[INFO] crate sparsevec 0.1.0 is already in cache
[INFO] extracting crate sparsevec 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/sparsevec/0.1.0
[INFO] extracting crate sparsevec 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sparsevec/0.1.0
[INFO] validating manifest of sparsevec-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 sparsevec-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 sparsevec-0.1.0
[INFO] finished frobbing sparsevec-0.1.0
[INFO] frobbed toml for sparsevec-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/sparsevec/0.1.0/Cargo.toml
[INFO] started frobbing sparsevec-0.1.0
[INFO] finished frobbing sparsevec-0.1.0
[INFO] frobbed toml for sparsevec-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sparsevec/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 sparsevec-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-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/sparsevec/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] 1a52d5291762f1d824fd1ff1f9fdd0539f23acbe95e72a3f542881cd56f2b10c
[INFO] running `"docker" "start" "-a" "1a52d5291762f1d824fd1ff1f9fdd0539f23acbe95e72a3f542881cd56f2b10c"`
[INFO] [stderr]    Compiling vob v2.0.2
[INFO] [stderr]     Checking packedvec v1.2.0
[INFO] [stderr]     Checking sparsevec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let e = calc_empties(v, empty_val);
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let e = calc_empties(v, empty_val);
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn from(v: &Vec<T>, empty_val: T, row_length: usize) -> SparseVec<T> {
[INFO] [stderr]     |                    ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         if v.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:170:36
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn calc_empties<T: PartialEq>(vec: &Vec<T>, empty_val: T) -> Vob {
[INFO] [stderr]     |                                    ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `vec`
[INFO] [stderr]    --> src/lib.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 172 |     for (i, <item>) in vec.iter().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:181:10
[INFO] [stderr]     |
[INFO] [stderr] 181 |     vec: &Vec<T>,
[INFO] [stderr]     |          ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |     sorted: &Vec<usize>,
[INFO] [stderr]     |             ^^^^^^^^^^^ help: change this to: `&[usize]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:211:40
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn fits<T: PartialEq>(v: &[T], target: &Vec<T>, d: usize, empty_val: T) -> bool {
[INFO] [stderr]     |                                        ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:228:26
[INFO] [stderr]     |
[INFO] [stderr] 228 | fn sort<T: PartialEq>(v: &Vec<T>, empty_val: T, row_length: usize) -> Vec<usize>
[INFO] [stderr]     |                          ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:100:20
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn from(v: &Vec<T>, empty_val: T, row_length: usize) -> SparseVec<T> {
[INFO] [stderr]     |                    ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/lib.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         if v.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `v.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:170:36
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn calc_empties<T: PartialEq>(vec: &Vec<T>, empty_val: T) -> Vob {
[INFO] [stderr]     |                                    ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `vec`
[INFO] [stderr]    --> src/lib.rs:172:14
[INFO] [stderr]     |
[INFO] [stderr] 172 |     for i in 0..vec.len() {
[INFO] [stderr]     |              ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 172 |     for (i, <item>) in vec.iter().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:181:10
[INFO] [stderr]     |
[INFO] [stderr] 181 |     vec: &Vec<T>,
[INFO] [stderr]     |          ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |     sorted: &Vec<usize>,
[INFO] [stderr]     |             ^^^^^^^^^^^ help: change this to: `&[usize]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:211:40
[INFO] [stderr]     |
[INFO] [stderr] 211 | fn fits<T: PartialEq>(v: &[T], target: &Vec<T>, d: usize, empty_val: T) -> bool {
[INFO] [stderr]     |                                        ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/lib.rs:228:26
[INFO] [stderr]     |
[INFO] [stderr] 228 | fn sort<T: PartialEq>(v: &Vec<T>, empty_val: T, row_length: usize) -> Vec<usize>
[INFO] [stderr]     |                          ^^^^^^^ help: change this to: `&[T]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.13s
[INFO] running `"docker" "inspect" "1a52d5291762f1d824fd1ff1f9fdd0539f23acbe95e72a3f542881cd56f2b10c"`
[INFO] running `"docker" "rm" "-f" "1a52d5291762f1d824fd1ff1f9fdd0539f23acbe95e72a3f542881cd56f2b10c"`
[INFO] [stdout] 1a52d5291762f1d824fd1ff1f9fdd0539f23acbe95e72a3f542881cd56f2b10c