[INFO] cloning repository https://github.com/Luke-Draper/DailyProgrammingChallenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Luke-Draper/DailyProgrammingChallenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2FDailyProgrammingChallenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2FDailyProgrammingChallenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 883a5c904c57401420474106330864c69ecdd570
[INFO] testing Luke-Draper/DailyProgrammingChallenges against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuke-Draper%2FDailyProgrammingChallenges" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Luke-Draper/DailyProgrammingChallenges 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/Luke-Draper/DailyProgrammingChallenges
[INFO] finished tweaking git repo https://github.com/Luke-Draper/DailyProgrammingChallenges
[INFO] tweaked toml for git repo https://github.com/Luke-Draper/DailyProgrammingChallenges written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate git repo https://github.com/Luke-Draper/DailyProgrammingChallenges 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-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] 3dacfbd292f3cbe8b4d6904d79bf2640dc56c4b2ad99890b6facfeb99c70bbd3
[INFO] running `Command { std: "docker" "start" "-a" "3dacfbd292f3cbe8b4d6904d79bf2640dc56c4b2ad99890b6facfeb99c70bbd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dacfbd292f3cbe8b4d6904d79bf2640dc56c4b2ad99890b6facfeb99c70bbd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dacfbd292f3cbe8b4d6904d79bf2640dc56c4b2ad99890b6facfeb99c70bbd3", kill_on_drop: false }`
[INFO] [stdout] 3dacfbd292f3cbe8b4d6904d79bf2640dc56c4b2ad99890b6facfeb99c70bbd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] 97455327cb378fbd7237c80f3309d8d992e813882f83056cd4f7cbc852a2a162
[INFO] running `Command { std: "docker" "start" "-a" "97455327cb378fbd7237c80f3309d8d992e813882f83056cd4f7cbc852a2a162", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling daily_programming_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.74s
[INFO] running `Command { std: "docker" "inspect" "97455327cb378fbd7237c80f3309d8d992e813882f83056cd4f7cbc852a2a162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97455327cb378fbd7237c80f3309d8d992e813882f83056cd4f7cbc852a2a162", kill_on_drop: false }`
[INFO] [stdout] 97455327cb378fbd7237c80f3309d8d992e813882f83056cd4f7cbc852a2a162
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] e46af03d7f8e53d573827b5c680cdf0a9c70b657e365b298e275c30fb07236d0
[INFO] running `Command { std: "docker" "start" "-a" "e46af03d7f8e53d573827b5c680cdf0a9c70b657e365b298e275c30fb07236d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling daily_programming_challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "e46af03d7f8e53d573827b5c680cdf0a9c70b657e365b298e275c30fb07236d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46af03d7f8e53d573827b5c680cdf0a9c70b657e365b298e275c30fb07236d0", kill_on_drop: false }`
[INFO] [stdout] e46af03d7f8e53d573827b5c680cdf0a9c70b657e365b298e275c30fb07236d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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] a182f5a0d2af68f8801dc9487f95f3f3f19599ebaba8233fd6edc8d3687d03b3
[INFO] running `Command { std: "docker" "start" "-a" "a182f5a0d2af68f8801dc9487f95f3f3f19599ebaba8233fd6edc8d3687d03b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/11_11_18-a2fb91eac3c8d433)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/daily_programming_challenges-bfbaa803178c62ff)
[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" "a182f5a0d2af68f8801dc9487f95f3f3f19599ebaba8233fd6edc8d3687d03b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a182f5a0d2af68f8801dc9487f95f3f3f19599ebaba8233fd6edc8d3687d03b3", kill_on_drop: false }`
[INFO] [stdout] a182f5a0d2af68f8801dc9487f95f3f3f19599ebaba8233fd6edc8d3687d03b3