Dec 05 02:56:01.876 INFO checking Damezuma/rs-simple-udp-echo against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:56:01.876 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 05 02:56:02.241 INFO [stdout] 5e53cb6926f5a658bf1684d8eacaf8b7819cb928c4cd1606a6cbe9f29347a60a
Dec 05 02:56:02.245 INFO running `"docker" "start" "-a" "5e53cb6926f5a658bf1684d8eacaf8b7819cb928c4cd1606a6cbe9f29347a60a"`
Dec 05 02:56:02.789 INFO [stderr] usermod: no changes
Dec 05 02:56:02.823 INFO [stderr]     Checking arguments v0.1.0 (/source)
Dec 05 02:56:03.255 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 05 02:56:03.255 INFO [stderr]  --> src/client/mod.rs:1:5
Dec 05 02:56:03.255 INFO [stderr]   |
Dec 05 02:56:03.255 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 05 02:56:03.255 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.255 INFO [stderr]   |
Dec 05 02:56:03.255 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:56:03.255 INFO [stderr] 
Dec 05 02:56:03.255 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 05 02:56:03.255 INFO [stderr]  --> src/server/mod.rs:1:5
Dec 05 02:56:03.255 INFO [stderr]   |
Dec 05 02:56:03.255 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 05 02:56:03.255 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.255 INFO [stderr] 
Dec 05 02:56:03.357 INFO [stderr] warning: unused variable: `a`
Dec 05 02:56:03.357 INFO [stderr]   --> src/client/mod.rs:25:24
Dec 05 02:56:03.357 INFO [stderr]    |
Dec 05 02:56:03.358 INFO [stderr] 25 |                 Ok((s, a))=>{
Dec 05 02:56:03.358 INFO [stderr]    |                        ^ help: consider using `_a` instead
Dec 05 02:56:03.358 INFO [stderr]    |
Dec 05 02:56:03.359 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:56:03.359 INFO [stderr] 
Dec 05 02:56:03.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.376 INFO [stderr]   --> src/client/mod.rs:18:9
Dec 05 02:56:03.376 INFO [stderr]    |
Dec 05 02:56:03.377 INFO [stderr] 18 |         self.socket.set_read_timeout(Some(std::time::Duration::from_millis(10)));
Dec 05 02:56:03.377 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.377 INFO [stderr]    |
Dec 05 02:56:03.377 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:56:03.377 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.377 INFO [stderr] 
Dec 05 02:56:03.378 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.378 INFO [stderr]   --> src/server/mod.rs:20:17
Dec 05 02:56:03.378 INFO [stderr]    |
Dec 05 02:56:03.378 INFO [stderr] 20 |                 self.socket.send_to(&buffer[0..size], ipv);
Dec 05 02:56:03.378 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.379 INFO [stderr]    |
Dec 05 02:56:03.379 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.379 INFO [stderr] 
Dec 05 02:56:03.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.379 INFO [stderr]   --> src/main.rs:18:9
Dec 05 02:56:03.380 INFO [stderr]    |
Dec 05 02:56:03.380 INFO [stderr] 18 |         server.recv();
Dec 05 02:56:03.380 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 05 02:56:03.380 INFO [stderr]    |
Dec 05 02:56:03.381 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.381 INFO [stderr] 
Dec 05 02:56:03.381 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.381 INFO [stderr]   --> src/main.rs:39:5
Dec 05 02:56:03.382 INFO [stderr]    |
Dec 05 02:56:03.382 INFO [stderr] 39 |     std::io::stdin().read_line(&mut s);
Dec 05 02:56:03.382 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.382 INFO [stderr]    |
Dec 05 02:56:03.383 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.383 INFO [stderr] 
Dec 05 02:56:03.383 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.383 INFO [stderr]   --> src/main.rs:40:5
Dec 05 02:56:03.384 INFO [stderr]    |
Dec 05 02:56:03.384 INFO [stderr] 40 |     client.send(&s, &SocketAddrV4::new(ip, port_number));
Dec 05 02:56:03.384 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.384 INFO [stderr]    |
Dec 05 02:56:03.384 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.384 INFO [stderr] 
Dec 05 02:56:03.523 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 05 02:56:03.523 INFO [stderr]  --> src/client/mod.rs:1:5
Dec 05 02:56:03.523 INFO [stderr]   |
Dec 05 02:56:03.523 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 05 02:56:03.523 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.523 INFO [stderr]   |
Dec 05 02:56:03.523 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:56:03.523 INFO [stderr] 
Dec 05 02:56:03.523 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 05 02:56:03.523 INFO [stderr]  --> src/server/mod.rs:1:5
Dec 05 02:56:03.523 INFO [stderr]   |
Dec 05 02:56:03.523 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 05 02:56:03.523 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.523 INFO [stderr] 
Dec 05 02:56:03.591 INFO [stderr] warning: unused variable: `a`
Dec 05 02:56:03.591 INFO [stderr]   --> src/client/mod.rs:25:24
Dec 05 02:56:03.591 INFO [stderr]    |
Dec 05 02:56:03.591 INFO [stderr] 25 |                 Ok((s, a))=>{
Dec 05 02:56:03.591 INFO [stderr]    |                        ^ help: consider using `_a` instead
Dec 05 02:56:03.591 INFO [stderr]    |
Dec 05 02:56:03.591 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:56:03.591 INFO [stderr] 
Dec 05 02:56:03.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.605 INFO [stderr]   --> src/client/mod.rs:18:9
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr] 18 |         self.socket.set_read_timeout(Some(std::time::Duration::from_millis(10)));
Dec 05 02:56:03.605 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:56:03.605 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.605 INFO [stderr] 
Dec 05 02:56:03.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.605 INFO [stderr]   --> src/server/mod.rs:20:17
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr] 20 |                 self.socket.send_to(&buffer[0..size], ipv);
Dec 05 02:56:03.605 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.605 INFO [stderr] 
Dec 05 02:56:03.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.605 INFO [stderr]   --> src/main.rs:18:9
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr] 18 |         server.recv();
Dec 05 02:56:03.605 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.605 INFO [stderr] 
Dec 05 02:56:03.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.605 INFO [stderr]   --> src/main.rs:39:5
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr] 39 |     std::io::stdin().read_line(&mut s);
Dec 05 02:56:03.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.605 INFO [stderr] 
Dec 05 02:56:03.605 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:56:03.605 INFO [stderr]   --> src/main.rs:40:5
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr] 40 |     client.send(&s, &SocketAddrV4::new(ip, port_number));
Dec 05 02:56:03.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:03.605 INFO [stderr]    |
Dec 05 02:56:03.605 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:56:03.605 INFO [stderr] 
Dec 05 02:56:03.617 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 05 02:56:03.620 INFO [stderr] su: No module specific data is present
Dec 05 02:56:04.209 INFO running `"docker" "inspect" "5e53cb6926f5a658bf1684d8eacaf8b7819cb928c4cd1606a6cbe9f29347a60a"`
Dec 05 02:56:04.432 INFO running `"docker" "rm" "-f" "5e53cb6926f5a658bf1684d8eacaf8b7819cb928c4cd1606a6cbe9f29347a60a"`
Dec 05 02:56:04.675 INFO [stdout] 5e53cb6926f5a658bf1684d8eacaf8b7819cb928c4cd1606a6cbe9f29347a60a