thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { repr: Os { code: 6, message: "No such device or address" } }', /checkout/src/libco stack backtrace: 0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace at /checkout/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 1: std::sys_common::backtrace::print at /checkout/src/libstd/sys_common/backtrace.rs:68 at /checkout/src/libstd/sys_common/backtrace.rs:57 2: std::panicking::default_hook::{{closure}} at /checkout/src/libstd/panicking.rs:381 3: std::panicking::default_hook at /checkout/src/libstd/panicking.rs:397 4: std::panicking::rust_panic_with_hook at /checkout/src/libstd/panicking.rs:577 5: std::panicking::begin_panic at /checkout/src/libstd/panicking.rs:538 6: std::panicking::begin_panic_fmt at /checkout/src/libstd/panicking.rs:522 7: rust_begin_unwind at /checkout/src/libstd/panicking.rs:498 8: core::panicking::panic_fmt at /checkout/src/libcore/panicking.rs:71 9: core::result::unwrap_failed at /checkout/src/libcore/macros.rs:23 10: <core::result::Result<T, E>>::unwrap at /checkout/src/libcore/result.rs:782 11: plato::frontlight::natural::NaturalFrontlight::set at src/frontlight/natural.rs:90 12: plato::frontlight::natural::NaturalFrontlight::update at src/frontlight/natural.rs:112 13: <plato::frontlight::natural::NaturalFrontlight as plato::frontlight::Frontlight>::set_intensity at src/frontlight/natural.rs:121 14: plato::app::run at src/app.rs:142 15: plato::main at /home/ice/projects/plato/<quick_main macros>:4 16: std::rt::lang_start::{{closure}} at /checkout/src/libstd/rt.rs:74 17: std::panicking::try::do_call at /checkout/src/libstd/rt.rs:59 at /checkout/src/libstd/panicking.rs:480 18: __rust_maybe_catch_panic at /checkout/src/libpanic_unwind/lib.rs:101 19: std::rt::lang_start_internal at /checkout/src/libstd/panicking.rs:459 at /checkout/src/libstd/panic.rs:365 at /checkout/src/libstd/rt.rs:58 20: std::rt::lang_start at /checkout/src/libstd/rt.rs:74 21: main 22: __libc_start_main