[INFO] cloning repository https://github.com/joseluisq/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joseluisq/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoseluisq%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoseluisq%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3eb6246822b0a7e1264387138c7ef67a505bfc62
[INFO] testing joseluisq/rust-learning against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoseluisq%2Frust-learning" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joseluisq/rust-learning 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/joseluisq/rust-learning
[INFO] finished tweaking git repo https://github.com/joseluisq/rust-learning
[INFO] tweaked toml for git repo https://github.com/joseluisq/rust-learning written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/joseluisq/rust-learning 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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 8ff85f9a451280fece886deda8868ec9434e0b78a8ddfda58333447bb2f5324a
[INFO] running `Command { std: "docker" "start" "-a" "8ff85f9a451280fece886deda8868ec9434e0b78a8ddfda58333447bb2f5324a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ff85f9a451280fece886deda8868ec9434e0b78a8ddfda58333447bb2f5324a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ff85f9a451280fece886deda8868ec9434e0b78a8ddfda58333447bb2f5324a", kill_on_drop: false }`
[INFO] [stdout] 8ff85f9a451280fece886deda8868ec9434e0b78a8ddfda58333447bb2f5324a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] af9267581272d73a5be216a24d8ec383d075be7437d499a90883500374b53d06
[INFO] running `Command { std: "docker" "start" "-a" "af9267581272d73a5be216a24d8ec383d075be7437d499a90883500374b53d06", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "af9267581272d73a5be216a24d8ec383d075be7437d499a90883500374b53d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af9267581272d73a5be216a24d8ec383d075be7437d499a90883500374b53d06", kill_on_drop: false }`
[INFO] [stdout] af9267581272d73a5be216a24d8ec383d075be7437d499a90883500374b53d06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 5c6a5fe2a44908019bee24d5ee6e58fc0101b5a6db075db4e7d268b6d4c0c3f5
[INFO] running `Command { std: "docker" "start" "-a" "5c6a5fe2a44908019bee24d5ee6e58fc0101b5a6db075db4e7d268b6d4c0c3f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "5c6a5fe2a44908019bee24d5ee6e58fc0101b5a6db075db4e7d268b6d4c0c3f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6a5fe2a44908019bee24d5ee6e58fc0101b5a6db075db4e7d268b6d4c0c3f5", kill_on_drop: false }`
[INFO] [stdout] 5c6a5fe2a44908019bee24d5ee6e58fc0101b5a6db075db4e7d268b6d4c0c3f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 48e3930d92cb435368945adb48d7d0db67f09d131785b0766f499cfcc6edea6e
[INFO] running `Command { std: "docker" "start" "-a" "48e3930d92cb435368945adb48d7d0db67f09d131785b0766f499cfcc6edea6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_learning-6bcbcd8ed1899be7)
[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" "48e3930d92cb435368945adb48d7d0db67f09d131785b0766f499cfcc6edea6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e3930d92cb435368945adb48d7d0db67f09d131785b0766f499cfcc6edea6e", kill_on_drop: false }`
[INFO] [stdout] 48e3930d92cb435368945adb48d7d0db67f09d131785b0766f499cfcc6edea6e