[INFO] fetching crate gui 0.6.0...
[INFO] testing gui-0.6.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate gui 0.6.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate gui 0.6.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gui 0.6.0
[INFO] finished tweaking crates.io crate gui 0.6.0
[INFO] tweaked toml for crates.io crate gui 0.6.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gui-derive v0.6.0
[INFO] [stderr]   Downloaded tokio-macros v0.3.2
[INFO] [stderr]   Downloaded tokio v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07f2e74acf1d3205b27b49401631292cdc025ee89150b3bb4ae44c5cbf76340d
[INFO] running `Command { std: "docker" "start" "-a" "07f2e74acf1d3205b27b49401631292cdc025ee89150b3bb4ae44c5cbf76340d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07f2e74acf1d3205b27b49401631292cdc025ee89150b3bb4ae44c5cbf76340d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f2e74acf1d3205b27b49401631292cdc025ee89150b3bb4ae44c5cbf76340d", kill_on_drop: false }`
[INFO] [stdout] 07f2e74acf1d3205b27b49401631292cdc025ee89150b3bb4ae44c5cbf76340d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab590859a0a2e3a933c0a0b298c266da792c5ae6a4334fedadeb52433f82c6c3
[INFO] running `Command { std: "docker" "start" "-a" "ab590859a0a2e3a933c0a0b298c266da792c5ae6a4334fedadeb52433f82c6c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gui-derive v0.6.0
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
[INFO] running `Command { std: "docker" "inspect" "ab590859a0a2e3a933c0a0b298c266da792c5ae6a4334fedadeb52433f82c6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab590859a0a2e3a933c0a0b298c266da792c5ae6a4334fedadeb52433f82c6c3", kill_on_drop: false }`
[INFO] [stdout] ab590859a0a2e3a933c0a0b298c266da792c5ae6a4334fedadeb52433f82c6c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe73ef215bcf5b14b8463d8a6e6b0390a0941034228f2e7979aeab7f65780e33
[INFO] running `Command { std: "docker" "start" "-a" "fe73ef215bcf5b14b8463d8a6e6b0390a0941034228f2e7979aeab7f65780e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `object` is never read
[INFO] [stdout]    --> tests/test_ui.rs:618:3
[INFO] [stdout]     |
[INFO] [stdout] 616 | struct MovingWidget {
[INFO] [stdout]     |        ------------ field in this struct
[INFO] [stdout] 617 |   id: Id,
[INFO] [stdout] 618 |   object: Moveable,
[INFO] [stdout]     |   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MovingWidget` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/test_ui.rs:107:42
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stdout]     |                                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "fe73ef215bcf5b14b8463d8a6e6b0390a0941034228f2e7979aeab7f65780e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe73ef215bcf5b14b8463d8a6e6b0390a0941034228f2e7979aeab7f65780e33", kill_on_drop: false }`
[INFO] [stdout] fe73ef215bcf5b14b8463d8a6e6b0390a0941034228f2e7979aeab7f65780e33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 930517ac92b30457b03e9145320fc2f5311c7c3ec7e4c773f43a790976f50f5a
[INFO] running `Command { std: "docker" "start" "-a" "930517ac92b30457b03e9145320fc2f5311c7c3ec7e4c773f43a790976f50f5a", kill_on_drop: false }`
[INFO] [stderr] warning: field `children` is never read
[INFO] [stderr]   --> src/placeholder.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub(crate) struct Placeholder {
[INFO] [stderr]    |                   ----------- field in this struct
[INFO] [stderr] 40 |   children: Vec<Id>,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `gui` (lib) generated 1 warning
[INFO] [stderr] warning: field `object` is never read
[INFO] [stderr]    --> tests/test_ui.rs:618:3
[INFO] [stderr]     |
[INFO] [stderr] 616 | struct MovingWidget {
[INFO] [stderr]     |        ------------ field in this struct
[INFO] [stderr] 617 |   id: Id,
[INFO] [stderr] 618 |   object: Moveable,
[INFO] [stderr]     |   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `MovingWidget` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/test_ui.rs:107:42
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stderr]     |                                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stderr]     |                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `gui` (test "test_ui") generated 2 warnings (run `cargo fix --test "test_ui"` to apply 1 suggestion)
[INFO] [stderr] warning: `gui` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gui-d774c266f95ee08e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_events.rs (/opt/rustwide/target/debug/deps/test_events-c0fe157092f098d0)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test hook_can_send_message ... ok
[INFO] [stdout] test event_handling_with_focus ... ok
[INFO] [stdout] test events_bubble_up_when_unhandled ... ok
[INFO] [stdout] test event_propagation ... ok
[INFO] [stdout] test hook_emitted_events ... ok
[INFO] [stdout] test hook_events_handler ... ok
[INFO] [stdout] test hook_events_return_value ... ok
[INFO] [stdout] test targeted_event_returned_on_no_focus ... ok
[INFO] [stdout] test hook_event_merging - should panic ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- hook_event_merging stdout ----
[INFO] [stdout] thread 'hook_event_merging' panicked at tests/common/mod.rs:70:11:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 'a'
[INFO] [stdout]  right: 'z'
