[INFO] cloning repository https://github.com/gpdoud/rust-error-handling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gpdoud/rust-error-handling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 848fc0eedb79802c433a7b8c816b87f58db43925
[INFO] testing gpdoud/rust-error-handling against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpdoud%2Frust-error-handling" "/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/gpdoud/rust-error-handling 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/gpdoud/rust-error-handling
[INFO] finished tweaking git repo https://github.com/gpdoud/rust-error-handling
[INFO] tweaked toml for git repo https://github.com/gpdoud/rust-error-handling written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/gpdoud/rust-error-handling 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] 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] 992ab60c7d792299904d58ee3a9b6c5609fba8a7b479bd7894f29d893ee1d98f
[INFO] running `Command { std: "docker" "start" "-a" "992ab60c7d792299904d58ee3a9b6c5609fba8a7b479bd7894f29d893ee1d98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "992ab60c7d792299904d58ee3a9b6c5609fba8a7b479bd7894f29d893ee1d98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992ab60c7d792299904d58ee3a9b6c5609fba8a7b479bd7894f29d893ee1d98f", kill_on_drop: false }`
[INFO] [stdout] 992ab60c7d792299904d58ee3a9b6c5609fba8a7b479bd7894f29d893ee1d98f
[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] 30ac9300bf568937ea45e020935f7cdccbdfe473266568401c44b2e525bf806b
[INFO] running `Command { std: "docker" "start" "-a" "30ac9300bf568937ea45e020935f7cdccbdfe473266568401c44b2e525bf806b", kill_on_drop: false }`
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "30ac9300bf568937ea45e020935f7cdccbdfe473266568401c44b2e525bf806b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ac9300bf568937ea45e020935f7cdccbdfe473266568401c44b2e525bf806b", kill_on_drop: false }`
[INFO] [stdout] 30ac9300bf568937ea45e020935f7cdccbdfe473266568401c44b2e525bf806b
[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] 1fe0e3369ed1c648f6558424ad15849fe59ccdd605b4990d1e35ca6e7f3fe419
[INFO] running `Command { std: "docker" "start" "-a" "1fe0e3369ed1c648f6558424ad15849fe59ccdd605b4990d1e35ca6e7f3fe419", kill_on_drop: false }`
[INFO] [stderr]    Compiling error_handling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "1fe0e3369ed1c648f6558424ad15849fe59ccdd605b4990d1e35ca6e7f3fe419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe0e3369ed1c648f6558424ad15849fe59ccdd605b4990d1e35ca6e7f3fe419", kill_on_drop: false }`
[INFO] [stdout] 1fe0e3369ed1c648f6558424ad15849fe59ccdd605b4990d1e35ca6e7f3fe419
[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] 69e924702369a908f27762872c0fb19d030cb4ad93931b6e7403082319e8dc3c
[INFO] running `Command { std: "docker" "start" "-a" "69e924702369a908f27762872c0fb19d030cb4ad93931b6e7403082319e8dc3c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/error_handling-20a3a8ac0534af95)
[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" "69e924702369a908f27762872c0fb19d030cb4ad93931b6e7403082319e8dc3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69e924702369a908f27762872c0fb19d030cb4ad93931b6e7403082319e8dc3c", kill_on_drop: false }`
[INFO] [stdout] 69e924702369a908f27762872c0fb19d030cb4ad93931b6e7403082319e8dc3c