[INFO] fetching crate piston_meta_search 0.19.0...
[INFO] testing piston_meta_search-0.19.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate piston_meta_search 0.19.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate piston_meta_search 0.19.0 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 piston_meta_search 0.19.0
[INFO] finished tweaking crates.io crate piston_meta_search 0.19.0
[INFO] tweaked toml for crates.io crate piston_meta_search 0.19.0 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 981645d694b7aa952c6e70943d71165d7f32adaabcbfc0f69d0eb6aeb6128a14
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "981645d694b7aa952c6e70943d71165d7f32adaabcbfc0f69d0eb6aeb6128a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "981645d694b7aa952c6e70943d71165d7f32adaabcbfc0f69d0eb6aeb6128a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981645d694b7aa952c6e70943d71165d7f32adaabcbfc0f69d0eb6aeb6128a14", kill_on_drop: false }`
[INFO] [stdout] 981645d694b7aa952c6e70943d71165d7f32adaabcbfc0f69d0eb6aeb6128a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c82bc4067e2841b305af1cc92592fc15279a55805678cca5c92341a1f6bc901b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c82bc4067e2841b305af1cc92592fc15279a55805678cca5c92341a1f6bc901b", kill_on_drop: false }`
[INFO] [stderr]    Compiling range v1.0.0
[INFO] [stderr]    Compiling read_token v1.0.0
[INFO] [stderr]    Compiling piston_meta v2.0.1
[INFO] [stderr]    Compiling piston_meta_search v0.19.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "c82bc4067e2841b305af1cc92592fc15279a55805678cca5c92341a1f6bc901b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c82bc4067e2841b305af1cc92592fc15279a55805678cca5c92341a1f6bc901b", kill_on_drop: false }`
[INFO] [stdout] c82bc4067e2841b305af1cc92592fc15279a55805678cca5c92341a1f6bc901b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 10f027963b224f81658e97c35dc48427ad743b0e7ae5930d182745d3d9ff76c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10f027963b224f81658e97c35dc48427ad743b0e7ae5930d182745d3d9ff76c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling piston_meta_search v0.19.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "10f027963b224f81658e97c35dc48427ad743b0e7ae5930d182745d3d9ff76c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f027963b224f81658e97c35dc48427ad743b0e7ae5930d182745d3d9ff76c8", kill_on_drop: false }`
[INFO] [stdout] 10f027963b224f81658e97c35dc48427ad743b0e7ae5930d182745d3d9ff76c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 02352fe685a2379bf55bbeea9994a0f742d9df561272db8f6c65d6575b02a210
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02352fe685a2379bf55bbeea9994a0f742d9df561272db8f6c65d6575b02a210", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/piston_meta_search-d05669ef1a7f62d6)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::search_for_f64 ... ok
[INFO] [stdout] test tests::search_for_end_node ... ok
[INFO] [stdout] test tests::search_for_bool ... ok
[INFO] [stdout] test tests::f64 ... ok
[INFO] [stdout] test tests::search_for_string ... ok
[INFO] [stdout] test tests::bool ... ok
[INFO] [stdout] test tests::node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piston_meta_search
[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" "02352fe685a2379bf55bbeea9994a0f742d9df561272db8f6c65d6575b02a210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02352fe685a2379bf55bbeea9994a0f742d9df561272db8f6c65d6575b02a210", kill_on_drop: false }`
[INFO] [stdout] 02352fe685a2379bf55bbeea9994a0f742d9df561272db8f6c65d6575b02a210