[INFO] fetching crate superpixel 0.1.1...
[INFO] testing superpixel-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate superpixel 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate superpixel 0.1.1 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 crates.io crate superpixel 0.1.1
[INFO] finished tweaking crates.io crate superpixel 0.1.1
[INFO] tweaked toml for crates.io crate superpixel 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 501dafb25765641e97a91562522a2451ae3195357559dbadb0a79b3c9f0de83f
[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" "501dafb25765641e97a91562522a2451ae3195357559dbadb0a79b3c9f0de83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "501dafb25765641e97a91562522a2451ae3195357559dbadb0a79b3c9f0de83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "501dafb25765641e97a91562522a2451ae3195357559dbadb0a79b3c9f0de83f", kill_on_drop: false }`
[INFO] [stdout] 501dafb25765641e97a91562522a2451ae3195357559dbadb0a79b3c9f0de83f
[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" "RUSTFLAGS=--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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a30de618c4a79f384243667026c285a4a2bfca38745329aed34ca40df47ea726
[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" "a30de618c4a79f384243667026c285a4a2bfca38745329aed34ca40df47ea726", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling 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]     |                 ^^^^^^^^^^^^^^^^^^^^^ 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 block return value
[INFO] [stdout]    --> src/lib.rs:487:17
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 (y * width + (x - 1))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:451:17
[INFO] [stdout]     |
[INFO] [stdout] 451 |             let idx = y * width + x;
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `klabels`
[INFO] [stdout]    --> src/lib.rs:438:5
[INFO] [stdout]     |
[INFO] [stdout] 438 |     klabels: &Vec<i32>,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outline_color`
[INFO] [stdout]    --> src/lib.rs:440:5
[INFO] [stdout]     |
[INFO] [stdout] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.50s
[INFO] running `Command { std: "docker" "inspect" "a30de618c4a79f384243667026c285a4a2bfca38745329aed34ca40df47ea726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30de618c4a79f384243667026c285a4a2bfca38745329aed34ca40df47ea726", kill_on_drop: false }`
[INFO] [stdout] a30de618c4a79f384243667026c285a4a2bfca38745329aed34ca40df47ea726
[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" "RUSTFLAGS=--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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1570e66a3c947dc69b5a3413135116eb9062e74c39c0f2cec0a152e953cd7d6d
[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" "1570e66a3c947dc69b5a3413135116eb9062e74c39c0f2cec0a152e953cd7d6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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]     |                 ^^^^^^^^^^^^^^^^^^^^^ 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 block return value
[INFO] [stdout]    --> src/lib.rs:487:17
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 (y * width + (x - 1))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:451:17
[INFO] [stdout]     |
[INFO] [stdout] 451 |             let idx = y * width + x;
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `klabels`
[INFO] [stdout]    --> src/lib.rs:438:5
[INFO] [stdout]     |
[INFO] [stdout] 438 |     klabels: &Vec<i32>,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outline_color`
[INFO] [stdout]    --> src/lib.rs:440:5
[INFO] [stdout]     |
[INFO] [stdout] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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]     |                 ^^^^^^^^^^^^^^^^^^^^^ 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 block return value
[INFO] [stdout]    --> src/lib.rs:487:17
[INFO] [stdout]     |
[INFO] [stdout] 487 |                 (y * width + (x - 1))
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/lib.rs:451:17
[INFO] [stdout]     |
[INFO] [stdout] 451 |             let idx = y * width + x;
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `klabels`
[INFO] [stdout]    --> src/lib.rs:438:5
[INFO] [stdout]     |
[INFO] [stdout] 438 |     klabels: &Vec<i32>,
[INFO] [stdout]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outline_color`
[INFO] [stdout]    --> src/lib.rs:440:5
[INFO] [stdout]     |
[INFO] [stdout] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "1570e66a3c947dc69b5a3413135116eb9062e74c39c0f2cec0a152e953cd7d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1570e66a3c947dc69b5a3413135116eb9062e74c39c0f2cec0a152e953cd7d6d", kill_on_drop: false }`
[INFO] [stdout] 1570e66a3c947dc69b5a3413135116eb9062e74c39c0f2cec0a152e953cd7d6d
[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" "RUSTFLAGS=--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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31528c367a333640a4ca11b8a6c6433bea661b88a954308f5afce20b2f65efc8
[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" "31528c367a333640a4ca11b8a6c6433bea661b88a954308f5afce20b2f65efc8", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:480:17
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 ((y - 1) * width + x)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:487:17
[INFO] [stderr]     |
[INFO] [stderr] 487 |                 (y * width + (x - 1))
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/lib.rs:451:17
[INFO] [stderr]     |
[INFO] [stderr] 451 |             let idx = y * width + x;
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `klabels`
[INFO] [stderr]    --> src/lib.rs:438:5
[INFO] [stderr]     |
[INFO] [stderr] 438 |     klabels: &Vec<i32>,
[INFO] [stderr]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outline_color`
[INFO] [stderr]    --> src/lib.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:480:17
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 ((y - 1) * width + x)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:487:17
[INFO] [stderr]     |
[INFO] [stderr] 487 |                 (y * width + (x - 1))
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/lib.rs:451:17
[INFO] [stderr]     |
[INFO] [stderr] 451 |             let idx = y * width + x;
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `klabels`
[INFO] [stderr]    --> src/lib.rs:438:5
[INFO] [stderr]     |
[INFO] [stderr] 438 |     klabels: &Vec<i32>,
[INFO] [stderr]     |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_klabels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outline_color`
[INFO] [stderr]    --> src/lib.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outline_color`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/superpixel-1aa8a373ec210c42
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_rgb_to_xyz ... ok
[INFO] [stderr]    Doc-tests superpixel
[INFO] [stdout] test test::test_rgb_to_lab ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:480:17
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 ((y - 1) * width + x)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:487:17
[INFO] [stderr]     |
[INFO] [stderr] 487 |                 (y * width + (x - 1))
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31528c367a333640a4ca11b8a6c6433bea661b88a954308f5afce20b2f65efc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31528c367a333640a4ca11b8a6c6433bea661b88a954308f5afce20b2f65efc8", kill_on_drop: false }`
[INFO] [stdout] 31528c367a333640a4ca11b8a6c6433bea661b88a954308f5afce20b2f65efc8
