[INFO] fetching crate xactor 0.7.7...
[INFO] documenting xactor-0.7.7 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate xactor 0.7.7 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate xactor 0.7.7 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xactor 0.7.7
[INFO] finished tweaking crates.io crate xactor 0.7.7
[INFO] tweaked toml for crates.io crate xactor 0.7.7 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate xactor 0.7.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 919de74b9a03f2e906a7b3a648dbe9ed0ae74cb26f93fd13b30bfda5651a5773
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "919de74b9a03f2e906a7b3a648dbe9ed0ae74cb26f93fd13b30bfda5651a5773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "919de74b9a03f2e906a7b3a648dbe9ed0ae74cb26f93fd13b30bfda5651a5773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "919de74b9a03f2e906a7b3a648dbe9ed0ae74cb26f93fd13b30bfda5651a5773", kill_on_drop: false }`
[INFO] [stdout] 919de74b9a03f2e906a7b3a648dbe9ed0ae74cb26f93fd13b30bfda5651a5773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af0ba5af51ad839963fe69435b43139f469bf81ab570e4f4932b104757b5cb60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "af0ba5af51ad839963fe69435b43139f469bf81ab570e4f4932b104757b5cb60", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]     Checking event-listener v2.3.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking concurrent-queue v1.2.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking futures-lite v0.1.10
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling xactor-derive v0.7.1
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]  Documenting xactor v0.7.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: Rust code block is empty
[INFO] [stdout]    --> src/context.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     /// ```
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 129 |     /// ```text
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.88s
[INFO] running `Command { std: "docker" "inspect" "af0ba5af51ad839963fe69435b43139f469bf81ab570e4f4932b104757b5cb60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0ba5af51ad839963fe69435b43139f469bf81ab570e4f4932b104757b5cb60", kill_on_drop: false }`
[INFO] [stdout] af0ba5af51ad839963fe69435b43139f469bf81ab570e4f4932b104757b5cb60