[INFO] cloning repository https://github.com/SeanMcP/rust_hello-world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SeanMcP/rust_hello-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeanMcP%2Frust_hello-world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeanMcP%2Frust_hello-world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 794b3c1317508410cd59a226d7639b52c81c3b83
[INFO] testing SeanMcP/rust_hello-world against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSeanMcP%2Frust_hello-world" "/workspace/builds/worker-81/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-81/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SeanMcP/rust_hello-world 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/SeanMcP/rust_hello-world
[INFO] finished tweaking git repo https://github.com/SeanMcP/rust_hello-world
[INFO] tweaked toml for git repo https://github.com/SeanMcP/rust_hello-world written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] crate git repo https://github.com/SeanMcP/rust_hello-world 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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] aee71a3ec05a719508d466bb2d795128721e2f3f07956c898757c48ea41a073c
[INFO] running `Command { std: "docker" "start" "-a" "aee71a3ec05a719508d466bb2d795128721e2f3f07956c898757c48ea41a073c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee71a3ec05a719508d466bb2d795128721e2f3f07956c898757c48ea41a073c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee71a3ec05a719508d466bb2d795128721e2f3f07956c898757c48ea41a073c", kill_on_drop: false }`
[INFO] [stdout] aee71a3ec05a719508d466bb2d795128721e2f3f07956c898757c48ea41a073c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 9dce62a78725bffdd66d06ff5065c014cb9488c1ca23eaa2bd13297d0dad80a3
[INFO] running `Command { std: "docker" "start" "-a" "9dce62a78725bffdd66d06ff5065c014cb9488c1ca23eaa2bd13297d0dad80a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "9dce62a78725bffdd66d06ff5065c014cb9488c1ca23eaa2bd13297d0dad80a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dce62a78725bffdd66d06ff5065c014cb9488c1ca23eaa2bd13297d0dad80a3", kill_on_drop: false }`
[INFO] [stdout] 9dce62a78725bffdd66d06ff5065c014cb9488c1ca23eaa2bd13297d0dad80a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 141b65a74d4cf0cf4c26fe6c53a5bc1b099d25b2ed5af9c1f627ee4c90659daf
[INFO] running `Command { std: "docker" "start" "-a" "141b65a74d4cf0cf4c26fe6c53a5bc1b099d25b2ed5af9c1f627ee4c90659daf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "141b65a74d4cf0cf4c26fe6c53a5bc1b099d25b2ed5af9c1f627ee4c90659daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "141b65a74d4cf0cf4c26fe6c53a5bc1b099d25b2ed5af9c1f627ee4c90659daf", kill_on_drop: false }`
[INFO] [stdout] 141b65a74d4cf0cf4c26fe6c53a5bc1b099d25b2ed5af9c1f627ee4c90659daf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 8ae26625794936bcf57cd44e8bb4e4195b7cb4cf2c955042581d8cbd66bb85ad
[INFO] running `Command { std: "docker" "start" "-a" "8ae26625794936bcf57cd44e8bb4e4195b7cb4cf2c955042581d8cbd66bb85ad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-f04eb0d6f2262a8c)
[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" "8ae26625794936bcf57cd44e8bb4e4195b7cb4cf2c955042581d8cbd66bb85ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae26625794936bcf57cd44e8bb4e4195b7cb4cf2c955042581d8cbd66bb85ad", kill_on_drop: false }`
[INFO] [stdout] 8ae26625794936bcf57cd44e8bb4e4195b7cb4cf2c955042581d8cbd66bb85ad