[INFO] cloning repository https://github.com/prassee/rust-udemy-assignments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prassee/rust-udemy-assignments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprassee%2Frust-udemy-assignments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprassee%2Frust-udemy-assignments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c3409c3882019a1172e4b353ce06c31e9e1f4eb
[INFO] testing prassee/rust-udemy-assignments against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprassee%2Frust-udemy-assignments" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prassee/rust-udemy-assignments 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/prassee/rust-udemy-assignments
[INFO] finished tweaking git repo https://github.com/prassee/rust-udemy-assignments
[INFO] tweaked toml for git repo https://github.com/prassee/rust-udemy-assignments written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate git repo https://github.com/prassee/rust-udemy-assignments 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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 31253d726184ab4c8fe6650468dabba6b85d945620e7f3f2749826fb2b338d42
[INFO] running `Command { std: "docker" "start" "-a" "31253d726184ab4c8fe6650468dabba6b85d945620e7f3f2749826fb2b338d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31253d726184ab4c8fe6650468dabba6b85d945620e7f3f2749826fb2b338d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31253d726184ab4c8fe6650468dabba6b85d945620e7f3f2749826fb2b338d42", kill_on_drop: false }`
[INFO] [stdout] 31253d726184ab4c8fe6650468dabba6b85d945620e7f3f2749826fb2b338d42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] f476393edc253dbdcbb51b05a01881adfd858582d484243a95f2241480f02e77
[INFO] running `Command { std: "docker" "start" "-a" "f476393edc253dbdcbb51b05a01881adfd858582d484243a95f2241480f02e77", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_udemy_excer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "f476393edc253dbdcbb51b05a01881adfd858582d484243a95f2241480f02e77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f476393edc253dbdcbb51b05a01881adfd858582d484243a95f2241480f02e77", kill_on_drop: false }`
[INFO] [stdout] f476393edc253dbdcbb51b05a01881adfd858582d484243a95f2241480f02e77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 13c6c92e81a06b41ce66bd70ff338a8fd6e0f53b88ebe14a0977a0f958ed2f67
[INFO] running `Command { std: "docker" "start" "-a" "13c6c92e81a06b41ce66bd70ff338a8fd6e0f53b88ebe14a0977a0f958ed2f67", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_udemy_excer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.86s
[INFO] running `Command { std: "docker" "inspect" "13c6c92e81a06b41ce66bd70ff338a8fd6e0f53b88ebe14a0977a0f958ed2f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c6c92e81a06b41ce66bd70ff338a8fd6e0f53b88ebe14a0977a0f958ed2f67", kill_on_drop: false }`
[INFO] [stdout] 13c6c92e81a06b41ce66bd70ff338a8fd6e0f53b88ebe14a0977a0f958ed2f67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] e47bd1bed4cd0e8862ba2e965f7a1e8b164db61b5bb57be5e61d266cc90a3eab
[INFO] running `Command { std: "docker" "start" "-a" "e47bd1bed4cd0e8862ba2e965f7a1e8b164db61b5bb57be5e61d266cc90a3eab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_udemy_excer-8106776713a63a62)
[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" "e47bd1bed4cd0e8862ba2e965f7a1e8b164db61b5bb57be5e61d266cc90a3eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47bd1bed4cd0e8862ba2e965f7a1e8b164db61b5bb57be5e61d266cc90a3eab", kill_on_drop: false }`
[INFO] [stdout] e47bd1bed4cd0e8862ba2e965f7a1e8b164db61b5bb57be5e61d266cc90a3eab