[INFO] fetching crate lifeline 0.2.0...
[INFO] documenting lifeline-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate lifeline 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lifeline 0.2.0 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 lifeline 0.2.0
[INFO] finished tweaking crates.io crate lifeline 0.2.0
[INFO] tweaked toml for crates.io crate lifeline 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate lifeline 0.2.0 already has a lockfile, it will not be regenerated
[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 traitcast_core v0.2.0
[INFO] [stderr]   Downloaded impls v1.0.3
[INFO] [stderr]   Downloaded traitcast v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4535d79eadd94968394c9739d1b03017079b5f2c3e90e1ac2a2109c1add6980b
[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" "4535d79eadd94968394c9739d1b03017079b5f2c3e90e1ac2a2109c1add6980b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4535d79eadd94968394c9739d1b03017079b5f2c3e90e1ac2a2109c1add6980b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4535d79eadd94968394c9739d1b03017079b5f2c3e90e1ac2a2109c1add6980b", kill_on_drop: false }`
[INFO] [stdout] 4535d79eadd94968394c9739d1b03017079b5f2c3e90e1ac2a2109c1add6980b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a182712b376da7060f50980370ff2bfbfa2f943b995eccb49b52b27b34045184
[INFO] running `Command { std: "docker" "start" "-a" "a182712b376da7060f50980370ff2bfbfa2f943b995eccb49b52b27b34045184", kill_on_drop: false }`
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking impls v1.0.3
[INFO] [stderr]     Checking dyn-clone v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.38
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking lru v0.6.0
[INFO] [stderr]     Checking inventory v0.1.8
[INFO] [stderr]     Checking traitcast_core v0.2.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking traitcast v0.5.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]  Documenting lifeline v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.76s
[INFO] running `Command { std: "docker" "inspect" "a182712b376da7060f50980370ff2bfbfa2f943b995eccb49b52b27b34045184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a182712b376da7060f50980370ff2bfbfa2f943b995eccb49b52b27b34045184", kill_on_drop: false }`
[INFO] [stdout] a182712b376da7060f50980370ff2bfbfa2f943b995eccb49b52b27b34045184