[INFO] fetching crate tokio_serial_pacing 0.1.1...
[INFO] testing tokio_serial_pacing-0.1.1 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate tokio_serial_pacing 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tokio_serial_pacing 0.1.1
[INFO] finished tweaking crates.io crate tokio_serial_pacing 0.1.1
[INFO] tweaked toml for crates.io crate tokio_serial_pacing 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio_serial_pacing 0.1.1 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ad1b9353a603ef2d9a24c0fe7b46f89e885b1531d87a7c9752cb929fc529177
[INFO] running `Command { std: "docker" "start" "-a" "4ad1b9353a603ef2d9a24c0fe7b46f89e885b1531d87a7c9752cb929fc529177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ad1b9353a603ef2d9a24c0fe7b46f89e885b1531d87a7c9752cb929fc529177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad1b9353a603ef2d9a24c0fe7b46f89e885b1531d87a7c9752cb929fc529177", kill_on_drop: false }`
[INFO] [stdout] 4ad1b9353a603ef2d9a24c0fe7b46f89e885b1531d87a7c9752cb929fc529177
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70d64b052edc0ad97e15d42edea894ec8a7ebf8ecdd2bb704bc93fc928199002
[INFO] running `Command { std: "docker" "start" "-a" "70d64b052edc0ad97e15d42edea894ec8a7ebf8ecdd2bb704bc93fc928199002", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling unescaper v0.1.8
[INFO] [stderr]    Compiling serialport v4.9.0
[INFO] [stderr]    Compiling mio-serial v5.0.6
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling tokio-serial v5.4.5
[INFO] [stderr]    Compiling tokio_serial_pacing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "70d64b052edc0ad97e15d42edea894ec8a7ebf8ecdd2bb704bc93fc928199002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d64b052edc0ad97e15d42edea894ec8a7ebf8ecdd2bb704bc93fc928199002", kill_on_drop: false }`
[INFO] [stdout] 70d64b052edc0ad97e15d42edea894ec8a7ebf8ecdd2bb704bc93fc928199002
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b027ba6d0deaaacc401926475101b3c59d5ecd25ab32cc7fb474692d3c9a737
[INFO] running `Command { std: "docker" "start" "-a" "3b027ba6d0deaaacc401926475101b3c59d5ecd25ab32cc7fb474692d3c9a737", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling tokio-serial v5.4.5
[INFO] [stderr]    Compiling tokio_serial_pacing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.91s
[INFO] running `Command { std: "docker" "inspect" "3b027ba6d0deaaacc401926475101b3c59d5ecd25ab32cc7fb474692d3c9a737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b027ba6d0deaaacc401926475101b3c59d5ecd25ab32cc7fb474692d3c9a737", kill_on_drop: false }`
[INFO] [stdout] 3b027ba6d0deaaacc401926475101b3c59d5ecd25ab32cc7fb474692d3c9a737
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77705bf5b23c273115fe208f9e586c22fb8b6934800a15831a5afc63f18b3cb5
[INFO] running `Command { std: "docker" "start" "-a" "77705bf5b23c273115fe208f9e586c22fb8b6934800a15831a5afc63f18b3cb5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tokio_serial_pacing-f3c72871baf36aa1)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::check_wait_time ... ok
[INFO] [stdout] test tests::ensure_sync_port_works ... ok
[INFO] [stdout] test tests::check_read_pacing ... ok
[INFO] [stdout] test tests::check_write_pacing ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::check_write_pacing stdout ----
[INFO] [stdout] TX=>RX:  Writing large buf
[INFO] [stdout] RX>=TX Reading large(?) buf
[INFO] [stdout] TX=>RX Flushing
[INFO] [stdout] TX<=RX Reading ack
[INFO] [stdout] RX=>TX, Writing ack data
[INFO] [stdout] Test cycle complete
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::check_write_pacing' (18) panicked at src/lib.rs:122:9:
[INFO] [stdout] It should not take a millisecond normally.
