$DIR/backtrace-api.rs:21:59 (func_c)
$DIR/backtrace-api.rs:20:53 (func_b)
$DIR/backtrace-api.rs:19:50 (func_a)
$DIR/backtrace-api.rs:25:18 (main)
RUSTLIB/src/rust/library/core/src/ops/function.rs:LL:COL (<fn() as std::ops::FnOnce<()>>::call_once - shim(fn()))
RUSTLIB/src/rust/library/std/src/sys_common/backtrace.rs:LL:COL (std::sys_common::backtrace::__rust_begin_short_backtrace)
RUSTLIB/src/rust/library/std/src/rt.rs:LL:COL (std::rt::lang_start::{closure#0})
RUSTLIB/src/rust/library/core/src/ops/function.rs:LL:COL (std::ops::function::impls::call_once)
RUSTLIB/src/rust/library/std/src/panicking.rs:LL:COL (std::panicking::r#try::do_call)
RUSTLIB/src/rust/library/std/src/panicking.rs:LL:COL (std::panicking::r#try)
RUSTLIB/src/rust/library/std/src/panic.rs:LL:COL (std::panic::catch_unwind)
RUSTLIB/src/rust/library/std/src/rt.rs:LL:COL (std::rt::lang_start_internal)
RUSTLIB/src/rust/library/std/src/rt.rs:LL:COL (std::rt::lang_start)