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ModelFox makes it easy to train, deploy, and monitor machine learning models.
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Thread 'main' panicked at 'called `Option::unwrap()` on a `None` value' #121

Closed joelchen closed 1 year ago

joelchen commented 2 years ago

Happened in one of my applications:

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /Users/joelchen/.cargo/git/checkouts/tangram-cb663c32440b0d24/443190a/crates/core/predict.rs:977:71
stack backtrace:
   0:        0x1052c780c - std::backtrace_rs::backtrace::libunwind::trace::h449592924b3bd63f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:        0x1052c780c - std::backtrace_rs::backtrace::trace_unsynchronized::ha2aaeafed0c31c90
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:        0x1052c780c - std::sys_common::backtrace::_print_fmt::h58db85a17304976f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5
   3:        0x1052c780c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h10cf06316d33e2a9
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22
   4:        0x1052e5454 - core::fmt::write::h1faf18c959c3a8df
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17
   5:        0x1052c1454 - std::io::Write::write_fmt::h86ab231360bc97d2
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15
   6:        0x1052c9f58 - std::sys_common::backtrace::_print::h771b4aab9b128422
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5
   7:        0x1052c9f58 - std::sys_common::backtrace::print::h637de99a9f76e8a7
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9
   8:        0x1052c9f58 - std::panicking::default_hook::{{closure}}::h36e628ffaf3cd44f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22
   9:        0x1052c9bd0 - std::panicking::default_hook::h3ee1564a7544e58f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9
  10:        0x1052ca5ec - std::panicking::rust_panic_with_hook::h191339fbd2fe2360
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:702:17
  11:        0x1052ca308 - std::panicking::begin_panic_handler::{{closure}}::h91c230befd9929e3
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:586:13
  12:        0x1052c7cf4 - std::sys_common::backtrace::__rust_end_short_backtrace::haaaeebb1d37476b3
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18
  13:        0x1052ca07c - rust_begin_unwind
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5
  14:        0x1053064b0 - core::panicking::panic_fmt::h4fe1013b011ef602
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14
  15:        0x1053063cc - core::panicking::panic::he60bb304466ccbaf
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:48:5
  16:        0x104ff6fa0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::h5d7b5ec3ed46c84a
  17:        0x104f6cb84 - <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter::hba64e4f67e876890
  18:        0x104ff0c3c - modelfox_core::predict::predict::h85cadbfd39ca5d40
  19:        0x104e11900 - modelfox::Model<Input,Output>::predict_one::hc081ee438df594f9
  20:        0x104ef9558 - application::Application::predict::{{closure}}::hc8ddec271ead1da4
  21:        0x104f1ca60 - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::hfdacf722533753d0
  22:        0x104f1a3bc - <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::h670e4eceed9f117c
  23:        0x104f33f40 - tokio::park::thread::CachedParkThread::block_on::h980578f8d05e977f
  24:        0x104f38228 - tokio::runtime::thread_pool::ThreadPool::block_on::h32a7c6b75fb06898
  25:        0x104e107bc - application::main::hc98c4c7340fe37ac
  26:        0x104ec9058 - std::sys_common::backtrace::__rust_begin_short_backtrace::h372f6a20aa0b8a8f
  27:        0x104f4b264 - std::rt::lang_start::{{closure}}::hf6364dd20d0f1090
  28:        0x1052c70b8 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h8eb3ac20f80eabfa
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:259:13
  29:        0x1052c70b8 - std::panicking::try::do_call::ha6ddf2c638427188
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
  30:        0x1052c70b8 - std::panicking::try::hda8741de507c1ad0
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
  31:        0x1052c70b8 - std::panic::catch_unwind::h82424a01f258bd39
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
  32:        0x1052c70b8 - std::rt::lang_start_internal::{{closure}}::h67e296ed5b030b7b
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:48
  33:        0x1052c70b8 - std::panicking::try::do_call::hd3dd7e7e10f6424e
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
  34:        0x1052c70b8 - std::panicking::try::ha0a7bd8122e3fb7c
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
  35:        0x1052c70b8 - std::panic::catch_unwind::h809b0e1092e9475d
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
  36:        0x1052c70b8 - std::rt::lang_start_internal::h358b6d58e23c88c7
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:20
  37:        0x104e10aec - _main
joelchen commented 2 years ago

