[INFO] cloning repository https://github.com/nero-services/nero
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nero-services/nero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnero-services%2Fnero", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnero-services%2Fnero'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f521b1759f83c583937f02cfde3602dfad3cca44
[INFO] documenting nero-services/nero 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%2Fnero-services%2Fnero" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nero-services/nero 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/nero-services/nero
[INFO] finished tweaking git repo https://github.com/nero-services/nero
[INFO] tweaked toml for git repo https://github.com/nero-services/nero written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nero-services/nero 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 serde_derive v1.0.15
[INFO] [stderr]   Downloaded libloading v0.4.2
[INFO] [stderr]   Downloaded serde v1.0.15
[INFO] [stderr]   Downloaded libc v0.2.31
[INFO] [stderr]   Downloaded futures v0.1.16
[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] 2cb9232e702fe45adf8fefa95ef067c8970d6bd56aa9831dd81ae415679cf5d7
[INFO] running `Command { std: "docker" "start" "-a" "2cb9232e702fe45adf8fefa95ef067c8970d6bd56aa9831dd81ae415679cf5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cb9232e702fe45adf8fefa95ef067c8970d6bd56aa9831dd81ae415679cf5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cb9232e702fe45adf8fefa95ef067c8970d6bd56aa9831dd81ae415679cf5d7", kill_on_drop: false }`
[INFO] [stdout] 2cb9232e702fe45adf8fefa95ef067c8970d6bd56aa9831dd81ae415679cf5d7
[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] [stdout] 6df893a61f6d96667a21073722d85917226c0dae64a2cc5c63bf27fb6fb6a39e
[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" "6df893a61f6d96667a21073722d85917226c0dae64a2cc5c63bf27fb6fb6a39e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.31
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling libloading v0.4.2
[INFO] [stderr]     Checking futures v0.1.16
[INFO] [stderr]     Checking lazycell v0.5.1
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking mio v0.6.10
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]     Checking tokio-core v0.1.9
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]  Documenting nero v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/p10.rs:612:30
[INFO] [stdout]     |
[INFO] [stdout] 612 |                         b'0' ... b'9' => oplevel = 999, // TODO: Parse this
[INFO] [stdout]     |                              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/p10.rs:648:22
[INFO] [stdout]     |
[INFO] [stdout] 648 |                 b'0' ... b'9' => oplevel = 999, // TODO: Parse this
[INFO] [stdout]     |                      ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/p10.rs:1024:38
[INFO] [stdout]      |
[INFO] [stdout] 1024 | ...                   b'0' ... b'9' => {
[INFO] [stdout]      |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.38s
[INFO] running `Command { std: "docker" "inspect" "6df893a61f6d96667a21073722d85917226c0dae64a2cc5c63bf27fb6fb6a39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df893a61f6d96667a21073722d85917226c0dae64a2cc5c63bf27fb6fb6a39e", kill_on_drop: false }`
[INFO] [stdout] 6df893a61f6d96667a21073722d85917226c0dae64a2cc5c63bf27fb6fb6a39e