Capture logged messages #30

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1. epage

   added

   enhancementImprove the expectedImprove the expected

   on May 2, 2018
2. spacekookie

   added this to the 2.0.0 milestone on Oct 5, 2018
3. bltavares commented on Oct 10, 2018

   

   bltavares

   on Oct 10, 2018

   Last edited by bltavares

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   Related to the issue, I've recently came across a package which make use of the library.
   When debugging the report, I couldn't read a lot of the stacktrace.

   The lines of the error had an .expect("some information"), but this information was not available as part of the report, nor the line number on the main.rs line. Not having that information to pinpoint where it failed made debugging much more difficult.

   I was only able to discover it was that .expect after I've compiled the package without the setup_panic!() macro and found the expect.

   Test case:

   fn main() {
     setup_panic!();
     let a = None;
     a.expect("This should fail");
   }

   Copy of the error report

   name = 'crossgen'
   operating_system = 'unix:Debian'
   crate_version = '0.5.0'
   explanation = '''
   Panic occurred in file 'libcore/option.rs' at line 960
   '''
   method = 'Panic'
   backtrace = '''
   stack backtrace:
      0:     0x7fb88031531c - backtrace::backtrace::trace::h3f2989054adcbdc4
      1:     0x7fb8803142d2 - <backtrace::capture::Backtrace as core::default::Default>::default::h20d6ca17f037134e
      2:     0x7fb880314348 - backtrace::capture::Backtrace::new::h39605ae6c7e75103
      3:     0x7fb88027e39c - human_panic::report::Report::new::h6787b8a063738a6c
      4:     0x7fb88027dbc2 - human_panic::handle_dump::h46959f457a9a01eb
      5:     0x7fb88004da1a - crossgen::main::{{closure}}::h113bc1f3f37497e3
      6:     0x7fb88032c483 - std::panicking::rust_panic_with_hook::he4c3a67f6258a8f9
                           at libstd/panicking.rs:515
      7:     0x7fb88032c1d9 - std::panicking::continue_panic_fmt::h156c04b2aea348c7
                           at libstd/panicking.rs:426
      8:     0x7fb88032bef5 - rust_begin_unwind
                           at libstd/panicking.rs:337
      9:     0x7fb880388fcb - core::panicking::panic_fmt::h0e6d5c6fb2a34dd6
                           at libcore/panicking.rs:92
     10:     0x7fb88037bf71 - core::option::expect_failed::h388c78b66d038dc6
                           at libcore/option.rs:960
     11:     0x7fb88004d4e1 - crossgen::main::haa2cbc59285b1ce2
     12:     0x7fb880047b06 - std::rt::lang_start::{{closure}}::h0df12d9ba1d016ae
     13:     0x7fb88032be92 - std::rt::lang_start_internal::{{closure}}::h664d976655ba006f
                           at libstd/rt.rs:59
                            - std::panicking::try::do_call::hac56dcc01f36ef70
                           at libstd/panicking.rs:310
     14:     0x7fb880350b49 - __rust_maybe_catch_panic
                           at libpanic_unwind/lib.rs:105
     15:     0x7fb880325e75 - std::panicking::try::hcda2c11533bcd35b
                           at libstd/panicking.rs:289
                            - std::panic::catch_unwind::h28820092503d86ef
                           at libstd/panic.rs:392
                            - std::rt::lang_start_internal::h249c3823b1cd2120
                           at libstd/rt.rs:58
     16:     0x7fb88004da93 - main
     17:     0x7fb87f8802e0 - __libc_start_main
     18:     0x7fb880045129 - _start
     19:                0x0 - <unknown>'''
   
   

   (BTW, really nice idea of error messages. I've loved it)
   (Would this better be a new issue?)
4. spacekookie

   modified the milestone: 2.0.0 on Jun 14, 2019
5. JosiahBull commented on Sep 3, 2022

   

   JosiahBull

   on Sep 3, 2022

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   I have interest in working on this feature if it's not being done elsewhere already.
6. epage commented on Sep 4, 2022

   

   epage

   on Sep 4, 2022

   CollaboratorAuthor

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   Go for it!
7. epage

   added a commit that references this issue on Sep 29, 2025

   chore(deps): Update Rust Stable to v1.90 (rust-cli#30)

   ...

   676066a