[INFO] fetching crate erbium 0.1.0...
[INFO] documenting erbium-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate erbium 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate erbium 0.1.0 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 erbium 0.1.0
[INFO] finished tweaking crates.io crate erbium 0.1.0
[INFO] tweaked toml for crates.io crate erbium 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate erbium 0.1.0 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 rusqlite v0.23.1
[INFO] [stderr]   Downloaded fallible-streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded event-listener v2.3.0
[INFO] [stderr]   Downloaded smol v0.1.18
[INFO] [stderr]   Downloaded async-channel v1.4.0
[INFO] [stderr]   Downloaded waker-fn v1.0.0
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] [stderr]   Downloaded async-std v1.6.2
[INFO] [stderr]   Downloaded nix v0.18.0
[INFO] [stderr]   Downloaded futures-lite v0.1.10
[INFO] [stderr]   Downloaded netlink-packet-utils v0.2.0
[INFO] [stderr]   Downloaded blocking v0.4.7
[INFO] [stderr]   Downloaded concurrent-queue v1.2.0
[INFO] [stderr]   Downloaded fastrand v1.3.3
[INFO] [stderr]   Downloaded netlink-packet-route v0.3.0
[INFO] [stderr]   Downloaded fallible-iterator v0.2.0
[INFO] [stderr]   Downloaded netlink-packet-core v0.2.0
[INFO] [stderr]   Downloaded netlink-sys v0.3.0
[INFO] [stderr]   Downloaded smallvec v1.4.1
[INFO] [stderr]   Downloaded libsqlite3-sys v0.18.0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ead4202f94ba645a3c0370588de4b7ee8b8b1688d07c5b10e4cbb066d693b582
[INFO] running `Command { std: "docker" "start" "-a" "ead4202f94ba645a3c0370588de4b7ee8b8b1688d07c5b10e4cbb066d693b582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ead4202f94ba645a3c0370588de4b7ee8b8b1688d07c5b10e4cbb066d693b582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead4202f94ba645a3c0370588de4b7ee8b8b1688d07c5b10e4cbb066d693b582", kill_on_drop: false }`
[INFO] [stdout] ead4202f94ba645a3c0370588de4b7ee8b8b1688d07c5b10e4cbb066d693b582
[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] 7b588b97470d13a80bce0265516a6b0e1bc3713da3d573d7c83b30ceb12269fc
[INFO] running `Command { std: "docker" "start" "-a" "7b588b97470d13a80bce0265516a6b0e1bc3713da3d573d7c83b30ceb12269fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking event-listener v2.3.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking parking v1.0.6
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]     Checking concurrent-queue v1.2.0
[INFO] [stderr]     Checking futures-lite v0.1.10
[INFO] [stderr]     Checking async-channel v1.4.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rusqlite v0.23.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking netlink-packet-utils v0.2.0
[INFO] [stderr]     Checking netlink-packet-core v0.2.0
[INFO] [stderr]     Checking netlink-packet-route v0.3.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking smol v0.1.18
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking netlink-sys v0.3.0
[INFO] [stderr]     Checking async-std v1.6.2
[INFO] [stderr]     Checking erbium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting erbium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.39s
[INFO] running `Command { std: "docker" "inspect" "7b588b97470d13a80bce0265516a6b0e1bc3713da3d573d7c83b30ceb12269fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b588b97470d13a80bce0265516a6b0e1bc3713da3d573d7c83b30ceb12269fc", kill_on_drop: false }`
[INFO] [stdout] 7b588b97470d13a80bce0265516a6b0e1bc3713da3d573d7c83b30ceb12269fc