[INFO] fetching crate event 0.2.1...
[INFO] documenting event-0.2.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate event 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate event 0.2.1 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 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-0-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ed83a0c8c1e3f75def8f0f3d09c96a72bafcba49bdc66a4dca6a3e13d6ee1e1a
[INFO] running `Command { std: "docker" "start" "-a" "ed83a0c8c1e3f75def8f0f3d09c96a72bafcba49bdc66a4dca6a3e13d6ee1e1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed83a0c8c1e3f75def8f0f3d09c96a72bafcba49bdc66a4dca6a3e13d6ee1e1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed83a0c8c1e3f75def8f0f3d09c96a72bafcba49bdc66a4dca6a3e13d6ee1e1a", kill_on_drop: false }`
[INFO] [stdout] ed83a0c8c1e3f75def8f0f3d09c96a72bafcba49bdc66a4dca6a3e13d6ee1e1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2bf030c531baecc3be6033ceac33a660f27e4db20511464e7a89fef9608eccd
[INFO] running `Command { std: "docker" "start" "-a" "e2bf030c531baecc3be6033ceac33a660f27e4db20511464e7a89fef9608eccd", kill_on_drop: false }`
[INFO] [stderr]     Checking mio v0.8.10
[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: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/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=5cf6e8e78c05bf87 -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-91e42ebaf8a62e54.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-c104c78e48494b6e.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e2bf030c531baecc3be6033ceac33a660f27e4db20511464e7a89fef9608eccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2bf030c531baecc3be6033ceac33a660f27e4db20511464e7a89fef9608eccd", kill_on_drop: false }`
[INFO] [stdout] e2bf030c531baecc3be6033ceac33a660f27e4db20511464e7a89fef9608eccd
