[INFO] fetching crate gantryclient 0.0.7...
[INFO] documenting gantryclient-0.0.7 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate gantryclient 0.0.7 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate gantryclient 0.0.7 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gantryclient 0.0.7
[INFO] finished tweaking crates.io crate gantryclient 0.0.7
[INFO] tweaked toml for crates.io crate gantryclient 0.0.7 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signatory-dalek v0.18.1
[INFO] [stderr]   Downloaded ed25519 v1.0.0-pre.1
[INFO] [stderr]   Downloaded subtle-encoding v0.4.1
[INFO] [stderr]   Downloaded signature v1.0.0-pre.1
[INFO] [stderr]   Downloaded nkeys v0.0.9
[INFO] [stderr]   Downloaded nuid v0.2.1
[INFO] [stderr]   Downloaded gantry-protocol v0.0.6
[INFO] [stderr]   Downloaded natsclient v0.0.7
[INFO] [stderr]   Downloaded nats-types v0.1.8
[INFO] [stderr]   Downloaded signatory v0.18.1
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 455d99faac2451c0b780aa4af06b893016518715fe6b53d9603ae64436ebbebe
[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" "455d99faac2451c0b780aa4af06b893016518715fe6b53d9603ae64436ebbebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "455d99faac2451c0b780aa4af06b893016518715fe6b53d9603ae64436ebbebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455d99faac2451c0b780aa4af06b893016518715fe6b53d9603ae64436ebbebe", kill_on_drop: false }`
[INFO] [stdout] 455d99faac2451c0b780aa4af06b893016518715fe6b53d9603ae64436ebbebe
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f21dfa4c21a13bad1373500f31f7ef5d201dae8bec9777045d261a2ce25ef4e
[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" "0f21dfa4c21a13bad1373500f31f7ef5d201dae8bec9777045d261a2ce25ef4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking signature v1.0.0-pre.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking ed25519 v1.0.0-pre.1
[INFO] [stderr]     Checking subtle-encoding v0.4.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking signatory v0.18.1
[INFO] [stderr]    Compiling curve25519-dalek v1.2.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking rmp-serde v0.14.4
[INFO] [stderr]     Checking nats-types v0.1.8
[INFO] [stderr]     Checking nuid v0.2.1
[INFO] [stderr]     Checking gantry-protocol v0.0.6
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking signatory-dalek v0.18.1
[INFO] [stderr]     Checking nkeys v0.0.9
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking natsclient v0.0.7
[INFO] [stderr]  Documenting gantryclient v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.95s
[INFO] running `Command { std: "docker" "inspect" "0f21dfa4c21a13bad1373500f31f7ef5d201dae8bec9777045d261a2ce25ef4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f21dfa4c21a13bad1373500f31f7ef5d201dae8bec9777045d261a2ce25ef4e", kill_on_drop: false }`
[INFO] [stdout] 0f21dfa4c21a13bad1373500f31f7ef5d201dae8bec9777045d261a2ce25ef4e