[INFO] fetching crate syn_util 0.4.2...
[INFO] testing syn_util-0.4.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate syn_util 0.4.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate syn_util 0.4.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn_util 0.4.2
[INFO] finished tweaking crates.io crate syn_util 0.4.2
[INFO] tweaked toml for crates.io crate syn_util 0.4.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b46e28a81aae32bd50ccd21d82d85b3bf7c8254e445c7034ed96373c747a007
[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" "9b46e28a81aae32bd50ccd21d82d85b3bf7c8254e445c7034ed96373c747a007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b46e28a81aae32bd50ccd21d82d85b3bf7c8254e445c7034ed96373c747a007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b46e28a81aae32bd50ccd21d82d85b3bf7c8254e445c7034ed96373c747a007", kill_on_drop: false }`
[INFO] [stdout] 9b46e28a81aae32bd50ccd21d82d85b3bf7c8254e445c7034ed96373c747a007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af7cd3febb8f56a3c8ea3b12b1ac173c9a487be4e4e292a59fd18d851e4efbdf
[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" "af7cd3febb8f56a3c8ea3b12b1ac173c9a487be4e4e292a59fd18d851e4efbdf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_util v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "af7cd3febb8f56a3c8ea3b12b1ac173c9a487be4e4e292a59fd18d851e4efbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7cd3febb8f56a3c8ea3b12b1ac173c9a487be4e4e292a59fd18d851e4efbdf", kill_on_drop: false }`
[INFO] [stdout] af7cd3febb8f56a3c8ea3b12b1ac173c9a487be4e4e292a59fd18d851e4efbdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d593bbfa892e10188f9201c519e20347bd1a3a3106eef08a19f187bd4f431a8
[INFO] running `Command { std: "docker" "start" "-a" "8d593bbfa892e10188f9201c519e20347bd1a3a3106eef08a19f187bd4f431a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_util v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "8d593bbfa892e10188f9201c519e20347bd1a3a3106eef08a19f187bd4f431a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d593bbfa892e10188f9201c519e20347bd1a3a3106eef08a19f187bd4f431a8", kill_on_drop: false }`
[INFO] [stdout] 8d593bbfa892e10188f9201c519e20347bd1a3a3106eef08a19f187bd4f431a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9674df6d64069cffa10bb11a9c752ca1cd2d8d796fb760c29991c85e9c06d7b0
[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" "9674df6d64069cffa10bb11a9c752ca1cd2d8d796fb760c29991c85e9c06d7b0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syn_util-a7fae8c057802aca
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test lit_cast::test::test_bool ... ok
[INFO] [stdout] test lit_cast::test::test_float ... ok
[INFO] [stdout] test lit_cast::test::test_str ... ok
[INFO] [stdout] test test::test_get_attribute_map ... ok
[INFO] [stdout] test test::test_contains_attribute_impl ... ok
[INFO] [stdout] test test::test_get_attribute_value_impl ... ok
[INFO] [stdout] test test::test_get_attribute_map_impl ... ok
[INFO] [stdout] test test::test_get_attribute_value ... ok
[INFO] [stdout] test lit_cast::test::test_int ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syn_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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9674df6d64069cffa10bb11a9c752ca1cd2d8d796fb760c29991c85e9c06d7b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9674df6d64069cffa10bb11a9c752ca1cd2d8d796fb760c29991c85e9c06d7b0", kill_on_drop: false }`
[INFO] [stdout] 9674df6d64069cffa10bb11a9c752ca1cd2d8d796fb760c29991c85e9c06d7b0