[INFO] cloning repository https://github.com/hobofan/fu-vv-cal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hobofan/fu-vv-cal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobofan%2Ffu-vv-cal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhobofan%2Ffu-vv-cal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40b853c758bba6f255bb90abd4895cfaae69971d
[INFO] documenting hobofan/fu-vv-cal 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%2Fhobofan%2Ffu-vv-cal" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hobofan/fu-vv-cal 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/hobofan/fu-vv-cal
[INFO] finished tweaking git repo https://github.com/hobofan/fu-vv-cal
[INFO] tweaked toml for git repo https://github.com/hobofan/fu-vv-cal written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/hobofan/fu-vv-cal 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 tracing-core v0.1.6
[INFO] [stderr]   Downloaded tokio-codec v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-net v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-io v0.2.0-alpha.4
[INFO] [stderr]   Downloaded pin-project-internal v0.4.0-alpha.7
[INFO] [stderr]   Downloaded http-body v0.2.0-alpha.1
[INFO] [stderr]   Downloaded tokio-macros v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-sync v0.2.0-alpha.4
[INFO] [stderr]   Downloaded h2 v0.2.0-alpha.1
[INFO] [stderr]   Downloaded tower-make v0.1.0-alpha.2
[INFO] [stderr]   Downloaded tokio-executor v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-timer v0.3.0-alpha.4
[INFO] [stderr]   Downloaded tokio v0.2.0-alpha.4
[INFO] [stderr]   Downloaded tokio-tls v0.3.0-alpha.4
[INFO] [stderr]   Downloaded tracing-attributes v0.1.3
[INFO] [stderr]   Downloaded tokio-fs v0.2.0-alpha.4
[INFO] [stderr]   Downloaded timespan v0.1.0
[INFO] [stderr]   Downloaded tracing v0.1.9
[INFO] [stderr]   Downloaded tower-service v0.3.0-alpha.1
[INFO] [stderr]   Downloaded ics v0.4.1
[INFO] [stderr]   Downloaded pin-project v0.4.0-alpha.7
[INFO] [stderr]   Downloaded hyper-tls v0.4.0-alpha.1
[INFO] [stderr]   Downloaded hyper v0.13.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f0363219a107187d1e3787c0090ee3a0839f90f24ac0331495f9ad2db1ab402b
[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" "f0363219a107187d1e3787c0090ee3a0839f90f24ac0331495f9ad2db1ab402b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0363219a107187d1e3787c0090ee3a0839f90f24ac0331495f9ad2db1ab402b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0363219a107187d1e3787c0090ee3a0839f90f24ac0331495f9ad2db1ab402b", kill_on_drop: false }`
[INFO] [stdout] f0363219a107187d1e3787c0090ee3a0839f90f24ac0331495f9ad2db1ab402b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d3418a9016e1db93bc691be79bd90abf06d186f3a4adeae0ed4eb10a96991054
[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" "d3418a9016e1db93bc691be79bd90abf06d186f3a4adeae0ed4eb10a96991054", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking indexmap v1.2.0
[INFO] [stderr]     Checking tower-service v0.3.0-alpha.1
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]     Checking ics v0.4.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking tracing-core v0.1.6
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.0-alpha.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.4
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.4
[INFO] [stderr]     Checking tower-make v0.1.0-alpha.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.4
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking http-body v0.2.0-alpha.1
[INFO] [stderr]     Checking timespan v0.1.0
[INFO] [stderr]     Checking h2 v0.2.0-alpha.1
[INFO] [stderr]    Compiling parse-zoneinfo v0.2.0
[INFO] [stderr]     Checking tokio-tls v0.3.0-alpha.4
[INFO] [stderr]    Compiling chrono-tz v0.5.1
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling tokio-macros v0.2.0-alpha.4
[INFO] [stderr]     Checking tracing v0.1.9
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.4
[INFO] [stderr]     Checking pin-project v0.4.0-alpha.7
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.4
[INFO] [stderr]     Checking tokio-timer v0.3.0-alpha.4
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.4
[INFO] [stderr]     Checking tokio v0.2.0-alpha.4
[INFO] [stderr]     Checking hyper v0.13.0-alpha.1
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]     Checking hyper-tls v0.4.0-alpha.1
[INFO] [stderr]     Checking select v0.4.3
[INFO] [stderr]  Documenting fu-vv-cal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "d3418a9016e1db93bc691be79bd90abf06d186f3a4adeae0ed4eb10a96991054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3418a9016e1db93bc691be79bd90abf06d186f3a4adeae0ed4eb10a96991054", kill_on_drop: false }`
[INFO] [stdout] d3418a9016e1db93bc691be79bd90abf06d186f3a4adeae0ed4eb10a96991054