[INFO] fetching crate mio 0.7.7...
[INFO] testing mio-0.7.7 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate mio 0.7.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mio 0.7.7 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 mio 0.7.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mio 0.7.7
[INFO] tweaked toml for crates.io crate mio 0.7.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mio 0.7.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded socket2 v0.3.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 324fefda6305bb0e7c2641db81eb36cf38fe0468e3c53b38244e35dac5970b95
[INFO] running `Command { std: "docker" "start" "-a" "324fefda6305bb0e7c2641db81eb36cf38fe0468e3c53b38244e35dac5970b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "324fefda6305bb0e7c2641db81eb36cf38fe0468e3c53b38244e35dac5970b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324fefda6305bb0e7c2641db81eb36cf38fe0468e3c53b38244e35dac5970b95", kill_on_drop: false }`
[INFO] [stdout] 324fefda6305bb0e7c2641db81eb36cf38fe0468e3c53b38244e35dac5970b95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 6495afd4d3decb212bc9ea7d3210e57f041db12b38137c75e5ba15555179979e
[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" "6495afd4d3decb212bc9ea7d3210e57f041db12b38137c75e5ba15555179979e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mio v0.7.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "6495afd4d3decb212bc9ea7d3210e57f041db12b38137c75e5ba15555179979e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6495afd4d3decb212bc9ea7d3210e57f041db12b38137c75e5ba15555179979e", kill_on_drop: false }`
[INFO] [stdout] 6495afd4d3decb212bc9ea7d3210e57f041db12b38137c75e5ba15555179979e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a0cdcb1de349125b479a1932d971c6c3e28f3b1e550c513b3880fc7ed7a9aad8
[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" "a0cdcb1de349125b479a1932d971c6c3e28f3b1e550c513b3880fc7ed7a9aad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling mio v0.7.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "a0cdcb1de349125b479a1932d971c6c3e28f3b1e550c513b3880fc7ed7a9aad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0cdcb1de349125b479a1932d971c6c3e28f3b1e550c513b3880fc7ed7a9aad8", kill_on_drop: false }`
[INFO] [stdout] a0cdcb1de349125b479a1932d971c6c3e28f3b1e550c513b3880fc7ed7a9aad8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 4001d750a6c713fc3579caf955c5beae1c9d8a6a314ec519d93d2a0b2e9872a2
[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" "4001d750a6c713fc3579caf955c5beae1c9d8a6a314ec519d93d2a0b2e9872a2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mio-bffc847aae71a0bb
[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] [stderr]    Doc-tests mio
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/event/events.rs - event::events::Events (line 20) ... ignored
[INFO] [stdout] test src/event/events.rs - event::events::Events::clear (line 164) ... ignored
[INFO] [stdout] test src/event/events.rs - event::events::Events::iter (line 128) ... ignored
[INFO] [stdout] test src/event/events.rs - event::events::Iter (line 55) ... ignored
[INFO] [stdout] test src/event/source.rs - event::source::Source (line 41) ... ignored
[INFO] [stdout] test src/lib.rs - guide (line 142) ... ignored
[INFO] [stdout] test src/lib.rs - guide (line 176) ... ignored
[INFO] [stdout] test src/lib.rs - guide (line 214) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Poll (line 129) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Poll (line 33) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Poll::poll (line 263) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Registry::deregister (line 573) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Registry::register (line 428) ... ignored
[INFO] [stdout] test src/poll.rs - poll::Registry::reregister (line 506) ... ignored
[INFO] [stdout] test src/token.rs - token::Token (line 20) ... ignored
[INFO] [stdout] test src/waker.rs - waker::Waker (line 37) ... ignored
[INFO] [stdout] test src/interest.rs - interest::Interest::add (line 61) ... ok
[INFO] [stdout] test src/event/events.rs - event::events::Events::is_empty (line 114) ... ok
[INFO] [stdout] test src/interest.rs - interest::Interest::remove (line 77) ... ok
[INFO] [stdout] test src/event/events.rs - event::events::Events::capacity (line 100) ... ok
[INFO] [stdout] test src/event/events.rs - event::events::Events::with_capacity (line 86) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 16 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4001d750a6c713fc3579caf955c5beae1c9d8a6a314ec519d93d2a0b2e9872a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4001d750a6c713fc3579caf955c5beae1c9d8a6a314ec519d93d2a0b2e9872a2", kill_on_drop: false }`
[INFO] [stdout] 4001d750a6c713fc3579caf955c5beae1c9d8a6a314ec519d93d2a0b2e9872a2