[INFO] fetching crate picorv32-rt 0.5.3...
[INFO] documenting picorv32-rt-0.5.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate picorv32-rt 0.5.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate picorv32-rt 0.5.3 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 picorv32-rt 0.5.3
[INFO] finished tweaking crates.io crate picorv32-rt 0.5.3
[INFO] tweaked toml for crates.io crate picorv32-rt 0.5.3 written to /workspace/builds/worker-3/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 picorv32-rt-macros v0.1.5
[INFO] [stderr]   Downloaded riscv v0.5.4
[INFO] [stderr]   Downloaded picorv32 v0.1.3
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b6cd6f8f676180f607b2403776fbea81676161777ff50f76a2d69bfdc90c3adc
[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" "b6cd6f8f676180f607b2403776fbea81676161777ff50f76a2d69bfdc90c3adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6cd6f8f676180f607b2403776fbea81676161777ff50f76a2d69bfdc90c3adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6cd6f8f676180f607b2403776fbea81676161777ff50f76a2d69bfdc90c3adc", kill_on_drop: false }`
[INFO] [stdout] b6cd6f8f676180f607b2403776fbea81676161777ff50f76a2d69bfdc90c3adc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 6c4452b198304dbf8b61af296ffa5155a0a5421ffa5aa99d735fc4b583cf7c3f
[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" "6c4452b198304dbf8b61af296ffa5155a0a5421ffa5aa99d735fc4b583cf7c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling riscv v0.5.4
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling picorv32-rt v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling picorv32 v0.1.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling picorv32-rt-macros v0.1.5
[INFO] [stderr]  Documenting picorv32-rt v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.23s
[INFO] running `Command { std: "docker" "inspect" "6c4452b198304dbf8b61af296ffa5155a0a5421ffa5aa99d735fc4b583cf7c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c4452b198304dbf8b61af296ffa5155a0a5421ffa5aa99d735fc4b583cf7c3f", kill_on_drop: false }`
[INFO] [stdout] 6c4452b198304dbf8b61af296ffa5155a0a5421ffa5aa99d735fc4b583cf7c3f