[INFO] fetching crate metrics_distributor 0.5.3...
[INFO] documenting metrics_distributor-0.5.3 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate metrics_distributor 0.5.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate metrics_distributor 0.5.3 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 metrics_distributor 0.5.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metrics_distributor 0.5.3
[INFO] tweaked toml for crates.io crate metrics_distributor 0.5.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate metrics_distributor 0.5.3 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stdout] e601b574c960f4d42d348e1d0d589b94574ad529763ebcce903a374c342f5ec1
[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" "e601b574c960f4d42d348e1d0d589b94574ad529763ebcce903a374c342f5ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e601b574c960f4d42d348e1d0d589b94574ad529763ebcce903a374c342f5ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e601b574c960f4d42d348e1d0d589b94574ad529763ebcce903a374c342f5ec1", kill_on_drop: false }`
[INFO] [stdout] e601b574c960f4d42d348e1d0d589b94574ad529763ebcce903a374c342f5ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 3206a7f232a9aee0571634ed74705fee5a94d7dbb7b21b448084b80ffc717d6e
[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" "3206a7f232a9aee0571634ed74705fee5a94d7dbb7b21b448084b80ffc717d6e", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking openssl-sys v0.9.55
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking openssl v0.10.29
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking router v0.6.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]     Checking pin-project v0.4.9
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.4
[INFO] [stderr]  Documenting metrics_distributor v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.33s
[INFO] running `Command { std: "docker" "inspect" "3206a7f232a9aee0571634ed74705fee5a94d7dbb7b21b448084b80ffc717d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3206a7f232a9aee0571634ed74705fee5a94d7dbb7b21b448084b80ffc717d6e", kill_on_drop: false }`
[INFO] [stdout] 3206a7f232a9aee0571634ed74705fee5a94d7dbb7b21b448084b80ffc717d6e