[INFO] cloning repository https://github.com/Mitchell-Nuckols/corner-detection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mitchell-Nuckols/corner-detection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMitchell-Nuckols%2Fcorner-detection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMitchell-Nuckols%2Fcorner-detection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46702b55be0d4080fc5218f37f0481f4c884d7fb
[INFO] documenting Mitchell-Nuckols/corner-detection 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%2FMitchell-Nuckols%2Fcorner-detection" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mitchell-Nuckols/corner-detection 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/Mitchell-Nuckols/corner-detection
[INFO] finished tweaking git repo https://github.com/Mitchell-Nuckols/corner-detection
[INFO] tweaked toml for git repo https://github.com/Mitchell-Nuckols/corner-detection written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Mitchell-Nuckols/corner-detection 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f2c77ff766ec054f8ebd53762b2ceca32f3b32b8312c0b3f6d7cdd778d088a5b
[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" "f2c77ff766ec054f8ebd53762b2ceca32f3b32b8312c0b3f6d7cdd778d088a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2c77ff766ec054f8ebd53762b2ceca32f3b32b8312c0b3f6d7cdd778d088a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c77ff766ec054f8ebd53762b2ceca32f3b32b8312c0b3f6d7cdd778d088a5b", kill_on_drop: false }`
[INFO] [stdout] f2c77ff766ec054f8ebd53762b2ceca32f3b32b8312c0b3f6d7cdd778d088a5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 118ec6f156c0209f8e81a81a4e367dbf091ada3fc43cfc07a4f157773f306886
[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" "118ec6f156c0209f8e81a81a4e367dbf091ada3fc43cfc07a4f157773f306886", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking gif v0.10.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]  Documenting corner-detection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |                     if (x * y == img.width() * img.height()) {break;}
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.98s
[INFO] running `Command { std: "docker" "inspect" "118ec6f156c0209f8e81a81a4e367dbf091ada3fc43cfc07a4f157773f306886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "118ec6f156c0209f8e81a81a4e367dbf091ada3fc43cfc07a4f157773f306886", kill_on_drop: false }`
[INFO] [stdout] 118ec6f156c0209f8e81a81a4e367dbf091ada3fc43cfc07a4f157773f306886