[INFO] cloning repository https://github.com/whitfin/s3-meta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whitfin/s3-meta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitfin%2Fs3-meta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitfin%2Fs3-meta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be8faa8bee9d5ea938b89be88e6876b0f814a5f6
[INFO] documenting whitfin/s3-meta 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%2Fwhitfin%2Fs3-meta" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whitfin/s3-meta 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/whitfin/s3-meta
[INFO] finished tweaking git repo https://github.com/whitfin/s3-meta
[INFO] tweaked toml for git repo https://github.com/whitfin/s3-meta written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/whitfin/s3-meta 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 http v0.1.12
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.18
[INFO] [stderr]   Downloaded synstructure v0.9.0
[INFO] [stderr]   Downloaded failure_derive v0.1.2
[INFO] [stderr]   Downloaded failure v0.1.2
[INFO] [stderr]   Downloaded quick-xml v0.12.3
[INFO] [stderr]   Downloaded cc v1.0.24
[INFO] [stderr]   Downloaded rusoto_credential v0.13.0
[INFO] [stderr]   Downloaded serde v1.0.77
[INFO] [stderr]   Downloaded dirs v1.0.3
[INFO] [stderr]   Downloaded rusoto_core v0.34.0
[INFO] [stderr]   Downloaded rusoto_s3 v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 2708e9b266b962acd86f9ab45848f36eec8da8d2665bf3532797237caaf773e8
[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" "2708e9b266b962acd86f9ab45848f36eec8da8d2665bf3532797237caaf773e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2708e9b266b962acd86f9ab45848f36eec8da8d2665bf3532797237caaf773e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2708e9b266b962acd86f9ab45848f36eec8da8d2665bf3532797237caaf773e8", kill_on_drop: false }`
[INFO] [stdout] 2708e9b266b962acd86f9ab45848f36eec8da8d2665bf3532797237caaf773e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9099fd74610e86481161e96788f7fe92f75179d7f4478eac6a50e973fd6a841
[INFO] running `Command { std: "docker" "start" "-a" "a9099fd74610e86481161e96788f7fe92f75179d7f4478eac6a50e973fd6a841", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.24
[INFO] [stderr]    Compiling cc v1.0.24
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.18
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling openssl v0.10.11
[INFO] [stderr]    Compiling serde v1.0.77
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking dirs v1.0.3
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking base64 v0.9.2
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking http v0.1.12
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling rusoto_core v0.34.0
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking digest v0.7.5
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling openssl-sys v0.9.35
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking tokio-current-thread v0.1.1
[INFO] [stderr]     Checking tokio-timer v0.2.6
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking hyper v0.12.9
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking hyper-tls v0.3.0
[INFO] [stderr]     Checking rusoto_credential v0.13.0
[INFO] [stderr]     Checking quick-xml v0.12.3
[INFO] [stderr]     Checking rusoto_s3 v0.34.0
[INFO] [stderr]  Documenting s3-meta v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.72s
[INFO] running `Command { std: "docker" "inspect" "a9099fd74610e86481161e96788f7fe92f75179d7f4478eac6a50e973fd6a841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9099fd74610e86481161e96788f7fe92f75179d7f4478eac6a50e973fd6a841", kill_on_drop: false }`
[INFO] [stdout] a9099fd74610e86481161e96788f7fe92f75179d7f4478eac6a50e973fd6a841