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5aa12692f39a - std[ec4e911328de40a6]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5aa12692f39a - std[ec4e911328de40a6]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec4e911328de40a6]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5aa12692f39a - std[ec4e911328de40a6]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5aa12692f39a - <<std[ec4e911328de40a6]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a96a4c5c53f902a3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5aa12694373a - <core[a96a4c5c53f902a3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5aa12694373a - core[a96a4c5c53f902a3]::fmt::write
[INFO] [stdout]    6:     0x5aa126933d62 - std[ec4e911328de40a6]::io::default_write_fmt::<alloc[c960326de6de28e6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5aa126933d62 - <alloc[c960326de6de28e6]::vec::Vec<u8> as std[ec4e911328de40a6]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5aa12690e10f - <std[ec4e911328de40a6]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5aa12690e10f - std[ec4e911328de40a6]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5aa126927849 - std[ec4e911328de40a6]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5aa1268775fc - <alloc[c960326de6de28e6]::boxed::Box<dyn for<'a, 'b> core[a96a4c5c53f902a3]::ops::function::Fn<(&'a std[ec4e911328de40a6]::panic::PanicHookInfo<'b>,), Output = ()> + core[a96a4c5c53f902a3]::marker::Sync + core[a96a4c5c53f902a3]::marker::Send> as core[a96a4c5c53f902a3]::ops::function::Fn<(&std[ec4e911328de40a6]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x5aa1268775fc - test[30c43f9fd66fea90]::test_main_with_exit_callback::<test[30c43f9fd66fea90]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5aa126927ac2 - <alloc[c960326de6de28e6]::boxed::Box<dyn for<'a, 'b> core[a96a4c5c53f902a3]::ops::function::Fn<(&'a std[ec4e911328de40a6]::panic::PanicHookInfo<'b>,), Output = ()> + core[a96a4c5c53f902a3]::marker::Sync + core[a96a4c5c53f902a3]::marker::Send> as core[a96a4c5c53f902a3]::ops::function::Fn<(&std[ec4e911328de40a6]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x5aa126927ac2 - std[ec4e911328de40a6]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5aa12690e1fa - std[ec4e911328de40a6]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5aa126905b39 - std[ec4e911328de40a6]::sys::backtrace::__rust_end_short_backtrace::<std[ec4e911328de40a6]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5aa12690eedd - __rustc[aa69f48705c57ca8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5aa126943ebc - core[a96a4c5c53f902a3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5aa12685f848 - tokio_serial_pacing[ea1e805d02422324]::tests::check_write_pacing::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:122:9
[INFO] [stdout]   20:     0x5aa1268412c2 - <core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>> as core[a96a4c5c53f902a3]::future::future::Future>::poll
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/future/future.rs:133:9
[INFO] [stdout]   21:     0x5aa12684133d - <core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>> as core[a96a4c5c53f902a3]::future::future::Future>::poll
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/future/future.rs:133:9
[INFO] [stdout]   22:     0x5aa12686b66d - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}::{closure#0}::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:769:70
[INFO] [stdout]   23:     0x5aa12686b56b - tokio[2551cc6a4bef3f7]::task::coop::with_budget::<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}::{closure#0}::{closure#0}>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/task/coop/mod.rs:167:5
[INFO] [stdout]   24:     0x5aa12686b56b - tokio[2551cc6a4bef3f7]::task::coop::budget::<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}::{closure#0}::{closure#0}>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/task/coop/mod.rs:133:5
[INFO] [stdout]   25:     0x5aa12686b56b - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:769:25
[INFO] [stdout]   26:     0x5aa126865f80 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Context>::enter::<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}::{closure#0}>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:446:19
[INFO] [stdout]   27:     0x5aa12686a8ed - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:768:44
[INFO] [stdout]   28:     0x5aa126869b94 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter::<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:856:68
[INFO] [stdout]   29:     0x5aa126839d9b - <tokio[2551cc6a4bef3f7]::runtime::context::scoped::Scoped<tokio[2551cc6a4bef3f7]::runtime::scheduler::Context>>::set::<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}, (alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>)>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/context/scoped.rs:40:9
[INFO] [stdout]   30:     0x5aa12683f1a9 - tokio[2551cc6a4bef3f7]::runtime::context::set_scheduler::<(alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>), <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/context.rs:176:38
[INFO] [stdout]   31:     0x5aa126861a32 - <std[ec4e911328de40a6]::thread::local::LocalKey<tokio[2551cc6a4bef3f7]::runtime::context::Context>>::try_with::<tokio[2551cc6a4bef3f7]::runtime::context::set_scheduler<(alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>), <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}>::{closure#0}, (alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>)>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/thread/local.rs:513:12
[INFO] [stdout]   32:     0x5aa1268616be - <std[ec4e911328de40a6]::thread::local::LocalKey<tokio[2551cc6a4bef3f7]::runtime::context::Context>>::with::<tokio[2551cc6a4bef3f7]::runtime::context::set_scheduler<(alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>), <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}>::{closure#0}, (alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>)>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/thread/local.rs:477:20
[INFO] [stdout]   33:     0x5aa12683e64d - tokio[2551cc6a4bef3f7]::runtime::context::set_scheduler::<(alloc[c960326de6de28e6]::boxed::Box<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::Core>, core[a96a4c5c53f902a3]::option::Option<()>), <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>::{closure#0}>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/context.rs:176:17
