[INFO] fetching crate k-event-system 0.1.0...
[INFO] testing k-event-system-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate k-event-system 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate k-event-system 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate k-event-system 0.1.0
[INFO] tweaked toml for crates.io crate k-event-system 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate k-event-system 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate k-event-system 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db26452012780ad15153035436f7a662ede185c585181cf6d455dc563d255335
[INFO] running `Command { std: "docker" "start" "-a" "db26452012780ad15153035436f7a662ede185c585181cf6d455dc563d255335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db26452012780ad15153035436f7a662ede185c585181cf6d455dc563d255335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db26452012780ad15153035436f7a662ede185c585181cf6d455dc563d255335", kill_on_drop: false }`
[INFO] [stdout] db26452012780ad15153035436f7a662ede185c585181cf6d455dc563d255335
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c184de07a5d774c80735f3deb453849d0ae594a334d52faf22698c73e3f0a1fe
[INFO] running `Command { std: "docker" "start" "-a" "c184de07a5d774c80735f3deb453849d0ae594a334d52faf22698c73e3f0a1fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling owned-alloc v0.2.0
[INFO] [stderr]    Compiling lockfree v0.5.1
[INFO] [stderr]    Compiling k-event-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "c184de07a5d774c80735f3deb453849d0ae594a334d52faf22698c73e3f0a1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c184de07a5d774c80735f3deb453849d0ae594a334d52faf22698c73e3f0a1fe", kill_on_drop: false }`
[INFO] [stdout] c184de07a5d774c80735f3deb453849d0ae594a334d52faf22698c73e3f0a1fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1614fa2762a08fbfd164316cdebc255de36dc8172ca7596f27356ae4b83f9c3a
[INFO] running `Command { std: "docker" "start" "-a" "1614fa2762a08fbfd164316cdebc255de36dc8172ca7596f27356ae4b83f9c3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.46.1
[INFO] [stderr]    Compiling k-event-system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `event_system`
[INFO] [stdout]  --> examples/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use event_system::EventSystem;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `event_system`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 | use k_event_system::EventSystem;
[INFO] [stdout]   |     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `event_system`
[INFO] [stdout]  --> examples/main-async.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use event_system::EventSystem;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `event_system`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 1 | use k_event_system::EventSystem;
[INFO] [stdout]   |     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `k-event-system` (example "main") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `k-event-system` (example "main-async") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1614fa2762a08fbfd164316cdebc255de36dc8172ca7596f27356ae4b83f9c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1614fa2762a08fbfd164316cdebc255de36dc8172ca7596f27356ae4b83f9c3a", kill_on_drop: false }`
[INFO] [stdout] 1614fa2762a08fbfd164316cdebc255de36dc8172ca7596f27356ae4b83f9c3a