[INFO] cloning repository https://github.com/jorgepacheco/rust_for_dummies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jorgepacheco/rust_for_dummies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjorgepacheco%2Frust_for_dummies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjorgepacheco%2Frust_for_dummies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10cf6d932354757acb9a06d634c0d805373dad00
[INFO] testing jorgepacheco/rust_for_dummies against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjorgepacheco%2Frust_for_dummies" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jorgepacheco/rust_for_dummies 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/jorgepacheco/rust_for_dummies
[INFO] finished tweaking git repo https://github.com/jorgepacheco/rust_for_dummies
[INFO] tweaked toml for git repo https://github.com/jorgepacheco/rust_for_dummies written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/jorgepacheco/rust_for_dummies 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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 32a870bca05e1410590eaee7fc81adbbf29fd7ad9bba6eb4b94489b1a73fa3da
[INFO] running `Command { std: "docker" "start" "-a" "32a870bca05e1410590eaee7fc81adbbf29fd7ad9bba6eb4b94489b1a73fa3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32a870bca05e1410590eaee7fc81adbbf29fd7ad9bba6eb4b94489b1a73fa3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a870bca05e1410590eaee7fc81adbbf29fd7ad9bba6eb4b94489b1a73fa3da", kill_on_drop: false }`
[INFO] [stdout] 32a870bca05e1410590eaee7fc81adbbf29fd7ad9bba6eb4b94489b1a73fa3da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 4df4a3f3a2b8a9a075cbf32d0bc322aca378e7d36b8a7b8e7e0805d5e2ff0744
[INFO] running `Command { std: "docker" "start" "-a" "4df4a3f3a2b8a9a075cbf32d0bc322aca378e7d36b8a7b8e7e0805d5e2ff0744", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "4df4a3f3a2b8a9a075cbf32d0bc322aca378e7d36b8a7b8e7e0805d5e2ff0744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df4a3f3a2b8a9a075cbf32d0bc322aca378e7d36b8a7b8e7e0805d5e2ff0744", kill_on_drop: false }`
[INFO] [stdout] 4df4a3f3a2b8a9a075cbf32d0bc322aca378e7d36b8a7b8e7e0805d5e2ff0744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 8fe158c13de747fb403c38ecb1cebc448fee070cb61c8c6faa0717087e3d4d75
[INFO] running `Command { std: "docker" "start" "-a" "8fe158c13de747fb403c38ecb1cebc448fee070cb61c8c6faa0717087e3d4d75", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "8fe158c13de747fb403c38ecb1cebc448fee070cb61c8c6faa0717087e3d4d75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe158c13de747fb403c38ecb1cebc448fee070cb61c8c6faa0717087e3d4d75", kill_on_drop: false }`
[INFO] [stdout] 8fe158c13de747fb403c38ecb1cebc448fee070cb61c8c6faa0717087e3d4d75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 31457ba02991ffae2584dbffd5b7f1fc105e8fc80ab62c4aa391cabc85ab6048
[INFO] running `Command { std: "docker" "start" "-a" "31457ba02991ffae2584dbffd5b7f1fc105e8fc80ab62c4aa391cabc85ab6048", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-b351696fbfe0d03e)
[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" "31457ba02991ffae2584dbffd5b7f1fc105e8fc80ab62c4aa391cabc85ab6048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31457ba02991ffae2584dbffd5b7f1fc105e8fc80ab62c4aa391cabc85ab6048", kill_on_drop: false }`
[INFO] [stdout] 31457ba02991ffae2584dbffd5b7f1fc105e8fc80ab62c4aa391cabc85ab6048