[INFO] cloning repository https://github.com/kompass/huge-json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kompass/huge-json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkompass%2Fhuge-json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkompass%2Fhuge-json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75b3cd147c4e5d6cc9da913b982f18238ba6686d
[INFO] documenting kompass/huge-json 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%2Fkompass%2Fhuge-json" "/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/kompass/huge-json 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/kompass/huge-json
[INFO] finished tweaking git repo https://github.com/kompass/huge-json
[INFO] tweaked toml for git repo https://github.com/kompass/huge-json written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kompass/huge-json 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 once_cell v0.2.4
[INFO] [stderr]   Downloaded combine-elastic-buffered-stream v0.1.0
[INFO] [stderr]   Downloaded ascii v0.9.3
[INFO] [stderr]   Downloaded unicode_reader v1.0.0
[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] 21182bec42f5bb9282fdb0a3bc79af4a094cc835d6fcb479cbe062d17d4849d6
[INFO] running `Command { std: "docker" "start" "-a" "21182bec42f5bb9282fdb0a3bc79af4a094cc835d6fcb479cbe062d17d4849d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21182bec42f5bb9282fdb0a3bc79af4a094cc835d6fcb479cbe062d17d4849d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21182bec42f5bb9282fdb0a3bc79af4a094cc835d6fcb479cbe062d17d4849d6", kill_on_drop: false }`
[INFO] [stdout] 21182bec42f5bb9282fdb0a3bc79af4a094cc835d6fcb479cbe062d17d4849d6
[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] 687a35cfe992820a7fdeae5e2734026892c31d1a3ad8df8522852bad861ed5cc
[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" "687a35cfe992820a7fdeae5e2734026892c31d1a3ad8df8522852bad861ed5cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking unicode_reader v1.0.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking once_cell v0.2.4
[INFO] [stderr]     Checking lexical-core v0.6.2
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]     Checking lexical v4.0.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling structopt-derive v0.3.2
[INFO] [stderr]     Checking exitfailure v0.5.1
[INFO] [stderr]     Checking combine-elastic-buffered-stream v0.1.0
[INFO] [stderr]     Checking structopt v0.3.2
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]  Documenting sjq v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "687a35cfe992820a7fdeae5e2734026892c31d1a3ad8df8522852bad861ed5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "687a35cfe992820a7fdeae5e2734026892c31d1a3ad8df8522852bad861ed5cc", kill_on_drop: false }`
[INFO] [stdout] 687a35cfe992820a7fdeae5e2734026892c31d1a3ad8df8522852bad861ed5cc