[INFO] cloning repository https://github.com/khskarl/genetic-thing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khskarl/genetic-thing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhskarl%2Fgenetic-thing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhskarl%2Fgenetic-thing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a0df2414ca4389cc43d063c349625b27f201b25
[INFO] documenting khskarl/genetic-thing 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%2Fkhskarl%2Fgenetic-thing" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khskarl/genetic-thing 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/khskarl/genetic-thing
[INFO] finished tweaking git repo https://github.com/khskarl/genetic-thing
[INFO] tweaked toml for git repo https://github.com/khskarl/genetic-thing written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/khskarl/genetic-thing 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 num-bigint v0.1.37
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded gnuplot v0.0.22
[INFO] [stderr]   Downloaded num-complex v0.1.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] d26fcc890311719fa9e4b67a7f9ed9919f8d5ac6992bd69d078e2b60faa8de22
[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" "d26fcc890311719fa9e4b67a7f9ed9919f8d5ac6992bd69d078e2b60faa8de22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d26fcc890311719fa9e4b67a7f9ed9919f8d5ac6992bd69d078e2b60faa8de22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d26fcc890311719fa9e4b67a7f9ed9919f8d5ac6992bd69d078e2b60faa8de22", kill_on_drop: false }`
[INFO] [stdout] d26fcc890311719fa9e4b67a7f9ed9919f8d5ac6992bd69d078e2b60faa8de22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] c778a684ad224bdeeacbba891ed44707c3ab2fb4a55ebb746e13e2a8aae4c2cb
[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" "c778a684ad224bdeeacbba891ed44707c3ab2fb4a55ebb746e13e2a8aae4c2cb", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.23
[INFO] [stderr]     Checking gnuplot v0.0.22
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]  Documenting genetic-thing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/genetic/fitness.rs:248:23
[INFO] [stdout]     |
[INFO] [stdout] 248 |     let mut penalty = (factor_bad_steps);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/genetic/fitness.rs:249:23
[INFO] [stdout]     |
[INFO] [stdout] 249 |     let mut fitness = (factor_close * 0.2 + factor_consecutive_steps);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/genetic/mutation.rs:52:74
[INFO] [stdout]    |
[INFO] [stdout] 52 |         *gene = rand::thread_rng().gen_range(range.start, range.end + 1);;
[INFO] [stdout]    |                                                                          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/genetic/mutation.rs:61:76
[INFO] [stdout]    |
[INFO] [stdout] 61 |         *gene = rand::thread_rng().gen_range(range.start, range.end + 1.0);;
[INFO] [stdout]    |                                                                            ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "c778a684ad224bdeeacbba891ed44707c3ab2fb4a55ebb746e13e2a8aae4c2cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c778a684ad224bdeeacbba891ed44707c3ab2fb4a55ebb746e13e2a8aae4c2cb", kill_on_drop: false }`
[INFO] [stdout] c778a684ad224bdeeacbba891ed44707c3ab2fb4a55ebb746e13e2a8aae4c2cb