[INFO] fetching crate arcon_util 0.2.0...
[INFO] testing arcon_util-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate arcon_util 0.2.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate arcon_util 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arcon_util 0.2.0
[INFO] finished tweaking crates.io crate arcon_util 0.2.0
[INFO] tweaked toml for crates.io crate arcon_util 0.2.0 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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" "+1.59.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mur3 v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5137c27a2cf116fd479bc5734e46e68aefb75940bbfed6fadba4eaef07fe7778
[INFO] running `Command { std: "docker" "start" "-a" "5137c27a2cf116fd479bc5734e46e68aefb75940bbfed6fadba4eaef07fe7778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5137c27a2cf116fd479bc5734e46e68aefb75940bbfed6fadba4eaef07fe7778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5137c27a2cf116fd479bc5734e46e68aefb75940bbfed6fadba4eaef07fe7778", kill_on_drop: false }`
[INFO] [stdout] 5137c27a2cf116fd479bc5734e46e68aefb75940bbfed6fadba4eaef07fe7778
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25dcb66a2a055cbf6d142868a8f213f29f2dbf8bd57a165ac770e61e22e14501
[INFO] running `Command { std: "docker" "start" "-a" "25dcb66a2a055cbf6d142868a8f213f29f2dbf8bd57a165ac770e61e22e14501", kill_on_drop: false }`
[INFO] [stderr]    Compiling arcon_util v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "25dcb66a2a055cbf6d142868a8f213f29f2dbf8bd57a165ac770e61e22e14501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25dcb66a2a055cbf6d142868a8f213f29f2dbf8bd57a165ac770e61e22e14501", kill_on_drop: false }`
[INFO] [stdout] 25dcb66a2a055cbf6d142868a8f213f29f2dbf8bd57a165ac770e61e22e14501
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 562cc67c3511fceedb39c1f2e94c1dc283f21c3e9547711f4be0b9c305613015
[INFO] running `Command { std: "docker" "start" "-a" "562cc67c3511fceedb39c1f2e94c1dc283f21c3e9547711f4be0b9c305613015", kill_on_drop: false }`
[INFO] [stderr]    Compiling arcon_util v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "562cc67c3511fceedb39c1f2e94c1dc283f21c3e9547711f4be0b9c305613015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "562cc67c3511fceedb39c1f2e94c1dc283f21c3e9547711f4be0b9c305613015", kill_on_drop: false }`
[INFO] [stdout] 562cc67c3511fceedb39c1f2e94c1dc283f21c3e9547711f4be0b9c305613015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c46b54dd4acb2e77db8870d23d441910efa7b846c0074eb4ee42df7947555498
[INFO] running `Command { std: "docker" "start" "-a" "c46b54dd4acb2e77db8870d23d441910efa7b846c0074eb4ee42df7947555498", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arcon_util-1bbbc82ae2b0e4ef)
[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]    Doc-tests arcon_util
[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" "c46b54dd4acb2e77db8870d23d441910efa7b846c0074eb4ee42df7947555498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c46b54dd4acb2e77db8870d23d441910efa7b846c0074eb4ee42df7947555498", kill_on_drop: false }`
[INFO] [stdout] c46b54dd4acb2e77db8870d23d441910efa7b846c0074eb4ee42df7947555498