error: failed to run custom build command for `alsa-sys v0.3.1` Caused by: process didn't exit successfully: `/tmp/cargo-installf5UtwS/release/build/alsa-sys-9208af87e2460ff5/build-script-build` (exit status: 101) --- stdout cargo:rerun-if-env-changed=ALSA_NO_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG_x86_64-unknown-linux-gnu cargo:rerun-if-env-changed=PKG_CONFIG_x86_64_unknown_linux_gnu cargo:rerun-if-env-changed=HOST_PKG_CONFIG cargo:rerun-if-env-changed=PKG_CONFIG cargo:rerun-if-env-changed=ALSA_STATIC cargo:rerun-if-env-changed=ALSA_DYNAMIC cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH cargo:rerun-if-env-changed=PKG_CONFIG_PATH cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR --- stderr thread 'main' panicked at /home/oji/.cargo/registry/src/index.crates.io-6f17d22bba15001f/alsa-sys-0.3.1/build.rs:13:18: pkg-config exited with status code 1 > PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 pkg-config --libs --cflags alsa The system library `alsa` required by crate `alsa-sys` was not found. The file `alsa.pc` needs to be installed and the PKG_CONFIG_PATH environment variable must contain its parent directory. The PKG_CONFIG_PATH environment variable is not set. HINT: if you have installed the library, try setting PKG_CONFIG_PATH to the directory containing `alsa.pc`. note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace warning: build failed, waiting for other jobs to finish... error: failed to compile `bacon v3.9.0`, intermediate artifacts can be found at `/tmp/cargo-installf5UtwS`. To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.