[INFO] fetching crate hangar 0.0.4...
[INFO] documenting hangar-0.0.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate hangar 0.0.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate hangar 0.0.4 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 hangar 0.0.4
[INFO] finished tweaking crates.io crate hangar 0.0.4
[INFO] tweaked toml for crates.io crate hangar 0.0.4 written to /workspace/builds/worker-12/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 cargo_metadata v0.1.2
[INFO] [stderr]   Downloaded cargo-shim v0.1.5
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6c51c062bc7f6704ae39d9ad8b46ba90a6dc56ac0c7e84dca79f530370d6d74
[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" "d6c51c062bc7f6704ae39d9ad8b46ba90a6dc56ac0c7e84dca79f530370d6d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6c51c062bc7f6704ae39d9ad8b46ba90a6dc56ac0c7e84dca79f530370d6d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c51c062bc7f6704ae39d9ad8b46ba90a6dc56ac0c7e84dca79f530370d6d74", kill_on_drop: false }`
[INFO] [stdout] d6c51c062bc7f6704ae39d9ad8b46ba90a6dc56ac0c7e84dca79f530370d6d74
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7000a57ee0a68fc20295f7ff7b2df5dfb186af0707a384202a64f67fa4e88a8
[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" "e7000a57ee0a68fc20295f7ff7b2df5dfb186af0707a384202a64f67fa4e88a8", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]     Checking cargo_metadata v0.1.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking cargo-shim v0.1.5
[INFO] [stderr]     Checking tera v0.11.20
[INFO] [stderr]  Documenting hangar v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `Command { std: "docker" "inspect" "e7000a57ee0a68fc20295f7ff7b2df5dfb186af0707a384202a64f67fa4e88a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7000a57ee0a68fc20295f7ff7b2df5dfb186af0707a384202a64f67fa4e88a8", kill_on_drop: false }`
[INFO] [stdout] e7000a57ee0a68fc20295f7ff7b2df5dfb186af0707a384202a64f67fa4e88a8