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b804757c3c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55b804757c3c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55b804757c3c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55b804757c3c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55b804781960 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55b804781960 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55b8047555af - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x55b804757a24 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55b804757a24 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55b8047596e7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x55b8047593d3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55b804704ca7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x55b804704ca7 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55b804759cf8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x55b804759cf8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55b804759a4e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55b804758106 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x55b8047597b2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55b804696dd5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55b8046971eb - core::panicking::assert_failed_inner::h0bba8b7c26ee4492
[INFO] [stdout]   20:     0x55b8046bc9ce - core::panicking::assert_failed::h0b3073a2bd14556d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:279:5
[INFO] [stdout]   21:     0x55b8046b7927 - <test_events::common::Event as gui::mergeable::Mergeable>::merge_with::h1787d705dfff2d44
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/common/mod.rs:70:11
[INFO] [stdout]   22:     0x55b8046a7f7d - gui::ui::merge::h8324b11b7037ef19
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:119:34
[INFO] [stdout]   23:     0x55b8046a928e - <gui::ui::Hooked as gui::ui::Hooker<E,M>>::invoke::{{closure}}::hb447649367452c7f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:148:20
[INFO] [stdout]   24:     0x55b8046b6fcd - <core::pin::Pin<P> as core::future::future::Future>::poll::h94635d9d92e731b9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/future/future.rs:125:9
[INFO] [stdout]   25:     0x55b8046a6cf1 - gui::ui::Ui<E,M>::handle::{{closure}}::h9215b5ca52a8427e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:644:73
[INFO] [stdout]   26:     0x55b8046b155a - test_events::hook_event_merging::{{closure}}::h0312fad53a335cc2
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:358:28
[INFO] [stdout]   27:     0x55b8046b710b - <core::pin::Pin<P> as core::future::future::Future>::poll::hf9bdec346383d3d2
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/future/future.rs:125:9
[INFO] [stdout]   28:     0x55b8046c5094 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::{{closure}}::h585fe4f71ccc3b4c
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:184:58
[INFO] [stdout]   29:     0x55b8046bd3a0 - tokio::coop::with_budget::{{closure}}::h4e577d05b77ee9b6
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:121:9
[INFO] [stdout]   30:     0x55b8046cabbe - std::thread::local::LocalKey<T>::try_with::h1d25a0f916048819
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:270:16
[INFO] [stdout]   31:     0x55b8046ca5ca - std::thread::local::LocalKey<T>::with::hea5b01213ad6c4a3
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:246:9
[INFO] [stdout]   32:     0x55b8046c30d5 - tokio::coop::with_budget::hddb11b218dde23d3
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:114:5
[INFO] [stdout]   33:     0x55b8046c30d5 - tokio::coop::budget::hd7929235bcbb87cf
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:98:5
[INFO] [stdout]   34:     0x55b8046c30d5 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::h7db4cb17ab8c4537
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:184:35
[INFO] [stdout]   35:     0x55b8046c9c81 - tokio::runtime::basic_scheduler::enter::{{closure}}::h80e043fe6d35fbac
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:266:29
[INFO] [stdout]   36:     0x55b8046b5447 - tokio::macros::scoped_tls::ScopedKey<T>::set::h04e2727831820fd8
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/macros/scoped_tls.rs:61:9
[INFO] [stdout]   37:     0x55b8046c8d73 - tokio::runtime::basic_scheduler::enter::h3081c4c0d11bda52
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:266:5
[INFO] [stdout]   38:     0x55b8046c0eab - tokio::runtime::basic_scheduler::Inner<P>::block_on::h816a720d077fe324
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:176:9
[INFO] [stdout]   39:     0x55b8046c57d2 - tokio::runtime::basic_scheduler::InnerGuard<P>::block_on::h483eccc01154a4e7
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:405:9
[INFO] [stdout]   40:     0x55b8046c6844 - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h9c51594e1d0cff8e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:136:24
[INFO] [stdout]   41:     0x55b8046b6579 - tokio::runtime::Runtime::block_on::h625f261419d1f207
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/mod.rs:450:46
[INFO] [stdout]   42:     0x55b8046b1185 - test_events::hook_event_merging::hd774f84e85e95ca2
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:326:1
[INFO] [stdout]   43:     0x55b8046b10c7 - test_events::hook_event_merging::{{closure}}::hd200a9961ca8ee07
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:328:30
[INFO] [stdout]   44:     0x55b8046ba4e6 - core::ops::function::FnOnce::call_once::h3985e98c9fccbe08
