[INFO] cloning repository https://github.com/bobtwinkles/msdfgen-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bobtwinkles/msdfgen-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobtwinkles%2Fmsdfgen-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobtwinkles%2Fmsdfgen-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 222dd13f06421e44da5ec12b146c59daa1c87915
[INFO] documenting bobtwinkles/msdfgen-rs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobtwinkles%2Fmsdfgen-rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bobtwinkles/msdfgen-rs 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 git repo https://github.com/bobtwinkles/msdfgen-rs
[INFO] finished tweaking git repo https://github.com/bobtwinkles/msdfgen-rs
[INFO] tweaked toml for git repo https://github.com/bobtwinkles/msdfgen-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/bobtwinkles/msdfgen-rs 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]  Downloading crates ...
[INFO] [stderr]   Downloaded euclid v0.19.2
[INFO] [stderr]   Downloaded core-text v13.1.1
[INFO] [stderr]   Downloaded walkdir v2.2.6
[INFO] [stderr]   Downloaded gleam v0.6.4
[INFO] [stderr]   Downloaded lyon_geom v0.12.2
[INFO] [stderr]   Downloaded servo-freetype-sys v4.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] d82789a926c45b564f159b2d73e32741c0e68bb11b2fdfde8fc91f57baf29f67
[INFO] running `Command { std: "docker" "start" "-a" "d82789a926c45b564f159b2d73e32741c0e68bb11b2fdfde8fc91f57baf29f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d82789a926c45b564f159b2d73e32741c0e68bb11b2fdfde8fc91f57baf29f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d82789a926c45b564f159b2d73e32741c0e68bb11b2fdfde8fc91f57baf29f67", kill_on_drop: false }`
[INFO] [stdout] d82789a926c45b564f159b2d73e32741c0e68bb11b2fdfde8fc91f57baf29f67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 16e4b2236618dcb03ab4784322668fee0782ff6142164c91110ae209eb2a6a0d
[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" "16e4b2236618dcb03ab4784322668fee0782ff6142164c91110ae209eb2a6a0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking walkdir v2.2.6
[INFO] [stderr]     Checking euclid v0.19.2
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.3
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking lyon_geom v0.12.2
[INFO] [stderr]     Checking lyon_path v0.12.0
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking font-kit v0.1.0
[INFO] [stderr]  Documenting msdfgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.34s
[INFO] running `Command { std: "docker" "inspect" "16e4b2236618dcb03ab4784322668fee0782ff6142164c91110ae209eb2a6a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e4b2236618dcb03ab4784322668fee0782ff6142164c91110ae209eb2a6a0d", kill_on_drop: false }`
[INFO] [stdout] 16e4b2236618dcb03ab4784322668fee0782ff6142164c91110ae209eb2a6a0d