$ ~> env RUST_BACKTRACE=full cargo run | lolcat
Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Running `target/debug/rsmatrix`
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 25, kind: Uncategorized, message: "Inappropriate ioctl for device" }', src/main.rs:23:45
stack backtrace:
0: 0x558f169fd179 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc3295717f362dffd
1: 0x558f16a29e9e - core::fmt::write::h3fb106f148721ced
2: 0x558f16a0dbe5 - std::io::Write::write_fmt::hcd3b3704b0c53d27
3: 0x558f169fcf35 - std::sys_common::backtrace::print::hbd6a7285aab48741
4: 0x558f16a19c0f - std::panicking::default_hook::{{closure}}::h0f72cdacd638214c
5: 0x558f16a19935 - std::panicking::default_hook::hac258dc5dca473a9
6: 0x558f16a1a22f - std::panicking::rust_panic_with_hook::h2e8c0695c388bdee
7: 0x558f169fd4e9 - std::panicking::begin_panic_handler::{{closure}}::h192eca38cc2c43d2
8: 0x558f169fd2cc - std::sys_common::backtrace::__rust_end_short_backtrace::ha89f9e1a3bce7ed6
9: 0x558f16a19dc2 - rust_begin_unwind
10: 0x558f1681bb43 - core::panicking::panic_fmt::h35982a44ff3b9a81
11: 0x558f1681bf13 - core::result::unwrap_failed::h5b129c76c4e7fa25
12: 0x558f1682c0d0 - core::result::Result<T,E>::unwrap::hdb0d4ccdc0f51c74
at /build/rustc-1.67.0-src/library/core/src/result.rs:1113:23
13: 0x558f16837515 - rsmatrix::main::h9d79aa67271d1f79
at /home/qz/documents/programming/rsmatrix/src/main.rs:23:22
14: 0x558f1682ea2b - core::ops::function::FnOnce::call_once::h5e0d4bd6c1687546
at /build/rustc-1.67.0-src/library/core/src/ops/function.rs:507:5
15: 0x558f1684174e - std::sys_common::backtrace::__rust_begin_short_backtrace::hf5655ec6a326642f
at /build/rustc-1.67.0-src/library/std/src/sys_common/backtrace.rs:121:18
16: 0x558f16831ff1 - std::rt::lang_start::{{closure}}::hf5e5ac5a28667b6a
at /build/rustc-1.67.0-src/library/std/src/rt.rs:166:18
17: 0x558f16a0d064 - std::rt::lang_start_internal::hb4f207ee214b8528
18: 0x558f16831fca - std::rt::lang_start::h679e88f62834622a
at /build/rustc-1.67.0-src/library/std/src/rt.rs:165:17
19: 0x558f16837e0e - main
20: 0x7f2ae922924e - __libc_start_call_main
21: 0x7f2ae9229309 - __libc_start_main_alias_1
22: 0x558f1681c0b5 - _start
23: 0x0 - <unknown>
