[INFO] fetching crate arcon_spec 0.1.3...
[INFO] testing arcon_spec-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arcon_spec 0.1.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate arcon_spec 0.1.3 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_spec 0.1.3
[INFO] finished tweaking crates.io crate arcon_spec 0.1.3
[INFO] tweaked toml for crates.io crate arcon_spec 0.1.3 written to /workspace/builds/worker-12/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] 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] cd692ad0305cefb2fe27259ff851c33068d4feabe929e091f8703a28f2cc776b
[INFO] running `Command { std: "docker" "start" "-a" "cd692ad0305cefb2fe27259ff851c33068d4feabe929e091f8703a28f2cc776b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd692ad0305cefb2fe27259ff851c33068d4feabe929e091f8703a28f2cc776b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd692ad0305cefb2fe27259ff851c33068d4feabe929e091f8703a28f2cc776b", kill_on_drop: false }`
[INFO] [stdout] cd692ad0305cefb2fe27259ff851c33068d4feabe929e091f8703a28f2cc776b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 14856212b5a774636e73ecf674b7ec2b4f421521dbe4caae5498b8af6eb7d4a5
[INFO] running `Command { std: "docker" "start" "-a" "14856212b5a774636e73ecf674b7ec2b4f421521dbe4caae5498b8af6eb7d4a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling arcon_spec v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.11s
[INFO] running `Command { std: "docker" "inspect" "14856212b5a774636e73ecf674b7ec2b4f421521dbe4caae5498b8af6eb7d4a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14856212b5a774636e73ecf674b7ec2b4f421521dbe4caae5498b8af6eb7d4a5", kill_on_drop: false }`
[INFO] [stdout] 14856212b5a774636e73ecf674b7ec2b4f421521dbe4caae5498b8af6eb7d4a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 9c42a37dee9b31ddc21b38106a5e3ec08345282a7c238abcaf6ce16b48e044ca
[INFO] running `Command { std: "docker" "start" "-a" "9c42a37dee9b31ddc21b38106a5e3ec08345282a7c238abcaf6ce16b48e044ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling arcon_spec v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.06s
[INFO] running `Command { std: "docker" "inspect" "9c42a37dee9b31ddc21b38106a5e3ec08345282a7c238abcaf6ce16b48e044ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c42a37dee9b31ddc21b38106a5e3ec08345282a7c238abcaf6ce16b48e044ca", kill_on_drop: false }`
[INFO] [stdout] 9c42a37dee9b31ddc21b38106a5e3ec08345282a7c238abcaf6ce16b48e044ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] e7c1bbbc068b4b699f0ec4e9985a5dfbab2d8e9d247c27cec7f30e1fee084e49
[INFO] running `Command { std: "docker" "start" "-a" "e7c1bbbc068b4b699f0ec4e9985a5dfbab2d8e9d247c27cec7f30e1fee084e49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arcon_spec-fb77921eca2def1b)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::arc_spec_bytes_test ... ok
[INFO] [stdout] test tests::arc_spec_string_test ... ok
[INFO] [stdout] test tests::arc_spec_file_test ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arcon_spec
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "e7c1bbbc068b4b699f0ec4e9985a5dfbab2d8e9d247c27cec7f30e1fee084e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c1bbbc068b4b699f0ec4e9985a5dfbab2d8e9d247c27cec7f30e1fee084e49", kill_on_drop: false }`
[INFO] [stdout] e7c1bbbc068b4b699f0ec4e9985a5dfbab2d8e9d247c27cec7f30e1fee084e49