[INFO] cloning repository https://github.com/mneumann/neat-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mneumann/neat-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmneumann%2Fneat-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmneumann%2Fneat-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 854a09f6a712d2844f7d526e9f33f0c743e525fc
[INFO] documenting mneumann/neat-rs against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmneumann%2Fneat-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mneumann/neat-rs on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mneumann/neat-rs
[INFO] finished tweaking git repo https://github.com/mneumann/neat-rs
[INFO] tweaked toml for git repo https://github.com/mneumann/neat-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mneumann/neat-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/mneumann/cppn-rs`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/mneumann/acyclic-network-rs`
[INFO] [stderr]     Updating git repository `https://github.com/mneumann/cppn-rs`
[INFO] [stderr]     Updating git repository `https://github.com/nikomatsakis/rayon`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded acyclic-network v0.2.0
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] [stderr]   Downloaded munkres v0.3.0
[INFO] [stderr]   Downloaded asexp v0.3.2
[INFO] [stderr]   Downloaded graph-io-gml v0.1.1
[INFO] [stderr]   Downloaded petgraph v0.2.10
[INFO] [stderr]   Downloaded graph-neighbor-matching v0.6.2
[INFO] [stderr]   Downloaded closed01 v0.4.0
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1adaa6bfc700977cc9a18dc3b091d2ba8b2d01b23a840a3d182186e675b606f
[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" "f1adaa6bfc700977cc9a18dc3b091d2ba8b2d01b23a840a3d182186e675b606f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1adaa6bfc700977cc9a18dc3b091d2ba8b2d01b23a840a3d182186e675b606f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1adaa6bfc700977cc9a18dc3b091d2ba8b2d01b23a840a3d182186e675b606f", kill_on_drop: false }`
[INFO] [stdout] f1adaa6bfc700977cc9a18dc3b091d2ba8b2d01b23a840a3d182186e675b606f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33339267e38cd926e311ac5098787571f9aa091a4173de2bb1c7634f2c5d196f
[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" "33339267e38cd926e311ac5098787571f9aa091a4173de2bb1c7634f2c5d196f", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling rayon-core v1.6.0 (https://github.com/nikomatsakis/rayon#68edcf6d)
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking nalgebra v0.5.1
[INFO] [stderr]     Checking acyclic-network v0.2.0
[INFO] [stderr]     Checking acyclic-network v0.2.0 (https://github.com/mneumann/acyclic-network-rs#6d36d562)
[INFO] [stderr]     Checking cppn v0.3.0 (https://github.com/mneumann/cppn-rs#14346a84)
[INFO] [stderr]     Checking rayon v1.2.0 (https://github.com/nikomatsakis/rayon#68edcf6d)
[INFO] [stderr]     Checking closed01 v0.4.0
[INFO] [stderr]  Documenting neat v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::num::Zero`
[INFO] [stdout]  --> src/fitness.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ no `Zero` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rayon::par_iter`
[INFO] [stdout]   --> src/population.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | use rayon::par_iter::*;
[INFO] [stdout]    |            ^^^^^^^^ could not find `par_iter` in `rayon`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_arith, zero_one)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `neat`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name neat src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern acyclic_network=/opt/rustwide/target/debug/deps/libacyclic_network-9b8ac23e25a5881b.rmeta --extern closed01=/opt/rustwide/target/debug/deps/libclosed01-d55cf8b9a4e91047.rmeta --extern cppn=/opt/rustwide/target/debug/deps/libcppn-aa393e9aed0116a4.rmeta --extern fixedbitset=/opt/rustwide/target/debug/deps/libfixedbitset-7d34b40fc5884c31.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-7716449a6325aa11.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e4aa0912053fc98e.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-643a2dca6fb69573.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "33339267e38cd926e311ac5098787571f9aa091a4173de2bb1c7634f2c5d196f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33339267e38cd926e311ac5098787571f9aa091a4173de2bb1c7634f2c5d196f", kill_on_drop: false }`
[INFO] [stdout] 33339267e38cd926e311ac5098787571f9aa091a4173de2bb1c7634f2c5d196f
