panic in Receiver::recv_timeout()

[rob-solana]

Receiver::recv_timeout() panics with large values of timeout

I tried this code:

let (s, r) = channel();
r.recv_timeout(Duration::new(std::u64::MAX,0)); // never time out

I expected a blocking receive.

Instead, this happened:

thread 'main' panicked at 'overflow when adding duration to time', libcore/option.rs:989:5

https://play.rust-lang.org/?gist=4880602aa21f718bd8fa7e4826380218&version=stable&mode=debug&edition=2015

Meta

rustc --version --verbose

rustc 1.29.0 (aa3ca1994 2018-09-11)
binary: rustc
commit-hash: aa3ca1994904f2e056679fce1f185db8c7ed2703
commit-date: 2018-09-11
host: x86_64-unknown-linux-gnu
release: 1.29.0
LLVM version: 7.0

Backtrace:

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:211
   3: std::panicking::default_hook
             at libstd/panicking.rs:227
   4: std::panicking::rust_panic_with_hook
             at libstd/panicking.rs:475
   5: std::panicking::continue_panic_fmt
             at libstd/panicking.rs:390
   6: rust_begin_unwind
             at libstd/panicking.rs:325
   7: core::panicking::panic_fmt
             at libcore/panicking.rs:77
   8: core::option::expect_failed
             at libcore/option.rs:989
   9: <std::time::Instant as core::ops::arith::Add<core::time::Duration>>::add
             at /checkout/src/libcore/option.rs:312
             at libstd/sys/unix/time.rs:46
             at libstd/sys/unix/time.rs:297
             at libstd/time.rs:218
  10: <std::sync::mpsc::Receiver<T>>::recv_timeout
             at /checkout/src/libstd/sync/mpsc/mod.rs:1300
  11: playground::main
             at src/main.rs:5
  12: std::rt::lang_start::{{closure}}
             at /checkout/src/libstd/rt.rs:74
  13: std::panicking::try::do_call
             at libstd/rt.rs:59
             at libstd/panicking.rs:310
  14: __rust_maybe_catch_panic
             at libpanic_unwind/lib.rs:105
  15: std::rt::lang_start_internal
             at libstd/panicking.rs:289
             at libstd/panic.rs:392
             at libstd/rt.rs:58
  16: std::rt::lang_start
             at /checkout/src/libstd/rt.rs:74
  17: main
  18: __libc_start_main
  19: _start