[INFO] crate son_of_grid_engine 0.2.0 is already in cache
[INFO] extracting crate son_of_grid_engine 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/son_of_grid_engine/0.2.0
[INFO] extracting crate son_of_grid_engine 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/son_of_grid_engine/0.2.0
[INFO] validating manifest of son_of_grid_engine-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of son_of_grid_engine-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing son_of_grid_engine-0.2.0
[INFO] finished frobbing son_of_grid_engine-0.2.0
[INFO] frobbed toml for son_of_grid_engine-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/son_of_grid_engine/0.2.0/Cargo.toml
[INFO] started frobbing son_of_grid_engine-0.2.0
[INFO] finished frobbing son_of_grid_engine-0.2.0
[INFO] frobbed toml for son_of_grid_engine-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/son_of_grid_engine/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing son_of_grid_engine-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/son_of_grid_engine/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ad396e09c895dff743660fafba02396357b4b90abbb52be176142b2bc9db6ff2
[INFO] running `"docker" "start" "-a" "ad396e09c895dff743660fafba02396357b4b90abbb52be176142b2bc9db6ff2"`
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling son_of_grid_engine v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "ad396e09c895dff743660fafba02396357b4b90abbb52be176142b2bc9db6ff2"`
[INFO] running `"docker" "rm" "-f" "ad396e09c895dff743660fafba02396357b4b90abbb52be176142b2bc9db6ff2"`
[INFO] [stdout] ad396e09c895dff743660fafba02396357b4b90abbb52be176142b2bc9db6ff2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/son_of_grid_engine/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 234e51652a3f026cad92459f5e2dd3c81d628943541bf7ab6102c3a394e7d536
[INFO] running `"docker" "start" "-a" "234e51652a3f026cad92459f5e2dd3c81d628943541bf7ab6102c3a394e7d536"`
[INFO] [stderr]    Compiling son_of_grid_engine v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::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 `std::result::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]     Finished dev [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `"docker" "inspect" "234e51652a3f026cad92459f5e2dd3c81d628943541bf7ab6102c3a394e7d536"`
[INFO] running `"docker" "rm" "-f" "234e51652a3f026cad92459f5e2dd3c81d628943541bf7ab6102c3a394e7d536"`
[INFO] [stdout] 234e51652a3f026cad92459f5e2dd3c81d628943541bf7ab6102c3a394e7d536
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/son_of_grid_engine/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 7b001ed1828f1e9d2d6ec4fa955cf6d5b7166fb17e92b6e9b4c263710ef2e846
[INFO] running `"docker" "start" "-a" "7b001ed1828f1e9d2d6ec4fa955cf6d5b7166fb17e92b6e9b4c263710ef2e846"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/son_of_grid_engine-a8819a9fb84f5444
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::ip_6_a ... ok
[INFO] [stdout] test tests::ifconfig ... ok
[INFO] [stdout] test tests::ip_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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests son_of_grid_engine
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - SystemInfo::get_pinned_threadpool (line 91) ... ok
[INFO] [stdout] test src/lib.rs -  (line 3) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7b001ed1828f1e9d2d6ec4fa955cf6d5b7166fb17e92b6e9b4c263710ef2e846"`
[INFO] running `"docker" "rm" "-f" "7b001ed1828f1e9d2d6ec4fa955cf6d5b7166fb17e92b6e9b4c263710ef2e846"`
[INFO] [stdout] 7b001ed1828f1e9d2d6ec4fa955cf6d5b7166fb17e92b6e9b4c263710ef2e846