[INFO] cloning repository https://github.com/mazznoer/gradient-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mazznoer/gradient-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazznoer%2Fgradient-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazznoer%2Fgradient-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1884b6dce8d1ca4d8b29a27e0d6e9c39efdcf68f
[INFO] testing mazznoer/gradient-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%2Fmazznoer%2Fgradient-rs" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mazznoer/gradient-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/mazznoer/gradient-rs
[INFO] finished tweaking git repo https://github.com/mazznoer/gradient-rs
[INFO] tweaked toml for git repo https://github.com/mazznoer/gradient-rs written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/mazznoer/gradient-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.9.2
[INFO] [stderr]   Downloaded colorgrad v0.5.0
[INFO] [stderr]   Downloaded csscolorparser v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 5d9bf9e895968904c9446fd46dc57f3e5ede1d30b32f1ece9de1a601c8090e46
[INFO] running `Command { std: "docker" "start" "-a" "5d9bf9e895968904c9446fd46dc57f3e5ede1d30b32f1ece9de1a601c8090e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d9bf9e895968904c9446fd46dc57f3e5ede1d30b32f1ece9de1a601c8090e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d9bf9e895968904c9446fd46dc57f3e5ede1d30b32f1ece9de1a601c8090e46", kill_on_drop: false }`
[INFO] [stdout] 5d9bf9e895968904c9446fd46dc57f3e5ede1d30b32f1ece9de1a601c8090e46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] da7c3985870179347eb9bf6adbe45ed0aea0fad6ae0772dda1383d8746607ae7
[INFO] running `Command { std: "docker" "start" "-a" "da7c3985870179347eb9bf6adbe45ed0aea0fad6ae0772dda1383d8746607ae7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling os_str_bytes v3.1.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling svg v0.9.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.14.2
[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 phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling csscolorparser v0.5.0
[INFO] [stderr]    Compiling colorgrad v0.5.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.4
[INFO] [stderr]    Compiling gradient v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.43s
[INFO] running `Command { std: "docker" "inspect" "da7c3985870179347eb9bf6adbe45ed0aea0fad6ae0772dda1383d8746607ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7c3985870179347eb9bf6adbe45ed0aea0fad6ae0772dda1383d8746607ae7", kill_on_drop: false }`
[INFO] [stdout] da7c3985870179347eb9bf6adbe45ed0aea0fad6ae0772dda1383d8746607ae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 5eefa34d2c76c4c707a4dc40dddb89e38e7b4ba28308f1351ce8706093c98566
[INFO] running `Command { std: "docker" "start" "-a" "5eefa34d2c76c4c707a4dc40dddb89e38e7b4ba28308f1351ce8706093c98566", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gradient v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.79s
[INFO] running `Command { std: "docker" "inspect" "5eefa34d2c76c4c707a4dc40dddb89e38e7b4ba28308f1351ce8706093c98566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eefa34d2c76c4c707a4dc40dddb89e38e7b4ba28308f1351ce8706093c98566", kill_on_drop: false }`
[INFO] [stdout] 5eefa34d2c76c4c707a4dc40dddb89e38e7b4ba28308f1351ce8706093c98566
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 04f92d16c0812288721a3b9073a6740c85b975f62a244c3276be65e83ea6ddbc
[INFO] running `Command { std: "docker" "start" "-a" "04f92d16c0812288721a3b9073a6740c85b975f62a244c3276be65e83ea6ddbc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.34s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gradient-99e00b31a4c09a36)
[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" "04f92d16c0812288721a3b9073a6740c85b975f62a244c3276be65e83ea6ddbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f92d16c0812288721a3b9073a6740c85b975f62a244c3276be65e83ea6ddbc", kill_on_drop: false }`
[INFO] [stdout] 04f92d16c0812288721a3b9073a6740c85b975f62a244c3276be65e83ea6ddbc