[INFO] fetching crate ipp-util 1.0.1...
[INFO] documenting ipp-util-1.0.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate ipp-util 1.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ipp-util 1.0.1 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 ipp-util 1.0.1
[INFO] finished tweaking crates.io crate ipp-util 1.0.1
[INFO] tweaked toml for crates.io crate ipp-util 1.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ipp-util 1.0.1 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] [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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d04b404b31089c2fbe9c8cff5cf55ecd92b655884bf605efdc17216e13e7d60c
[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" "d04b404b31089c2fbe9c8cff5cf55ecd92b655884bf605efdc17216e13e7d60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d04b404b31089c2fbe9c8cff5cf55ecd92b655884bf605efdc17216e13e7d60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04b404b31089c2fbe9c8cff5cf55ecd92b655884bf605efdc17216e13e7d60c", kill_on_drop: false }`
[INFO] [stdout] d04b404b31089c2fbe9c8cff5cf55ecd92b655884bf605efdc17216e13e7d60c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e490d0de829ebb8fa57b7b7891fcef6377c93c5ef9db8560f26eb6b7efe9d2a
[INFO] running `Command { std: "docker" "start" "-a" "4e490d0de829ebb8fa57b7b7891fcef6377c93c5ef9db8560f26eb6b7efe9d2a", 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] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling isahc v0.9.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking openssl-sys v0.9.55
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling enum-primitive-derive v0.1.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.6
[INFO] [stderr]     Checking structopt v0.3.13
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking ipp v1.0.1
[INFO] [stderr]  Documenting ipp-util v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.55s
[INFO] running `Command { std: "docker" "inspect" "4e490d0de829ebb8fa57b7b7891fcef6377c93c5ef9db8560f26eb6b7efe9d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e490d0de829ebb8fa57b7b7891fcef6377c93c5ef9db8560f26eb6b7efe9d2a", kill_on_drop: false }`
[INFO] [stdout] 4e490d0de829ebb8fa57b7b7891fcef6377c93c5ef9db8560f26eb6b7efe9d2a