[INFO] fetching crate heca 1.4.3...
[INFO] documenting heca-1.4.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate heca 1.4.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate heca 1.4.3 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 heca 1.4.3
[INFO] finished tweaking crates.io crate heca 1.4.3
[INFO] tweaked toml for crates.io crate heca 1.4.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate heca 1.4.3 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 once_cell v1.3.0
[INFO] [stderr]   Downloaded heca-lib v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1443ee08e79ab7590308d436dd97e580676e54d658e3a4dfc6ad077cfa440881
[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" "1443ee08e79ab7590308d436dd97e580676e54d658e3a4dfc6ad077cfa440881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1443ee08e79ab7590308d436dd97e580676e54d658e3a4dfc6ad077cfa440881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1443ee08e79ab7590308d436dd97e580676e54d658e3a4dfc6ad077cfa440881", kill_on_drop: false }`
[INFO] [stdout] 1443ee08e79ab7590308d436dd97e580676e54d658e3a4dfc6ad077cfa440881
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b8f29ed36841d061db926201657c9734c5a5c0b21b691196886a38b11c2cb03e
[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" "b8f29ed36841d061db926201657c9734c5a5c0b21b691196886a38b11c2cb03e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling cpuprofiler v0.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking heca-lib v1.3.1
[INFO] [stderr]  Documenting heca v1.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.79s
[INFO] running `Command { std: "docker" "inspect" "b8f29ed36841d061db926201657c9734c5a5c0b21b691196886a38b11c2cb03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f29ed36841d061db926201657c9734c5a5c0b21b691196886a38b11c2cb03e", kill_on_drop: false }`
[INFO] [stdout] b8f29ed36841d061db926201657c9734c5a5c0b21b691196886a38b11c2cb03e