[INFO] updating cached repository mau5atron/ip_sniffer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mau5atron/ip_sniffer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mau5atron/ip_sniffer" "work/ex/clippy-test-run/sources/stable/gh/mau5atron/ip_sniffer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mau5atron/ip_sniffer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mau5atron/ip_sniffer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/ip_sniffer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/ip_sniffer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 47a2b8d3bcd2859f6b0f77d5a91a47171e587deb
[INFO] sha for GitHub repo mau5atron/ip_sniffer: 47a2b8d3bcd2859f6b0f77d5a91a47171e587deb
[INFO] validating manifest of mau5atron/ip_sniffer on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mau5atron/ip_sniffer on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mau5atron/ip_sniffer
[INFO] finished frobbing mau5atron/ip_sniffer
[INFO] frobbed toml for mau5atron/ip_sniffer written to work/ex/clippy-test-run/sources/stable/gh/mau5atron/ip_sniffer/Cargo.toml
[INFO] started frobbing mau5atron/ip_sniffer
[INFO] finished frobbing mau5atron/ip_sniffer
[INFO] frobbed toml for mau5atron/ip_sniffer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/ip_sniffer/Cargo.toml
[INFO] crate mau5atron/ip_sniffer has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting mau5atron/ip_sniffer against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/ip_sniffer:/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 -Dclippy::into_iter_on_array" "-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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 022f352cbc655a4f7fe22bac62cc6882149aca909bfa419a7b267279c90b0b2c
[INFO] running `"docker" "start" "-a" "022f352cbc655a4f7fe22bac62cc6882149aca909bfa419a7b267279c90b0b2c"`
[INFO] [stderr]     Checking ip_sniffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]    --> src/main.rs:111:2
[INFO] [stderr]     |
[INFO] [stderr] 111 |     println!("");
[INFO] [stderr]     |     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `flag`
[INFO] [stderr]   --> src/main.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     flag: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:61:3
[INFO] [stderr]    |
[INFO] [stderr] 61 |           match TcpStream::connect((addr, port)){
[INFO] [stderr]    |  _________^
[INFO] [stderr] 62 | |             Ok(_) => {
[INFO] [stderr] 63 | |                 print!(".");
[INFO] [stderr] 64 | |                 // sends output out as shared data 
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |             Err(_) => {}
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if let Ok(_) = TcpStream::connect((addr, port)) {
[INFO] [stderr] 62 |     print!(".");
[INFO] [stderr] 63 |     // sends output out as shared data 
[INFO] [stderr] 64 |     io::stdout().flush().unwrap();
[INFO] [stderr] 65 |     tx.send(port).unwrap();
[INFO] [stderr] 66 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `flag`
[INFO] [stderr]   --> src/main.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     flag: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:61:3
[INFO] [stderr]    |
[INFO] [stderr] 61 |           match TcpStream::connect((addr, port)){
[INFO] [stderr]    |  _________^
[INFO] [stderr] 62 | |             Ok(_) => {
[INFO] [stderr] 63 | |                 print!(".");
[INFO] [stderr] 64 | |                 // sends output out as shared data 
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |             Err(_) => {}
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if let Ok(_) = TcpStream::connect((addr, port)) {
[INFO] [stderr] 62 |     print!(".");
[INFO] [stderr] 63 |     // sends output out as shared data 
[INFO] [stderr] 64 |     io::stdout().flush().unwrap();
[INFO] [stderr] 65 |     tx.send(port).unwrap();
[INFO] [stderr] 66 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "022f352cbc655a4f7fe22bac62cc6882149aca909bfa419a7b267279c90b0b2c"`
[INFO] running `"docker" "rm" "-f" "022f352cbc655a4f7fe22bac62cc6882149aca909bfa419a7b267279c90b0b2c"`
[INFO] [stdout] 022f352cbc655a4f7fe22bac62cc6882149aca909bfa419a7b267279c90b0b2c