[INFO] fetching crate accel 0.3.1...
[INFO] documenting accel-0.3.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate accel 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate accel 0.3.1 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 accel 0.3.1
[INFO] finished tweaking crates.io crate accel 0.3.1
[INFO] tweaked toml for crates.io crate accel 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate accel 0.3.1 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 paste-impl v0.1.13
[INFO] [stderr]   Downloaded paste v0.1.13
[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] 6859307a0f26a274f56af85e49af3ea389bd16c70d1e391e7ee1fc0e2ae5640c
[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" "6859307a0f26a274f56af85e49af3ea389bd16c70d1e391e7ee1fc0e2ae5640c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6859307a0f26a274f56af85e49af3ea389bd16c70d1e391e7ee1fc0e2ae5640c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6859307a0f26a274f56af85e49af3ea389bd16c70d1e391e7ee1fc0e2ae5640c", kill_on_drop: false }`
[INFO] [stdout] 6859307a0f26a274f56af85e49af3ea389bd16c70d1e391e7ee1fc0e2ae5640c
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4d523f923de2da95987037a63c043d6206e56313301ab18bb7cc6dc57331757
[INFO] running `Command { std: "docker" "start" "-a" "b4d523f923de2da95987037a63c043d6206e56313301ab18bb7cc6dc57331757", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling cuda-config v0.1.0
[INFO] [stderr]    Compiling cuda-driver-sys v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling paste-impl v0.1.13
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking paste v0.1.13
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling accel-derive v0.3.0
[INFO] [stderr]  Documenting accel v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "b4d523f923de2da95987037a63c043d6206e56313301ab18bb7cc6dc57331757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d523f923de2da95987037a63c043d6206e56313301ab18bb7cc6dc57331757", kill_on_drop: false }`
[INFO] [stdout] b4d523f923de2da95987037a63c043d6206e56313301ab18bb7cc6dc57331757