[INFO] cloning repository https://github.com/angtsusiong/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/angtsusiong/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangtsusiong%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangtsusiong%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5258094e47a2265f515bc7ea48fabe6e062ef73
[INFO] testing angtsusiong/rust-playground against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangtsusiong%2Frust-playground" "/workspace/builds/worker-55/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-55/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/angtsusiong/rust-playground on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/angtsusiong/rust-playground
[INFO] finished tweaking git repo https://github.com/angtsusiong/rust-playground
[INFO] tweaked toml for git repo https://github.com/angtsusiong/rust-playground written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate git repo https://github.com/angtsusiong/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98527e005b0771915e63b29530f25d76a24b802846a0f60be2f09e5f3edfe078
[INFO] running `Command { std: "docker" "start" "-a" "98527e005b0771915e63b29530f25d76a24b802846a0f60be2f09e5f3edfe078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98527e005b0771915e63b29530f25d76a24b802846a0f60be2f09e5f3edfe078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98527e005b0771915e63b29530f25d76a24b802846a0f60be2f09e5f3edfe078", kill_on_drop: false }`
[INFO] [stdout] 98527e005b0771915e63b29530f25d76a24b802846a0f60be2f09e5f3edfe078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f2b19c4f42c83ae0602b939a0cce407ea05223e8dd987c042e054417da031c1
[INFO] running `Command { std: "docker" "start" "-a" "8f2b19c4f42c83ae0602b939a0cce407ea05223e8dd987c042e054417da031c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "8f2b19c4f42c83ae0602b939a0cce407ea05223e8dd987c042e054417da031c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2b19c4f42c83ae0602b939a0cce407ea05223e8dd987c042e054417da031c1", kill_on_drop: false }`
[INFO] [stdout] 8f2b19c4f42c83ae0602b939a0cce407ea05223e8dd987c042e054417da031c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e505c1f448a47344f58fc2d960d53a7eefe3078794848195f7dd0db1e3f19d36
[INFO] running `Command { std: "docker" "start" "-a" "e505c1f448a47344f58fc2d960d53a7eefe3078794848195f7dd0db1e3f19d36", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.29s
[INFO] running `Command { std: "docker" "inspect" "e505c1f448a47344f58fc2d960d53a7eefe3078794848195f7dd0db1e3f19d36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e505c1f448a47344f58fc2d960d53a7eefe3078794848195f7dd0db1e3f19d36", kill_on_drop: false }`
[INFO] [stdout] e505c1f448a47344f58fc2d960d53a7eefe3078794848195f7dd0db1e3f19d36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5093ad118227c8aeb4c10e19d9cb59383b62de32897a873f91a31fe0f31fd551
[INFO] running `Command { std: "docker" "start" "-a" "5093ad118227c8aeb4c10e19d9cb59383b62de32897a873f91a31fe0f31fd551", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_playground-b28ce99b7fb6acf4)
[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" "5093ad118227c8aeb4c10e19d9cb59383b62de32897a873f91a31fe0f31fd551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5093ad118227c8aeb4c10e19d9cb59383b62de32897a873f91a31fe0f31fd551", kill_on_drop: false }`
[INFO] [stdout] 5093ad118227c8aeb4c10e19d9cb59383b62de32897a873f91a31fe0f31fd551