[INFO] cloning repository sebglazebrook/udp-server
[INFO] running `"git" "clone" "--bare" "git://github.com/sebglazebrook/udp-server.git" "work/cache/sources/gh/sebglazebrook/udp-server"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/sebglazebrook/udp-server'...
[INFO] running `"git" "clone" "work/cache/sources/gh/sebglazebrook/udp-server" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/sebglazebrook/udp-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/sebglazebrook/udp-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sebglazebrook/udp-server" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/sebglazebrook/udp-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/sebglazebrook/udp-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77705f72eee63562a186a99acf53acc60ee7d82e
[INFO] sha for GitHub repo sebglazebrook/udp-server: 77705f72eee63562a186a99acf53acc60ee7d82e
[INFO] validating manifest of sebglazebrook/udp-server on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sebglazebrook/udp-server on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sebglazebrook/udp-server
[INFO] finished frobbing sebglazebrook/udp-server
[INFO] frobbed toml for sebglazebrook/udp-server written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/sebglazebrook/udp-server/Cargo.toml
[INFO] started frobbing sebglazebrook/udp-server
[INFO] finished frobbing sebglazebrook/udp-server
[INFO] frobbed toml for sebglazebrook/udp-server written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/sebglazebrook/udp-server/Cargo.toml
[INFO] crate sebglazebrook/udp-server has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sebglazebrook/udp-server against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-7/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/sebglazebrook/udp-server:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f28bce60c333ee4da25f8c09619fac4834a79579b5b6e435b4329489ccd3644a
[INFO] running `"docker" "start" "-a" "f28bce60c333ee4da25f8c09619fac4834a79579b5b6e435b4329489ccd3644a"`
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking ctrlc v3.1.0
[INFO] [stderr]     Checking udp-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let mut socket = try!(UdpSocket::bind("0.0.0.0:34254"));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         self.start_listening();
[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:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |           ctrlc::set_handler(move || {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 32 | |             running.store(false, Ordering::SeqCst); 
[INFO] [stderr] 33 | |         });
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let mut socket = try!(UdpSocket::bind("0.0.0.0:34254"));
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         self.start_listening();
[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:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |           ctrlc::set_handler(move || {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 32 | |             running.store(false, Ordering::SeqCst); 
[INFO] [stderr] 33 | |         });
[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 5.32s
[INFO] running `"docker" "inspect" "f28bce60c333ee4da25f8c09619fac4834a79579b5b6e435b4329489ccd3644a"`
[INFO] running `"docker" "rm" "-f" "f28bce60c333ee4da25f8c09619fac4834a79579b5b6e435b4329489ccd3644a"`
[INFO] [stdout] f28bce60c333ee4da25f8c09619fac4834a79579b5b6e435b4329489ccd3644a