[INFO] fetching crate contrast-checker 0.1.1...
[INFO] testing contrast-checker-0.1.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate contrast-checker 0.1.1 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate contrast-checker 0.1.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contrast-checker 0.1.1
[INFO] finished tweaking crates.io crate contrast-checker 0.1.1
[INFO] tweaked toml for crates.io crate contrast-checker 0.1.1 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate crates.io crate contrast-checker 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-hsluv v0.1.4
[INFO] [stderr]   Downloaded contrast v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9f2c23ec64ae8b010e25d4f3a71f8515aeafc2fbe1acd6fa5551f2db11c7f8c
[INFO] running `Command { std: "docker" "start" "-a" "c9f2c23ec64ae8b010e25d4f3a71f8515aeafc2fbe1acd6fa5551f2db11c7f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9f2c23ec64ae8b010e25d4f3a71f8515aeafc2fbe1acd6fa5551f2db11c7f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f2c23ec64ae8b010e25d4f3a71f8515aeafc2fbe1acd6fa5551f2db11c7f8c", kill_on_drop: false }`
[INFO] [stdout] c9f2c23ec64ae8b010e25d4f3a71f8515aeafc2fbe1acd6fa5551f2db11c7f8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c746a2eb59fecfca6dce1b36dd26b5d302d27843fe07c874317456e6b6d8d65c
[INFO] running `Command { std: "docker" "start" "-a" "c746a2eb59fecfca6dce1b36dd26b5d302d27843fe07c874317456e6b6d8d65c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling bytemuck v1.4.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling rust-hsluv v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rgb v0.8.25
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling contrast v0.1.0
[INFO] [stderr]    Compiling contrast-checker v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.24s
[INFO] running `Command { std: "docker" "inspect" "c746a2eb59fecfca6dce1b36dd26b5d302d27843fe07c874317456e6b6d8d65c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c746a2eb59fecfca6dce1b36dd26b5d302d27843fe07c874317456e6b6d8d65c", kill_on_drop: false }`
[INFO] [stdout] c746a2eb59fecfca6dce1b36dd26b5d302d27843fe07c874317456e6b6d8d65c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 834bb47b04ec42f3c9706aa3fcd31aa737753dad16976a16551123afc7f7b8ba
[INFO] running `Command { std: "docker" "start" "-a" "834bb47b04ec42f3c9706aa3fcd31aa737753dad16976a16551123afc7f7b8ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling contrast-checker v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "834bb47b04ec42f3c9706aa3fcd31aa737753dad16976a16551123afc7f7b8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834bb47b04ec42f3c9706aa3fcd31aa737753dad16976a16551123afc7f7b8ba", kill_on_drop: false }`
[INFO] [stdout] 834bb47b04ec42f3c9706aa3fcd31aa737753dad16976a16551123afc7f7b8ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6383fff2c60e3cf6b30f3f5a90ca4d3850ee65ea173735c9dd8d23b6fad2835
[INFO] running `Command { std: "docker" "start" "-a" "e6383fff2c60e3cf6b30f3f5a90ca4d3850ee65ea173735c9dd8d23b6fad2835", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/contrast_checker-f226651323b99efd)
[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" "e6383fff2c60e3cf6b30f3f5a90ca4d3850ee65ea173735c9dd8d23b6fad2835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6383fff2c60e3cf6b30f3f5a90ca4d3850ee65ea173735c9dd8d23b6fad2835", kill_on_drop: false }`
[INFO] [stdout] e6383fff2c60e3cf6b30f3f5a90ca4d3850ee65ea173735c9dd8d23b6fad2835
