[INFO] fetching crate helloworld 0.1.0...
[INFO] testing helloworld-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate helloworld 0.1.0 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate helloworld 0.1.0 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 crates.io crate helloworld 0.1.0
[INFO] finished tweaking crates.io crate helloworld 0.1.0
[INFO] tweaked toml for crates.io crate helloworld 0.1.0 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate crates.io crate helloworld 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 8ca62ce558817b213af0263b81fa7478936d6828a24195dde0e9c7306d61ed9b
[INFO] running `Command { std: "docker" "start" "-a" "8ca62ce558817b213af0263b81fa7478936d6828a24195dde0e9c7306d61ed9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca62ce558817b213af0263b81fa7478936d6828a24195dde0e9c7306d61ed9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca62ce558817b213af0263b81fa7478936d6828a24195dde0e9c7306d61ed9b", kill_on_drop: false }`
[INFO] [stdout] 8ca62ce558817b213af0263b81fa7478936d6828a24195dde0e9c7306d61ed9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] adb3e2a0ac5f6c5245a862ce5e1576d6051e3a480c0594213782bf8ffea14d6c
[INFO] running `Command { std: "docker" "start" "-a" "adb3e2a0ac5f6c5245a862ce5e1576d6051e3a480c0594213782bf8ffea14d6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling helloworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "adb3e2a0ac5f6c5245a862ce5e1576d6051e3a480c0594213782bf8ffea14d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb3e2a0ac5f6c5245a862ce5e1576d6051e3a480c0594213782bf8ffea14d6c", kill_on_drop: false }`
[INFO] [stdout] adb3e2a0ac5f6c5245a862ce5e1576d6051e3a480c0594213782bf8ffea14d6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] e177eabf18afa78e88506db57459146549d82bc6b077f22338560abae02a76dd
[INFO] running `Command { std: "docker" "start" "-a" "e177eabf18afa78e88506db57459146549d82bc6b077f22338560abae02a76dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling helloworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "e177eabf18afa78e88506db57459146549d82bc6b077f22338560abae02a76dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e177eabf18afa78e88506db57459146549d82bc6b077f22338560abae02a76dd", kill_on_drop: false }`
[INFO] [stdout] e177eabf18afa78e88506db57459146549d82bc6b077f22338560abae02a76dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 0e7fe7acb2795c77a8ce276da922048d53e4b2b7e6cb26d2c9028e752592e72e
[INFO] running `Command { std: "docker" "start" "-a" "0e7fe7acb2795c77a8ce276da922048d53e4b2b7e6cb26d2c9028e752592e72e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/helloworld-b06c9b9b5d7b81c7)
[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" "0e7fe7acb2795c77a8ce276da922048d53e4b2b7e6cb26d2c9028e752592e72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7fe7acb2795c77a8ce276da922048d53e4b2b7e6cb26d2c9028e752592e72e", kill_on_drop: false }`
[INFO] [stdout] 0e7fe7acb2795c77a8ce276da922048d53e4b2b7e6cb26d2c9028e752592e72e