thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" })', src/libcore/result.rs:999:5 stack backtrace: 0: backtrace::backtrace::libunwind::trace at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 1: backtrace::backtrace::trace_unsynchronized at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 2: std::sys_common::backtrace::_print at src/libstd/sys_common/backtrace.rs:47 3: std::sys_common::backtrace::print at src/libstd/sys_common/backtrace.rs:36 4: std::panicking::default_hook::{{closure}} at src/libstd/panicking.rs:200 5: std::panicking::default_hook at src/libstd/panicking.rs:214 6: std::panicking::rust_panic_with_hook at src/libstd/panicking.rs:477 7: std::panicking::continue_panic_fmt at src/libstd/panicking.rs:384 8: rust_begin_unwind at src/libstd/panicking.rs:311 9: core::panicking::panic_fmt at src/libcore/panicking.rs:85 10: core::result::unwrap_failed at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18 11: core::result::Result<T,E>::unwrap at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800 12: cucaracha::pwmled::PwmLed::new at src/pwmled.rs:40 13: cucaracha::main at src/main.rs:22 14: std::rt::lang_start::{{closure}} at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64 15: std::rt::lang_start_internal::{{closure}} at src/libstd/rt.rs:49 16: std::panicking::try::do_call at src/libstd/panicking.rs:296 17: __rust_maybe_catch_panic at src/libpanic_unwind/lib.rs:82 18: std::panicking::try at src/libstd/panicking.rs:275 19: std::panic::catch_unwind at src/libstd/panic.rs:394 20: std::rt::lang_start_internal at src/libstd/rt.rs:48 21: std::rt::lang_start at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64 22: main 23: __libc_start_main