[INFO] cloning repository https://github.com/yimmt/rustbookchapter3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yimmt/rustbookchapter3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyimmt%2Frustbookchapter3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyimmt%2Frustbookchapter3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1d81ef187cd730fe776e1f25e913d9439c30a0b
[INFO] testing yimmt/rustbookchapter3 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%2Fyimmt%2Frustbookchapter3" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yimmt/rustbookchapter3 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/yimmt/rustbookchapter3
[INFO] finished tweaking git repo https://github.com/yimmt/rustbookchapter3
[INFO] tweaked toml for git repo https://github.com/yimmt/rustbookchapter3 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/yimmt/rustbookchapter3 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] [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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 7ae478243f73fe846be99f7e0a62b5c5d7be7e24470f12206efddfae4493fa38
[INFO] running `Command { std: "docker" "start" "-a" "7ae478243f73fe846be99f7e0a62b5c5d7be7e24470f12206efddfae4493fa38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ae478243f73fe846be99f7e0a62b5c5d7be7e24470f12206efddfae4493fa38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae478243f73fe846be99f7e0a62b5c5d7be7e24470f12206efddfae4493fa38", kill_on_drop: false }`
[INFO] [stdout] 7ae478243f73fe846be99f7e0a62b5c5d7be7e24470f12206efddfae4493fa38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 20673cb62cb665a8f6f98a11c84a4d3acc43f178abb4efcaffd2da6d48987c56
[INFO] running `Command { std: "docker" "start" "-a" "20673cb62cb665a8f6f98a11c84a4d3acc43f178abb4efcaffd2da6d48987c56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustbookchapter3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "20673cb62cb665a8f6f98a11c84a4d3acc43f178abb4efcaffd2da6d48987c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20673cb62cb665a8f6f98a11c84a4d3acc43f178abb4efcaffd2da6d48987c56", kill_on_drop: false }`
[INFO] [stdout] 20673cb62cb665a8f6f98a11c84a4d3acc43f178abb4efcaffd2da6d48987c56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 1953450f5d192b5dcd13927c014dc6cebafc0792ab60cb08b969c3513cb9432d
[INFO] running `Command { std: "docker" "start" "-a" "1953450f5d192b5dcd13927c014dc6cebafc0792ab60cb08b969c3513cb9432d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbookchapter3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "1953450f5d192b5dcd13927c014dc6cebafc0792ab60cb08b969c3513cb9432d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1953450f5d192b5dcd13927c014dc6cebafc0792ab60cb08b969c3513cb9432d", kill_on_drop: false }`
[INFO] [stdout] 1953450f5d192b5dcd13927c014dc6cebafc0792ab60cb08b969c3513cb9432d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] ba62ddfd6f3495fd6c7aafdd127def54d2ec741446cecdcf79325a6a9d1b9a30
[INFO] running `Command { std: "docker" "start" "-a" "ba62ddfd6f3495fd6c7aafdd127def54d2ec741446cecdcf79325a6a9d1b9a30", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustbookchapter3-968ac8cfe51f65ae)
[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" "ba62ddfd6f3495fd6c7aafdd127def54d2ec741446cecdcf79325a6a9d1b9a30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba62ddfd6f3495fd6c7aafdd127def54d2ec741446cecdcf79325a6a9d1b9a30", kill_on_drop: false }`
[INFO] [stdout] ba62ddfd6f3495fd6c7aafdd127def54d2ec741446cecdcf79325a6a9d1b9a30