Dec 18 08:03:15.644 INFO checking Damezuma/rs-simple-udp-echo against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:03:15.644 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Damezuma/rs-simple-udp-echo:/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=forbid" "-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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:03:15.884 INFO [stdout] 85b8fa24b413c46b0c3a63e7fcd603a2125a632cfa7e472d48ad74059d08fc6d
Dec 18 08:03:15.886 INFO running `"docker" "start" "-a" "85b8fa24b413c46b0c3a63e7fcd603a2125a632cfa7e472d48ad74059d08fc6d"`
Dec 18 08:03:16.685 INFO [stderr]     Checking arguments v0.1.0 (/opt/crater/workdir)
Dec 18 08:03:16.879 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 08:03:16.879 INFO [stderr]  --> src/client/mod.rs:1:5
Dec 18 08:03:16.879 INFO [stderr]   |
Dec 18 08:03:16.879 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 18 08:03:16.879 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.879 INFO [stderr]   |
Dec 18 08:03:16.879 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:03:16.879 INFO [stderr] 
Dec 18 08:03:16.879 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 08:03:16.879 INFO [stderr]  --> src/server/mod.rs:1:5
Dec 18 08:03:16.879 INFO [stderr]   |
Dec 18 08:03:16.879 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 18 08:03:16.879 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.879 INFO [stderr] 
Dec 18 08:03:16.880 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 08:03:16.880 INFO [stderr]  --> src/client/mod.rs:1:5
Dec 18 08:03:16.880 INFO [stderr]   |
Dec 18 08:03:16.880 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 18 08:03:16.880 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.880 INFO [stderr]   |
Dec 18 08:03:16.880 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:03:16.880 INFO [stderr] 
Dec 18 08:03:16.880 INFO [stderr] warning: unused import: `std::net::Ipv4Addr`
Dec 18 08:03:16.880 INFO [stderr]  --> src/server/mod.rs:1:5
Dec 18 08:03:16.880 INFO [stderr]   |
Dec 18 08:03:16.880 INFO [stderr] 1 | use std::net::Ipv4Addr;
Dec 18 08:03:16.880 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.880 INFO [stderr] 
Dec 18 08:03:16.948 INFO [stderr] warning: unused variable: `a`
Dec 18 08:03:16.948 INFO [stderr]   --> src/client/mod.rs:25:24
Dec 18 08:03:16.951 INFO [stderr]    |
Dec 18 08:03:16.951 INFO [stderr] 25 |                 Ok((s, a))=>{
Dec 18 08:03:16.951 INFO [stderr]    |                        ^ help: consider using `_a` instead
Dec 18 08:03:16.952 INFO [stderr]    |
Dec 18 08:03:16.952 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:03:16.952 INFO [stderr] 
Dec 18 08:03:16.952 INFO [stderr] warning: unused variable: `a`
Dec 18 08:03:16.952 INFO [stderr]   --> src/client/mod.rs:25:24
Dec 18 08:03:16.952 INFO [stderr]    |
Dec 18 08:03:16.952 INFO [stderr] 25 |                 Ok((s, a))=>{
Dec 18 08:03:16.952 INFO [stderr]    |                        ^ help: consider using `_a` instead
Dec 18 08:03:16.956 INFO [stderr]    |
Dec 18 08:03:16.956 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 08:03:16.956 INFO [stderr] 
Dec 18 08:03:16.962 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.962 INFO [stderr]   --> src/client/mod.rs:18:9
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr] 18 |         self.socket.set_read_timeout(Some(std::time::Duration::from_millis(10)));
Dec 18 08:03:16.962 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:03:16.962 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.962 INFO [stderr] 
Dec 18 08:03:16.962 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.962 INFO [stderr]   --> src/server/mod.rs:20:17
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr] 20 |                 self.socket.send_to(&buffer[0..size], ipv);
Dec 18 08:03:16.962 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.962 INFO [stderr] 
Dec 18 08:03:16.962 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.962 INFO [stderr]   --> src/main.rs:18:9
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr] 18 |         server.recv();
Dec 18 08:03:16.962 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 18 08:03:16.962 INFO [stderr]    |
Dec 18 08:03:16.962 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.962 INFO [stderr] 
Dec 18 08:03:16.962 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.963 INFO [stderr]   --> src/main.rs:39:5
Dec 18 08:03:16.963 INFO [stderr]    |
Dec 18 08:03:16.963 INFO [stderr] 39 |     std::io::stdin().read_line(&mut s);
Dec 18 08:03:16.963 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.963 INFO [stderr]    |
Dec 18 08:03:16.963 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.963 INFO [stderr] 
Dec 18 08:03:16.963 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.963 INFO [stderr]   --> src/main.rs:40:5
Dec 18 08:03:16.963 INFO [stderr]    |
Dec 18 08:03:16.963 INFO [stderr] 40 |     client.send(&s, &SocketAddrV4::new(ip, port_number));
Dec 18 08:03:16.963 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.963 INFO [stderr]    |
Dec 18 08:03:16.963 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.963 INFO [stderr] 
Dec 18 08:03:16.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.965 INFO [stderr]   --> src/client/mod.rs:18:9
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr] 18 |         self.socket.set_read_timeout(Some(std::time::Duration::from_millis(10)));
Dec 18 08:03:16.965 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 08:03:16.965 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.965 INFO [stderr] 
Dec 18 08:03:16.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.965 INFO [stderr]   --> src/server/mod.rs:20:17
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr] 20 |                 self.socket.send_to(&buffer[0..size], ipv);
Dec 18 08:03:16.965 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.965 INFO [stderr] 
Dec 18 08:03:16.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.965 INFO [stderr]   --> src/main.rs:18:9
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr] 18 |         server.recv();
Dec 18 08:03:16.965 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.965 INFO [stderr] 
Dec 18 08:03:16.965 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.965 INFO [stderr]   --> src/main.rs:39:5
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr] 39 |     std::io::stdin().read_line(&mut s);
Dec 18 08:03:16.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.965 INFO [stderr]    |
Dec 18 08:03:16.965 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.965 INFO [stderr] 
Dec 18 08:03:16.967 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 08:03:16.967 INFO [stderr]   --> src/main.rs:40:5
Dec 18 08:03:16.967 INFO [stderr]    |
Dec 18 08:03:16.967 INFO [stderr] 40 |     client.send(&s, &SocketAddrV4::new(ip, port_number));
Dec 18 08:03:16.967 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 08:03:16.967 INFO [stderr]    |
Dec 18 08:03:16.967 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 08:03:16.967 INFO [stderr] 
Dec 18 08:03:16.982 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Dec 18 08:03:17.277 INFO running `"docker" "inspect" "85b8fa24b413c46b0c3a63e7fcd603a2125a632cfa7e472d48ad74059d08fc6d"`
Dec 18 08:03:17.397 INFO running `"docker" "rm" "-f" "85b8fa24b413c46b0c3a63e7fcd603a2125a632cfa7e472d48ad74059d08fc6d"`
Dec 18 08:03:17.473 INFO [stdout] 85b8fa24b413c46b0c3a63e7fcd603a2125a632cfa7e472d48ad74059d08fc6d