Create event loop panicked (winit)

[ngmisl]

Is there an existing issue for this?

• I have searched the existing issues.

What's the problem?

latest release on crates and brew:

thread 'main' panicked at /home/linuxbrew/.cache/Homebrew/cargo_cache/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.12.2/src/application.rs:119:10:
Create event loop: NotSupported(NotSupportedError)
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

How did you install the app?

installed from crates.io

Operating System

Linux

Additional context

No response

[GyulyVGC]

Hey @ngmisl, this seems to be an upstream issue.
The program is crashing at this line of the iced_winit dependency.
And this is the method that's causing the crash.

It's pretty weird that you're the first one to face this problem.
Can you please provide me with additional information about your OS and environment?

[GyulyVGC]

You also may find useful the following issue: rust-windowing/winit#3603

[ngmisl]

Hi,

I use linux

[GyulyVGC]

I'd need some more info:

• Distribution
• Architecture
• Window system

[jiliohuang]

I also encountered the same problem。
OS:ubuntu 22.04.4

sniffnet version: 1.3.1

Installation method：cargo install sniffnet --locked

start sniffnet error,

message:

thread 'main' panicked at /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.12.2/src/application.rs:119:10:

Create event loop: Os(OsError { line: 786, file: "/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.15/src/platform_impl/linux/mod.rs", error: Misc("neither WAYLAND_DISPLAY nor WAYLAND_SOCKET nor DISPLAY is set.") })

note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

After configuring environment variables
env setup:
export WAYLAND_DISPLAY=wayland-0
export WAYLAND_SOCKET=/run/user/1000/wayland-0
export DISPLAY=:0

error message:
thread 'main' panicked at /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.12.2/src/application.rs:119:10:
Create event loop: Os(OsError { line: 80, file: "/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.15/src/platform_impl/linux/wayland/event_loop/mod.rs", error: WaylandError(Connection(InvalidFd)) })
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

[Robert-Du0001]

I've also encountered the same problem.

[lcdss]

Same here on Arch Linux with Gnome (Wayland):

thread 'main' panicked at /build/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.12.2/src/application.rs:119:10:
Create event loop: Os(OsError { line: 80, file: "/build/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.15/src/platform_impl/linux/wayland/event_loop/mod.rs", error: WaylandError(Connection(NoCompositor)) })
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[ryukato]

Same there on Arch Linux

• kernel : Linux 6.12.10-arch1-1
• architecture: x86_64

FYI - command and logs

VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/intel_icd.x86_64.json && RUST_BACKTRACE=full  && ./target/debug/sniffnet

