Unable to build for raspberry pi 3

[thomas-tran]

I used Ubuntu 18 and try to build using the command below and hit the error

cargo build --release --target=armv7-unknown-linux-gnueabihf

error: failed to run custom build command for libdbus-sys v0.1.3

Caused by: process didn't exit successfully: /mnt/d/projects/wifi-connect/target/release/build/libdbus-sys-f6681de1b5dc5375/build-script-build (exit code: 101) --- stderr thread 'main' panicked at 'called Result::unwrap() on an Err value: CrossCompilation', /home/ttran/.cargo/registry/src/github.com-1ecc6299db9ec823/libdbus-sys-0.1.3/build.rs:6:5 note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

warning: build failed, waiting for other jobs to finish.