Nov 28 10:30:28.501 INFO checking Voronchikhin/networking_labs against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 10:30:28.501 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 10:30:28.930 INFO [stdout] 76dee1f675d129c3d201c7ba4481f4188753d30b1902cf6b05b7b69afde0f822
Nov 28 10:30:28.932 INFO running `"docker" "start" "-a" "76dee1f675d129c3d201c7ba4481f4188753d30b1902cf6b05b7b69afde0f822"`
Nov 28 10:30:30.297 INFO [stderr] usermod: no changes
Nov 28 10:30:30.397 INFO [stderr]     Checking Multicaster v0.1.0 (/source)
Nov 28 10:30:31.313 INFO [stderr] warning: unused import: `net2`
Nov 28 10:30:31.313 INFO [stderr]   --> src/main.rs:10:5
Nov 28 10:30:31.313 INFO [stderr]    |
Nov 28 10:30:31.314 INFO [stderr] 10 | use net2::*;
Nov 28 10:30:31.314 INFO [stderr]    |     ^^^^
Nov 28 10:30:31.314 INFO [stderr]    |
Nov 28 10:30:31.314 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 10:30:31.314 INFO [stderr] 
Nov 28 10:30:31.315 INFO [stderr] warning: unused variable: `buffer`
Nov 28 10:30:31.315 INFO [stderr]   --> src/main.rs:19:9
Nov 28 10:30:31.315 INFO [stderr]    |
Nov 28 10:30:31.316 INFO [stderr] 19 |     let buffer = [0u8; 1600];
Nov 28 10:30:31.316 INFO [stderr]    |         ^^^^^^ help: consider using `_buffer` instead
Nov 28 10:30:31.316 INFO [stderr]    |
Nov 28 10:30:31.316 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:30:31.317 INFO [stderr] 
Nov 28 10:30:31.317 INFO [stderr] warning: unused variable: `e`
Nov 28 10:30:31.317 INFO [stderr]   --> src/main.rs:26:17
Nov 28 10:30:31.317 INFO [stderr]    |
Nov 28 10:30:31.318 INFO [stderr] 26 |             Err(e)   => println!("sending error"),
Nov 28 10:30:31.318 INFO [stderr]    |                 ^ help: consider using `_e` instead
Nov 28 10:30:31.318 INFO [stderr] 
Nov 28 10:30:31.318 INFO [stderr] warning: unused variable: `v4_addr`
Nov 28 10:30:31.319 INFO [stderr]   --> src/main.rs:40:20
Nov 28 10:30:31.319 INFO [stderr]    |
Nov 28 10:30:31.319 INFO [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
Nov 28 10:30:31.319 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v4_addr` instead
Nov 28 10:30:31.320 INFO [stderr] 
Nov 28 10:30:31.320 INFO [stderr] warning: unused variable: `v6_addr`
Nov 28 10:30:31.320 INFO [stderr]   --> src/main.rs:41:20
Nov 28 10:30:31.320 INFO [stderr]    |
Nov 28 10:30:31.321 INFO [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
Nov 28 10:30:31.321 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v6_addr` instead
Nov 28 10:30:31.321 INFO [stderr] 
Nov 28 10:30:31.357 INFO [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster`
Nov 28 10:30:31.357 INFO [stderr]   |
Nov 28 10:30:31.357 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 28 10:30:31.358 INFO [stderr] 
Nov 28 10:30:31.365 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.365 INFO [stderr]   --> src/main.rs:50:5
Nov 28 10:30:31.365 INFO [stderr]    |
Nov 28 10:30:31.365 INFO [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
Nov 28 10:30:31.366 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.366 INFO [stderr]    |
Nov 28 10:30:31.366 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:30:31.367 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.367 INFO [stderr] 
Nov 28 10:30:31.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.367 INFO [stderr]   --> src/main.rs:73:5
Nov 28 10:30:31.368 INFO [stderr]    |
Nov 28 10:30:31.368 INFO [stderr] 73 |     _sender_handle.unwrap().join();
Nov 28 10:30:31.368 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.368 INFO [stderr]    |
Nov 28 10:30:31.369 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.369 INFO [stderr] 
Nov 28 10:30:31.369 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.369 INFO [stderr]   --> src/main.rs:74:5
Nov 28 10:30:31.370 INFO [stderr]    |
Nov 28 10:30:31.370 INFO [stderr] 74 |     _listener_handle.unwrap().join();
Nov 28 10:30:31.370 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.371 INFO [stderr]    |
Nov 28 10:30:31.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.371 INFO [stderr] 
