Dec 04 23:33:11.042 INFO checking Voronchikhin/networking_labs against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 23:33:11.042 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 04 23:33:11.414 INFO [stdout] e1b740ad18b52192958f11c4a42e0ae58fb762227ebd34002e4413d4157c8a29
Dec 04 23:33:11.416 INFO running `"docker" "start" "-a" "e1b740ad18b52192958f11c4a42e0ae58fb762227ebd34002e4413d4157c8a29"`
Dec 04 23:33:13.208 INFO [stderr] usermod: no changes
Dec 04 23:33:13.339 INFO [stderr]     Checking Multicaster v0.1.0 (/source)
Dec 04 23:33:14.219 INFO [stderr] warning: unused import: `net2`
Dec 04 23:33:14.219 INFO [stderr]   --> src/main.rs:10:5
Dec 04 23:33:14.219 INFO [stderr]    |
Dec 04 23:33:14.219 INFO [stderr] 10 | use net2::*;
Dec 04 23:33:14.219 INFO [stderr]    |     ^^^^
Dec 04 23:33:14.219 INFO [stderr]    |
Dec 04 23:33:14.219 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 23:33:14.219 INFO [stderr] 
Dec 04 23:33:14.231 INFO [stderr] warning: unused variable: `buffer`
Dec 04 23:33:14.231 INFO [stderr]   --> src/main.rs:19:9
Dec 04 23:33:14.231 INFO [stderr]    |
Dec 04 23:33:14.231 INFO [stderr] 19 |     let buffer = [0u8; 1600];
Dec 04 23:33:14.231 INFO [stderr]    |         ^^^^^^ help: consider using `_buffer` instead
Dec 04 23:33:14.231 INFO [stderr]    |
Dec 04 23:33:14.231 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:33:14.231 INFO [stderr] 
Dec 04 23:33:14.231 INFO [stderr] warning: unused variable: `e`
Dec 04 23:33:14.231 INFO [stderr]   --> src/main.rs:26:17
Dec 04 23:33:14.231 INFO [stderr]    |
Dec 04 23:33:14.231 INFO [stderr] 26 |             Err(e)   => println!("sending error"),
Dec 04 23:33:14.231 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 04 23:33:14.231 INFO [stderr] 
Dec 04 23:33:14.231 INFO [stderr] warning: unused variable: `v4_addr`
Dec 04 23:33:14.231 INFO [stderr]   --> src/main.rs:40:20
Dec 04 23:33:14.231 INFO [stderr]    |
Dec 04 23:33:14.231 INFO [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
Dec 04 23:33:14.231 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v4_addr` instead
Dec 04 23:33:14.231 INFO [stderr] 
Dec 04 23:33:14.231 INFO [stderr] warning: unused variable: `v6_addr`
Dec 04 23:33:14.231 INFO [stderr]   --> src/main.rs:41:20
Dec 04 23:33:14.231 INFO [stderr]    |
Dec 04 23:33:14.231 INFO [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
Dec 04 23:33:14.231 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v6_addr` instead
Dec 04 23:33:14.231 INFO [stderr] 
Dec 04 23:33:14.279 INFO [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster`
Dec 04 23:33:14.279 INFO [stderr]   |
Dec 04 23:33:14.279 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 23:33:14.279 INFO [stderr] 
Dec 04 23:33:14.279 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.279 INFO [stderr]   --> src/main.rs:50:5
Dec 04 23:33:14.279 INFO [stderr]    |
Dec 04 23:33:14.279 INFO [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
Dec 04 23:33:14.279 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.291 INFO [stderr]    |
Dec 04 23:33:14.291 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:33:14.291 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.291 INFO [stderr] 
Dec 04 23:33:14.291 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.291 INFO [stderr]   --> src/main.rs:73:5
Dec 04 23:33:14.291 INFO [stderr]    |
Dec 04 23:33:14.291 INFO [stderr] 73 |     _sender_handle.unwrap().join();
Dec 04 23:33:14.291 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.292 INFO [stderr]    |
Dec 04 23:33:14.292 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.292 INFO [stderr] 
Dec 04 23:33:14.292 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.292 INFO [stderr]   --> src/main.rs:74:5
Dec 04 23:33:14.293 INFO [stderr]    |
Dec 04 23:33:14.293 INFO [stderr] 74 |     _listener_handle.unwrap().join();
Dec 04 23:33:14.293 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.293 INFO [stderr]    |
Dec 04 23:33:14.293 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.294 INFO [stderr] 
