[INFO] cloning repository https://github.com/ferrouswheel/superpixel-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferrouswheel/superpixel-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84e20c5c95e88022f935ef63dd0377152aa6276c
[INFO] documenting ferrouswheel/superpixel-rs against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrouswheel%2Fsuperpixel-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ferrouswheel/superpixel-rs on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ferrouswheel/superpixel-rs
[INFO] finished tweaking git repo https://github.com/ferrouswheel/superpixel-rs
[INFO] tweaked toml for git repo https://github.com/ferrouswheel/superpixel-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ferrouswheel/superpixel-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gif v0.10.0
[INFO] [stderr]   Downloaded num-traits v0.2.5
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded num-derive v0.2.2
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded rayon v0.8.2
[INFO] [stderr]   Downloaded futures v0.1.14
[INFO] [stderr]   Downloaded libc v0.2.28
[INFO] [stderr]   Downloaded inflate v0.4.3
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded conv v0.3.3
[INFO] [stderr]   Downloaded rand v0.3.16
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.13
[INFO] [stderr]   Downloaded num-rational v0.1.39
[INFO] [stderr]   Downloaded magenta v0.1.1
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded magenta-sys v0.1.1
[INFO] [stderr]   Downloaded quote v0.6.8
[INFO] [stderr]   Downloaded strsim v0.5.2
[INFO] [stderr]   Downloaded docopt v0.6.86
[INFO] [stderr]   Downloaded custom_derive v0.1.7
[INFO] [stderr]   Downloaded proc-macro2 v0.4.17
[INFO] [stderr]   Downloaded deflate v0.7.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be46176fda4c7926431ea72fea32523adaeec1ea135f3e2aeb79a84546bd8e7a
[INFO] running `Command { std: "docker" "start" "-a" "be46176fda4c7926431ea72fea32523adaeec1ea135f3e2aeb79a84546bd8e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be46176fda4c7926431ea72fea32523adaeec1ea135f3e2aeb79a84546bd8e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be46176fda4c7926431ea72fea32523adaeec1ea135f3e2aeb79a84546bd8e7a", kill_on_drop: false }`
[INFO] [stdout] be46176fda4c7926431ea72fea32523adaeec1ea135f3e2aeb79a84546bd8e7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 081f0578cb4c65f8162977f1afc5c80fcb3859ffc00d9394ffb4e9715ce1752a
[INFO] running `Command { std: "docker" "start" "-a" "081f0578cb4c65f8162977f1afc5c80fcb3859ffc00d9394ffb4e9715ce1752a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.17
[INFO] [stderr]     Checking libc v0.2.28
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking deflate v0.7.14
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]  Documenting superpixel v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:480:17
[INFO] [stdout]     |
[INFO] [stdout] 480 |                 ((y - 1) * width + x)
[INFO] [stdout]     |                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 480 -                 ((y - 1) * width + x)
[INFO] [stdout] 480 +                 (y - 1) * width + x
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:487:17
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 (y * width + (x - 1))
[INFO] [stdout]     |                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 487 -                 (y * width + (x - 1))
[INFO] [stdout] 487 +                 y * width + (x - 1)
[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 8.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/superpixel/index.html
[INFO] running `Command { std: "docker" "inspect" "081f0578cb4c65f8162977f1afc5c80fcb3859ffc00d9394ffb4e9715ce1752a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081f0578cb4c65f8162977f1afc5c80fcb3859ffc00d9394ffb4e9715ce1752a", kill_on_drop: false }`
[INFO] [stdout] 081f0578cb4c65f8162977f1afc5c80fcb3859ffc00d9394ffb4e9715ce1752a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fbceb4c70a26d6b918f739cf58013046e84929c16ee7384298ede96d05a6f83
[INFO] running `Command { std: "docker" "start" "-a" "8fbceb4c70a26d6b918f739cf58013046e84929c16ee7384298ede96d05a6f83", kill_on_drop: false }`
[INFO] [stderr]  Documenting superpixel v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:480:17
[INFO] [stdout]     |
[INFO] [stdout] 480 |                 ((y - 1) * width + x)
[INFO] [stdout]     |                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 480 -                 ((y - 1) * width + x)
[INFO] [stdout] 480 +                 (y - 1) * width + x
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:487:17
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 (y * width + (x - 1))
[INFO] [stdout]     |                 ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 487 -                 (y * width + (x - 1))
[INFO] [stdout] 487 +                 y * width + (x - 1)
[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 0.80s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/superpixel/index.html
[INFO] running `Command { std: "docker" "inspect" "8fbceb4c70a26d6b918f739cf58013046e84929c16ee7384298ede96d05a6f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fbceb4c70a26d6b918f739cf58013046e84929c16ee7384298ede96d05a6f83", kill_on_drop: false }`
[INFO] [stdout] 8fbceb4c70a26d6b918f739cf58013046e84929c16ee7384298ede96d05a6f83
