[INFO] cloning repository https://github.com/mingcaixiao/hello-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingcaixiao/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingcaixiao%2Fhello-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingcaixiao%2Fhello-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20662c33de35df13762a1314557e890e1cae1685
[INFO] testing mingcaixiao/hello-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingcaixiao%2Fhello-rust" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mingcaixiao/hello-rust 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/mingcaixiao/hello-rust
[INFO] finished tweaking git repo https://github.com/mingcaixiao/hello-rust
[INFO] tweaked toml for git repo https://github.com/mingcaixiao/hello-rust written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/mingcaixiao/hello-rust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] 9405c4a3411db984d1d5adbc662d0673ef9dd7c0431d58ee6ec8283ea8171927
[INFO] running `Command { std: "docker" "start" "-a" "9405c4a3411db984d1d5adbc662d0673ef9dd7c0431d58ee6ec8283ea8171927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9405c4a3411db984d1d5adbc662d0673ef9dd7c0431d58ee6ec8283ea8171927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9405c4a3411db984d1d5adbc662d0673ef9dd7c0431d58ee6ec8283ea8171927", kill_on_drop: false }`
[INFO] [stdout] 9405c4a3411db984d1d5adbc662d0673ef9dd7c0431d58ee6ec8283ea8171927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] f4c2d56c2ea316c316ec9f25b345bfb2531a72c4a27cac0960cf29f0acd74cde
[INFO] running `Command { std: "docker" "start" "-a" "f4c2d56c2ea316c316ec9f25b345bfb2531a72c4a27cac0960cf29f0acd74cde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `Command { std: "docker" "inspect" "f4c2d56c2ea316c316ec9f25b345bfb2531a72c4a27cac0960cf29f0acd74cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c2d56c2ea316c316ec9f25b345bfb2531a72c4a27cac0960cf29f0acd74cde", kill_on_drop: false }`
[INFO] [stdout] f4c2d56c2ea316c316ec9f25b345bfb2531a72c4a27cac0960cf29f0acd74cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] b414e559c22ca03f625887d96badf8f2d88c95602c441c3d6e8985fec8d865a5
[INFO] running `Command { std: "docker" "start" "-a" "b414e559c22ca03f625887d96badf8f2d88c95602c441c3d6e8985fec8d865a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.43s
[INFO] running `Command { std: "docker" "inspect" "b414e559c22ca03f625887d96badf8f2d88c95602c441c3d6e8985fec8d865a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b414e559c22ca03f625887d96badf8f2d88c95602c441c3d6e8985fec8d865a5", kill_on_drop: false }`
[INFO] [stdout] b414e559c22ca03f625887d96badf8f2d88c95602c441c3d6e8985fec8d865a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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] b673868af4fd9dbeddf63cabfe0b2f4ddd79180a66ca3c03de8a5736a8a67944
[INFO] running `Command { std: "docker" "start" "-a" "b673868af4fd9dbeddf63cabfe0b2f4ddd79180a66ca3c03de8a5736a8a67944", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.73s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_rust-9d3249ed6a39a50c)
[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" "b673868af4fd9dbeddf63cabfe0b2f4ddd79180a66ca3c03de8a5736a8a67944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b673868af4fd9dbeddf63cabfe0b2f4ddd79180a66ca3c03de8a5736a8a67944", kill_on_drop: false }`
[INFO] [stdout] b673868af4fd9dbeddf63cabfe0b2f4ddd79180a66ca3c03de8a5736a8a67944