[INFO] fetching crate plotchart 0.2.12...
[INFO] documenting plotchart-0.2.12 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate plotchart 0.2.12 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate plotchart 0.2.12 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking crates.io crate plotchart 0.2.12
[INFO] finished tweaking crates.io crate plotchart 0.2.12
[INFO] tweaked toml for crates.io crate plotchart 0.2.12 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate plotchart 0.2.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0236253452edb1e5cc601a69c36f229d113ed2ddf1c4903d9cc21c19a5a1efbc
[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" "0236253452edb1e5cc601a69c36f229d113ed2ddf1c4903d9cc21c19a5a1efbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0236253452edb1e5cc601a69c36f229d113ed2ddf1c4903d9cc21c19a5a1efbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0236253452edb1e5cc601a69c36f229d113ed2ddf1c4903d9cc21c19a5a1efbc", kill_on_drop: false }`
[INFO] [stdout] 0236253452edb1e5cc601a69c36f229d113ed2ddf1c4903d9cc21c19a5a1efbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dba83adc956ca5341ee7f5d3eea920158f870c425f7b1d8fd684a8ea0e7774b
[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" "1dba83adc956ca5341ee7f5d3eea920158f870c425f7b1d8fd684a8ea0e7774b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking euclid v0.20.10
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.5.0
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]  Documenting plotchart v0.2.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.86s
[INFO] running `Command { std: "docker" "inspect" "1dba83adc956ca5341ee7f5d3eea920158f870c425f7b1d8fd684a8ea0e7774b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dba83adc956ca5341ee7f5d3eea920158f870c425f7b1d8fd684a8ea0e7774b", kill_on_drop: false }`
[INFO] [stdout] 1dba83adc956ca5341ee7f5d3eea920158f870c425f7b1d8fd684a8ea0e7774b