[INFO] cloning repository https://github.com/sangheestyle/rust_webserver_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sangheestyle/rust_webserver_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsangheestyle%2Frust_webserver_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsangheestyle%2Frust_webserver_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6f8a0d46a964d48e86e7ef4f55ae314d5903b0e
[INFO] documenting sangheestyle/rust_webserver_example 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%2Fsangheestyle%2Frust_webserver_example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sangheestyle/rust_webserver_example 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/sangheestyle/rust_webserver_example
[INFO] finished tweaking git repo https://github.com/sangheestyle/rust_webserver_example
[INFO] tweaked toml for git repo https://github.com/sangheestyle/rust_webserver_example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sangheestyle/rust_webserver_example 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 968e9253788cfec3eff69abc2ea1afa88951a993c23fd3f046caf06bd5ab63ec
[INFO] running `Command { std: "docker" "start" "-a" "968e9253788cfec3eff69abc2ea1afa88951a993c23fd3f046caf06bd5ab63ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "968e9253788cfec3eff69abc2ea1afa88951a993c23fd3f046caf06bd5ab63ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "968e9253788cfec3eff69abc2ea1afa88951a993c23fd3f046caf06bd5ab63ec", kill_on_drop: false }`
[INFO] [stdout] 968e9253788cfec3eff69abc2ea1afa88951a993c23fd3f046caf06bd5ab63ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ae550814f1619a90008e6888869192d860329c209e4cd54ad65739823bd100fb
[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" "ae550814f1619a90008e6888869192d860329c209e4cd54ad65739823bd100fb", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling ryu v1.0.1
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]     Checking tokio-sync v0.1.7
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking serde_qs v0.5.0
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking http-service v0.3.1
[INFO] [stderr]     Checking tide-core v0.2.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-querystring v0.1.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-cors v0.2.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-cookies v0.2.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-forms v0.1.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-headers v0.1.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking tide-log v0.1.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]     Checking http-service-hyper v0.3.1
[INFO] [stderr]     Checking tide v0.2.0 (https://github.com/rustasync/tide?branch=master#8281f384)
[INFO] [stderr]  Documenting rust_webserver_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.38s
[INFO] running `Command { std: "docker" "inspect" "ae550814f1619a90008e6888869192d860329c209e4cd54ad65739823bd100fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae550814f1619a90008e6888869192d860329c209e4cd54ad65739823bd100fb", kill_on_drop: false }`
[INFO] [stdout] ae550814f1619a90008e6888869192d860329c209e4cd54ad65739823bd100fb