[INFO] cloning repository https://github.com/mahabubulhasan/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahabubulhasan/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahabubulhasan%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahabubulhasan%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ebaa6c3f0231e457d754a4f1988d3a806a0e541
[INFO] testing mahabubulhasan/rust-practice against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahabubulhasan%2Frust-practice" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mahabubulhasan/rust-practice on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mahabubulhasan/rust-practice
[INFO] finished tweaking git repo https://github.com/mahabubulhasan/rust-practice
[INFO] tweaked toml for git repo https://github.com/mahabubulhasan/rust-practice written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mahabubulhasan/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4399f5988dece87a183ea4efec166f22323f60aa96fb11b58da2d84f40a89d80
[INFO] running `Command { std: "docker" "start" "-a" "4399f5988dece87a183ea4efec166f22323f60aa96fb11b58da2d84f40a89d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4399f5988dece87a183ea4efec166f22323f60aa96fb11b58da2d84f40a89d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4399f5988dece87a183ea4efec166f22323f60aa96fb11b58da2d84f40a89d80", kill_on_drop: false }`
[INFO] [stdout] 4399f5988dece87a183ea4efec166f22323f60aa96fb11b58da2d84f40a89d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56de6481e853d1e3012f94518be7717286b3af32b5b4d7a9e4f1742b2bb22984
[INFO] running `Command { std: "docker" "start" "-a" "56de6481e853d1e3012f94518be7717286b3af32b5b4d7a9e4f1742b2bb22984", kill_on_drop: false }`
[INFO] [stderr]    Compiling patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "56de6481e853d1e3012f94518be7717286b3af32b5b4d7a9e4f1742b2bb22984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56de6481e853d1e3012f94518be7717286b3af32b5b4d7a9e4f1742b2bb22984", kill_on_drop: false }`
[INFO] [stdout] 56de6481e853d1e3012f94518be7717286b3af32b5b4d7a9e4f1742b2bb22984
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26aee5e31fa8b473628218d98888ef1f2cca74a329131fe3751b163015e75dca
[INFO] running `Command { std: "docker" "start" "-a" "26aee5e31fa8b473628218d98888ef1f2cca74a329131fe3751b163015e75dca", kill_on_drop: false }`
[INFO] [stderr]    Compiling patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "26aee5e31fa8b473628218d98888ef1f2cca74a329131fe3751b163015e75dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26aee5e31fa8b473628218d98888ef1f2cca74a329131fe3751b163015e75dca", kill_on_drop: false }`
[INFO] [stdout] 26aee5e31fa8b473628218d98888ef1f2cca74a329131fe3751b163015e75dca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 83b33efb4ff797273139f4b826aede9126c88c546e07e06d7a821db8f70b86f9
[INFO] running `Command { std: "docker" "start" "-a" "83b33efb4ff797273139f4b826aede9126c88c546e07e06d7a821db8f70b86f9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/patterns-10fe3ea24bb4cb20)
[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" "83b33efb4ff797273139f4b826aede9126c88c546e07e06d7a821db8f70b86f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b33efb4ff797273139f4b826aede9126c88c546e07e06d7a821db8f70b86f9", kill_on_drop: false }`
[INFO] [stdout] 83b33efb4ff797273139f4b826aede9126c88c546e07e06d7a821db8f70b86f9