[INFO] cloning repository https://github.com/int0x33/r3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/int0x33/r3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fint0x33%2Fr3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fint0x33%2Fr3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 620008f20bb8f32a1adedda606bbb6d3f9a4cf9d
[INFO] documenting int0x33/r3 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%2Fint0x33%2Fr3" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/int0x33/r3 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/int0x33/r3
[INFO] finished tweaking git repo https://github.com/int0x33/r3
[INFO] tweaked toml for git repo https://github.com/int0x33/r3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/int0x33/r3 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 encoding_rs v0.8.16
[INFO] [stderr]   Downloaded tempfile v3.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 152f29d1b6d3f9346c919910fc7066a86e54289e52c87792aa730cf900f05dc0
[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" "152f29d1b6d3f9346c919910fc7066a86e54289e52c87792aa730cf900f05dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "152f29d1b6d3f9346c919910fc7066a86e54289e52c87792aa730cf900f05dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152f29d1b6d3f9346c919910fc7066a86e54289e52c87792aa730cf900f05dc0", kill_on_drop: false }`
[INFO] [stdout] 152f29d1b6d3f9346c919910fc7066a86e54289e52c87792aa730cf900f05dc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 575834fb391835e6fb39d77e62ced7d6e6860502feca7230422d1a383b9f366a
[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" "575834fb391835e6fb39d77e62ced7d6e6860502feca7230422d1a383b9f366a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.8.16
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking bit-set v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking tendril v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-io v0.1.11
[INFO] [stderr]     Checking http v0.1.15
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking tokio-reactor v0.1.8
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.3.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.11
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.15
[INFO] [stderr]     Checking h2 v0.1.16
[INFO] [stderr]    Compiling html5ever v0.18.0
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]     Checking serde_urlencoded v0.5.4
[INFO] [stderr]     Checking hyper v0.12.24
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.9
[INFO] [stderr]     Checking select v0.4.2
[INFO] [stderr]  Documenting r3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.70s
[INFO] running `Command { std: "docker" "inspect" "575834fb391835e6fb39d77e62ced7d6e6860502feca7230422d1a383b9f366a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575834fb391835e6fb39d77e62ced7d6e6860502feca7230422d1a383b9f366a", kill_on_drop: false }`
[INFO] [stdout] 575834fb391835e6fb39d77e62ced7d6e6860502feca7230422d1a383b9f366a