[INFO] cloning repository https://github.com/aochagavia/optimization-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aochagavia/optimization-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Foptimization-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faochagavia%2Foptimization-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9c2193357d7c4b415cea01ed1242bad991d221e
[INFO] testing aochagavia/optimization-experiment 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%2Faochagavia%2Foptimization-experiment" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aochagavia/optimization-experiment 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/aochagavia/optimization-experiment
[INFO] finished tweaking git repo https://github.com/aochagavia/optimization-experiment
[INFO] tweaked toml for git repo https://github.com/aochagavia/optimization-experiment written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/aochagavia/optimization-experiment 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] fb2cafc4bb49a46211fd69709ae1952bd384b1f82ddd329a0a236a58caed5f5b
[INFO] running `Command { std: "docker" "start" "-a" "fb2cafc4bb49a46211fd69709ae1952bd384b1f82ddd329a0a236a58caed5f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb2cafc4bb49a46211fd69709ae1952bd384b1f82ddd329a0a236a58caed5f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2cafc4bb49a46211fd69709ae1952bd384b1f82ddd329a0a236a58caed5f5b", kill_on_drop: false }`
[INFO] [stdout] fb2cafc4bb49a46211fd69709ae1952bd384b1f82ddd329a0a236a58caed5f5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8ffe76d2e82b9d3026b91e69e143bf027243fa2fd0a8ee5f18b90043152c7de4
[INFO] running `Command { std: "docker" "start" "-a" "8ffe76d2e82b9d3026b91e69e143bf027243fa2fd0a8ee5f18b90043152c7de4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling optimize-z3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "8ffe76d2e82b9d3026b91e69e143bf027243fa2fd0a8ee5f18b90043152c7de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ffe76d2e82b9d3026b91e69e143bf027243fa2fd0a8ee5f18b90043152c7de4", kill_on_drop: false }`
[INFO] [stdout] 8ffe76d2e82b9d3026b91e69e143bf027243fa2fd0a8ee5f18b90043152c7de4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6023a1244950b8de92317311b85e0880ac8180ab8d36983a7a573cc682580b1c
[INFO] running `Command { std: "docker" "start" "-a" "6023a1244950b8de92317311b85e0880ac8180ab8d36983a7a573cc682580b1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling optimize-z3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "6023a1244950b8de92317311b85e0880ac8180ab8d36983a7a573cc682580b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6023a1244950b8de92317311b85e0880ac8180ab8d36983a7a573cc682580b1c", kill_on_drop: false }`
[INFO] [stdout] 6023a1244950b8de92317311b85e0880ac8180ab8d36983a7a573cc682580b1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 46fb40a26b6c2ed5f065bdcfb5bd5bd2eaf5145d238f92b6cd2fdaee2e9e68c3
[INFO] running `Command { std: "docker" "start" "-a" "46fb40a26b6c2ed5f065bdcfb5bd5bd2eaf5145d238f92b6cd2fdaee2e9e68c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optimize_z3-d743394c8b17675a)
[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" "46fb40a26b6c2ed5f065bdcfb5bd5bd2eaf5145d238f92b6cd2fdaee2e9e68c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fb40a26b6c2ed5f065bdcfb5bd5bd2eaf5145d238f92b6cd2fdaee2e9e68c3", kill_on_drop: false }`
[INFO] [stdout] 46fb40a26b6c2ed5f065bdcfb5bd5bd2eaf5145d238f92b6cd2fdaee2e9e68c3