[INFO] fetching crate graviton_backend 0.6.0...
[INFO] documenting graviton_backend-0.6.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate graviton_backend 0.6.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate graviton_backend 0.6.0 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 graviton_backend 0.6.0
[INFO] finished tweaking crates.io crate graviton_backend 0.6.0
[INFO] tweaked toml for crates.io crate graviton_backend 0.6.0 written to /workspace/builds/worker-8/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-entity v0.56.0
[INFO] [stderr]   Downloaded cranelift-faerie v0.56.0
[INFO] [stderr]   Downloaded cranelift v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.56.0
[INFO] [stderr]   Downloaded cranelift-native v0.56.0
[INFO] [stderr]   Downloaded cranelift-module v0.56.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.56.0
[INFO] [stderr]   Downloaded cranelift-bforest v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.56.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.56.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 7c23cff4bdf5c3fffb49a9e170dbac3fbf57d14926cebb0203ba58dd66d01356
[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" "7c23cff4bdf5c3fffb49a9e170dbac3fbf57d14926cebb0203ba58dd66d01356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c23cff4bdf5c3fffb49a9e170dbac3fbf57d14926cebb0203ba58dd66d01356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c23cff4bdf5c3fffb49a9e170dbac3fbf57d14926cebb0203ba58dd66d01356", kill_on_drop: false }`
[INFO] [stdout] 7c23cff4bdf5c3fffb49a9e170dbac3fbf57d14926cebb0203ba58dd66d01356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 73f3065c01df635d132677cc39a92500b1c3ef7bf48e543fd5a25614e992a966
[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" "73f3065c01df635d132677cc39a92500b1c3ef7bf48e543fd5a25614e992a966", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.56.0
[INFO] [stderr]    Compiling cranelift-entity v0.56.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking graviton_core v0.6.0
[INFO] [stderr]     Checking cranelift-bforest v0.56.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.56.0
[INFO] [stderr]     Checking graviton_ast v0.6.0
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking typetag v0.1.5
[INFO] [stderr]     Checking goblin v0.1.3
[INFO] [stderr]     Checking faerie v0.14.0
[INFO] [stderr]    Compiling cranelift-codegen v0.56.0
[INFO] [stderr]     Checking cranelift-frontend v0.56.0
[INFO] [stderr]     Checking cranelift-module v0.56.0
[INFO] [stderr]     Checking cranelift-native v0.56.0
[INFO] [stderr]     Checking cranelift-faerie v0.56.0
[INFO] [stderr]     Checking cranelift v0.56.0
[INFO] [stderr]  Documenting graviton_backend v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.22s
[INFO] running `Command { std: "docker" "inspect" "73f3065c01df635d132677cc39a92500b1c3ef7bf48e543fd5a25614e992a966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f3065c01df635d132677cc39a92500b1c3ef7bf48e543fd5a25614e992a966", kill_on_drop: false }`
[INFO] [stdout] 73f3065c01df635d132677cc39a92500b1c3ef7bf48e543fd5a25614e992a966