[INFO] fetching crate rexpaint 0.1.1...
[INFO] documenting rexpaint-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rexpaint 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate rexpaint 0.1.1 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 rexpaint 0.1.1
[INFO] finished tweaking crates.io crate rexpaint 0.1.1
[INFO] tweaked toml for crates.io crate rexpaint 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate rexpaint 0.1.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] [stderr]   Downloaded memchr v2.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded arrayvec v0.4.7
[INFO] [stderr]   Downloaded serde v1.0.80
[INFO] [stderr]   Downloaded flate2 v1.0.4
[INFO] [stderr]   Downloaded miniz_oxide v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded rayon v1.0.2
[INFO] [stderr]   Downloaded codepage-437 v0.1.0
[INFO] [stderr]   Downloaded noise v0.5.1
[INFO] [stderr]   Downloaded nodrop v0.1.12
[INFO] [stderr]   Downloaded rand v0.4.3
[INFO] [stderr]   Downloaded image v0.18.0
[INFO] [stderr]   Downloaded cc v1.0.25
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded tcod v0.12.1
[INFO] [stderr]   Downloaded tcod-sys v4.1.0
[INFO] [stderr]   Downloaded png v0.11.0
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded inflate v0.3.4
[INFO] [stderr]   Downloaded num_cpus v1.8.0
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded miniz-sys v0.1.11
[INFO] [stderr]   Downloaded byteorder v1.2.6
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded deflate v0.7.19
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.2.0
[INFO] [stderr]   Downloaded csv v1.0.2
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded rand v0.3.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] b17a74f7b73f7b142fd3ee4a1e618850453917d73dcebeeabe142379126ce443
[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" "b17a74f7b73f7b142fd3ee4a1e618850453917d73dcebeeabe142379126ce443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b17a74f7b73f7b142fd3ee4a1e618850453917d73dcebeeabe142379126ce443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17a74f7b73f7b142fd3ee4a1e618850453917d73dcebeeabe142379126ce443", kill_on_drop: false }`
[INFO] [stdout] b17a74f7b73f7b142fd3ee4a1e618850453917d73dcebeeabe142379126ce443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 38e69312c8adce08ea7dfb6cbae5c1550ca3be519904ce4a5487db8eea2b9a73
[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" "38e69312c8adce08ea7dfb6cbae5c1550ca3be519904ce4a5487db8eea2b9a73", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]     Checking flate2 v1.0.4
[INFO] [stderr]  Documenting rexpaint v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.73s
[INFO] running `Command { std: "docker" "inspect" "38e69312c8adce08ea7dfb6cbae5c1550ca3be519904ce4a5487db8eea2b9a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38e69312c8adce08ea7dfb6cbae5c1550ca3be519904ce4a5487db8eea2b9a73", kill_on_drop: false }`
[INFO] [stdout] 38e69312c8adce08ea7dfb6cbae5c1550ca3be519904ce4a5487db8eea2b9a73