[INFO] crate dlx 0.1.0 is already in cache
[INFO] extracting crate dlx 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/dlx/0.1.0
[INFO] extracting crate dlx 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dlx/0.1.0
[INFO] validating manifest of dlx-0.1.0 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 dlx-0.1.0 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 dlx-0.1.0
[INFO] finished frobbing dlx-0.1.0
[INFO] frobbed toml for dlx-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/dlx/0.1.0/Cargo.toml
[INFO] started frobbing dlx-0.1.0
[INFO] finished frobbing dlx-0.1.0
[INFO] frobbed toml for dlx-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dlx/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 dlx-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/dlx/0.1.0:/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] e4edcd505a1ae385376aa7d25ceb47a3c2929d3afdf93f85f221a60a0bd55a06
[INFO] running `"docker" "start" "-a" "e4edcd505a1ae385376aa7d25ceb47a3c2929d3afdf93f85f221a60a0bd55a06"`
[INFO] [stderr]     Checking dlx v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/lib.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for i in 1..ncols + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: use: `1..=ncols`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/lib.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for i in 1..ncols + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: use: `1..=ncols`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `needless_range_loop` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> examples/sudoku.rs:62:44
[INFO] [stderr]    |
[INFO] [stderr] 62 | #[cfg_attr(feature = "cargo-clippy", allow(needless_range_loop))]
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::needless_range_loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> examples/sudoku.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         /// Convert the rows from the exact cover matrix into a
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `needless_range_loop` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]   --> examples/sudoku.rs:62:44
[INFO] [stderr]    |
[INFO] [stderr] 62 | #[cfg_attr(feature = "cargo-clippy", allow(needless_range_loop))]
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^ help: change it to: `clippy::needless_range_loop`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "e4edcd505a1ae385376aa7d25ceb47a3c2929d3afdf93f85f221a60a0bd55a06"`
[INFO] running `"docker" "rm" "-f" "e4edcd505a1ae385376aa7d25ceb47a3c2929d3afdf93f85f221a60a0bd55a06"`
[INFO] [stdout] e4edcd505a1ae385376aa7d25ceb47a3c2929d3afdf93f85f221a60a0bd55a06