[INFO] cloning repository https://github.com/vbo/nnrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vbo/nnrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbo%2Fnnrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbo%2Fnnrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2321ff9ded9e103826e2f6523d21cf5b8912a3b
[INFO] documenting vbo/nnrs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbo%2Fnnrs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  28% (8/28)   
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Checking out files: 100% (28/28), done.
[INFO] validating manifest of git repo https://github.com/vbo/nnrs on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vbo/nnrs
[INFO] finished tweaking git repo https://github.com/vbo/nnrs
[INFO] tweaked toml for git repo https://github.com/vbo/nnrs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/vbo/nnrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ca8c393af5f67a6c4fb7647c30f68bf13b903391496ed63cd8005bdba7c2cb0
[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" "0ca8c393af5f67a6c4fb7647c30f68bf13b903391496ed63cd8005bdba7c2cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca8c393af5f67a6c4fb7647c30f68bf13b903391496ed63cd8005bdba7c2cb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca8c393af5f67a6c4fb7647c30f68bf13b903391496ed63cd8005bdba7c2cb0", kill_on_drop: false }`
[INFO] [stdout] 0ca8c393af5f67a6c4fb7647c30f68bf13b903391496ed63cd8005bdba7c2cb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f7ab19a5dea9efadc3294592466e66f8b0ed85abfb23e4da3e3de01348acd95
[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" "7f7ab19a5dea9efadc3294592466e66f8b0ed85abfb23e4da3e3de01348acd95", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.43
[INFO] [stderr]    Compiling proc-macro2 v0.3.7
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling rand_derive v0.3.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.43
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]  Documenting nnrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/snake_nn.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/snake_nn.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.30s
[INFO] running `Command { std: "docker" "inspect" "7f7ab19a5dea9efadc3294592466e66f8b0ed85abfb23e4da3e3de01348acd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f7ab19a5dea9efadc3294592466e66f8b0ed85abfb23e4da3e3de01348acd95", kill_on_drop: false }`
[INFO] [stdout] 7f7ab19a5dea9efadc3294592466e66f8b0ed85abfb23e4da3e3de01348acd95