[INFO] updating cached repository furuhama/network_programming [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/furuhama/network_programming [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/furuhama/network_programming" "work/ex/clippy-test-run/sources/stable/gh/furuhama/network_programming"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/furuhama/network_programming'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/furuhama/network_programming" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/furuhama/network_programming"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/furuhama/network_programming'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4a3a9c89eedc49809c45d89ab15b4c3e7f93db24 [INFO] sha for GitHub repo furuhama/network_programming: 4a3a9c89eedc49809c45d89ab15b4c3e7f93db24 [INFO] validating manifest of furuhama/network_programming 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 furuhama/network_programming 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 furuhama/network_programming [INFO] finished frobbing furuhama/network_programming [INFO] frobbed toml for furuhama/network_programming written to work/ex/clippy-test-run/sources/stable/gh/furuhama/network_programming/Cargo.toml [INFO] started frobbing furuhama/network_programming [INFO] finished frobbing furuhama/network_programming [INFO] frobbed toml for furuhama/network_programming written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/furuhama/network_programming/Cargo.toml [INFO] crate furuhama/network_programming 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 furuhama/network_programming 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-6/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/furuhama/network_programming:/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] d9ed49db3e0322accec6f2997307f1458eeab4d955cba476b207b370e7f505ee [INFO] running `"docker" "start" "-a" "d9ed49db3e0322accec6f2997307f1458eeab4d955cba476b207b370e7f505ee"` [INFO] [stderr] Checking network_programming v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_client.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | stream.write(input.as_bytes()).expect("Failed to write to server"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::unused_io_amount)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_echo_server.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | stream.write(&buf[..bytes_read])?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_client.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | stream.write(input.as_bytes()).expect("Failed to write to server"); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::unused_io_amount)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_echo_server.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | stream.write(&buf[..bytes_read])?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_echo_random_server.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | stream.write(&buf[..bytes_read])?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead [INFO] [stderr] --> src/network/tcp_echo_random_server.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | stream.write(&buf[..bytes_read])?; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] error: Could not compile `network_programming`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] error: Could not compile `network_programming`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "d9ed49db3e0322accec6f2997307f1458eeab4d955cba476b207b370e7f505ee"` [INFO] running `"docker" "rm" "-f" "d9ed49db3e0322accec6f2997307f1458eeab4d955cba476b207b370e7f505ee"` [INFO] [stdout] d9ed49db3e0322accec6f2997307f1458eeab4d955cba476b207b370e7f505ee