Nov 28 10:30:31.601 INFO [stderr] warning: unused import: `net2`
Nov 28 10:30:31.601 INFO [stderr]   --> src/main.rs:10:5
Nov 28 10:30:31.601 INFO [stderr]    |
Nov 28 10:30:31.602 INFO [stderr] 10 | use net2::*;
Nov 28 10:30:31.602 INFO [stderr]    |     ^^^^
Nov 28 10:30:31.602 INFO [stderr]    |
Nov 28 10:30:31.603 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 10:30:31.603 INFO [stderr] 
Nov 28 10:30:31.603 INFO [stderr] warning: unused variable: `buffer`
Nov 28 10:30:31.603 INFO [stderr]   --> src/main.rs:19:9
Nov 28 10:30:31.604 INFO [stderr]    |
Nov 28 10:30:31.604 INFO [stderr] 19 |     let buffer = [0u8; 1600];
Nov 28 10:30:31.604 INFO [stderr]    |         ^^^^^^ help: consider using `_buffer` instead
Nov 28 10:30:31.605 INFO [stderr]    |
Nov 28 10:30:31.605 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:30:31.605 INFO [stderr] 
Nov 28 10:30:31.605 INFO [stderr] warning: unused variable: `e`
Nov 28 10:30:31.606 INFO [stderr]   --> src/main.rs:26:17
Nov 28 10:30:31.606 INFO [stderr]    |
Nov 28 10:30:31.606 INFO [stderr] 26 |             Err(e)   => println!("sending error"),
Nov 28 10:30:31.607 INFO [stderr]    |                 ^ help: consider using `_e` instead
Nov 28 10:30:31.607 INFO [stderr] 
Nov 28 10:30:31.607 INFO [stderr] warning: unused variable: `v4_addr`
Nov 28 10:30:31.607 INFO [stderr]   --> src/main.rs:40:20
Nov 28 10:30:31.608 INFO [stderr]    |
Nov 28 10:30:31.608 INFO [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
Nov 28 10:30:31.608 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v4_addr` instead
Nov 28 10:30:31.608 INFO [stderr] 
Nov 28 10:30:31.609 INFO [stderr] warning: unused variable: `v6_addr`
Nov 28 10:30:31.609 INFO [stderr]   --> src/main.rs:41:20
Nov 28 10:30:31.609 INFO [stderr]    |
Nov 28 10:30:31.609 INFO [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
Nov 28 10:30:31.610 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v6_addr` instead
Nov 28 10:30:31.610 INFO [stderr] 
Nov 28 10:30:31.649 INFO [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster`
Nov 28 10:30:31.650 INFO [stderr]   |
Nov 28 10:30:31.650 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Nov 28 10:30:31.650 INFO [stderr] 
Nov 28 10:30:31.651 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.651 INFO [stderr]   --> src/main.rs:50:5
Nov 28 10:30:31.651 INFO [stderr]    |
Nov 28 10:30:31.652 INFO [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
Nov 28 10:30:31.652 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.656 INFO [stderr]    |
Nov 28 10:30:31.656 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:30:31.656 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.657 INFO [stderr] 
Nov 28 10:30:31.657 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.657 INFO [stderr]   --> src/main.rs:73:5
Nov 28 10:30:31.657 INFO [stderr]    |
Nov 28 10:30:31.658 INFO [stderr] 73 |     _sender_handle.unwrap().join();
Nov 28 10:30:31.658 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.658 INFO [stderr]    |
Nov 28 10:30:31.659 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.659 INFO [stderr] 
Nov 28 10:30:31.659 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:30:31.660 INFO [stderr]   --> src/main.rs:74:5
Nov 28 10:30:31.660 INFO [stderr]    |
Nov 28 10:30:31.660 INFO [stderr] 74 |     _listener_handle.unwrap().join();
Nov 28 10:30:31.661 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:30:31.661 INFO [stderr]    |
Nov 28 10:30:31.661 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:30:31.661 INFO [stderr] 
Nov 28 10:30:31.663 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
Nov 28 10:30:31.667 INFO [stderr] su: No module specific data is present
Nov 28 10:30:32.378 INFO running `"docker" "inspect" "76dee1f675d129c3d201c7ba4481f4188753d30b1902cf6b05b7b69afde0f822"`
Nov 28 10:30:32.770 INFO running `"docker" "rm" "-f" "76dee1f675d129c3d201c7ba4481f4188753d30b1902cf6b05b7b69afde0f822"`
Nov 28 10:30:33.168 INFO [stdout] 76dee1f675d129c3d201c7ba4481f4188753d30b1902cf6b05b7b69afde0f822