustc'
info: downloading component 'rustfmt'
info: installing component 'cargo'
info: installing component 'clippy'
info: installing component 'rust-docs'
info: installing component 'rust-std'
info: installing component 'rustc'
info: installing component 'rustfmt'
info: default toolchain set to 'nightly-x86_64-unknown-freebsd'

  nightly-x86_64-unknown-freebsd installed - rustc 1.88.0-nightly (0fe8f3454 2025-04-10)


Rust is installed now. Great!

To get started you may need to restart your current shell.
This would reload your PATH environment variable to include
Cargo's bin directory ($HOME/.cargo/bin).

To configure your current shell, you need to source
the corresponding env file under $HOME/.cargo.

This is usually done by running one of the following (note the leading DOT):
. "$HOME/.cargo/env"            # For sh/bash/zsh/ash/dash/pdksh
source "$HOME/.cargo/env.fish"  # For fish
source "$HOME/.cargo/env.nu"    # For nushell
. $HOME/.cargo/env
#!/bin/sh
# rustup shell setup
# affix colons on either side of $PATH to simplify matching
case ":${PATH}:" in
    *:"$HOME/.cargo/bin":*)
        ;;
    *)
        # Prepending path in case a system-installed rustc needs to be overridden
        export PATH="$HOME/.cargo/bin:$PATH"
        ;;
esac
rustup default nightly
Segmentation fault (core dumped)

Exit status: 139