[INFO] fetching crate rvg 0.1.0...
[INFO] documenting rvg-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate rvg 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rvg 0.1.0 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 rvg 0.1.0
[INFO] finished tweaking crates.io crate rvg 0.1.0
[INFO] tweaked toml for crates.io crate rvg 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rvg 0.1.0 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 simplecss v0.2.0
[INFO] [stderr]   Downloaded svgtypes v0.5.0
[INFO] [stderr]   Downloaded xmlwriter v0.1.0
[INFO] [stderr]   Downloaded unicode-script v0.5.2
[INFO] [stderr]   Downloaded memmap2 v0.1.0
[INFO] [stderr]   Downloaded roxmltree v0.11.0
[INFO] [stderr]   Downloaded harfbuzz_rs v1.1.1
[INFO] [stderr]   Downloaded rctree v0.3.3
[INFO] [stderr]   Downloaded data-url v0.1.0
[INFO] [stderr]   Downloaded ttf-parser v0.6.1
[INFO] [stderr]   Downloaded usvg v0.9.1
[INFO] [stderr]   Downloaded unicode-vo v0.1.0
[INFO] [stderr]   Downloaded freetype v0.5.1
[INFO] [stderr]   Downloaded ruzstd v0.2.1
[INFO] [stderr]   Downloaded harfbuzz-sys v0.4.0
[INFO] [stderr]   Downloaded footile v0.5.0
[INFO] [stderr]   Downloaded freetype-sys v0.11.0
[INFO] [stderr]   Downloaded png_pong v0.5.0
[INFO] [stderr]   Downloaded xmlparser v0.13.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1599764f08cb875159fc136557c087d859a9a1134fe81db2721499b210c830f5
[INFO] running `Command { std: "docker" "start" "-a" "1599764f08cb875159fc136557c087d859a9a1134fe81db2721499b210c830f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1599764f08cb875159fc136557c087d859a9a1134fe81db2721499b210c830f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1599764f08cb875159fc136557c087d859a9a1134fe81db2721499b210c830f5", kill_on_drop: false }`
[INFO] [stdout] 1599764f08cb875159fc136557c087d859a9a1134fe81db2721499b210c830f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 093b5c9ab64f57c927130a5b37fa561d656ac353b9a750014d1eac6a0dd148aa
[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" "093b5c9ab64f57c927130a5b37fa561d656ac353b9a750014d1eac6a0dd148aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling pix v0.13.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling zstd-sys v1.4.17+zstd.1.4.5
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking ruzstd v0.2.1
[INFO] [stderr]     Checking zstd-safe v2.0.5+zstd.1.4.5
[INFO] [stderr]     Checking zstd v0.5.3+zstd.1.4.5
[INFO] [stderr]  Documenting rvg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "093b5c9ab64f57c927130a5b37fa561d656ac353b9a750014d1eac6a0dd148aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "093b5c9ab64f57c927130a5b37fa561d656ac353b9a750014d1eac6a0dd148aa", kill_on_drop: false }`
[INFO] [stdout] 093b5c9ab64f57c927130a5b37fa561d656ac353b9a750014d1eac6a0dd148aa