[INFO] fetching crate swatchthis 0.1.0...
[INFO] testing swatchthis-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate swatchthis 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate swatchthis 0.1.0
[INFO] finished tweaking crates.io crate swatchthis 0.1.0
[INFO] tweaked toml for crates.io crate swatchthis 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate swatchthis 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate swatchthis 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 550f721d36423ec43be5b57d84f66c61bdf481d3e46badacd9c202306f5be379
[INFO] running `Command { std: "docker" "start" "-a" "550f721d36423ec43be5b57d84f66c61bdf481d3e46badacd9c202306f5be379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "550f721d36423ec43be5b57d84f66c61bdf481d3e46badacd9c202306f5be379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "550f721d36423ec43be5b57d84f66c61bdf481d3e46badacd9c202306f5be379", kill_on_drop: false }`
[INFO] [stdout] 550f721d36423ec43be5b57d84f66c61bdf481d3e46badacd9c202306f5be379
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f02089262fc971c9e6bcd7da9d0389c1f872c19c3663ed2bf523713fe765cbde
[INFO] running `Command { std: "docker" "start" "-a" "f02089262fc971c9e6bcd7da9d0389c1f872c19c3663ed2bf523713fe765cbde", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling swatchthis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "f02089262fc971c9e6bcd7da9d0389c1f872c19c3663ed2bf523713fe765cbde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02089262fc971c9e6bcd7da9d0389c1f872c19c3663ed2bf523713fe765cbde", kill_on_drop: false }`
[INFO] [stdout] f02089262fc971c9e6bcd7da9d0389c1f872c19c3663ed2bf523713fe765cbde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 650c32f4d528b5ee2dc867ec8ac73f03469dd351409be75fa598e54e8404344b
[INFO] running `Command { std: "docker" "start" "-a" "650c32f4d528b5ee2dc867ec8ac73f03469dd351409be75fa598e54e8404344b", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling swatchthis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "650c32f4d528b5ee2dc867ec8ac73f03469dd351409be75fa598e54e8404344b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650c32f4d528b5ee2dc867ec8ac73f03469dd351409be75fa598e54e8404344b", kill_on_drop: false }`
[INFO] [stdout] 650c32f4d528b5ee2dc867ec8ac73f03469dd351409be75fa598e54e8404344b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4dec774b9075580f0fea3f7ecd5d31678e3f03204f404695bbfcd8b1598baae3
[INFO] running `Command { std: "docker" "start" "-a" "4dec774b9075580f0fea3f7ecd5d31678e3f03204f404695bbfcd8b1598baae3", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/swatchthis-15ce27629f0b2fd7)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test kmeans::tests::extracts_obvious_clusters_rgb ... ok
[INFO] [stdout] test color::tests::rgb_to_lab_roundtrip ... ok
[INFO] [stdout] test kmeans::tests::k_larger_than_pixels ... ok
[INFO] [stdout] test kmeans::tests::random_init_works ... ok
[INFO] [stdout] test kmeans::tests::single_colour ... ok
[INFO] [stdout] test kmeans::tests::extracts_obvious_clusters_lab ... ok
[INFO] [stdout] test color::tests::black_lab_values ... ok
[INFO] [stdout] test color::tests::rgb_to_hex ... ok
[INFO] [stdout] test kmeans::tests::empty_input ... ok
[INFO] [stdout] test color::tests::white_lab_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests swatchthis
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/color.rs - color::Lab::to_rgb (line 90) ... ok
[INFO] [stdout] test src/kmeans.rs - kmeans::extract_colors (line 44) ... ok
[INFO] [stdout] test src/color.rs - color::Rgb::to_lab (line 42) ... ok
[INFO] [stdout] test src/lib.rs - pixels_from_rgba (line 76) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - generate_swatches (line 43) ... ok
[INFO] [stdout] test src/swatch.rs - swatch::Swatch (line 10) ... ok
[INFO] [stdout] test src/color.rs - color::Rgb (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.74s; merged doctests compilation took 0.67s
[INFO] running `Command { std: "docker" "inspect" "4dec774b9075580f0fea3f7ecd5d31678e3f03204f404695bbfcd8b1598baae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dec774b9075580f0fea3f7ecd5d31678e3f03204f404695bbfcd8b1598baae3", kill_on_drop: false }`
[INFO] [stdout] 4dec774b9075580f0fea3f7ecd5d31678e3f03204f404695bbfcd8b1598baae3