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x55b80470a2ff - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x55b80470a2ff - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   47:     0x55b804709315 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   48:     0x55b804709315 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   49:     0x55b804709315 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   50:     0x55b804709315 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   51:     0x55b804709315 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   52:     0x55b804709315 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   53:     0x55b804709315 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   54:     0x55b8046d15d6 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   55:     0x55b8046d15d6 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   56:     0x55b8046d6687 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   57:     0x55b8046d6687 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   58:     0x55b8046d6687 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   59:     0x55b8046d6687 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   60:     0x55b8046d6687 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   61:     0x55b8046d6687 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   62:     0x55b8046d6687 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   63:     0x55b80475e785 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   64:     0x55b80475e785 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   65:     0x55b80475e785 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   66:     0x7f505915eac3 - <unknown>
[INFO] [stdout]   67:     0x7f50591efbf4 - __clone
[INFO] [stdout]   68:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: `"assertion `left == right` failed\n  left: 'a'\n right: 'z'"`,
[INFO] [stdout]  expected substring: `"`(left == right)`\n  left: `'a'`,\n right: `'z'`"`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     hook_event_merging
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_events`
[INFO] running `Command { std: "docker" "inspect" "930517ac92b30457b03e9145320fc2f5311c7c3ec7e4c773f43a790976f50f5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930517ac92b30457b03e9145320fc2f5311c7c3ec7e4c773f43a790976f50f5a", kill_on_drop: false }`
[INFO] [stdout] 930517ac92b30457b03e9145320fc2f5311c7c3ec7e4c773f43a790976f50f5a
[INFO] testing gui-0.6.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate gui 0.6.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate gui 0.6.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gui 0.6.0
[INFO] finished tweaking crates.io crate gui 0.6.0
[INFO] tweaked toml for crates.io crate gui 0.6.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b989de54ccd7474b6cccb085b3d2b4aa60b6c21543242d16c437a0824c6c2cd
[INFO] running `Command { std: "docker" "start" "-a" "9b989de54ccd7474b6cccb085b3d2b4aa60b6c21543242d16c437a0824c6c2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b989de54ccd7474b6cccb085b3d2b4aa60b6c21543242d16c437a0824c6c2cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b989de54ccd7474b6cccb085b3d2b4aa60b6c21543242d16c437a0824c6c2cd", kill_on_drop: false }`
[INFO] [stdout] 9b989de54ccd7474b6cccb085b3d2b4aa60b6c21543242d16c437a0824c6c2cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e27b25b07b4172e577f50a586d7e45d0edc4f805b052adbcb5ab0a0bb74c53
[INFO] running `Command { std: "docker" "start" "-a" "19e27b25b07b4172e577f50a586d7e45d0edc4f805b052adbcb5ab0a0bb74c53", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gui-derive v0.6.0
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "19e27b25b07b4172e577f50a586d7e45d0edc4f805b052adbcb5ab0a0bb74c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e27b25b07b4172e577f50a586d7e45d0edc4f805b052adbcb5ab0a0bb74c53", kill_on_drop: false }`
[INFO] [stdout] 19e27b25b07b4172e577f50a586d7e45d0edc4f805b052adbcb5ab0a0bb74c53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 414fe93565cb29fb7e65d53bcb4efc1c0e96235cf4726a44e0dddfd8be1608c6
[INFO] running `Command { std: "docker" "start" "-a" "414fe93565cb29fb7e65d53bcb4efc1c0e96235cf4726a44e0dddfd8be1608c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gui v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `children` is never read
[INFO] [stdout]   --> src/placeholder.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct Placeholder {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] 40 |   children: Vec<Id>,
[INFO] [stdout]    |   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `object` is never read
[INFO] [stdout]    --> tests/test_ui.rs:618:3
[INFO] [stdout]     |
[INFO] [stdout] 616 | struct MovingWidget {
[INFO] [stdout]     |        ------------ field in this struct
[INFO] [stdout] 617 |   id: Id,
[INFO] [stdout] 618 |   object: Moveable,
[INFO] [stdout]     |   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MovingWidget` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/test_ui.rs:107:42
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stdout]     |                                          +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "414fe93565cb29fb7e65d53bcb4efc1c0e96235cf4726a44e0dddfd8be1608c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414fe93565cb29fb7e65d53bcb4efc1c0e96235cf4726a44e0dddfd8be1608c6", kill_on_drop: false }`
