[INFO] updating cached repository leshow/concurrent-graph-test-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leshow/concurrent-graph-test-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leshow/concurrent-graph-test-rs" "work/ex/clippy-test-run/sources/stable/gh/leshow/concurrent-graph-test-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/leshow/concurrent-graph-test-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leshow/concurrent-graph-test-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leshow/concurrent-graph-test-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leshow/concurrent-graph-test-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec84b7eb1c6fc41a9a21627c07d50f457f2a00ce
[INFO] sha for GitHub repo leshow/concurrent-graph-test-rs: ec84b7eb1c6fc41a9a21627c07d50f457f2a00ce
[INFO] validating manifest of leshow/concurrent-graph-test-rs 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 leshow/concurrent-graph-test-rs 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 leshow/concurrent-graph-test-rs
[INFO] finished frobbing leshow/concurrent-graph-test-rs
[INFO] frobbed toml for leshow/concurrent-graph-test-rs written to work/ex/clippy-test-run/sources/stable/gh/leshow/concurrent-graph-test-rs/Cargo.toml
[INFO] started frobbing leshow/concurrent-graph-test-rs
[INFO] finished frobbing leshow/concurrent-graph-test-rs
[INFO] frobbed toml for leshow/concurrent-graph-test-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/leshow/concurrent-graph-test-rs/Cargo.toml
[INFO] crate leshow/concurrent-graph-test-rs 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 leshow/concurrent-graph-test-rs 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/leshow/concurrent-graph-test-rs:/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] ba6e5eade0ff085187ef3858ecf1b0f482197a0cb570e2822dba21721475d21d
[INFO] running `"docker" "start" "-a" "ba6e5eade0ff085187ef3858ecf1b0f482197a0cb570e2822dba21721475d21d"`
[INFO] [stderr]     Checking cell-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let ref children = parent.0.read().expect("parent read lock").children;
[INFO] [stderr]    |     ----^^^^^^^^^^^^------------------------------------------------------- help: try: `let children = &parent.0.read().expect("parent read lock").children;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let ref children = parent.0.read().expect("parent read lock").children;
[INFO] [stderr]    |     ----^^^^^^^^^^^^------------------------------------------------------- help: try: `let children = &parent.0.read().expect("parent read lock").children;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "ba6e5eade0ff085187ef3858ecf1b0f482197a0cb570e2822dba21721475d21d"`
[INFO] running `"docker" "rm" "-f" "ba6e5eade0ff085187ef3858ecf1b0f482197a0cb570e2822dba21721475d21d"`
[INFO] [stdout] ba6e5eade0ff085187ef3858ecf1b0f482197a0cb570e2822dba21721475d21d