[INFO] cloning repository https://github.com/lfdominguez/openvpn-access-exporter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lfdominguez/openvpn-access-exporter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfdominguez%2Fopenvpn-access-exporter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfdominguez%2Fopenvpn-access-exporter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e4d99dd29c05650e2e7a39190cf836ac63ac011
[INFO] documenting lfdominguez/openvpn-access-exporter against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flfdominguez%2Fopenvpn-access-exporter" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lfdominguez/openvpn-access-exporter on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking git repo https://github.com/lfdominguez/openvpn-access-exporter
[INFO] finished tweaking git repo https://github.com/lfdominguez/openvpn-access-exporter
[INFO] tweaked toml for git repo https://github.com/lfdominguez/openvpn-access-exporter written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lfdominguez/openvpn-access-exporter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b3f01a8352d637dd85430f0f2e2013c19ece0817212fe9ea5e501b7bef5a335
[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" "6b3f01a8352d637dd85430f0f2e2013c19ece0817212fe9ea5e501b7bef5a335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3f01a8352d637dd85430f0f2e2013c19ece0817212fe9ea5e501b7bef5a335", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3f01a8352d637dd85430f0f2e2013c19ece0817212fe9ea5e501b7bef5a335", kill_on_drop: false }`
[INFO] [stdout] 6b3f01a8352d637dd85430f0f2e2013c19ece0817212fe9ea5e501b7bef5a335
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b41ebb9c583558444cd11a8bf098ee96d7efceeeaa6663c5ec1634b8e54643da
[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" "b41ebb9c583558444cd11a8bf098ee96d7efceeeaa6663c5ec1634b8e54643da", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.6.0
[INFO] [stderr]    Compiling prometheus v0.7.0 (https://github.com/lfdominguez/rust-prometheus.git#7b7de5ba)
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]    Compiling sqlite3-src v0.2.11
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking mio v0.6.17
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking h2 v0.1.20
[INFO] [stderr]     Checking sqlite3-sys v0.12.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking sqlite v0.24.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio v0.1.20
[INFO] [stderr]  Documenting openvpn-access-exporter v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.24s
[INFO] running `Command { std: "docker" "inspect" "b41ebb9c583558444cd11a8bf098ee96d7efceeeaa6663c5ec1634b8e54643da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b41ebb9c583558444cd11a8bf098ee96d7efceeeaa6663c5ec1634b8e54643da", kill_on_drop: false }`
[INFO] [stdout] b41ebb9c583558444cd11a8bf098ee96d7efceeeaa6663c5ec1634b8e54643da