[INFO] [stdout] 414fe93565cb29fb7e65d53bcb4efc1c0e96235cf4726a44e0dddfd8be1608c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 186ffac85162e7347f3e4fd8171e89ea7b7776b5320084f3abd0876a9d3de235
[INFO] running `Command { std: "docker" "start" "-a" "186ffac85162e7347f3e4fd8171e89ea7b7776b5320084f3abd0876a9d3de235", kill_on_drop: false }`
[INFO] [stderr] warning: field `children` is never read
[INFO] [stderr]   --> src/placeholder.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub(crate) struct Placeholder {
[INFO] [stderr]    |                   ----------- field in this struct
[INFO] [stderr] 40 |   children: Vec<Id>,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Placeholder` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `gui` (lib) generated 1 warning
[INFO] [stderr] warning: field `object` is never read
[INFO] [stderr]    --> tests/test_ui.rs:618:3
[INFO] [stderr]     |
[INFO] [stderr] 616 | struct MovingWidget {
[INFO] [stderr]     |        ------------ field in this struct
[INFO] [stderr] 617 |   id: Id,
[INFO] [stderr] 618 |   object: Moveable,
[INFO] [stderr]     |   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `MovingWidget` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/test_ui.rs:107:42
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), string);
[INFO] [stderr]     |                                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 107 |     assert!(string.starts_with("Ui { "), "{}", string);
[INFO] [stderr]     |                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `gui` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `gui` (test "test_ui") generated 2 warnings (run `cargo fix --test "test_ui"` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gui-e2497bcb06ca54b2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_events.rs (/opt/rustwide/target/debug/deps/test_events-7114986ea3adb811)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test event_propagation ... ok
[INFO] [stdout] test events_bubble_up_when_unhandled ... ok
[INFO] [stdout] test event_handling_with_focus ... ok
[INFO] [stdout] test hook_can_send_message ... ok
[INFO] [stdout] test hook_emitted_events ... ok
[INFO] [stdout] test hook_events_handler ... ok
[INFO] [stdout] test hook_events_return_value ... ok
[INFO] [stdout] test targeted_event_returned_on_no_focus ... ok
[INFO] [stdout] test hook_event_merging - should panic ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- hook_event_merging stdout ----
[INFO] [stdout] thread 'hook_event_merging' panicked at tests/common/mod.rs:70:11:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 'a'
[INFO] [stdout]  right: 'z'
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556f0d3fbd06 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x556f0d3fbd06 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556f0d3fbd06 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x556f0d3fbd06 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x556f0d424d20 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x556f0d424d20 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x556f0d3f972f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x556f0d3fbae4 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x556f0d3fbae4 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x556f0d3fd857 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x556f0d3fd53d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x556f0d3a8857 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x556f0d3a8857 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x556f0d3fde76 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x556f0d3fde76 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x556f0d3fdbc2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x556f0d3fc206 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x556f0d3fd920 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x556f0d339db5 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x556f0d33a1eb - core::panicking::assert_failed_inner::h9f13e27dd63c3a08
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:342:17
[INFO] [stdout]   20:     0x556f0d3577ce - core::panicking::assert_failed::ha9eb0e0c6a409bdf
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:297:5
[INFO] [stdout]   21:     0x556f0d35b395 - <test_events::common::Event as gui::mergeable::Mergeable>::merge_with::hb65595d3690176bd
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/common/mod.rs:70:11
[INFO] [stdout]   22:     0x556f0d34af3d - gui::ui::merge::h46f119c354b19ae2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:119:34
[INFO] [stdout]   23:     0x556f0d34c2d8 - <gui::ui::Hooked as gui::ui::Hooker<E,M>>::invoke::{{closure}}::h80704fa09172cebe
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:148:20
[INFO] [stdout]   24:     0x556f0d35ad3d - <core::pin::Pin<P> as core::future::future::Future>::poll::h85b038adb5653820
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/future/future.rs:124:9
[INFO] [stdout]   25:     0x556f0d349cad - gui::ui::Ui<E,M>::handle::{{closure}}::ha0c9f1dcb10c3aab
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ui.rs:644:73
[INFO] [stdout]   26:     0x556f0d3544d4 - test_events::hook_event_merging::{{closure}}::h47ca5a8667e3273a
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:358:28
[INFO] [stdout]   27:     0x556f0d35accb - <core::pin::Pin<P> as core::future::future::Future>::poll::h838a8b470bd70535
