[INFO] updating cached repository Givup/tick_tack_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Givup/tick_tack_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Givup/tick_tack_rust" "work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Givup/tick_tack_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Givup/tick_tack_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Givup/tick_tack_rust" "work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Givup/tick_tack_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Givup/tick_tack_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0a3d5f766d0b8687e9e4a4409f0ed79fe230e925
[INFO] sha for GitHub repo Givup/tick_tack_rust: 0a3d5f766d0b8687e9e4a4409f0ed79fe230e925
[INFO] validating manifest of Givup/tick_tack_rust on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Givup/tick_tack_rust on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Givup/tick_tack_rust
[INFO] finished frobbing Givup/tick_tack_rust
[INFO] frobbed toml for Givup/tick_tack_rust written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Givup/tick_tack_rust/Cargo.toml
[INFO] started frobbing Givup/tick_tack_rust
[INFO] finished frobbing Givup/tick_tack_rust
[INFO] frobbed toml for Givup/tick_tack_rust written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Givup/tick_tack_rust/Cargo.toml
[INFO] crate Givup/tick_tack_rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Givup/tick_tack_rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Givup/tick_tack_rust:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5b476af7b701a6ab38640c3b9581b407e23fc63f349864ca1cd7a5b07549ac71
[INFO] running `"docker" "start" "-a" "5b476af7b701a6ab38640c3b9581b407e23fc63f349864ca1cd7a5b07549ac71"`
[INFO] [stderr]     Checking tick_tack_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/game.rs:45:14
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if let Ok((size, addr)) = self.socket.recv_from(&mut buffer) {
[INFO] [stderr]    |                    ^^^^ help: consider using `_size` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet_size`
[INFO] [stderr]   --> src/game.rs:96:15
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 if let Ok(packet_size) = self.socket.recv(&mut buffer) {
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: consider using `_packet_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/game.rs:45:14
[INFO] [stderr]    |
[INFO] [stderr] 45 |         if let Ok((size, addr)) = self.socket.recv_from(&mut buffer) {
[INFO] [stderr]    |                    ^^^^ help: consider using `_size` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `packet_size`
[INFO] [stderr]   --> src/game.rs:96:15
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 if let Ok(packet_size) = self.socket.recv(&mut buffer) {
[INFO] [stderr]    |                           ^^^^^^^^^^^ help: consider using `_packet_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:57:7
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut socket = UdpSocket::bind("localhost:0").unwrap();
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/game.rs:57:7
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut socket = UdpSocket::bind("localhost:0").unwrap();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "5b476af7b701a6ab38640c3b9581b407e23fc63f349864ca1cd7a5b07549ac71"`
[INFO] running `"docker" "rm" "-f" "5b476af7b701a6ab38640c3b9581b407e23fc63f349864ca1cd7a5b07549ac71"`
[INFO] [stdout] 5b476af7b701a6ab38640c3b9581b407e23fc63f349864ca1cd7a5b07549ac71