[INFO] fetching crate rpool 1.0.1...
[INFO] testing rpool-1.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rpool 1.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rpool 1.0.1 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 rpool 1.0.1
[INFO] finished tweaking crates.io crate rpool 1.0.1
[INFO] tweaked toml for crates.io crate rpool 1.0.1 written to /workspace/builds/worker-2/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-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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adc2faf0da88761aa58475f5b52117bc5f0b02c425a030dcafb7d9ddad430895
[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" "adc2faf0da88761aa58475f5b52117bc5f0b02c425a030dcafb7d9ddad430895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adc2faf0da88761aa58475f5b52117bc5f0b02c425a030dcafb7d9ddad430895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc2faf0da88761aa58475f5b52117bc5f0b02c425a030dcafb7d9ddad430895", kill_on_drop: false }`
[INFO] [stdout] adc2faf0da88761aa58475f5b52117bc5f0b02c425a030dcafb7d9ddad430895
[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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a146ced366206c48025217ccfa72696867685d23e6130afbe0a9b46723203ef
[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" "2a146ced366206c48025217ccfa72696867685d23e6130afbe0a9b46723203ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling rpool v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "2a146ced366206c48025217ccfa72696867685d23e6130afbe0a9b46723203ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a146ced366206c48025217ccfa72696867685d23e6130afbe0a9b46723203ef", kill_on_drop: false }`
[INFO] [stdout] 2a146ced366206c48025217ccfa72696867685d23e6130afbe0a9b46723203ef
[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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4eed249766c5e6e3a0d0ec77d63ffa5c0b706e7197e9ba474136c89386dac39
[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" "e4eed249766c5e6e3a0d0ec77d63ffa5c0b706e7197e9ba474136c89386dac39", kill_on_drop: false }`
[INFO] [stderr]    Compiling rpool v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "e4eed249766c5e6e3a0d0ec77d63ffa5c0b706e7197e9ba474136c89386dac39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4eed249766c5e6e3a0d0ec77d63ffa5c0b706e7197e9ba474136c89386dac39", kill_on_drop: false }`
[INFO] [stdout] e4eed249766c5e6e3a0d0ec77d63ffa5c0b706e7197e9ba474136c89386dac39
[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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbcc91f4ecfceaf55264cd3a5e547c97afc4a40497b5191427cf0c4894ffce3a
[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" "cbcc91f4ecfceaf55264cd3a5e547c97afc4a40497b5191427cf0c4894ffce3a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rpool-ac356de55c44796f
[INFO] [stdout] test test::test_get ... ok
[INFO] [stdout] test test::test_get_refreshed ... ok
[INFO] [stdout] test test::test_grow_exponential ... ok
[INFO] [stdout] test test::test_grow_capped ... ok
[INFO] [stdout] test test::test_grow ... ok
[INFO] [stdout] test test::test_creation ... ok
[INFO] [stdout] test test::test_race_readonly ... ok
[INFO] [stdout] test test::test_race_read_return ... ok
[INFO] [stdout] test test::test_race_read_grow ... 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 rpool
[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" "cbcc91f4ecfceaf55264cd3a5e547c97afc4a40497b5191427cf0c4894ffce3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcc91f4ecfceaf55264cd3a5e547c97afc4a40497b5191427cf0c4894ffce3a", kill_on_drop: false }`
[INFO] [stdout] cbcc91f4ecfceaf55264cd3a5e547c97afc4a40497b5191427cf0c4894ffce3a