[INFO] fetching crate stakker_mio 0.1.3...
[INFO] testing stakker_mio-0.1.3 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate stakker_mio 0.1.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stakker_mio 0.1.3 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 stakker_mio 0.1.3
[INFO] finished tweaking crates.io crate stakker_mio 0.1.3
[INFO] tweaked toml for crates.io crate stakker_mio 0.1.3 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 03884765e559aa3b477c44b5fd25d049aa02d49f88739944dbab7f69a33b039c
[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" "03884765e559aa3b477c44b5fd25d049aa02d49f88739944dbab7f69a33b039c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03884765e559aa3b477c44b5fd25d049aa02d49f88739944dbab7f69a33b039c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03884765e559aa3b477c44b5fd25d049aa02d49f88739944dbab7f69a33b039c", kill_on_drop: false }`
[INFO] [stdout] 03884765e559aa3b477c44b5fd25d049aa02d49f88739944dbab7f69a33b039c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 9b9617a455413bb51a48193b7c974fa8139441b0f0a2800ae073a50e0a43df74
[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" "9b9617a455413bb51a48193b7c974fa8139441b0f0a2800ae073a50e0a43df74", kill_on_drop: false }`
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling qcell v0.4.1
[INFO] [stderr]    Compiling mio v0.7.0
[INFO] [stderr]    Compiling stakker v0.1.2
[INFO] [stderr]    Compiling stakker_mio v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.17s
[INFO] running `Command { std: "docker" "inspect" "9b9617a455413bb51a48193b7c974fa8139441b0f0a2800ae073a50e0a43df74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9617a455413bb51a48193b7c974fa8139441b0f0a2800ae073a50e0a43df74", kill_on_drop: false }`
[INFO] [stdout] 9b9617a455413bb51a48193b7c974fa8139441b0f0a2800ae073a50e0a43df74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 9225a010a666e5a0401fb838dda1e4d4d4d33925a983eca3a0b6a2b64750037d
[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" "9225a010a666e5a0401fb838dda1e4d4d4d33925a983eca3a0b6a2b64750037d", kill_on_drop: false }`
[INFO] [stderr]    Compiling stakker_mio v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "9225a010a666e5a0401fb838dda1e4d4d4d33925a983eca3a0b6a2b64750037d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9225a010a666e5a0401fb838dda1e4d4d4d33925a983eca3a0b6a2b64750037d", kill_on_drop: false }`
[INFO] [stdout] 9225a010a666e5a0401fb838dda1e4d4d4d33925a983eca3a0b6a2b64750037d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 79d29bfccce9586695c620ea44d0688c99a9eca3461e68d27753cf842bbe82e9
[INFO] running `Command { std: "docker" "start" "-a" "79d29bfccce9586695c620ea44d0688c99a9eca3461e68d27753cf842bbe82e9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stakker_mio-3d2287b2ddf9002f
[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] [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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79d29bfccce9586695c620ea44d0688c99a9eca3461e68d27753cf842bbe82e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d29bfccce9586695c620ea44d0688c99a9eca3461e68d27753cf842bbe82e9", kill_on_drop: false }`
[INFO] [stdout] 79d29bfccce9586695c620ea44d0688c99a9eca3461e68d27753cf842bbe82e9