[INFO] [stdout]   34:     0x5aa126868f20 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::enter::<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>::{closure#0}, core[a96a4c5c53f902a3]::option::Option<()>>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:856:27
[INFO] [stdout]   35:     0x5aa126869217 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CoreGuard>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:756:24
[INFO] [stdout]   36:     0x5aa1268697a6 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CurrentThread>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:200:33
[INFO] [stdout]   37:     0x5aa12683e9f5 - tokio[2551cc6a4bef3f7]::runtime::context::runtime::enter_runtime::<<tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CurrentThread>::block_on<core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>::{closure#0}, ()>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/context/runtime.rs:65:16
[INFO] [stdout]   38:     0x5aa126865ab1 - <tokio[2551cc6a4bef3f7]::runtime::scheduler::current_thread::CurrentThread>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/scheduler/current_thread/mod.rs:188:9
[INFO] [stdout]   39:     0x5aa1268420ca - <tokio[2551cc6a4bef3f7]::runtime::runtime::Runtime>::block_on_inner::<core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/runtime.rs:371:52
[INFO] [stdout]   40:     0x5aa12684228f - <tokio[2551cc6a4bef3f7]::runtime::runtime::Runtime>::block_on::<core[a96a4c5c53f902a3]::pin::Pin<&mut dyn core[a96a4c5c53f902a3]::future::future::Future<Output = ()>>>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.50.0/src/runtime/runtime.rs:345:18
[INFO] [stdout]   41:     0x5aa12686030c - tokio_serial_pacing[ea1e805d02422324]::tests::check_write_pacing
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:141:10
[INFO] [stdout]   42:     0x5aa12685e567 - tokio_serial_pacing[ea1e805d02422324]::tests::check_write_pacing::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:115:34
[INFO] [stdout]   43:     0x5aa1268615e6 - <tokio_serial_pacing[ea1e805d02422324]::tests::check_write_pacing::{closure#0} as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x5aa12686b6db - <fn() -> core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String> as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x5aa12686b6db - test[30c43f9fd66fea90]::__rust_begin_short_backtrace::<core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String>, fn() -> core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:663:18
[INFO] [stdout]   46:     0x5aa1268780cb - test[30c43f9fd66fea90]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:686:74
[INFO] [stdout]   47:     0x5aa1268780cb - <core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<test[30c43f9fd66fea90]::run_test_in_process::{closure#0}> as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   48:     0x5aa1268780cb - std[ec4e911328de40a6]::panicking::catch_unwind::do_call::<core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<test[30c43f9fd66fea90]::run_test_in_process::{closure#0}>, core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   49:     0x5aa1268780cb - std[ec4e911328de40a6]::panicking::catch_unwind::<core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String>, core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<test[30c43f9fd66fea90]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   50:     0x5aa1268780cb - std[ec4e911328de40a6]::panic::catch_unwind::<core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<test[30c43f9fd66fea90]::run_test_in_process::{closure#0}>, core[a96a4c5c53f902a3]::result::Result<(), alloc[c960326de6de28e6]::string::String>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panic.rs:359:14
[INFO] [stdout]   51:     0x5aa1268780cb - test[30c43f9fd66fea90]::run_test_in_process
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:686:27
[INFO] [stdout]   52:     0x5aa1268780cb - test[30c43f9fd66fea90]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:607:43
[INFO] [stdout]   53:     0x5aa1268737e4 - test[30c43f9fd66fea90]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/test/src/lib.rs:637:41
[INFO] [stdout]   54:     0x5aa1268737e4 - std[ec4e911328de40a6]::sys::backtrace::__rust_begin_short_backtrace::<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   55:     0x5aa12687acd2 - std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked::<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   56:     0x5aa12687acd2 - <core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   57:     0x5aa12687acd2 - std[ec4e911328de40a6]::panicking::catch_unwind::do_call::<core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   58:     0x5aa12687acd2 - std[ec4e911328de40a6]::panicking::catch_unwind::<(), core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   59:     0x5aa12687acd2 - std[ec4e911328de40a6]::panic::catch_unwind::<core[a96a4c5c53f902a3]::panic::unwind_safe::AssertUnwindSafe<std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panic.rs:359:14
[INFO] [stdout]   60:     0x5aa12687acd2 - std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked::<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   61:     0x5aa12687acd2 - <std[ec4e911328de40a6]::thread::lifecycle::spawn_unchecked<test[30c43f9fd66fea90]::run_test::{closure#1}, ()>::{closure#1} as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   62:     0x5aa12692ec9f - <alloc[c960326de6de28e6]::boxed::Box<dyn core[a96a4c5c53f902a3]::ops::function::FnOnce<(), Output = ()> + core[a96a4c5c53f902a3]::marker::Send> as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   63:     0x5aa12692ec9f - <std[ec4e911328de40a6]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   64:     0x788defcbeaa4 - <unknown>
[INFO] [stdout]   65:     0x788defd4ba64 - clone
[INFO] [stdout]   66:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::check_write_pacing
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "77705bf5b23c273115fe208f9e586c22fb8b6934800a15831a5afc63f18b3cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77705bf5b23c273115fe208f9e586c22fb8b6934800a15831a5afc63f18b3cb5", kill_on_drop: false }`
[INFO] [stdout] 77705bf5b23c273115fe208f9e586c22fb8b6934800a15831a5afc63f18b3cb5
