Readme example crashes with 'thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { raw_code: None, raw_os_message: None, kind: NotFound }', src/main.rs:8:36'

[chrissound]

I'm new to Rust so maybe doing something stupid. I'm using Nixos here, which might be the cause, I've got the following dependencies present (via a shell.nix):

{ pkgs ? import <nixos2305> {} }:
with pkgs; pkgs.mkShell {
  buildInputs = [ 
    xorg.libX11.dev
    xorg.libX11
    SDL2.dev
    SDL2
    pkg-config
    xorg.libXcursor
    xorg.libXcursor.dev
    xorg.libXrandr
    xorg.libXrandr.dev
    xorg.libXi
    xorg.libXi.dev
    rustc
    cargo
  ];
}

src/main.rs:

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(event) = window.next() {
        window.draw_2d(&event, |context, graphics, _device| {
            clear([1.0; 4], graphics);
            rectangle([1.0, 0.0, 0.0, 1.0], // red
                      [0.0, 0.0, 100.0, 100.0],
                      context.transform,
                      graphics);
        });
    }
}

Cargo.toml:

[package]
name = "elarust2"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
piston_window = "*"

I tried adding the following to Cargo.toml but no difference in output:

piston = "*"
piston2d-graphics = "*"
piston2d-opengl_graphics = "*"

[nix-shell:~/temp/wiptemp/1084/elarust2]$ cargo run
    Finished dev [unoptimized + debuginfo] target(s) in 0.08s
     Running `target/debug/elarust2`
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { raw_code: None, raw_os_message: None, kind: NotFound }', src/main.rs:8:36
stack backtrace:
   0:     0x55628a0a773a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1792633461806265
   1:     0x55628a0d9c9e - core::fmt::write::h86858dfe747be413
   2:     0x55628a0bbb35 - std::io::Write::write_fmt::h74e0842d6f1ebf1a
   3:     0x55628a0a7505 - std::sys_common::backtrace::print::h18201883e81727b4
   4:     0x55628a0bc4bf - std::panicking::default_hook::{{closure}}::he7684422edfb8e5d
   5:     0x55628a0bc185 - std::panicking::default_hook::h0f55305c4c7e7f71
   6:     0x55628a0bc988 - std::panicking::rust_panic_with_hook::hb89fb9ee5a2c564f
   7:     0x55628a0a8759 - std::panicking::begin_panic_handler::{{closure}}::hc641e1ce95f25c1f
   8:     0x55628a0a7846 - std::sys_common::backtrace::__rust_end_short_backtrace::h6a9bb70d00ab18d8
   9:     0x55628a0bc672 - rust_begin_unwind
  10:     0x5562899f9863 - core::panicking::panic_fmt::h71a20a5609c5aabf
  11:     0x5562899f9cf3 - core::result::unwrap_failed::h44ca259f10509f8c
  12:     0x556289a1053b - core::result::Result<T,E>::unwrap::h597331f170ca1393
                               at /build/rustc-1.69.0-src/library/core/src/result.rs:1090:23
  13:     0x556289a4cdbf - elarust2::main::h6a6936c4b3b0fe14
                               at /home/chris/temp/wiptemp/1084/elarust2/src/main.rs:7:9
  14:     0x556289a4125b - core::ops::function::FnOnce::call_once::hcbc02e36844dc013
                               at /build/rustc-1.69.0-src/library/core/src/ops/function.rs:250:5
  15:     0x556289a0313e - std::sys_common::backtrace::__rust_begin_short_backtrace::h5152bec71642b0be
                               at /build/rustc-1.69.0-src/library/std/src/sys_common/backtrace.rs:134:18
  16:     0x556289a371a1 - std::rt::lang_start::{{closure}}::hef2b4f7e56375f27
                               at /build/rustc-1.69.0-src/library/std/src/rt.rs:166:18
  17:     0x55628a0b19b8 - std::rt::lang_start_internal::h34bd518f25d68bbe
  18:     0x556289a3717a - std::rt::lang_start::ha7ae4e8c99368d61
                               at /build/rustc-1.69.0-src/library/std/src/rt.rs:165:17
  19:     0x556289a4cf2e - main
  20:     0x7f2e268b4b0e - __libc_start_call_main
  21:     0x7f2e268b4bc9 - __libc_start_main@@GLIBC_2.34
  22:     0x5562899f9db5 - _start
  23:                0x0 - <unknown>

cargo tree: https://gist.github.com/chrissound/425d0343bbd69290a9c45a2d0f1c1084

[chrissound]

Seems to be due to missing libgl according to strace:

recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
epoll_create1(EPOLL_CLOEXEC)            = 4
eventfd2(0, EFD_CLOEXEC|EFD_NONBLOCK)   = 5
epoll_ctl(4, EPOLL_CTL_ADD, 5, {events=EPOLLIN|EPOLLRDHUP|EPOLLET, data={u32=1, u64=1}}) = 0
epoll_ctl(4, EPOLL_CTL_ADD, 3, {events=EPOLLIN|EPOLLRDHUP|EPOLLET, data={u32=0, u64=0}}) = 0
poll([{fd=3, events=POLLIN|POLLOUT}], 1, -1) = 1 ([{fd=3, revents=POLLOUT}])
writev(3, [{iov_base="\203.\5\0\347\1\0\0\1\0\0\0\1\0\1\0\0\340\3\0\203.\5\0\347\1\0\0\1\0CK"..., iov_len=48}, {iov_base=NULL, iov_len=0}, {iov_base="", iov_len=0}], 3) = 48
poll([{fd=3, events=POLLIN}], 1, -1)    = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0010,\09\f\0\0\17\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 4096
recvfrom(3, "w\0\0\0x\0\0\0y\0\0\0z\0\0\0{\0\0\0|\0\0\0}\0\0\0~\0\0\0"..., 8452, 0, NULL, NULL) = 8452
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/bmfc7mrr7kilf45wpfd60davjaqfmagv-gcc-12.2.0-lib/lib/libGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/jd99cyc0251p0i5y69w8mqjcai8mcq7h-xgcc-12.2.0-libgcc/lib/libGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/bmfc7mrr7kilf45wpfd60davjaqfmagv-gcc-12.2.0-lib/lib/libGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/jd99cyc0251p0i5y69w8mqjcai8mcq7h-xgcc-12.2.0-libgcc/lib/libGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libEGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/bmfc7mrr7kilf45wpfd60davjaqfmagv-gcc-12.2.0-lib/lib/libEGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libEGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/jd99cyc0251p0i5y69w8mqjcai8mcq7h-xgcc-12.2.0-libgcc/lib/libEGL.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libEGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/bmfc7mrr7kilf45wpfd60davjaqfmagv-gcc-12.2.0-lib/lib/libEGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/whypqfa83z4bsn43n4byvmw80n4mg3r8-glibc-2.37-45/lib/libEGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/nix/store/jd99cyc0251p0i5y69w8mqjcai8mcq7h-xgcc-12.2.0-libgcc/lib/libEGL.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)