[INFO] updating cached repository Voronchikhin/networking_labs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Voronchikhin/networking_labs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Voronchikhin/networking_labs" "work/ex/clippy-test-run/sources/stable/gh/Voronchikhin/networking_labs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Voronchikhin/networking_labs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Voronchikhin/networking_labs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Voronchikhin/networking_labs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Voronchikhin/networking_labs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 892f4113571145b7383298258c3129f4a177dbcf [INFO] sha for GitHub repo Voronchikhin/networking_labs: 892f4113571145b7383298258c3129f4a177dbcf [INFO] validating manifest of Voronchikhin/networking_labs 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 Voronchikhin/networking_labs 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 Voronchikhin/networking_labs [INFO] finished frobbing Voronchikhin/networking_labs [INFO] frobbed toml for Voronchikhin/networking_labs written to work/ex/clippy-test-run/sources/stable/gh/Voronchikhin/networking_labs/Cargo.toml [INFO] started frobbing Voronchikhin/networking_labs [INFO] finished frobbing Voronchikhin/networking_labs [INFO] frobbed toml for Voronchikhin/networking_labs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Voronchikhin/networking_labs/Cargo.toml [INFO] crate Voronchikhin/networking_labs 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 Voronchikhin/networking_labs against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Voronchikhin/networking_labs:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f0da7e2a473ef5951038d69b4fdf570192c76d92d43945b6db6ab172f67928df [INFO] running `"docker" "start" "-a" "f0da7e2a473ef5951038d69b4fdf570192c76d92d43945b6db6ab172f67928df"` [INFO] [stderr] Checking Multicaster v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `net2` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use net2::*; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buffer` [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let buffer = [0u8; 1600]; [INFO] [stderr] | ^^^^^^ help: consider using `_buffer` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:26:17 [INFO] [stderr] | [INFO] [stderr] 26 | Err(e) => println!("sending error"), [INFO] [stderr] | ^ help: consider using `_e` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v4_addr` [INFO] [stderr] --> src/main.rs:40:20 [INFO] [stderr] | [INFO] [stderr] 40 | IpAddr::V4(v4_addr) => UdpBuilder::new_v4(), [INFO] [stderr] | ^^^^^^^ help: consider using `_v4_addr` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v6_addr` [INFO] [stderr] --> src/main.rs:41:20 [INFO] [stderr] | [INFO] [stderr] 41 | IpAddr::V6(v6_addr) => UdpBuilder::new_v6(), [INFO] [stderr] | ^^^^^^^ help: consider using `_v6_addr` instead [INFO] [stderr] [INFO] [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/main.rs:24:30 [INFO] [stderr] | [INFO] [stderr] 24 | match socket.send_to("Hello world!".as_bytes(),&(mcast_group, port)){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"Hello world!"` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::string_lit_as_bytes)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: unused import: `net2` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use net2::*; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buffer` [INFO] [stderr] --> src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let buffer = [0u8; 1600]; [INFO] [stderr] | ^^^^^^ help: consider using `_buffer` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:26:17 [INFO] [stderr] | [INFO] [stderr] 26 | Err(e) => println!("sending error"), [INFO] [stderr] | ^ help: consider using `_e` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v4_addr` [INFO] [stderr] --> src/main.rs:40:20 [INFO] [stderr] | [INFO] [stderr] 40 | IpAddr::V4(v4_addr) => UdpBuilder::new_v4(), [INFO] [stderr] | ^^^^^^^ help: consider using `_v4_addr` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v6_addr` [INFO] [stderr] --> src/main.rs:41:20 [INFO] [stderr] | [INFO] [stderr] 41 | IpAddr::V6(v6_addr) => UdpBuilder::new_v6(), [INFO] [stderr] | ^^^^^^^ help: consider using `_v6_addr` instead [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | socket.set_read_timeout(Option::from(Duration::from_secs(3))); [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: The function/method `str::from_utf8` doesn't need a mutable reference [INFO] [stderr] --> src/main.rs:65:38 [INFO] [stderr] | [INFO] [stderr] 65 | println!("{}",str::from_utf8(&mut buffer).unwrap()); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unnecessary_mut_passed)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 73 | _sender_handle.unwrap().join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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:74:5 [INFO] [stderr] | [INFO] [stderr] 74 | _listener_handle.unwrap().join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: crate `Multicaster` should have a snake case name such as `multicaster` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/main.rs:24:30 [INFO] [stderr] | [INFO] [stderr] 24 | match socket.send_to("Hello world!".as_bytes(),&(mcast_group, port)){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"Hello world!"` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::string_lit_as_bytes)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | socket.set_read_timeout(Option::from(Duration::from_secs(3))); [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: The function/method `str::from_utf8` doesn't need a mutable reference [INFO] [stderr] --> src/main.rs:65:38 [INFO] [stderr] | [INFO] [stderr] 65 | println!("{}",str::from_utf8(&mut buffer).unwrap()); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unnecessary_mut_passed)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 73 | _sender_handle.unwrap().join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [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:74:5 [INFO] [stderr] | [INFO] [stderr] 74 | _listener_handle.unwrap().join(); [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 1.09s [INFO] running `"docker" "inspect" "f0da7e2a473ef5951038d69b4fdf570192c76d92d43945b6db6ab172f67928df"` [INFO] running `"docker" "rm" "-f" "f0da7e2a473ef5951038d69b4fdf570192c76d92d43945b6db6ab172f67928df"` [INFO] [stdout] f0da7e2a473ef5951038d69b4fdf570192c76d92d43945b6db6ab172f67928df