[INFO] fetching crate elba 0.3.0...
[INFO] documenting elba-0.3.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate elba 0.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate elba 0.3.0 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 elba 0.3.0
[INFO] finished tweaking crates.io crate elba 0.3.0
[INFO] tweaked toml for crates.io crate elba 0.3.0 written to /workspace/builds/worker-5/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 parking_lot v0.6.4
[INFO] [stderr]   Downloaded crossbeam v0.4.1
[INFO] [stderr]   Downloaded console v0.6.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.5.2
[INFO] [stderr]   Downloaded fwdansi v1.1.0
[INFO] [stderr]   Downloaded slog-term v2.6.0
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded clicolors-control v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.6.1
[INFO] [stderr]   Downloaded symlink v0.1.0
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded config v0.9.3
[INFO] [stderr]   Downloaded shell-escape v0.1.5
[INFO] [stderr]   Downloaded serde-hjson v0.8.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.5.2
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded slog-async v2.5.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.6
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded semver_constraints v0.1.0
[INFO] [stderr]   Downloaded url_serde v0.2.0
[INFO] [stderr]   Downloaded simsearch v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] df19af877d7d0e992ea7aff2846d3a565050d8aaae845ca95463c44d07d47875
[INFO] running `Command { std: "docker" "start" "-a" "df19af877d7d0e992ea7aff2846d3a565050d8aaae845ca95463c44d07d47875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df19af877d7d0e992ea7aff2846d3a565050d8aaae845ca95463c44d07d47875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df19af877d7d0e992ea7aff2846d3a565050d8aaae845ca95463c44d07d47875", kill_on_drop: false }`
[INFO] [stdout] df19af877d7d0e992ea7aff2846d3a565050d8aaae845ca95463c44d07d47875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] fc28ada5edd2eec0e37fa2c853a0c78a7976f47b6605009a648d1e074ad854fd
[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" "fc28ada5edd2eec0e37fa2c853a0c78a7976f47b6605009a648d1e074ad854fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]     Checking symlink v0.1.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling curl-sys v0.4.36+curl-7.71.1
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking simsearch v0.1.4
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking console v0.6.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking indexmap v1.5.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking semver_constraints v0.1.0
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking slog-term v2.6.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking toml_edit v0.1.5
[INFO] [stderr]     Checking git2 v0.7.5
[INFO] [stderr]  Documenting elba v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "fc28ada5edd2eec0e37fa2c853a0c78a7976f47b6605009a648d1e074ad854fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc28ada5edd2eec0e37fa2c853a0c78a7976f47b6605009a648d1e074ad854fd", kill_on_drop: false }`
[INFO] [stdout] fc28ada5edd2eec0e37fa2c853a0c78a7976f47b6605009a648d1e074ad854fd