[INFO] cloning repository https://github.com/imzhongqi/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imzhongqi/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimzhongqi%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimzhongqi%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9dcead86058417c4b8be5b04187ad4bcdf427b7
[INFO] testing imzhongqi/rust-playground against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimzhongqi%2Frust-playground" "/workspace/builds/worker-98/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-98/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imzhongqi/rust-playground 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/imzhongqi/rust-playground
[INFO] finished tweaking git repo https://github.com/imzhongqi/rust-playground
[INFO] tweaked toml for git repo https://github.com/imzhongqi/rust-playground written to /workspace/builds/worker-98/source/Cargo.toml
[INFO] crate git repo https://github.com/imzhongqi/rust-playground 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust_decimal v1.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] feb36de0fe9290eb099b18299034933033eb135bcd5739c2d55da358c2534a7f
[INFO] running `Command { std: "docker" "start" "-a" "feb36de0fe9290eb099b18299034933033eb135bcd5739c2d55da358c2534a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feb36de0fe9290eb099b18299034933033eb135bcd5739c2d55da358c2534a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb36de0fe9290eb099b18299034933033eb135bcd5739c2d55da358c2534a7f", kill_on_drop: false }`
[INFO] [stdout] feb36de0fe9290eb099b18299034933033eb135bcd5739c2d55da358c2534a7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] 594806600de1d0c70b27f769986df0d16f0b06d88b7d1c075418074f07f2c9a3
[INFO] running `Command { std: "docker" "start" "-a" "594806600de1d0c70b27f769986df0d16f0b06d88b7d1c075418074f07f2c9a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rust_decimal v1.10.2
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "594806600de1d0c70b27f769986df0d16f0b06d88b7d1c075418074f07f2c9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594806600de1d0c70b27f769986df0d16f0b06d88b7d1c075418074f07f2c9a3", kill_on_drop: false }`
[INFO] [stdout] 594806600de1d0c70b27f769986df0d16f0b06d88b7d1c075418074f07f2c9a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] c0eb61c6e77762ba6a530d4a27940a36fc8ea9f37033a37f96a7e1593cb18f7b
[INFO] running `Command { std: "docker" "start" "-a" "c0eb61c6e77762ba6a530d4a27940a36fc8ea9f37033a37f96a7e1593cb18f7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "c0eb61c6e77762ba6a530d4a27940a36fc8ea9f37033a37f96a7e1593cb18f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0eb61c6e77762ba6a530d4a27940a36fc8ea9f37033a37f96a7e1593cb18f7b", kill_on_drop: false }`
[INFO] [stdout] c0eb61c6e77762ba6a530d4a27940a36fc8ea9f37033a37f96a7e1593cb18f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] 21e9ec00c3c3ac19e8fae2555d45b4e47dc422cac7a42904d33c69281ae20e8b
[INFO] running `Command { std: "docker" "start" "-a" "21e9ec00c3c3ac19e8fae2555d45b4e47dc422cac7a42904d33c69281ae20e8b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/playground-471f634f67a4c4b4)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test alg::container_with_most_water::test_max_area ... ok
[INFO] [stdout] test alg::flipping_an_image::test_flip_and_invert_image ... ok
[INFO] [stdout] test alg::is_unique_lcci::test_is_unique ... ok
[INFO] [stdout] test alg::grumpy_bookstore_owner::test_max_satisfied ... ok
[INFO] [stdout] test alg::reverse_integer::test_reverse ... ok
[INFO] [stdout] test alg::longest_common_prefix::test_longest_common_prefix ... ok
[INFO] [stdout] test alg::roman_to_integer::test_roman_to_int ... ok
[INFO] [stdout] test alg::toeplitz_matrix::test_is_toeplitz_matrix ... ok
[INFO] [stdout] test alg::transpose_matrix::test_transpose ... ok
[INFO] [stdout] test alg::two_sum::test_two_sum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "21e9ec00c3c3ac19e8fae2555d45b4e47dc422cac7a42904d33c69281ae20e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e9ec00c3c3ac19e8fae2555d45b4e47dc422cac7a42904d33c69281ae20e8b", kill_on_drop: false }`
[INFO] [stdout] 21e9ec00c3c3ac19e8fae2555d45b4e47dc422cac7a42904d33c69281ae20e8b