[INFO] fetching crate arcon_build 0.2.0...
[INFO] testing arcon_build-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arcon_build 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate arcon_build 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 arcon_build 0.2.0
[INFO] finished tweaking crates.io crate arcon_build 0.2.0
[INFO] tweaked toml for crates.io crate arcon_build 0.2.0 written to /workspace/builds/worker-11/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 4e15502ec1929a16bb21e316c9415c24e29efd0f1d83d24b7b5a00f137a4c2f5
[INFO] running `Command { std: "docker" "start" "-a" "4e15502ec1929a16bb21e316c9415c24e29efd0f1d83d24b7b5a00f137a4c2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e15502ec1929a16bb21e316c9415c24e29efd0f1d83d24b7b5a00f137a4c2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e15502ec1929a16bb21e316c9415c24e29efd0f1d83d24b7b5a00f137a4c2f5", kill_on_drop: false }`
[INFO] [stdout] 4e15502ec1929a16bb21e316c9415c24e29efd0f1d83d24b7b5a00f137a4c2f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 3039f868aaca821883db637983ca3ca8b5db0ef0cf7f319ae0005d5c7db7007f
[INFO] running `Command { std: "docker" "start" "-a" "3039f868aaca821883db637983ca3ca8b5db0ef0cf7f319ae0005d5c7db7007f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling arcon_build v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "3039f868aaca821883db637983ca3ca8b5db0ef0cf7f319ae0005d5c7db7007f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3039f868aaca821883db637983ca3ca8b5db0ef0cf7f319ae0005d5c7db7007f", kill_on_drop: false }`
[INFO] [stdout] 3039f868aaca821883db637983ca3ca8b5db0ef0cf7f319ae0005d5c7db7007f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 8477c382917dcbfe0f8dea7885122d1a222eb6e5cf94ae0b706942a9f8bd0b5d
[INFO] running `Command { std: "docker" "start" "-a" "8477c382917dcbfe0f8dea7885122d1a222eb6e5cf94ae0b706942a9f8bd0b5d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling arcon_build v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "8477c382917dcbfe0f8dea7885122d1a222eb6e5cf94ae0b706942a9f8bd0b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8477c382917dcbfe0f8dea7885122d1a222eb6e5cf94ae0b706942a9f8bd0b5d", kill_on_drop: false }`
[INFO] [stdout] 8477c382917dcbfe0f8dea7885122d1a222eb6e5cf94ae0b706942a9f8bd0b5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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", kill_on_drop: false }`
[INFO] [stdout] a1ced96a4181a9aafdb80f24c358268ec4d33ceafcf94afa52fc1517952b83b9
[INFO] running `Command { std: "docker" "start" "-a" "a1ced96a4181a9aafdb80f24c358268ec4d33ceafcf94afa52fc1517952b83b9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arcon_build-3c1a901bfc3388c0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arcon_build
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 36) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a1ced96a4181a9aafdb80f24c358268ec4d33ceafcf94afa52fc1517952b83b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1ced96a4181a9aafdb80f24c358268ec4d33ceafcf94afa52fc1517952b83b9", kill_on_drop: false }`
[INFO] [stdout] a1ced96a4181a9aafdb80f24c358268ec4d33ceafcf94afa52fc1517952b83b9