[INFO] fetching crate syn_util 0.4.2...
[INFO] testing syn_util-0.4.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate syn_util 0.4.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate syn_util 0.4.2 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95ca1cc2010eb8e8ee7444a68d7435ae48d31d523aa6245d6bb7c942180f3641
[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" "95ca1cc2010eb8e8ee7444a68d7435ae48d31d523aa6245d6bb7c942180f3641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95ca1cc2010eb8e8ee7444a68d7435ae48d31d523aa6245d6bb7c942180f3641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ca1cc2010eb8e8ee7444a68d7435ae48d31d523aa6245d6bb7c942180f3641", kill_on_drop: false }`
[INFO] [stdout] 95ca1cc2010eb8e8ee7444a68d7435ae48d31d523aa6245d6bb7c942180f3641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "build" "--frozen" "--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] 2dd9f49599544b283c58a1d01f2b3cb771b1b00d22b64a60120c4639955815fe
[INFO] running `Command { std: "docker" "start" "-a" "2dd9f49599544b283c58a1d01f2b3cb771b1b00d22b64a60120c4639955815fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_util v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "2dd9f49599544b283c58a1d01f2b3cb771b1b00d22b64a60120c4639955815fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd9f49599544b283c58a1d01f2b3cb771b1b00d22b64a60120c4639955815fe", kill_on_drop: false }`
[INFO] [stdout] 2dd9f49599544b283c58a1d01f2b3cb771b1b00d22b64a60120c4639955815fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 509d0fcb35daab111515b39c9c03624fa6431cd3fff3ec3579555d430ec2bad3
[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" "509d0fcb35daab111515b39c9c03624fa6431cd3fff3ec3579555d430ec2bad3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_util v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "509d0fcb35daab111515b39c9c03624fa6431cd3fff3ec3579555d430ec2bad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509d0fcb35daab111515b39c9c03624fa6431cd3fff3ec3579555d430ec2bad3", kill_on_drop: false }`
[INFO] [stdout] 509d0fcb35daab111515b39c9c03624fa6431cd3fff3ec3579555d430ec2bad3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf1f6335d339d51a933761397d77953db1bb79d53042df471ad117c9a3655e44
[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" "cf1f6335d339d51a933761397d77953db1bb79d53042df471ad117c9a3655e44", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syn_util-bc1e7ac96077159b
[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 test::test_get_attribute_value_impl ... ok
[INFO] [stdout] test test::test_get_attribute_value ... ok
[INFO] [stdout] test test::test_get_attribute_map_impl ... ok
[INFO] [stdout] test test::test_get_attribute_map ... ok
[INFO] [stdout] test test::test_contains_attribute_impl ... ok
[INFO] [stdout] test lit_cast::test::test_str ... 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; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf1f6335d339d51a933761397d77953db1bb79d53042df471ad117c9a3655e44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1f6335d339d51a933761397d77953db1bb79d53042df471ad117c9a3655e44", kill_on_drop: false }`
[INFO] [stdout] cf1f6335d339d51a933761397d77953db1bb79d53042df471ad117c9a3655e44