[INFO] cloning repository https://github.com/lesguillemets/find_the_conways
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lesguillemets/find_the_conways" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Ffind_the_conways", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Ffind_the_conways'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f24dee445cba76344258e38c55c3f4bcd24efd6
[INFO] documenting lesguillemets/find_the_conways against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Ffind_the_conways" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lesguillemets/find_the_conways on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lesguillemets/find_the_conways
[INFO] finished tweaking git repo https://github.com/lesguillemets/find_the_conways
[INFO] tweaked toml for git repo https://github.com/lesguillemets/find_the_conways written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/lesguillemets/find_the_conways already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 883fac1bd3a8506eccfce4f053586fdaf0aa888b34a72a1d92fd55438e77d1fb
[INFO] running `Command { std: "docker" "start" "-a" "883fac1bd3a8506eccfce4f053586fdaf0aa888b34a72a1d92fd55438e77d1fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "883fac1bd3a8506eccfce4f053586fdaf0aa888b34a72a1d92fd55438e77d1fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883fac1bd3a8506eccfce4f053586fdaf0aa888b34a72a1d92fd55438e77d1fb", kill_on_drop: false }`
[INFO] [stdout] 883fac1bd3a8506eccfce4f053586fdaf0aa888b34a72a1d92fd55438e77d1fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebaa5618cc704f0d10358b29fd97de68b84e61e7189430aa36b585e393c16e66
[INFO] running `Command { std: "docker" "start" "-a" "ebaa5618cc704f0d10358b29fd97de68b84e61e7189430aa36b585e393c16e66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking gnuplot v0.0.32
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]  Documenting find_the_conways v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking find_the_conways v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `gnuplot`
[INFO] [stdout]  --> src/plot_utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gnuplot;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/plot_utils.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`
[INFO] [stdout]  --> src/plot_utils.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, BufReader};
[INFO] [stdout]   |               ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]  --> src/plot_utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::time;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAVE_WIDTH`
[INFO] [stdout]  --> src/plot_utils.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | const SAVE_WIDTH: u32 = 800;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SAVE_HEIGHT`
[INFO] [stdout]  --> src/plot_utils.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const SAVE_HEIGHT: u32 = 600;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.53s
[INFO] running `Command { std: "docker" "inspect" "ebaa5618cc704f0d10358b29fd97de68b84e61e7189430aa36b585e393c16e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebaa5618cc704f0d10358b29fd97de68b84e61e7189430aa36b585e393c16e66", kill_on_drop: false }`
[INFO] [stdout] ebaa5618cc704f0d10358b29fd97de68b84e61e7189430aa36b585e393c16e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 977ed41362eb94337632c7346591cc110f344f98a584509d88e4fd965ef90f49
[INFO] running `Command { std: "docker" "start" "-a" "977ed41362eb94337632c7346591cc110f344f98a584509d88e4fd965ef90f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking gnuplot v0.0.32
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]  Documenting find_the_conways v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.46s
[INFO] running `Command { std: "docker" "inspect" "977ed41362eb94337632c7346591cc110f344f98a584509d88e4fd965ef90f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977ed41362eb94337632c7346591cc110f344f98a584509d88e4fd965ef90f49", kill_on_drop: false }`
[INFO] [stdout] 977ed41362eb94337632c7346591cc110f344f98a584509d88e4fd965ef90f49