[INFO] fetching crate caesarlib 0.2.0...
[INFO] building caesarlib-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate caesarlib 0.2.0 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate caesarlib 0.2.0 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 crates.io crate caesarlib 0.2.0
[INFO] finished tweaking crates.io crate caesarlib 0.2.0
[INFO] tweaked toml for crates.io crate caesarlib 0.2.0 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] b48e7198327672b5f91df7c03398d418c071722db2abe1897e9a5b90302b185d
[INFO] running `Command { std: "docker" "start" "-a" "b48e7198327672b5f91df7c03398d418c071722db2abe1897e9a5b90302b185d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b48e7198327672b5f91df7c03398d418c071722db2abe1897e9a5b90302b185d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b48e7198327672b5f91df7c03398d418c071722db2abe1897e9a5b90302b185d", kill_on_drop: false }`
[INFO] [stdout] b48e7198327672b5f91df7c03398d418c071722db2abe1897e9a5b90302b185d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 190e2ba7450afd50e832fe10b812451f3a163509b3439d9f860a03dd2fd6c0e1
[INFO] running `Command { std: "docker" "start" "-a" "190e2ba7450afd50e832fe10b812451f3a163509b3439d9f860a03dd2fd6c0e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling caesarlib v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.96s
[INFO] running `Command { std: "docker" "inspect" "190e2ba7450afd50e832fe10b812451f3a163509b3439d9f860a03dd2fd6c0e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190e2ba7450afd50e832fe10b812451f3a163509b3439d9f860a03dd2fd6c0e1", kill_on_drop: false }`
[INFO] [stdout] 190e2ba7450afd50e832fe10b812451f3a163509b3439d9f860a03dd2fd6c0e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] b7ed05a14e226fa4f4fee6c5d7c52dc25086b3a97fc80d0e4f98192dd05ba4b5
[INFO] running `Command { std: "docker" "start" "-a" "b7ed05a14e226fa4f4fee6c5d7c52dc25086b3a97fc80d0e4f98192dd05ba4b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling caesarlib v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b7ed05a14e226fa4f4fee6c5d7c52dc25086b3a97fc80d0e4f98192dd05ba4b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ed05a14e226fa4f4fee6c5d7c52dc25086b3a97fc80d0e4f98192dd05ba4b5", kill_on_drop: false }`
[INFO] [stdout] b7ed05a14e226fa4f4fee6c5d7c52dc25086b3a97fc80d0e4f98192dd05ba4b5