[INFO] fetching crate hush 0.1.4...
[INFO] documenting hush-0.1.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate hush 0.1.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate hush 0.1.4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hush 0.1.4
[INFO] finished tweaking crates.io crate hush 0.1.4
[INFO] tweaked toml for crates.io crate hush 0.1.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate hush 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16fc9c7f761b086964671ec1e6b06e3fa6e641c706e5374e1ebc079cab400e96
[INFO] running `Command { std: "docker" "start" "-a" "16fc9c7f761b086964671ec1e6b06e3fa6e641c706e5374e1ebc079cab400e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16fc9c7f761b086964671ec1e6b06e3fa6e641c706e5374e1ebc079cab400e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fc9c7f761b086964671ec1e6b06e3fa6e641c706e5374e1ebc079cab400e96", kill_on_drop: false }`
[INFO] [stdout] 16fc9c7f761b086964671ec1e6b06e3fa6e641c706e5374e1ebc079cab400e96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f18a281d647cbdc6d4a3c8a2caa89b1487616864c9fb75afbcb0b5b3fddf719
[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" "4f18a281d647cbdc6d4a3c8a2caa89b1487616864c9fb75afbcb0b5b3fddf719", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking intaglio v1.2.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking os_pipe v1.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling gc_derive v0.4.1
[INFO] [stderr]    Compiling automod v1.0.2
[INFO] [stderr]     Checking gc v0.4.1
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr]  Documenting hush v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.81s
[INFO] running `Command { std: "docker" "inspect" "4f18a281d647cbdc6d4a3c8a2caa89b1487616864c9fb75afbcb0b5b3fddf719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f18a281d647cbdc6d4a3c8a2caa89b1487616864c9fb75afbcb0b5b3fddf719", kill_on_drop: false }`
[INFO] [stdout] 4f18a281d647cbdc6d4a3c8a2caa89b1487616864c9fb75afbcb0b5b3fddf719