[INFO] fetching crate micro-kit 1.3.0...
[INFO] documenting micro-kit-1.3.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate micro-kit 1.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate micro-kit 1.3.0 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 crates.io crate micro-kit 1.3.0
[INFO] finished tweaking crates.io crate micro-kit 1.3.0
[INFO] tweaked toml for crates.io crate micro-kit 1.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 serde-value v0.3.1
[INFO] [stderr]   Downloaded ordered-float v0.2.3
[INFO] [stderr]   Downloaded serde_yaml v0.5.1
[INFO] [stderr]   Downloaded metrics v0.2.3
[INFO] [stderr]   Downloaded log4rs v0.5.2
[INFO] [stderr]   Downloaded dtoa v0.3.1
[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] [stdout] d3db9648d3a1bf4f680d17dbd6d51719882aee0eb8f188ce8384afbf8e97be51
[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" "d3db9648d3a1bf4f680d17dbd6d51719882aee0eb8f188ce8384afbf8e97be51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3db9648d3a1bf4f680d17dbd6d51719882aee0eb8f188ce8384afbf8e97be51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3db9648d3a1bf4f680d17dbd6d51719882aee0eb8f188ce8384afbf8e97be51", kill_on_drop: false }`
[INFO] [stdout] d3db9648d3a1bf4f680d17dbd6d51719882aee0eb8f188ce8384afbf8e97be51
[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] 70b66f143e550c036095f2f0730e8def11ab5afa7ba108bb0f9321c94d88f283
[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" "70b66f143e550c036095f2f0730e8def11ab5afa7ba108bb0f9321c94d88f283", kill_on_drop: false }`
[INFO] [stderr]     Checking dtoa v0.3.1
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking histogram v0.6.9
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking ordered-float v0.2.3
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking metrics v0.2.3
[INFO] [stderr]     Checking serde-value v0.3.1
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking serde_yaml v0.5.1
[INFO] [stderr]     Checking log4rs v0.5.2
[INFO] [stderr]  Documenting micro-kit v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `Command { std: "docker" "inspect" "70b66f143e550c036095f2f0730e8def11ab5afa7ba108bb0f9321c94d88f283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70b66f143e550c036095f2f0730e8def11ab5afa7ba108bb0f9321c94d88f283", kill_on_drop: false }`
[INFO] [stdout] 70b66f143e550c036095f2f0730e8def11ab5afa7ba108bb0f9321c94d88f283