  /---------------------------------------------------------\
 |     _____           _    __    __                  _      |
 |    / ____|         (_)  / _|  / _|                | |     |
 |   | (___    _ __    _  | |_  | |_   _ __     ___  | |_    |
 |    \___ \  | '_ \  | | |  _| |  _| | '_ \   / _ \ | __|   |
 |    ____) | | | | | | | | |   | |   | | | | |  __/ | |_    |
 |   |_____/  |_| |_| |_| |_|   |_|   |_| |_|  \___|  \__|   |
 |                                                           |
 |                   ___________                             |
 |                  /___________\                            |
 |                 | ___________ |                           |
 |                 | |         | |                           |
 |                 | | v1.3.2  | |                           |
 |                 | |_________| |________________________   |
 |                 \_____________/   by Giuliano Bellini  )  |
 |                 / ''''''''''' \                       /   |
 |                / ::::::::::::: \                  =D-'    |
 |               (_________________)                         |
  \_________________________________________________________/
thread 'main' panicked at /home/yoonyoul/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.13.0/src/program.rs:192:10:
Create event loop: Os(OsError { line: 764, file: "/home/yoonyoul/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.30.8/src/platform_impl/linux/mod.rs", error: Misc("neither WAYLAND_DISPLAY nor WAYLAND_SOCKET nor DISPLAY is set.") })
stack backtrace:
   0:     0x5fcec8c92aaa - std::backtrace_rs::backtrace::libunwind::trace::hfe0e1def394da018
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x5fcec8c92aaa - std::backtrace_rs::backtrace::trace_unsynchronized::h96fbb6d117554616
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x5fcec8c92aaa - std::sys::backtrace::_print_fmt::he1169c6f8956325b
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:66:9
   3:     0x5fcec8c92aaa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha4a311b32f6b4ad8
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:39:26
   4:     0x5fcec8cbfeb3 - core::fmt::rt::Argument::fmt::h8ccd2627d2418ed3
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/rt.rs:177:76
   5:     0x5fcec8cbfeb3 - core::fmt::write::h1866771663f62b81
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/mod.rs:1189:21
   6:     0x5fcec8c8df43 - std::io::Write::write_fmt::hb549e7444823135e
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/io/mod.rs:1884:15
   7:     0x5fcec8c928f2 - std::sys::backtrace::BacktraceLock::print::hddd3a9918ce29aa7
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:42:9
   8:     0x5fcec8c93d7d - std::panicking::default_hook::{{closure}}::h791f75256b902d7d
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:268:22
   9:     0x5fcec8c93bc3 - std::panicking::default_hook::h82cc572fcb0d8cd7
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:295:9
  10:     0x5fcec6625863 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h40313a42a98921c4
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9
  11:     0x5fcec675b5f3 - sniffnet::main::{{closure}}::h84efd767195307df
                               at /home/yoonyoul/apps/sniffnet/src/main.rs:81:9
  12:     0x5fcec8c94428 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h80408f032954f187
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9
  13:     0x5fcec8c94428 - std::panicking::rust_panic_with_hook::he21644cc2707f2c4
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:809:13
  14:     0x5fcec8c941ea - std::panicking::begin_panic_handler::{{closure}}::h42f7c414fed3cad9
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:674:13
  15:     0x5fcec8c92f89 - std::sys::backtrace::__rust_end_short_backtrace::ha26cf5766b4e8c65
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:170:18
  16:     0x5fcec8c93e7c - rust_begin_unwind
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:665:5
  17:     0x5fcec63ca290 - core::panicking::panic_fmt::h74866b78e934b1c0
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panicking.rs:76:14
  18:     0x5fcec63ca776 - core::result::unwrap_failed::h899ed7ab2ccb8159
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1699:5
  19:     0x5fcec6570cc0 - core::result::Result<T,E>::expect::hdd5510aac3b02041
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1061:23
  20:     0x5fcec679792c - iced_winit::program::run::hfc3af38fa9b237df
                               at /home/yoonyoul/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced_winit-0.13.0/src/program.rs:190:22
  21:     0x5fcec665a6c6 - iced::program::Program::run_with::h679dca1f86bfc1e0
                               at /home/yoonyoul/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced-0.13.1/src/program.rs:177:12
  22:     0x5fcec64e3c1b - iced::application::Application<P>::run_with::hcbfd0eafc2f11cda
                               at /home/yoonyoul/.cargo/registry/src/index.crates.io-6f17d22bba15001f/iced-0.13.1/src/application.rs:176:9
  23:     0x5fcec66aba53 - sniffnet::main::h6296445f46eff2f3
                               at /home/yoonyoul/apps/sniffnet/src/main.rs:103:5
  24:     0x5fcec63ed9a2 - core::ops::function::FnOnce::call_once::h264ca52729ab3029
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5
  25:     0x5fcec67d4015 - std::sys::backtrace::__rust_begin_short_backtrace::h5d30cbc4fe4b2bed
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:154:18
  26:     0x5fcec6739ee6 - std::rt::lang_start::{{closure}}::h25a43355a7a53e31
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/rt.rs:195:18
  27:     0x5fcec8c85837 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h39b9ecdfe07c1b40
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:284:13
  28:     0x5fcec8c85837 - std::panicking::try::do_call::h195dec19c0e8d555
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40
  29:     0x5fcec8c85837 - std::panicking::try::h140b43e48373b310
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19
  30:     0x5fcec8c85837 - std::panic::catch_unwind::h82ff8b15455474e8
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14
  31:     0x5fcec8c85837 - std::rt::lang_start_internal::{{closure}}::h68d9606a782b08fd
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/rt.rs:174:48
  32:     0x5fcec8c85837 - std::panicking::try::do_call::h9b1efbc7212cd607
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40
  33:     0x5fcec8c85837 - std::panicking::try::h3c3a9bacfbed2ee5
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19
  34:     0x5fcec8c85837 - std::panic::catch_unwind::h92cc37461d0f445d
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14
  35:     0x5fcec8c85837 - std::rt::lang_start_internal::h78dd36c15a6b42b8
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/rt.rs:174:20
  36:     0x5fcec6739eba - std::rt::lang_start::h047b6b9b699967ab
                               at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/rt.rs:194:17
  37:     0x5fcec66abc8e - main
  38:     0x7294506cae08 - <unknown>
  39:     0x7294506caecc - __libc_start_main
  40:     0x5fcec63cac75 - _start
  41:                0x0 - <unknown>

[ryukato]

Oh.. I was stupid. Please ignore previous my comments. My Arch Linux was sever profiled, which does not have any GUI. So I installed and set up KDE plasma.
After that I can see sniffnet is up and running. :)

after the installation and setup, I checked the value from $XDG_SESSION_TYPE. that is wayland. :)

My reference for installation and setup KDE Plasma is https://itsfoss.com/install-kde-arch-linux/