$ RUST_BACKTRACE=1 rustSnapper -d
thread '<unnamed>' panicked at 'Could not download grid: http://grids.edgecastcdn.net:9000/director-report: Http(Ssl(Ssl(ErrorStack([Error { code: 336134278, library: "SSL routines", function: "ssl3_get_server_certificate", reason: "certificate verify failed" }]))))', /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/result.rs:837
stack backtrace:
   1:     0x56144ca4046a - std::sys::imp::backtrace::tracing::imp::write::h3188f035833a2635
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:42
   2:     0x56144ca4358f - std::panicking::default_hook::{{closure}}::h6385b6959a2dd25b
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:349
   3:     0x56144ca4318e - std::panicking::default_hook::he4f3b61755d7fa95
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:365
   4:     0x56144ca43a37 - std::panicking::rust_panic_with_hook::hf00b8130f73095ec
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:553
   5:     0x56144ca43874 - std::panicking::begin_panic::h6227f62cb2cdaeb4
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:515
   6:     0x56144ca437e9 - std::panicking::begin_panic_fmt::h173eadd80ae64bec
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:499
   7:     0x56144ca43777 - rust_begin_unwind
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:475
   8:     0x56144ca7013d - core::panicking::panic_fmt::h3b2d1e30090844ff
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/panicking.rs:69
   9:     0x56144c9429f7 - core::result::unwrap_failed::hea70e8cbc4eb9fcb
  10:     0x56144c96a07f - rustSnapper::grids::get_grid::{{closure}}::hb2e1bbd8ef98d802
  11:     0x56144c9409dc - std::panicking::try::do_call::hf4a6b51f10677fd8
  12:     0x56144ca4a95a - __rust_maybe_catch_panic
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libpanic_unwind/lib.rs:98
  13:     0x56144c9459b9 - <F as alloc::boxed::FnBox<A>>::call_box::hfa832b7161e56e5e
  14:     0x56144ca428c4 - std::sys::imp::thread::Thread::new::thread_start::he018521f53b24939
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/liballoc/boxed.rs:615
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/sys_common/thread.rs:21
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/sys/unix/thread.rs:84
  15:     0x7ff29285d453 - start_thread
  16:     0x7ff2923897de - __GI___clone
  17:                0x0 - <unknown>