Removing async does not resolve this issue:

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /Users/joelchen/.cargo/git/checkouts/tangram-cb663c32440b0d24/443190a/crates/core/predict.rs:977:71
stack backtrace:
   0:        0x1005537b4 - std::backtrace_rs::backtrace::libunwind::trace::h449592924b3bd63f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:        0x1005537b4 - std::backtrace_rs::backtrace::trace_unsynchronized::ha2aaeafed0c31c90
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:        0x1005537b4 - std::sys_common::backtrace::_print_fmt::h58db85a17304976f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5
   3:        0x1005537b4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h10cf06316d33e2a9
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22
   4:        0x100570400 - core::fmt::write::h1faf18c959c3a8df
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17
   5:        0x10054dbd0 - std::io::Write::write_fmt::h86ab231360bc97d2
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15
   6:        0x100555bd4 - std::sys_common::backtrace::_print::h771b4aab9b128422
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5
   7:        0x100555bd4 - std::sys_common::backtrace::print::h637de99a9f76e8a7
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9
   8:        0x100555bd4 - std::panicking::default_hook::{{closure}}::h36e628ffaf3cd44f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22
   9:        0x10055584c - std::panicking::default_hook::h3ee1564a7544e58f
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9
  10:        0x100556234 - std::panicking::rust_panic_with_hook::h191339fbd2fe2360
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:698:17
  11:        0x100555f84 - std::panicking::begin_panic_handler::{{closure}}::h91c230befd9929e3
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:586:13
  12:        0x100553c9c - std::sys_common::backtrace::__rust_end_short_backtrace::haaaeebb1d37476b3
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18
  13:        0x100555cf8 - rust_begin_unwind
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5
  14:        0x1005861a8 - core::panicking::panic_fmt::h4fe1013b011ef602
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14
  15:        0x1005860c4 - core::panicking::panic::he60bb304466ccbaf
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:48:5
  16:        0x10031b9a8 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::h5d7b5ec3ed46c84a
  17:        0x10030295c - <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter::hba64e4f67e876890
  18:        0x100317fe4 - modelfox_core::predict::predict::h85cadbfd39ca5d40
  19:        0x10021f4c8 - modelfox::Model<Input,Output>::predict_one::h6c9862339072c977
  20:        0x100208670 - application::Application::predict::h048350696a1eea7d
  21:        0x10020b3ec - application::main::h074bf85d067cff82
  22:        0x1002f10ec - std::sys_common::backtrace::__rust_begin_short_backtrace::hb061c91a98b4a8fb
  23:        0x1002ea07c - std::rt::lang_start::{{closure}}::hc777d8a057c4991c
  24:        0x100553060 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h8eb3ac20f80eabfa
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:259:13
  25:        0x100553060 - std::panicking::try::do_call::ha6ddf2c638427188
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
  26:        0x100553060 - std::panicking::try::hda8741de507c1ad0
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
  27:        0x100553060 - std::panic::catch_unwind::h82424a01f258bd39
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
  28:        0x100553060 - std::rt::lang_start_internal::{{closure}}::h67e296ed5b030b7b
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:48
  29:        0x100553060 - std::panicking::try::do_call::hd3dd7e7e10f6424e
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
  30:        0x100553060 - std::panicking::try::ha0a7bd8122e3fb7c
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
  31:        0x100553060 - std::panic::catch_unwind::h809b0e1092e9475d
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
  32:        0x100553060 - std::rt::lang_start_internal::h358b6d58e23c88c7
                               at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:20
  33:        0x10021e6b4 - _main
joelchen commented 1 year ago

It happened again using the latest main branch:

thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /Users/joelchen/.cargo/git/checkouts/modelfox-e35e97cb1dd1c244/8e7bd80/crates/core/predict.rs:977:54
joelchen commented 1 year ago

Feature value is INFINITY.

nitsky commented 1 year ago

@joelchen Do you have any information on how you were able to produce an infinite feature value? In general, this should not possible.

joelchen commented 1 year ago

@nitsky My calculations for some of the feature values of type f64 somehow yielded INFINITY, so I assigned zero to the feature value if it is INFINITY. ModelFox may put a guard for NAN and INFINITY instead.