[INFO] fetching crate tokio-dtrace 0.1.1...
[INFO] testing tokio-dtrace-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tokio-dtrace 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tokio-dtrace 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-dtrace 0.1.1
[INFO] tweaked toml for crates.io crate tokio-dtrace 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-dtrace 0.1.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-dtrace 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c798644e07c96514322d1a295276c43f9ce10c0e975888ae9898e8b5d963fe25
[INFO] running `Command { std: "docker" "start" "-a" "c798644e07c96514322d1a295276c43f9ce10c0e975888ae9898e8b5d963fe25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c798644e07c96514322d1a295276c43f9ce10c0e975888ae9898e8b5d963fe25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c798644e07c96514322d1a295276c43f9ce10c0e975888ae9898e8b5d963fe25", kill_on_drop: false }`
[INFO] [stdout] c798644e07c96514322d1a295276c43f9ce10c0e975888ae9898e8b5d963fe25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c99834f6c07a78a9eae8214502d0cf75e8009bb0404392d9f0b5de8455acb4c
[INFO] running `Command { std: "docker" "start" "-a" "1c99834f6c07a78a9eae8214502d0cf75e8009bb0404392d9f0b5de8455acb4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling libc v0.2.173
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling pretty-hex v0.4.1
[INFO] [stderr]    Compiling usdt-impl v0.5.0
[INFO] [stderr]    Compiling tokio v1.46.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]    Compiling thread-id v4.2.2
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling scroll_derive v0.12.1
[INFO] [stderr]    Compiling scroll v0.12.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling goblin v0.8.2
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling pest v2.8.1
[INFO] [stderr]    Compiling pest_meta v2.8.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling pest_generator v2.8.1
[INFO] [stderr]    Compiling pest_derive v2.8.1
[INFO] [stderr]    Compiling dtrace-parser v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serde_tokenstream v0.2.2
[INFO] [stderr]    Compiling dof v0.3.0
[INFO] [stderr]    Compiling usdt-attr-macro v0.5.0
[INFO] [stderr]    Compiling usdt-macro v0.5.0
[INFO] [stderr]    Compiling usdt v0.5.0
[INFO] [stderr]    Compiling tokio-dtrace v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `builder`
[INFO] [stdout]    --> src/lib.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     builder: &mut tokio::runtime::Builder,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.39s
[INFO] running `Command { std: "docker" "inspect" "1c99834f6c07a78a9eae8214502d0cf75e8009bb0404392d9f0b5de8455acb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c99834f6c07a78a9eae8214502d0cf75e8009bb0404392d9f0b5de8455acb4c", kill_on_drop: false }`
[INFO] [stdout] 1c99834f6c07a78a9eae8214502d0cf75e8009bb0404392d9f0b5de8455acb4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f576eac0394fbbc47a68d7c9d8ae3990136b80565f6513379c25b93fc59c690
[INFO] running `Command { std: "docker" "start" "-a" "6f576eac0394fbbc47a68d7c9d8ae3990136b80565f6513379c25b93fc59c690", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.46.1
[INFO] [stderr]    Compiling tokio-dtrace v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `builder`
[INFO] [stdout]    --> src/lib.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     builder: &mut tokio::runtime::Builder,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `builder`
[INFO] [stdout]    --> src/lib.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     builder: &mut tokio::runtime::Builder,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "6f576eac0394fbbc47a68d7c9d8ae3990136b80565f6513379c25b93fc59c690", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f576eac0394fbbc47a68d7c9d8ae3990136b80565f6513379c25b93fc59c690", kill_on_drop: false }`
[INFO] [stdout] 6f576eac0394fbbc47a68d7c9d8ae3990136b80565f6513379c25b93fc59c690
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a6ef161a85ba68f16de94e154081d18c37949da3e239455753d78a4b7485f4a
[INFO] running `Command { std: "docker" "start" "-a" "0a6ef161a85ba68f16de94e154081d18c37949da3e239455753d78a4b7485f4a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `builder`
[INFO] [stderr]    --> src/lib.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     builder: &mut tokio::runtime::Builder,
[INFO] [stderr]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-dtrace` (lib) generated 1 warning (run `cargo fix --lib -p tokio-dtrace` to apply 1 suggestion)
[INFO] [stderr] warning: `tokio-dtrace` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_dtrace-2f7ad475dc1cb553)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::casts_are_valid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio_dtrace
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - register_hooks (line 143) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 279) ... ok
[INFO] [stdout] test src/lib.rs - register_hooks (line 170) ... ok
[INFO] [stdout] test src/lib.rs - (line 289) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 252) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - register_hooks (line 143) stdout ----
[INFO] [stdout] Test executable failed (exit status: 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: UnstableFeaturesRequired
[INFO] [stdout] Error: "the test returned a termination value with a non-zero status code (1) which indicates a failure"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 289) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (67) panicked at /tmp/rustdoctestRKWIGv/doctest_bundle_2024.rs:41:49:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: UnstableFeaturesRequired
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60f65226b8da - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60f65226b8da - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60f65226b8da - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x60f65226b8da - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x60f65227fbea - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x60f65227fbea - core[6771d259883166e6]::fmt::write
[INFO] [stdout]    6:     0x60f652270e62 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x60f652270e62 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x60f65224a2af - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x60f65224a2af - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x60f652263af1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x60f652263d6b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x60f65224a368 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x60f65223f4c9 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x60f65224b19d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x60f6522803ac - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x60f652280122 - core[6771d259883166e6]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x60f6521509a7 - doctest_bundle_2024::__doctest_2::main::hacb20c2685aa398a
