[INFO] fetching crate tower-web 0.3.7...
[INFO] documenting tower-web-0.3.7 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate tower-web 0.3.7 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tower-web 0.3.7 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 tower-web 0.3.7
[INFO] finished tweaking crates.io crate tower-web 0.3.7
[INFO] tweaked toml for crates.io crate tower-web 0.3.7 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 5dcb583ec66023d1e4ccf3f8196c4e3ad53c4decd3009f700eb3710cbe507b37
[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" "5dcb583ec66023d1e4ccf3f8196c4e3ad53c4decd3009f700eb3710cbe507b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dcb583ec66023d1e4ccf3f8196c4e3ad53c4decd3009f700eb3710cbe507b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dcb583ec66023d1e4ccf3f8196c4e3ad53c4decd3009f700eb3710cbe507b37", kill_on_drop: false }`
[INFO] [stdout] 5dcb583ec66023d1e4ccf3f8196c4e3ad53c4decd3009f700eb3710cbe507b37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 2b1ca02d3585887f300353aec8dbd09ab7910c990b9e7f03b967877eace76a55
[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" "2b1ca02d3585887f300353aec8dbd09ab7910c990b9e7f03b967877eace76a55", kill_on_drop: false }`
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]     Checking atoi v0.2.3
[INFO] [stderr]     Checking serde_plain v0.3.0
[INFO] [stderr]     Checking checked v0.5.0
[INFO] [stderr]     Checking headers-core v0.1.1
[INFO] [stderr]     Checking handlebars v1.0.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking headers v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tokio v0.1.19
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling tower-web-macros v0.3.5
[INFO] [stderr]  Documenting tower-web v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.80s
[INFO] running `Command { std: "docker" "inspect" "2b1ca02d3585887f300353aec8dbd09ab7910c990b9e7f03b967877eace76a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1ca02d3585887f300353aec8dbd09ab7910c990b9e7f03b967877eace76a55", kill_on_drop: false }`
[INFO] [stdout] 2b1ca02d3585887f300353aec8dbd09ab7910c990b9e7f03b967877eace76a55