[INFO] fetching crate plotters-unstable 0.2.1...
[INFO] documenting plotters-unstable-0.2.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate plotters-unstable 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate plotters-unstable 0.2.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate plotters-unstable 0.2.1
[INFO] finished tweaking crates.io crate plotters-unstable 0.2.1
[INFO] tweaked toml for crates.io crate plotters-unstable 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate plotters-unstable 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1d5e3854cf53589a6af6bf12e7d16ca55bc4ba6c42f1d0b0b02569bc065f3a2
[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" "b1d5e3854cf53589a6af6bf12e7d16ca55bc4ba6c42f1d0b0b02569bc065f3a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1d5e3854cf53589a6af6bf12e7d16ca55bc4ba6c42f1d0b0b02569bc065f3a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d5e3854cf53589a6af6bf12e7d16ca55bc4ba6c42f1d0b0b02569bc065f3a2", kill_on_drop: false }`
[INFO] [stdout] b1d5e3854cf53589a6af6bf12e7d16ca55bc4ba6c42f1d0b0b02569bc065f3a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59c441e3d1edce57ecf402ca2fe124389b2ddc324409c7de8d3b588dfd9334ef
[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" "59c441e3d1edce57ecf402ca2fe124389b2ddc324409c7de8d3b588dfd9334ef", kill_on_drop: false }`
[INFO] [stderr]     Checking plotters-backend v0.2.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking plotters-svg v0.2.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking image v0.23.8
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking font-kit v0.7.1
[INFO] [stderr]     Checking plotters-bitmap v0.2.0
[INFO] [stderr]  Documenting plotters-unstable v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.60s
[INFO] running `Command { std: "docker" "inspect" "59c441e3d1edce57ecf402ca2fe124389b2ddc324409c7de8d3b588dfd9334ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c441e3d1edce57ecf402ca2fe124389b2ddc324409c7de8d3b588dfd9334ef", kill_on_drop: false }`
[INFO] [stdout] 59c441e3d1edce57ecf402ca2fe124389b2ddc324409c7de8d3b588dfd9334ef
