[INFO] fetching crate event 0.2.1...
[INFO] documenting event-0.2.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate event 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate event 0.2.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate event 0.2.1
[INFO] finished tweaking crates.io crate event 0.2.1
[INFO] tweaked toml for crates.io crate event 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8cf3d542de1cd316dd1030872539389f3d0d4aefdc90aa1fe482dcf1bb68798
[INFO] running `Command { std: "docker" "start" "-a" "a8cf3d542de1cd316dd1030872539389f3d0d4aefdc90aa1fe482dcf1bb68798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8cf3d542de1cd316dd1030872539389f3d0d4aefdc90aa1fe482dcf1bb68798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8cf3d542de1cd316dd1030872539389f3d0d4aefdc90aa1fe482dcf1bb68798", kill_on_drop: false }`
[INFO] [stdout] a8cf3d542de1cd316dd1030872539389f3d0d4aefdc90aa1fe482dcf1bb68798
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c559d3d9036d8e34c76c8e9107a44da3734354a13f9592030ddf197bce25a3b
[INFO] running `Command { std: "docker" "start" "-a" "9c559d3d9036d8e34c76c8e9107a44da3734354a13f9592030ddf197bce25a3b", kill_on_drop: false }`
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]  Documenting event v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]   --> src/lib.rs:35:47
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = events.send(Registration::new(box handler));
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = events.send(Registration::new(Box::new(handler)));
[INFO] [stdout]    |                                               ~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `event`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name event src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b2bbb723efb6f1d4 -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-3e075563a9423780.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-35e9ee95ea10a05a.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9c559d3d9036d8e34c76c8e9107a44da3734354a13f9592030ddf197bce25a3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c559d3d9036d8e34c76c8e9107a44da3734354a13f9592030ddf197bce25a3b", kill_on_drop: false }`
[INFO] [stdout] 9c559d3d9036d8e34c76c8e9107a44da3734354a13f9592030ddf197bce25a3b
