[INFO] updating cached repository rofrol/rust-json-pretty-format [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/rofrol/rust-json-pretty-format [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/rofrol/rust-json-pretty-format" "work/ex/clippy-test-run/sources/stable/gh/rofrol/rust-json-pretty-format"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/rofrol/rust-json-pretty-format'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/rofrol/rust-json-pretty-format" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rofrol/rust-json-pretty-format"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rofrol/rust-json-pretty-format'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 46218b59511a1cde0616363a6e650ab07c4e911a [INFO] sha for GitHub repo rofrol/rust-json-pretty-format: 46218b59511a1cde0616363a6e650ab07c4e911a [INFO] validating manifest of rofrol/rust-json-pretty-format 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 rofrol/rust-json-pretty-format 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 rofrol/rust-json-pretty-format [INFO] finished frobbing rofrol/rust-json-pretty-format [INFO] frobbed toml for rofrol/rust-json-pretty-format written to work/ex/clippy-test-run/sources/stable/gh/rofrol/rust-json-pretty-format/Cargo.toml [INFO] started frobbing rofrol/rust-json-pretty-format [INFO] finished frobbing rofrol/rust-json-pretty-format [INFO] frobbed toml for rofrol/rust-json-pretty-format written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/rofrol/rust-json-pretty-format/Cargo.toml [INFO] crate rofrol/rust-json-pretty-format 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 rofrol/rust-json-pretty-format against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/rofrol/rust-json-pretty-format:/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] 3eb20b9629f6536d0003919849a2d543bf982c1b5f042e4f230afc7309e0634e [INFO] running `"docker" "start" "-a" "3eb20b9629f6536d0003919849a2d543bf982c1b5f042e4f230afc7309e0634e"` [INFO] [stderr] Checking rust-json-pretty-format v1.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: passing a unit value to a function [INFO] [stderr] --> src/main.rs:24:31 [INFO] [stderr] | [INFO] [stderr] 24 | .and_then(|output| Ok(fs::write(&output, data)?)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unit_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg [INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead [INFO] [stderr] | [INFO] [stderr] 24 | .and_then(|output| Ok(())) [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: passing a unit value to a function [INFO] [stderr] --> src/main.rs:24:31 [INFO] [stderr] | [INFO] [stderr] 24 | .and_then(|output| Ok(fs::write(&output, data)?)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::unit_arg)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unit_arg [INFO] [stderr] help: if you intended to pass a unit value, use a unit literal instead [INFO] [stderr] | [INFO] [stderr] 24 | .and_then(|output| Ok(())) [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.73s [INFO] running `"docker" "inspect" "3eb20b9629f6536d0003919849a2d543bf982c1b5f042e4f230afc7309e0634e"` [INFO] running `"docker" "rm" "-f" "3eb20b9629f6536d0003919849a2d543bf982c1b5f042e4f230afc7309e0634e"` [INFO] [stdout] 3eb20b9629f6536d0003919849a2d543bf982c1b5f042e4f230afc7309e0634e