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panic in Specie::generate_offspring() #19

@Boscop

Description

@Boscop

After running it on my problem for like an hour (with no improvement), I got this panic:

thread 'main' panicked at 'Range::new called with `low >= high`', C:\Users\me\.c
argo\registry\src\github.com-1ecc6299db9ec823\rand-0.3.18\src\distributions\rang
e.rs:60:8
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: <rand::ThreadRng as rand::Rng>::next_u64
   5: rustneat::specie::Specie::generate_offspring
   6: rustneat::population::Population::evolve
   7: ZIG_NORM_X
   8: ZIG_NORM_X
   9: panic_unwind::__rust_maybe_catch_panic
             at C:\projects\rust\src\libpanic_unwind\lib.rs:99
  10: std::rt::lang_start
             at C:\projects\rust\src\libstd\rt.rs:52
  11: __scrt_common_main_seh
             at f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253
  12: BaseThreadInitThunk

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