Building the smallest possible binary of portlog

I wanted to build the smallest possible binary of portlog, because... I like small binaries? So, after much trial and error, my build command looked like this:

RUSTFLAGS="-C target-feature=+crt-static -Zlocation-detail=none" cargo +nightly build -Z build-std=std,panic_abort \
 --target x86_64-unknown-linux-gnu --release

And in Cargo.toml:

[profile.release]
lto = true
opt-level = "z"
strip=true

And on the binary:

upx --best portlog

Final result:

coolcoder613@coolcoder613-ThinkPad-T430:~/Repos/portlog$ ls -lh target/x86_64-unknown-linux-gnu/release/portlog
-rwxr-xr-x 1 501 dialout 224K Feb  9 16:14 target/x86_64-unknown-linux-gnu/release/portlog
coolcoder613@coolcoder613-ThinkPad-T430:~/Repos/portlog$ ls -l target/x86_64-unknown-linux-gnu/release/portlog
-rwxr-xr-x 1 501 dialout 229100 Feb  9 16:14 target/x86_64-unknown-linux-gnu/release/portlog

Original file:

coolcoder613@coolcoder613-ThinkPad-T430:~/Repos/portlog$ ls -lh target/x86_64-unknown-linux-gnu/debug/portlog
-rwxr-xr-x 1 501 dialout 11M Feb  9 16:25 target/x86_64-unknown-linux-gnu/debug/portlog
coolcoder613@coolcoder613-ThinkPad-T430:~/Repos/portlog$ ls -l target/x86_64-unknown-linux-gnu/debug/portlog
-rwxr-xr-x 1 501 dialout 10717312 Feb  9 16:25 target/x86_64-unknown-linux-gnu/debug/portlog