[INFO] cloning repository https://github.com/FelixRilling/colo.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FelixRilling/colo.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d32157e55d3559451bb5ed46af77ce490322c44
[INFO] testing FelixRilling/colo.rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixRilling%2Fcolo.rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FelixRilling/colo.rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FelixRilling/colo.rs
[INFO] finished tweaking git repo https://github.com/FelixRilling/colo.rs
[INFO] tweaked toml for git repo https://github.com/FelixRilling/colo.rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/FelixRilling/colo.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5753ee9c4b81ec25a6bad788a1a414b27b26b5134a3eb471e98f9b94b0218a4
[INFO] running `Command { std: "docker" "start" "-a" "d5753ee9c4b81ec25a6bad788a1a414b27b26b5134a3eb471e98f9b94b0218a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5753ee9c4b81ec25a6bad788a1a414b27b26b5134a3eb471e98f9b94b0218a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5753ee9c4b81ec25a6bad788a1a414b27b26b5134a3eb471e98f9b94b0218a4", kill_on_drop: false }`
[INFO] [stdout] d5753ee9c4b81ec25a6bad788a1a414b27b26b5134a3eb471e98f9b94b0218a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35be73f01d4646d2914e3d572bc8f218aefb331c33006357eb5e1580a27bd9d4
[INFO] running `Command { std: "docker" "start" "-a" "35be73f01d4646d2914e3d572bc8f218aefb331c33006357eb5e1580a27bd9d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.6
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling az v1.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rug v1.13.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling color-utils-internal v0.1.0 (/opt/rustwide/workdir/crates/internal)
[INFO] [stderr]    Compiling color-utils v0.1.0 (/opt/rustwide/workdir/crates/lib)
[INFO] [stderr]    Compiling color-utils-cli v0.1.0 (/opt/rustwide/workdir/crates/cli)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 26s
[INFO] running `Command { std: "docker" "inspect" "35be73f01d4646d2914e3d572bc8f218aefb331c33006357eb5e1580a27bd9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35be73f01d4646d2914e3d572bc8f218aefb331c33006357eb5e1580a27bd9d4", kill_on_drop: false }`
[INFO] [stdout] 35be73f01d4646d2914e3d572bc8f218aefb331c33006357eb5e1580a27bd9d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0505bf4ee1ae27ede8f445ae9a0a08bd6a724390e165c7dd68c7907fe69b3647
[INFO] running `Command { std: "docker" "start" "-a" "0505bf4ee1ae27ede8f445ae9a0a08bd6a724390e165c7dd68c7907fe69b3647", kill_on_drop: false }`
[INFO] [stderr]    Compiling color-utils-internal v0.1.0 (/opt/rustwide/workdir/crates/internal)
[INFO] [stderr]    Compiling color-utils v0.1.0 (/opt/rustwide/workdir/crates/lib)
[INFO] [stderr]    Compiling color-utils-cli v0.1.0 (/opt/rustwide/workdir/crates/cli)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "0505bf4ee1ae27ede8f445ae9a0a08bd6a724390e165c7dd68c7907fe69b3647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0505bf4ee1ae27ede8f445ae9a0a08bd6a724390e165c7dd68c7907fe69b3647", kill_on_drop: false }`
[INFO] [stdout] 0505bf4ee1ae27ede8f445ae9a0a08bd6a724390e165c7dd68c7907fe69b3647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1452073acb47d6e36a79075bb4b6565f62b36aa6f1afebaa1ff1bfe775e6a0cd
[INFO] running `Command { std: "docker" "start" "-a" "1452073acb47d6e36a79075bb4b6565f62b36aa6f1afebaa1ff1bfe775e6a0cd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] running 67 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/color_utils-eace591915223eb0)
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_high ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_low ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_ignores_order ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_invalid_length ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_lowest ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_long_notation_alpha ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_short_notation ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_invalid_chars ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_long_notation ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_short_notation_alpha ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_average ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::fits_in_u8_false_if_too_precise ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_shorthand_notation_possible ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_shorthand_notation_not_possible_alpha ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_shorthand_notation_never ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::to_u8_round_errors_out_of_range ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::with_val_creates_with_val ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::to_u8_round_rounds ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::from_u8_converts_to_float ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::fits_in_u8_false_if_fitting ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_omit_alpha_never ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_lowercase ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_val_ignores_order ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_val_same_color ... ok
[INFO] [stdout] test rgb::hex_str::tests::from_hex_str_errors_for_no_hash ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_shorthand_notation_possible_alpha ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_same_color ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::to_u8_round_converts_from_float ... ok
[INFO] [stdout] test rgb::rgb_channel::tests::to_u8_converts_from_float ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_omit_alpha_channel_non_opaque ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_val_max_contrast ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_uppercase ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_shorthand_notation_not_possible ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_omit_alpha_channel_non_opaque ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_omit_alpha_channel_opaque ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_percentage_alpha_channel ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_number_alpha_channel ... ok
[INFO] [stdout] test rgb::hex_str::tests::to_hex_str_omit_alpha_channel_opaque ... ok
[INFO] [stdout] test contrast::aa_aaa::tests::contrast_ratio_levels_reached_max_contrast ... ok
[INFO] [stdout] test rgb::tests::channels_fit_in_u8_false_if_not_all_fit ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_number_color_channel ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_number_color_channel_decimals ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_omit_alpha_never ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_percentage_color_channel_decimals ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::to_rgb_str_percentage_color_channel ... ok
[INFO] [stdout] test rgb::tests::channels_fit_in_u8_true_if_all_fit ... ok
[INFO] [stdout] test rgb::tests::is_opaque_false_for_transparent ... ok
[INFO] [stdout] test rgb::tests::is_opaque_true_for_opaque ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage_with_alpha_percentage ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage_with_alpha_decimal ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_disallow_number_mix ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integer_below_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_decimal_above_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_percentage_below_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_percentage_above_range ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/colu-42629affb9f91823)
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integer_decimal ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_invalid_syntax ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_decimal ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_decimal_below_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integers_with_alpha_percentage ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage_above_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integer ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_ignores_case ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_integer_above_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage_below_range ... ok
[INFO] [stdout] test rgb::rgb_function_str::tests::from_rgb_str_percentage_decimal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test color_printing::tests::get_best_contrast_finds_result ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/color_utils_internal-39a18258923f45c3)
[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]    Doc-tests color-utils
[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]    Doc-tests color-utils-internal
[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" "1452073acb47d6e36a79075bb4b6565f62b36aa6f1afebaa1ff1bfe775e6a0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1452073acb47d6e36a79075bb4b6565f62b36aa6f1afebaa1ff1bfe775e6a0cd", kill_on_drop: false }`
[INFO] [stdout] 1452073acb47d6e36a79075bb4b6565f62b36aa6f1afebaa1ff1bfe775e6a0cd