"No backend is available" error with examples

I am trying to build and run an example from piston.rs, here is the code fore reference:

extern crate piston_window;

use piston_window::*;

fn main() {
    let mut window: PistonWindow = 
        WindowSettings::new("Hello Piston!", [640, 480])
        .exit_on_esc(true).build().unwrap();
    while let Some(e) = window.next() {
        window.draw_2d(&e, |c, g| {
            clear([1.0; 4], g);
            rectangle([1.0, 0.0, 0.0, 1.0], // red
                      [0.0, 0.0, 100.0, 100.0],
                      c.transform, g);
        });
    }
}

but get error:

     Running `target/debug/example`
thread 'main' panicked at 'No backend is available', /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.12.0/src/platform/linux/mod.rs:356:9
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1: std::sys_common::backtrace::print
             at libstd/sys_common/backtrace.rs:71
             at libstd/sys_common/backtrace.rs:59
   2: std::panicking::default_hook::{{closure}}
             at libstd/panicking.rs:211
   3: std::panicking::default_hook
             at libstd/panicking.rs:227
   4: std::panicking::rust_panic_with_hook
             at libstd/panicking.rs:475
   5: std::panicking::begin_panic
             at /checkout/src/libstd/panicking.rs:409
   6: winit::platform::platform::EventsLoop::new
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.12.0/src/platform/linux/mod.rs:356
   7: winit::EventsLoop::new
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.12.0/src/lib.rs:195
   8: glutin_window::GlutinWindow::new
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/pistoncore-glutin_window-0.47.0/src/lib.rs:102
   9: <glutin_window::GlutinWindow as window::BuildFromWindowSettings>::build_from_window_settings
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/pistoncore-glutin_window-0.47.0/src/lib.rs:449
  10: window::WindowSettings::build
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/pistoncore-window-0.32.0/src/lib.rs:392
  11: <piston_window::PistonWindow<W> as window::BuildFromWindowSettings>::build_from_window_settings
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/piston_window-0.80.0/src/lib.rs:152
  12: window::WindowSettings::build
             at /home/user/.local/share/cargo/registry/src/github.com-1ecc6299db9ec823/pistoncore-window-0.32.0/src/lib.rs:392
  13: example::main
             at src/main.rs:96
  14: std::rt::lang_start::{{closure}}
             at /checkout/src/libstd/rt.rs:74
  15: std::panicking::try::do_call
             at libstd/rt.rs:59
             at libstd/panicking.rs:310
  16: __rust_maybe_catch_panic
             at libpanic_unwind/lib.rs:106
  17: std::rt::lang_start_internal
             at libstd/panicking.rs:289
             at libstd/panic.rs:392
             at libstd/rt.rs:58
  18: std::rt::lang_start
             at /checkout/src/libstd/rt.rs:74
  19: main
  20: __libc_start_main
  21: _start
             at ../sysdeps/x86_64/start.S:120

I am running NixOS, so problem may be with dynamically loading libraries. Is there a way to find out which
libs do I need?

As far as I can understand the problem is in XConnection::new function:

    pub fn new(error_handler: XErrorHandler) -> Result<XConnection, XNotSupported> {
        // opening the libraries
        let xlib = try!(ffi::Xlib::open());
        let xcursor = try!(ffi::Xcursor::open());
        let xrandr = try!(ffi::Xrandr_2_2_0::open());
        let xrandr_1_5 = ffi::Xrandr::open().ok();
        let xinput2 = try!(ffi::XInput2::open());
        let xlib_xcb = try!(ffi::Xlib_xcb::open());

        unsafe { (xlib.XInitThreads)() };
        unsafe { (xlib.XSetErrorHandler)(error_handler) };

        // calling XOpenDisplay
        let display = unsafe {
            let display = (xlib.XOpenDisplay)(ptr::null());
            if display.is_null() {
                return Err(XNotSupported::XOpenDisplayFailed);
            }
            display
        };

        Ok(XConnection {
            xlib: xlib,
            xrandr: xrandr,
            xrandr_1_5: xrandr_1_5,
            xcursor: xcursor,
            xinput2: xinput2,
            xlib_xcb: xlib_xcb,
            display: display,
            latest_error: Mutex::new(None),
        })
    }

I've tried to explicitly "install" all mentioned libs via nix-shell -p "[x11 gcc] ++ (with xorg; [libXcursor xrandr xinput libxcb])", but got the same error as above.

Start with the example failure at src/main.rs:96 and the Linux backend panic reported at winit-0.12.0/src/platform/linux/mod.rs:356. Inspect XConnection::new and the listed dynamically loaded libraries, then reproduce the example in NixOS to determine whether the missing backend is caused by library loading or XOpenDisplay; done means documenting a confirmed cause and required setup.