[INFO] fetching crate union-find 0.3.2...
[INFO] testing union-find-0.3.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate union-find 0.3.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate union-find 0.3.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate union-find 0.3.2
[INFO] finished tweaking crates.io crate union-find 0.3.2
[INFO] tweaked toml for crates.io crate union-find 0.3.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", 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] 6b0c01d0c08a7dfce7e4c899c64a0d77bc5620ed15beb4b176f9c7efdfc5f5be
[INFO] running `Command { std: "docker" "start" "-a" "6b0c01d0c08a7dfce7e4c899c64a0d77bc5620ed15beb4b176f9c7efdfc5f5be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b0c01d0c08a7dfce7e4c899c64a0d77bc5620ed15beb4b176f9c7efdfc5f5be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0c01d0c08a7dfce7e4c899c64a0d77bc5620ed15beb4b176f9c7efdfc5f5be", kill_on_drop: false }`
[INFO] [stdout] 6b0c01d0c08a7dfce7e4c899c64a0d77bc5620ed15beb4b176f9c7efdfc5f5be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 576791b9117479c88cb3a59f5bb1e257cec9698da8e597456a02e170e8b5fd03
[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" "576791b9117479c88cb3a59f5bb1e257cec9698da8e597456a02e170e8b5fd03", kill_on_drop: false }`
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "576791b9117479c88cb3a59f5bb1e257cec9698da8e597456a02e170e8b5fd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "576791b9117479c88cb3a59f5bb1e257cec9698da8e597456a02e170e8b5fd03", kill_on_drop: false }`
[INFO] [stdout] 576791b9117479c88cb3a59f5bb1e257cec9698da8e597456a02e170e8b5fd03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fca0fab198746ad03abc36eb03ac3230c1a105d70bd55eb59cdf81e60ad624d
[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" "4fca0fab198746ad03abc36eb03ac3230c1a105d70bd55eb59cdf81e60ad624d", 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] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling union-find v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "4fca0fab198746ad03abc36eb03ac3230c1a105d70bd55eb59cdf81e60ad624d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fca0fab198746ad03abc36eb03ac3230c1a105d70bd55eb59cdf81e60ad624d", kill_on_drop: false }`
[INFO] [stdout] 4fca0fab198746ad03abc36eb03ac3230c1a105d70bd55eb59cdf81e60ad624d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", 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] 9f85d2a91cb915d57007d4981b52922590c1cb60d39f11037a1ec192ffc902f5
[INFO] running `Command { std: "docker" "start" "-a" "9f85d2a91cb915d57007d4981b52922590c1cb60d39f11037a1ec192ffc902f5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/union_find-9ad346ea725bbd25
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::quick_union::union_find ... ok
[INFO] [stderr]    Doc-tests union-find
[INFO] [stdout] test tests::quick_find::union_find ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f85d2a91cb915d57007d4981b52922590c1cb60d39f11037a1ec192ffc902f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f85d2a91cb915d57007d4981b52922590c1cb60d39f11037a1ec192ffc902f5", kill_on_drop: false }`
[INFO] [stdout] 9f85d2a91cb915d57007d4981b52922590c1cb60d39f11037a1ec192ffc902f5