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/future/future.rs:124:9
[INFO] [stdout]   28:     0x556f0d367d84 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::{{closure}}::h89e958fe88e099e6
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:184:58
[INFO] [stdout]   29:     0x556f0d361de0 - tokio::coop::with_budget::{{closure}}::ha9e533be5efa61fe
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:121:9
[INFO] [stdout]   30:     0x556f0d36d7fe - std::thread::local::LocalKey<T>::try_with::h1dbff48722aa40f6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/local.rs:270:16
[INFO] [stdout]   31:     0x556f0d36cf4a - std::thread::local::LocalKey<T>::with::h78526a932140c9f8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/local.rs:246:9
[INFO] [stdout]   32:     0x556f0d364e49 - tokio::coop::with_budget::h6c11ee25bf4bd88b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:114:5
[INFO] [stdout]   33:     0x556f0d364e49 - tokio::coop::budget::hf6d070788601261c
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/coop.rs:98:5
[INFO] [stdout]   34:     0x556f0d364e49 - tokio::runtime::basic_scheduler::Inner<P>::block_on::{{closure}}::h72ac3f2ecd6a86d7
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:184:35
[INFO] [stdout]   35:     0x556f0d36c991 - tokio::runtime::basic_scheduler::enter::{{closure}}::he820bfffb2a98925
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:266:29
[INFO] [stdout]   36:     0x556f0d35a007 - tokio::macros::scoped_tls::ScopedKey<T>::set::h4ff32bd828567422
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/macros/scoped_tls.rs:61:9
[INFO] [stdout]   37:     0x556f0d36bd36 - tokio::runtime::basic_scheduler::enter::haaba466719551edc
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:266:5
[INFO] [stdout]   38:     0x556f0d363bdb - tokio::runtime::basic_scheduler::Inner<P>::block_on::hac4c8dffb5af82c6
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:176:9
[INFO] [stdout]   39:     0x556f0d36841e - tokio::runtime::basic_scheduler::InnerGuard<P>::block_on::h7ab8b0355559545d
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:405:9
[INFO] [stdout]   40:     0x556f0d369bda - tokio::runtime::basic_scheduler::BasicScheduler<P>::block_on::h79c3767f4766a9d6
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/basic_scheduler.rs:136:24
[INFO] [stdout]   41:     0x556f0d363379 - tokio::runtime::Runtime::block_on::hd014013416268767
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-0.3.7/src/runtime/mod.rs:450:46
[INFO] [stdout]   42:     0x556f0d354105 - test_events::hook_event_merging::h7ecd4dcf100d1009
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:326:1
[INFO] [stdout]   43:     0x556f0d354047 - test_events::hook_event_merging::{{closure}}::h20f2a470ad743825
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_events.rs:328:30
[INFO] [stdout]   44:     0x556f0d35e106 - core::ops::function::FnOnce::call_once::h456ca87bcc9889c3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x556f0d3ae12f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x556f0d3ae12f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   47:     0x556f0d3aceb1 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   48:     0x556f0d3aceb1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   49:     0x556f0d3aceb1 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   50:     0x556f0d3aceb1 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   51:     0x556f0d3aceb1 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   52:     0x556f0d3aceb1 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   53:     0x556f0d3aceb1 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   54:     0x556f0d3741e6 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   55:     0x556f0d3741e6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   56:     0x556f0d379247 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   57:     0x556f0d379247 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   58:     0x556f0d379247 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   59:     0x556f0d379247 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   60:     0x556f0d379247 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   61:     0x556f0d379247 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   62:     0x556f0d379247 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   63:     0x556f0d402925 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   64:     0x556f0d402925 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   65:     0x556f0d402925 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   66:     0x7f14afaabac3 - <unknown>
[INFO] [stdout]   67:     0x7f14afb3cbf4 - __clone
[INFO] [stdout]   68:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: `"assertion `left == right` failed\n  left: 'a'\n right: 'z'"`,
[INFO] [stdout]  expected substring: `"`(left == right)`\n  left: `'a'`,\n right: `'z'`"`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     hook_event_merging
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_events`
[INFO] running `Command { std: "docker" "inspect" "186ffac85162e7347f3e4fd8171e89ea7b7776b5320084f3abd0876a9d3de235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186ffac85162e7347f3e4fd8171e89ea7b7776b5320084f3abd0876a9d3de235", kill_on_drop: false }`
[INFO] [stdout] 186ffac85162e7347f3e4fd8171e89ea7b7776b5320084f3abd0876a9d3de235