Dec 04 23:33:14.299 INFO [stderr] warning: unused import: `net2`
Dec 04 23:33:14.299 INFO [stderr]   --> src/main.rs:10:5
Dec 04 23:33:14.299 INFO [stderr]    |
Dec 04 23:33:14.299 INFO [stderr] 10 | use net2::*;
Dec 04 23:33:14.299 INFO [stderr]    |     ^^^^
Dec 04 23:33:14.299 INFO [stderr]    |
Dec 04 23:33:14.299 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 23:33:14.299 INFO [stderr] 
Dec 04 23:33:14.302 INFO [stderr] warning: unused variable: `buffer`
Dec 04 23:33:14.302 INFO [stderr]   --> src/main.rs:19:9
Dec 04 23:33:14.302 INFO [stderr]    |
Dec 04 23:33:14.303 INFO [stderr] 19 |     let buffer = [0u8; 1600];
Dec 04 23:33:14.303 INFO [stderr]    |         ^^^^^^ help: consider using `_buffer` instead
Dec 04 23:33:14.303 INFO [stderr]    |
Dec 04 23:33:14.303 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:33:14.303 INFO [stderr] 
Dec 04 23:33:14.303 INFO [stderr] warning: unused variable: `e`
Dec 04 23:33:14.303 INFO [stderr]   --> src/main.rs:26:17
Dec 04 23:33:14.303 INFO [stderr]    |
Dec 04 23:33:14.303 INFO [stderr] 26 |             Err(e)   => println!("sending error"),
Dec 04 23:33:14.303 INFO [stderr]    |                 ^ help: consider using `_e` instead
Dec 04 23:33:14.303 INFO [stderr] 
Dec 04 23:33:14.303 INFO [stderr] warning: unused variable: `v4_addr`
Dec 04 23:33:14.303 INFO [stderr]   --> src/main.rs:40:20
Dec 04 23:33:14.303 INFO [stderr]    |
Dec 04 23:33:14.303 INFO [stderr] 40 |         IpAddr::V4(v4_addr) => UdpBuilder::new_v4(),
Dec 04 23:33:14.303 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v4_addr` instead
Dec 04 23:33:14.303 INFO [stderr] 
Dec 04 23:33:14.303 INFO [stderr] warning: unused variable: `v6_addr`
Dec 04 23:33:14.304 INFO [stderr]   --> src/main.rs:41:20
Dec 04 23:33:14.304 INFO [stderr]    |
Dec 04 23:33:14.304 INFO [stderr] 41 |         IpAddr::V6(v6_addr) => UdpBuilder::new_v6(),
Dec 04 23:33:14.304 INFO [stderr]    |                    ^^^^^^^ help: consider using `_v6_addr` instead
Dec 04 23:33:14.304 INFO [stderr] 
Dec 04 23:33:14.329 INFO [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster`
Dec 04 23:33:14.330 INFO [stderr]   |
Dec 04 23:33:14.330 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 04 23:33:14.330 INFO [stderr] 
Dec 04 23:33:14.330 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.330 INFO [stderr]   --> src/main.rs:50:5
Dec 04 23:33:14.330 INFO [stderr]    |
Dec 04 23:33:14.330 INFO [stderr] 50 |     socket.set_read_timeout(Option::from(Duration::from_secs(3)));
Dec 04 23:33:14.330 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.330 INFO [stderr]    |
Dec 04 23:33:14.330 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:33:14.330 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.330 INFO [stderr] 
Dec 04 23:33:14.330 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.330 INFO [stderr]   --> src/main.rs:73:5
Dec 04 23:33:14.331 INFO [stderr]    |
Dec 04 23:33:14.331 INFO [stderr] 73 |     _sender_handle.unwrap().join();
Dec 04 23:33:14.331 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.331 INFO [stderr]    |
Dec 04 23:33:14.331 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.331 INFO [stderr] 
Dec 04 23:33:14.331 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:14.331 INFO [stderr]   --> src/main.rs:74:5
Dec 04 23:33:14.331 INFO [stderr]    |
Dec 04 23:33:14.331 INFO [stderr] 74 |     _listener_handle.unwrap().join();
Dec 04 23:33:14.331 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.331 INFO [stderr]    |
Dec 04 23:33:14.331 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:14.331 INFO [stderr] 
Dec 04 23:33:14.387 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 04 23:33:14.390 INFO [stderr] su: No module specific data is present
Dec 04 23:33:15.005 INFO running `"docker" "inspect" "e1b740ad18b52192958f11c4a42e0ae58fb762227ebd34002e4413d4157c8a29"`
Dec 04 23:33:15.423 INFO running `"docker" "rm" "-f" "e1b740ad18b52192958f11c4a42e0ae58fb762227ebd34002e4413d4157c8a29"`
Dec 04 23:33:15.682 INFO [stdout] e1b740ad18b52192958f11c4a42e0ae58fb762227ebd34002e4413d4157c8a29