[INFO] updating cached repository https://github.com/Voronchikhin/networking_labs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 892f4113571145b7383298258c3129f4a177dbcf
[INFO] testing Voronchikhin/networking_labs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FVoronchikhin%2Fnetworking_labs" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Voronchikhin/networking_labs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Voronchikhin/networking_labs
[INFO] finished tweaking git repo https://github.com/Voronchikhin/networking_labs
[INFO] tweaked toml for git repo https://github.com/Voronchikhin/networking_labs written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Voronchikhin/networking_labs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 0d23ede5d1e76ced1225fc5390e4298d28414da0449fd7379997c6de89aece22
[INFO] running `"docker" "start" "-a" "0d23ede5d1e76ced1225fc5390e4298d28414da0449fd7379997c6de89aece22"`
[INFO] [stderr]    Compiling Multicaster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `net2`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use net2::*;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let buffer = [0u8; 1600];
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_buffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |             Err(e)   => println!("sending error"),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v4_addr`
[INFO] [stderr]   --> src/main.rs:40:20
[INFO] [stderr]    |
[INFO] [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_v4_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v6_addr`
[INFO] [stderr]   --> src/main.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_v6_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Multicaster` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `multicaster`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     _sender_handle.unwrap().join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     _listener_handle.unwrap().join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "0d23ede5d1e76ced1225fc5390e4298d28414da0449fd7379997c6de89aece22"`
[INFO] running `"docker" "rm" "-f" "0d23ede5d1e76ced1225fc5390e4298d28414da0449fd7379997c6de89aece22"`
[INFO] [stdout] 0d23ede5d1e76ced1225fc5390e4298d28414da0449fd7379997c6de89aece22
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5cdd71290bb16c2e8ef45fa7411756c6437e4954ae59455b9664980f76d9721a
[INFO] running `"docker" "start" "-a" "5cdd71290bb16c2e8ef45fa7411756c6437e4954ae59455b9664980f76d9721a"`
[INFO] [stderr]    Compiling Multicaster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `net2`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use net2::*;
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let buffer = [0u8; 1600];
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_buffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |             Err(e)   => println!("sending error"),
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v4_addr`
[INFO] [stderr]   --> src/main.rs:40:20
[INFO] [stderr]    |
[INFO] [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_v4_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v6_addr`
[INFO] [stderr]   --> src/main.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
[INFO] [stderr]    |                    ^^^^^^^ help: consider prefixing with an underscore: `_v6_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Multicaster` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `multicaster`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     _sender_handle.unwrap().join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     _listener_handle.unwrap().join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "5cdd71290bb16c2e8ef45fa7411756c6437e4954ae59455b9664980f76d9721a"`
[INFO] running `"docker" "rm" "-f" "5cdd71290bb16c2e8ef45fa7411756c6437e4954ae59455b9664980f76d9721a"`
[INFO] [stdout] 5cdd71290bb16c2e8ef45fa7411756c6437e4954ae59455b9664980f76d9721a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] db38b46880f038a814183eaf494235b72c64bc686e4421cde55776932b9c393a
[INFO] running `"docker" "start" "-a" "db38b46880f038a814183eaf494235b72c64bc686e4421cde55776932b9c393a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/Multicaster-85bcf041c59d95ad
[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 `"docker" "inspect" "db38b46880f038a814183eaf494235b72c64bc686e4421cde55776932b9c393a"`
[INFO] running `"docker" "rm" "-f" "db38b46880f038a814183eaf494235b72c64bc686e4421cde55776932b9c393a"`
[INFO] [stdout] db38b46880f038a814183eaf494235b72c64bc686e4421cde55776932b9c393a