[INFO] fetching crate stakker_mio 0.2.2...
[INFO] testing stakker_mio-0.2.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate stakker_mio 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate stakker_mio 0.2.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker_mio 0.2.2
[INFO] finished tweaking crates.io crate stakker_mio 0.2.2
[INFO] tweaked toml for crates.io crate stakker_mio 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate stakker_mio 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qcell v0.4.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d69144294faec845e108d798deeeed56de6ce748b7a73e8e159c1070de8260f
[INFO] running `Command { std: "docker" "start" "-a" "3d69144294faec845e108d798deeeed56de6ce748b7a73e8e159c1070de8260f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d69144294faec845e108d798deeeed56de6ce748b7a73e8e159c1070de8260f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d69144294faec845e108d798deeeed56de6ce748b7a73e8e159c1070de8260f", kill_on_drop: false }`
[INFO] [stdout] 3d69144294faec845e108d798deeeed56de6ce748b7a73e8e159c1070de8260f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1c609a4d12a6ded61c74acf44c89a8d89c1448e742677b5ef7a2647c25f9609
[INFO] running `Command { std: "docker" "start" "-a" "d1c609a4d12a6ded61c74acf44c89a8d89c1448e742677b5ef7a2647c25f9609", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling qcell v0.4.1
[INFO] [stderr]    Compiling stakker v0.2.4
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling stakker_mio v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "d1c609a4d12a6ded61c74acf44c89a8d89c1448e742677b5ef7a2647c25f9609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c609a4d12a6ded61c74acf44c89a8d89c1448e742677b5ef7a2647c25f9609", kill_on_drop: false }`
[INFO] [stdout] d1c609a4d12a6ded61c74acf44c89a8d89c1448e742677b5ef7a2647c25f9609
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55b6ee9944fad5a67a722df9bab69bd004cbbd092c7d14ad29f433dc39c467f4
[INFO] running `Command { std: "docker" "start" "-a" "55b6ee9944fad5a67a722df9bab69bd004cbbd092c7d14ad29f433dc39c467f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling stakker_mio v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "55b6ee9944fad5a67a722df9bab69bd004cbbd092c7d14ad29f433dc39c467f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b6ee9944fad5a67a722df9bab69bd004cbbd092c7d14ad29f433dc39c467f4", kill_on_drop: false }`
[INFO] [stdout] 55b6ee9944fad5a67a722df9bab69bd004cbbd092c7d14ad29f433dc39c467f4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c2f888a1ed58374417f008339b63e41b66c08b9d8479890f3b14cab7d52ba73
[INFO] running `Command { std: "docker" "start" "-a" "5c2f888a1ed58374417f008339b63e41b66c08b9d8479890f3b14cab7d52ba73", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stakker_mio-805f17b8bc3a2e9b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::udp::basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stakker_mio
[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" "5c2f888a1ed58374417f008339b63e41b66c08b9d8479890f3b14cab7d52ba73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c2f888a1ed58374417f008339b63e41b66c08b9d8479890f3b14cab7d52ba73", kill_on_drop: false }`
[INFO] [stdout] 5c2f888a1ed58374417f008339b63e41b66c08b9d8479890f3b14cab7d52ba73