[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] da95c99b8b7a7caf1dfe976f3c3c08101008e88d
[INFO] testing FelixRilling/colo.rs against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[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 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded palette_derive v0.6.0
[INFO] [stderr]   Downloaded cssparser v0.29.0
[INFO] [stderr]   Downloaded palette v0.6.0
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9446794c1e9ab551b5bfcf8380b76237fc49d5bb4a9ed5e76de1ccfb44f4c38
[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" "d9446794c1e9ab551b5bfcf8380b76237fc49d5bb4a9ed5e76de1ccfb44f4c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9446794c1e9ab551b5bfcf8380b76237fc49d5bb4a9ed5e76de1ccfb44f4c38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9446794c1e9ab551b5bfcf8380b76237fc49d5bb4a9ed5e76de1ccfb44f4c38", kill_on_drop: false }`
[INFO] [stdout] d9446794c1e9ab551b5bfcf8380b76237fc49d5bb4a9ed5e76de1ccfb44f4c38
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58acd2699b883a2e8914144ec7595824985d0fe3451e173735fa2238932b5ffb
[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" "58acd2699b883a2e8914144ec7595824985d0fe3451e173735fa2238932b5ffb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling palette v0.6.0
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling approx v0.5.0
[INFO] [stderr]    Compiling color-utils-internal v0.2.0 (/opt/rustwide/workdir/crates/internal)
[INFO] [stderr]    Compiling dtoa-short v0.3.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling find-crate v0.6.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling cssparser v0.29.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling palette_derive v0.6.0
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling color-utils v0.2.0 (/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 1m 14s
[INFO] running `Command { std: "docker" "inspect" "58acd2699b883a2e8914144ec7595824985d0fe3451e173735fa2238932b5ffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58acd2699b883a2e8914144ec7595824985d0fe3451e173735fa2238932b5ffb", kill_on_drop: false }`
[INFO] [stdout] 58acd2699b883a2e8914144ec7595824985d0fe3451e173735fa2238932b5ffb
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 255c3f448ba51fce380dc41738259f21e271df34d7afe1abdbc482ac0ea50a05
[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" "255c3f448ba51fce380dc41738259f21e271df34d7afe1abdbc482ac0ea50a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling color-utils-internal v0.2.0 (/opt/rustwide/workdir/crates/internal)
[INFO] [stderr]    Compiling color-utils v0.2.0 (/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 2.91s
[INFO] running `Command { std: "docker" "inspect" "255c3f448ba51fce380dc41738259f21e271df34d7afe1abdbc482ac0ea50a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255c3f448ba51fce380dc41738259f21e271df34d7afe1abdbc482ac0ea50a05", kill_on_drop: false }`
[INFO] [stdout] 255c3f448ba51fce380dc41738259f21e271df34d7afe1abdbc482ac0ea50a05
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 885943000d8d3e2b7073cc8037cf75793f80cfb1722e9353d88d5d69f26f2a94
[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" "885943000d8d3e2b7073cc8037cf75793f80cfb1722e9353d88d5d69f26f2a94", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/color_utils-20486319719ad5a9)
[INFO] [stdout] running 23 tests
[INFO] [stdout] test to_str::hex::tests::to_hex_str_lowercase ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_omit_alpha_never ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_shorthand_notation_not_possible ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_number_alpha_channel ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_number_color_channel ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_number_color_channel_decimals ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_omit_alpha_channel_non_opaque ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_omit_alpha_channel_opaque ... ok
[INFO] [stdout] test util::tests::fits_in_u8_true_if_fitting ... ok
[INFO] [stdout] test util::tests::is_opaque_true_for_opaque ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_omit_alpha_never ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_percentage_alpha_channel ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_percentage_color_channel ... ok
[INFO] [stdout] test to_str::rgb_function::tests::to_rgb_str_percentage_color_channel_decimals ... ok
[INFO] [stdout] test util::tests::fits_in_u8_false_if_too_precise ... ok
[INFO] [stdout] test util::tests::is_opaque_false_for_transparent ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_omit_alpha_channel_non_opaque ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_uppercase ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_shorthand_notation_never ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_shorthand_notation_not_possible_alpha ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_shorthand_notation_possible_alpha ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_omit_alpha_channel_opaque ... ok
[INFO] [stdout] test to_str::hex::tests::to_hex_str_shorthand_notation_possible ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/colu-426e8fbcd218ccd8)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/color_utils_internal-70e1b49e209bd6a5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests color-utils
[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] [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" "885943000d8d3e2b7073cc8037cf75793f80cfb1722e9353d88d5d69f26f2a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885943000d8d3e2b7073cc8037cf75793f80cfb1722e9353d88d5d69f26f2a94", kill_on_drop: false }`
[INFO] [stdout] 885943000d8d3e2b7073cc8037cf75793f80cfb1722e9353d88d5d69f26f2a94