[INFO] fetching crate dominant_color 0.3.0...
[INFO] testing dominant_color-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dominant_color 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dominant_color 0.3.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dominant_color 0.3.0
[INFO] finished tweaking crates.io crate dominant_color 0.3.0
[INFO] tweaked toml for crates.io crate dominant_color 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53485032cbb0b3380b7d9435d72c2567d0920ededfbaa3d22d531ea407b0252f
[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" "53485032cbb0b3380b7d9435d72c2567d0920ededfbaa3d22d531ea407b0252f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53485032cbb0b3380b7d9435d72c2567d0920ededfbaa3d22d531ea407b0252f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53485032cbb0b3380b7d9435d72c2567d0920ededfbaa3d22d531ea407b0252f", kill_on_drop: false }`
[INFO] [stdout] 53485032cbb0b3380b7d9435d72c2567d0920ededfbaa3d22d531ea407b0252f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c8eb8b0d34f599f7898bf8131947683690e5f5d8accef42d0892f445f9d2297
[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" "5c8eb8b0d34f599f7898bf8131947683690e5f5d8accef42d0892f445f9d2297", kill_on_drop: false }`
[INFO] [stderr]    Compiling dominant_color v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "5c8eb8b0d34f599f7898bf8131947683690e5f5d8accef42d0892f445f9d2297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8eb8b0d34f599f7898bf8131947683690e5f5d8accef42d0892f445f9d2297", kill_on_drop: false }`
[INFO] [stdout] 5c8eb8b0d34f599f7898bf8131947683690e5f5d8accef42d0892f445f9d2297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a49eadd8dc54273797d8d5f2e229807a5dec3495fe621c83529138339dbaf37
[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" "9a49eadd8dc54273797d8d5f2e229807a5dec3495fe621c83529138339dbaf37", kill_on_drop: false }`
[INFO] [stderr]    Compiling image v0.23.12
[INFO] [stderr]    Compiling dominant_color v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.20s
[INFO] running `Command { std: "docker" "inspect" "9a49eadd8dc54273797d8d5f2e229807a5dec3495fe621c83529138339dbaf37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a49eadd8dc54273797d8d5f2e229807a5dec3495fe621c83529138339dbaf37", kill_on_drop: false }`
[INFO] [stdout] 9a49eadd8dc54273797d8d5f2e229807a5dec3495fe621c83529138339dbaf37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f78434526eb4f924a4c4938a9c06f40f9fc2e6f98cf138c78018a439ca3891a
[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" "9f78434526eb4f924a4c4938a9c06f40f9fc2e6f98cf138c78018a439ca3891a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dominant_color-c6b7e0e832c265db
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-09b0192e2f61a806
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test one_color ... ok
[INFO] [stdout] test empty_image ... ok
[INFO] [stdout] test mixed_colors ... ok
[INFO] [stdout] test semi_transparent_image ... ok
[INFO] [stdout] test semi_transparent_single_pixel ... ok
[INFO] [stdout] test semi_transparent_region_is_bigger ... ok
[INFO] [stdout] test two_colors ... ok
[INFO] [stdout] test two_colors_and_one_transparent ... ok
[INFO] [stdout] test single_pixel ... ok
[INFO] [stdout] test transparent_image ... ok
[INFO] [stderr]    Doc-tests dominant_color
[INFO] [stdout] test image ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.60s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f78434526eb4f924a4c4938a9c06f40f9fc2e6f98cf138c78018a439ca3891a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f78434526eb4f924a4c4938a9c06f40f9fc2e6f98cf138c78018a439ca3891a", kill_on_drop: false }`
[INFO] [stdout] 9f78434526eb4f924a4c4938a9c06f40f9fc2e6f98cf138c78018a439ca3891a