[INFO] [stdout]   18:     0x60f652151026 - doctest_bundle_2024::__doctest_2::__main_fn::h5ea69184a2a93573
[INFO] [stdout]   19:     0x60f65214c371 - doctest_runner_2024[78924df70b732f50]::__doctest_2::TEST::{closure#0}
[INFO] [stdout]   20:     0x60f65214fcf6 - <doctest_runner_2024[78924df70b732f50]::__doctest_2::TEST::{closure#0} as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   21:     0x60f65214ca81 - doctest_runner_2024[78924df70b732f50]::main
[INFO] [stdout]   22:     0x60f65214fbd3 - <fn() -> std[128c3efe2914e152]::process::ExitCode as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   23:     0x60f65214bb86 - std[128c3efe2914e152]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> std[128c3efe2914e152]::process::ExitCode, std[128c3efe2914e152]::process::ExitCode>
[INFO] [stdout]   24:     0x60f65214c099 - std[128c3efe2914e152]::rt::lang_start::<std[128c3efe2914e152]::process::ExitCode>::{closure#0}
[INFO] [stdout]   25:     0x60f652262764 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   26:     0x60f652262764 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x60f652262764 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x60f652262764 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x60f652262764 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stdout]   30:     0x60f652262764 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x60f652262764 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x60f652262764 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x60f652262764 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stdout]   34:     0x60f65214aed1 - std[128c3efe2914e152]::rt::lang_start::<std[128c3efe2914e152]::process::ExitCode>
[INFO] [stdout]   35:     0x60f65214fe75 - main
[INFO] [stdout]   36:     0x7eeb150e81ca - <unknown>
[INFO] [stdout]   37:     0x7eeb150e828b - __libc_start_main
[INFO] [stdout]   38:     0x60f652149f05 - _start
[INFO] [stdout]   39:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 252) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (66) panicked at /tmp/rustdoctestRKWIGv/doctest_bundle_2024.rs:13:6:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: UnstableFeaturesRequired
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c0b1bb5a8da - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5c0b1bb5a8da - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5c0b1bb5a8da - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5c0b1bb5a8da - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5c0b1bb6ebea - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5c0b1bb6ebea - core[6771d259883166e6]::fmt::write
[INFO] [stdout]    6:     0x5c0b1bb5fe62 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5c0b1bb5fe62 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5c0b1bb392af - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5c0b1bb392af - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5c0b1bb52af1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5c0b1bb52d6b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5c0b1bb39368 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5c0b1bb2e4c9 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5c0b1bb3a19d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5c0b1bb6f3ac - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5c0b1bb6f122 - core[6771d259883166e6]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5c0b1ba3f2f7 - doctest_bundle_2024::__doctest_0::main::h96fa76f1439f9676
[INFO] [stdout]   18:     0x5c0b1ba3f4d6 - doctest_bundle_2024::__doctest_0::__main_fn::h86e5d287dccef615
[INFO] [stdout]   19:     0x5c0b1ba3b270 - doctest_runner_2024[78924df70b732f50]::__doctest_0::TEST::{closure#0}
[INFO] [stdout]   20:     0x5c0b1ba3ec76 - <doctest_runner_2024[78924df70b732f50]::__doctest_0::TEST::{closure#0} as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   21:     0x5c0b1ba3ba81 - doctest_runner_2024[78924df70b732f50]::main
[INFO] [stdout]   22:     0x5c0b1ba3ebd3 - <fn() -> std[128c3efe2914e152]::process::ExitCode as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   23:     0x5c0b1ba3ab86 - std[128c3efe2914e152]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> std[128c3efe2914e152]::process::ExitCode, std[128c3efe2914e152]::process::ExitCode>
[INFO] [stdout]   24:     0x5c0b1ba3b099 - std[128c3efe2914e152]::rt::lang_start::<std[128c3efe2914e152]::process::ExitCode>::{closure#0}
[INFO] [stdout]   25:     0x5c0b1bb51764 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   26:     0x5c0b1bb51764 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x5c0b1bb51764 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x5c0b1bb51764 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x5c0b1bb51764 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stdout]   30:     0x5c0b1bb51764 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x5c0b1bb51764 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x5c0b1bb51764 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x5c0b1bb51764 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stdout]   34:     0x5c0b1ba39ed1 - std[128c3efe2914e152]::rt::lang_start::<std[128c3efe2914e152]::process::ExitCode>
[INFO] [stdout]   35:     0x5c0b1ba3ee75 - main
[INFO] [stdout]   36:     0x76d3568961ca - <unknown>
[INFO] [stdout]   37:     0x76d35689628b - __libc_start_main
[INFO] [stdout]   38:     0x5c0b1ba38f05 - _start
[INFO] [stdout]   39:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 252)
[INFO] [stdout]     src/lib.rs - (line 289)
[INFO] [stdout]     src/lib.rs - register_hooks (line 143)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 175) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 175) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `*`
[INFO] [stdout]    --> src/lib.rs:176:6
[INFO] [stdout]     |
[INFO] [stdout] 176 | tokio*:::task-poll-start,
[INFO] [stdout]     |      ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 175)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.44s; merged doctests compilation took 1.29s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "0a6ef161a85ba68f16de94e154081d18c37949da3e239455753d78a4b7485f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a6ef161a85ba68f16de94e154081d18c37949da3e239455753d78a4b7485f4a", kill_on_drop: false }`
[INFO] [stdout] 0a6ef161a85ba68f16de94e154081d18c37949da3e239455753d78a4b7485f4a
