[INFO] cloning repository https://github.com/knisht/wtfis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/knisht/wtfis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknisht%2Fwtfis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknisht%2Fwtfis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58cda23dd039e357dabdb92b43b64686b9902cd9
[INFO] documenting knisht/wtfis 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%2Fknisht%2Fwtfis" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/knisht/wtfis 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] started tweaking git repo https://github.com/knisht/wtfis
[INFO] finished tweaking git repo https://github.com/knisht/wtfis
[INFO] tweaked toml for git repo https://github.com/knisht/wtfis written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/knisht/wtfis 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b60a7abf34669d0773811dd1149997f7a78f36fda24360ab8562c42b6fc4ebba
[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" "b60a7abf34669d0773811dd1149997f7a78f36fda24360ab8562c42b6fc4ebba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b60a7abf34669d0773811dd1149997f7a78f36fda24360ab8562c42b6fc4ebba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b60a7abf34669d0773811dd1149997f7a78f36fda24360ab8562c42b6fc4ebba", kill_on_drop: false }`
[INFO] [stdout] b60a7abf34669d0773811dd1149997f7a78f36fda24360ab8562c42b6fc4ebba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2318086540afbe36ea8e9cf9b298d7ab6125cd0b61e61b505ec25543cde3d52f
[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" "2318086540afbe36ea8e9cf9b298d7ab6125cd0b61e61b505ec25543cde3d52f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling openssl v0.10.12
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling syn v0.15.8
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking hyper-native-tls v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling html5ever v0.22.3
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]  Documenting wtfis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.12s
[INFO] running `Command { std: "docker" "inspect" "2318086540afbe36ea8e9cf9b298d7ab6125cd0b61e61b505ec25543cde3d52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2318086540afbe36ea8e9cf9b298d7ab6125cd0b61e61b505ec25543cde3d52f", kill_on_drop: false }`
[INFO] [stdout] 2318086540afbe36ea8e9cf9b298d7ab6125cd0b61e61b505ec25543cde3d52f