[INFO] fetching crate font_metrics 0.0.4...
[INFO] documenting font_metrics-0.0.4 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate font_metrics 0.0.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate font_metrics 0.0.4 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 font_metrics 0.0.4
[INFO] finished tweaking crates.io crate font_metrics 0.0.4
[INFO] tweaked toml for crates.io crate font_metrics 0.0.4 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 flate2 v0.2.20
[INFO] [stderr]   Downloaded heapsize v0.4.2
[INFO] [stderr]   Downloaded euclid v0.15.6
[INFO] [stderr]   Downloaded adobe-cmap-parser v0.3.3
[INFO] [stderr]   Downloaded type1-encoding-parser v0.1.0
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded rusttype v0.6.5
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded pdf-extract v0.4.6
[INFO] [stderr]   Downloaded postscript v0.11.1
[INFO] [stderr]   Downloaded pom v1.1.0
[INFO] [stderr]   Downloaded lopdf v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] fac17d52473e09957e9ce7cd2093e5be031008c7c3f1a68976e80d785daa4c82
[INFO] running `Command { std: "docker" "start" "-a" "fac17d52473e09957e9ce7cd2093e5be031008c7c3f1a68976e80d785daa4c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fac17d52473e09957e9ce7cd2093e5be031008c7c3f1a68976e80d785daa4c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fac17d52473e09957e9ce7cd2093e5be031008c7c3f1a68976e80d785daa4c82", kill_on_drop: false }`
[INFO] [stdout] fac17d52473e09957e9ce7cd2093e5be031008c7c3f1a68976e80d785daa4c82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 17512b8b4c822ecd04bb017cd9963c37020351d0e5bfd81747b714a7c64607da
[INFO] running `Command { std: "docker" "start" "-a" "17512b8b4c822ecd04bb017cd9963c37020351d0e5bfd81747b714a7c64607da", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking pom v1.1.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking postscript v0.11.1
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking type1-encoding-parser v0.1.0
[INFO] [stderr]     Checking adobe-cmap-parser v0.3.3
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking euclid v0.15.6
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking rusttype v0.6.5
[INFO] [stderr]     Checking lopdf v0.15.3
[INFO] [stderr]     Checking pdf-extract v0.4.6
[INFO] [stderr]     Checking font_metrics v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting font_metrics v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.63s
[INFO] running `Command { std: "docker" "inspect" "17512b8b4c822ecd04bb017cd9963c37020351d0e5bfd81747b714a7c64607da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17512b8b4c822ecd04bb017cd9963c37020351d0e5bfd81747b714a7c64607da", kill_on_drop: false }`
[INFO] [stdout] 17512b8b4c822ecd04bb017cd9963c37020351d0e5bfd81747b714a7c64607da