thread 'main' panicked at 'could not find parent of path /' #2587
Description
Well, somehow I hit the "never" error case.
Travis logs: https://travis-ci.org/nafi-lang/rust-nafi/jobs/359670126
$ cargo clippy -- -D clippy
thread 'main' panicked at 'could not find parent of path /', src/main.rs:137:48
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::print
at libstd/sys_common/backtrace.rs:71
at libstd/sys_common/backtrace.rs:59
2: std::panicking::default_hook::{{closure}}
at libstd/panicking.rs:207
3: std::panicking::default_hook
at libstd/panicking.rs:223
4: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:402
5: std::panicking::begin_panic_fmt
at libstd/panicking.rs:349
6: cargo_clippy::main::{{closure}}
7: cargo_clippy::main
8: std::rt::lang_start::{{closure}}
9: std::panicking::try::do_call
at libstd/rt.rs:59
at libstd/panicking.rs:306
10: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:102
11: std::rt::lang_start_internal
at libstd/panicking.rs:285
at libstd/panic.rs:361
at libstd/rt.rs:58
12: main
13: __libc_start_main
14: <unknown>