Formatting bug

[Roba1993]

I have a wired bug. It happens always lot on GitHub CI/CD builds. On my machine I can only reproduce it, when I run two tests in parallel. I don't know if this is related to request or rune. May someone can help here.

This the the backtrace:

thread 'main' panicked at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/io/mod.rs:1844:21:
a formatting trait implementation returned an error when the underlying stream did not
stack backtrace:
   0:        0x107f644a4 - std::backtrace_rs::backtrace::libunwind::trace::ha6e1b57d52f71487
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:        0x107f644a4 - std::backtrace_rs::backtrace::trace_unsynchronized::h9ddaec9267910606
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:        0x107f644a4 - std::sys_common::backtrace::_print_fmt::hd5e045ae4df2418e
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:68:5
   3:        0x107f644a4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41035ce174e31160
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:44:22
   4:        0x107f8425c - core::fmt::rt::Argument::fmt::hd945519cb60b34bb
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/core/src/fmt/rt.rs:165:63
   5:        0x107f8425c - core::fmt::write::h7e946826fce7616b
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/core/src/fmt/mod.rs:1168:21
   6:        0x107f60958 - std::io::Write::write_fmt::he3645adfefb23e4a
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/io/mod.rs:1835:15
   7:        0x107f642fc - std::sys_common::backtrace::_print::hb62ba094b434c569
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:47:5
   8:        0x107f642fc - std::sys_common::backtrace::print::h2efe9ae66fda73dc
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:34:9
   9:        0x107f654d4 - std::panicking::default_hook::{{closure}}::hd27200b4fbd3bf40
  10:        0x107f651a0 - std::panicking::default_hook::hb8656334461229c8
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:298:9
  11:        0x107f65d80 - std::panicking::rust_panic_with_hook::h10171cf76e1aed15
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:795:13
  12:        0x107f65790 - std::panicking::begin_panic_handler::{{closure}}::h9344de43a47cae21
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:656:13
  13:        0x107f64928 - std::sys_common::backtrace::__rust_end_short_backtrace::h55013ada3ab9c4e8
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:171:18
  14:        0x107f6552c - rust_begin_unwind
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:652:5
  15:        0x108059f7c - core::panicking::panic_fmt::h0b16bb09366e1f01
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/core/src/panicking.rs:72:14
  16:        0x106533574 - std::io::Write::write_fmt::h63eda0131809f46c
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/io/mod.rs:1844:21
  17:        0x1063a93ac - rune::cli::tests::TestCase::emit::h869c4c4f6637e808
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli/tests.rs:363:17
  18:        0x1063a75b8 - rune::cli::tests::run::{{closure}}::h693295b23618be24
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli/tests.rs:243:9
  19:        0x1063aff80 - rune::cli::run_path::{{closure}}::h07b99ca07aa43b3a
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli.rs:845:86
  20:        0x1063aeb1c - rune::cli::main_with_out::{{closure}}::h1adb74fc6a01f6b2
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli.rs:798:48
  21:        0x1063aa520 - rune::cli::Entry::inner::{{closure}}::h22d5ab902326a051
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli.rs:226:55
  22:        0x102de7be4 - rune::cli::Entry::run_async::{{closure}}::hf4d3ba65b0335be6
                               at /Users/roba/.cargo/git/checkouts/rune-e1b81929e3b93ab9/839ce5f/crates/rune/src/cli.rs:148:28
  23:        0x102de6370 - rune::main::{{closure}}::hf706f573eccdb7e0
                               at /Users/roba/Code/Exolynk/rune/src/main.rs:47:10
  24:        0x102de87e4 - tokio::runtime::park::CachedParkThread::block_on::{{closure}}::h61d134ce01a525f4
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/park.rs:281:63
  25:        0x102de8670 - tokio::runtime::coop::with_budget::h4d794b4484551300
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/coop.rs:107:5
  26:        0x102de8670 - tokio::runtime::coop::budget::h5e29724860ef53cd
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/coop.rs:73:5
  27:        0x102de8670 - tokio::runtime::park::CachedParkThread::block_on::h1572852cb63e1c2e
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/park.rs:281:31
  28:        0x102ddda4c - tokio::runtime::context::blocking::BlockingRegionGuard::block_on::hc5f1fba73a3625ee
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/context/blocking.rs:66:9
  29:        0x102de0a1c - tokio::runtime::scheduler::multi_thread::MultiThread::block_on::{{closure}}::hc011e40a20fb033d
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/scheduler/multi_thread/mod.rs:87:13
  30:        0x102ddd3e0 - tokio::runtime::context::runtime::enter_runtime::h482e9af53122fb71
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/context/runtime.rs:65:16
  31:        0x102de09a8 - tokio::runtime::scheduler::multi_thread::MultiThread::block_on::h268de62232c57915
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/scheduler/multi_thread/mod.rs:86:9
  32:        0x102de0744 - tokio::runtime::runtime::Runtime::block_on::h96847898edac5997
                               at /Users/roba/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.38.0/src/runtime/runtime.rs:349:45
  33:        0x102dddd90 - rune::main::h48a4ec74fc94c2d1
                               at /Users/roba/Code/Exolynk/rune/src/main.rs:48:5
  34:        0x102df1388 - core::ops::function::FnOnce::call_once::h4e71399d2c4bba24
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/core/src/ops/function.rs:250:5
  35:        0x102ddccb0 - std::sys_common::backtrace::__rust_begin_short_backtrace::hf9eb7e8c59e14a41
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/sys_common/backtrace.rs:155:18
  36:        0x102de391c - std::rt::lang_start::{{closure}}::h0a2cf9104feba449
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/rt.rs:159:18
  37:        0x107f59c98 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h081836dd0d716055
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/core/src/ops/function.rs:284:13
  38:        0x107f59c98 - std::panicking::try::do_call::h9d30dba5b3de8818
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:559:40
  39:        0x107f59c98 - std::panicking::try::h4de9fe721f1abb3d
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:523:19
  40:        0x107f59c98 - std::panic::catch_unwind::h597e8d4c5d489d43
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panic.rs:149:14
  41:        0x107f59c98 - std::rt::lang_start_internal::{{closure}}::h4cafcc96baeac274
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/rt.rs:141:48
  42:        0x107f59c98 - std::panicking::try::do_call::hd8cf3d55a1ab816e
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:559:40
  43:        0x107f59c98 - std::panicking::try::h1f2500bfe6fa656a
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panicking.rs:523:19
  44:        0x107f59c98 - std::panic::catch_unwind::h9cdfd4674b4e1cfa
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/panic.rs:149:14
  45:        0x107f59c98 - std::rt::lang_start_internal::h27a134f18d582a1e
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/rt.rs:141:20
  46:        0x102de38e8 - std::rt::lang_start::h257dd7a9a74acb76
                               at /rustc/3f5fd8dd41153bc5fdca9427e9e05be2c767ba23/library/std/src/rt.rs:158:17
  47:        0x102ddde38 - _main
Test ::exo::ai::Llm::send: err: 

[udoprog]

I can't find anything on the references lines.

Which version of Rune are you using?

[Roba1993]

I'm still on a custom 13.1

[Roba1993]

This PR is the fix to this solution #749