[INFO] fetching crate son_of_grid_engine 0.2.0...
[INFO] testing son_of_grid_engine-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate son_of_grid_engine 0.2.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate son_of_grid_engine 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate son_of_grid_engine 0.2.0
[INFO] finished tweaking crates.io crate son_of_grid_engine 0.2.0
[INFO] tweaked toml for crates.io crate son_of_grid_engine 0.2.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b3af96d8521d0e3ee6a6a1ace46c78e85f1bb371cff4fe4b56e9979f2b389ef
[INFO] running `Command { std: "docker" "start" "-a" "7b3af96d8521d0e3ee6a6a1ace46c78e85f1bb371cff4fe4b56e9979f2b389ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3af96d8521d0e3ee6a6a1ace46c78e85f1bb371cff4fe4b56e9979f2b389ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3af96d8521d0e3ee6a6a1ace46c78e85f1bb371cff4fe4b56e9979f2b389ef", kill_on_drop: false }`
[INFO] [stdout] 7b3af96d8521d0e3ee6a6a1ace46c78e85f1bb371cff4fe4b56e9979f2b389ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ba2bc36dd2defff3eb141e7961240912ab99032e8559d344ef6fcdd19349c1a
[INFO] running `Command { std: "docker" "start" "-a" "7ba2bc36dd2defff3eb141e7961240912ab99032e8559d344ef6fcdd19349c1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling son_of_grid_engine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "7ba2bc36dd2defff3eb141e7961240912ab99032e8559d344ef6fcdd19349c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba2bc36dd2defff3eb141e7961240912ab99032e8559d344ef6fcdd19349c1a", kill_on_drop: false }`
[INFO] [stdout] 7ba2bc36dd2defff3eb141e7961240912ab99032e8559d344ef6fcdd19349c1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b22ccf233ab19e5e026ef11dcc3b02ccc1048db2e6b2169b86df0f28b5e7eba
[INFO] running `Command { std: "docker" "start" "-a" "8b22ccf233ab19e5e026ef11dcc3b02ccc1048db2e6b2169b86df0f28b5e7eba", kill_on_drop: false }`
[INFO] [stderr]    Compiling son_of_grid_engine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> examples/networking.rs:180:33
[INFO] [stdout]     |
[INFO] [stdout] 180 | ...                   write(stream.get_mut(), ips).is_ok();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> examples/networking.rs:205:37
[INFO] [stdout]     |
[INFO] [stdout] 205 | ...                   write(stream.get_mut(), id).is_ok();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "8b22ccf233ab19e5e026ef11dcc3b02ccc1048db2e6b2169b86df0f28b5e7eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b22ccf233ab19e5e026ef11dcc3b02ccc1048db2e6b2169b86df0f28b5e7eba", kill_on_drop: false }`
[INFO] [stdout] 8b22ccf233ab19e5e026ef11dcc3b02ccc1048db2e6b2169b86df0f28b5e7eba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c76e8e4ff0ef824ec740099a194ab2314ba0da007a23c3bd3c61f999ea4cb95
[INFO] running `Command { std: "docker" "start" "-a" "5c76e8e4ff0ef824ec740099a194ab2314ba0da007a23c3bd3c61f999ea4cb95", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> examples/networking.rs:180:33
[INFO] [stderr]     |
[INFO] [stderr] 180 | ...                   write(stream.get_mut(), ips).is_ok();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> examples/networking.rs:205:37
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   write(stream.get_mut(), id).is_ok();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `son_of_grid_engine` (example "networking") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/son_of_grid_engine-049078a119f55da8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::ifconfig ... ok
[INFO] [stdout] test tests::ip_a ... ok
[INFO] [stdout] test tests::ip_6_a ... ok
[INFO] [stdout] test tests::array_connect_master ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests son_of_grid_engine
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] test src/lib.rs - SystemInfo::get_pinned_threadpool (line 91) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5c76e8e4ff0ef824ec740099a194ab2314ba0da007a23c3bd3c61f999ea4cb95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c76e8e4ff0ef824ec740099a194ab2314ba0da007a23c3bd3c61f999ea4cb95", kill_on_drop: false }`
[INFO] [stdout] 5c76e8e4ff0ef824ec740099a194ab2314ba0da007a23c3bd3c61f999ea4cb95