panic.txt

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src\libcore\option.rs:335:20
stack backtrace:
   0: std::sys_common::backtrace::_print
             at C:\projects\rust\src\libstd\sys_common\backtrace.rs:92
   1: std::panicking::default_hook::{{closure}}
             at C:\projects\rust\src\libstd\panicking.rs:380
   2: std::panicking::default_hook
             at C:\projects\rust\src\libstd\panicking.rs:397
   3: std::panicking::rust_panic_with_hook
             at C:\projects\rust\src\libstd\panicking.rs:577
   4: std::panicking::begin_panic<alloc::string::String>
             at C:\projects\rust\src\libstd\panicking.rs:538
   5: std::panicking::begin_panic_fmt
             at C:\projects\rust\src\libstd\panicking.rs:522
   6: std::panicking::rust_begin_panic
             at C:\projects\rust\src\libstd\panicking.rs:498
   7: core::panicking::panic_fmt
             at C:\projects\rust\src\libcore\panicking.rs:71
   8: core::panicking::panic
             at C:\projects\rust\src\libcore\panicking.rs:51
   9: core::option::Option<alloc::string::String>::unwrap<alloc::string::String>
             at C:\projects\rust\src\libcore\macros.rs:20
  10: foo::main
             at .\foo.rs:2
  11: panic_unwind::__rust_maybe_catch_panic
             at C:\projects\rust\src\libpanic_unwind\lib.rs:99
  12: std::rt::lang_start
             at C:\projects\rust\src\libstd\rt.rs:52
  13: main
  14: __scrt_common_main_seh
             at f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253
  15: BaseThreadInitThunk