[INFO] updating cached repository LFalch/chroma-lists
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LFalch/chroma-lists
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LFalch/chroma-lists" "work/ex/clippy-test-run/sources/stable/gh/LFalch/chroma-lists"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/LFalch/chroma-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LFalch/chroma-lists" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LFalch/chroma-lists"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LFalch/chroma-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bcf703d3b43677fc79894b3b498a12c73b4442e5
[INFO] sha for GitHub repo LFalch/chroma-lists: bcf703d3b43677fc79894b3b498a12c73b4442e5
[INFO] validating manifest of LFalch/chroma-lists 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 LFalch/chroma-lists 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 LFalch/chroma-lists
[INFO] finished frobbing LFalch/chroma-lists
[INFO] frobbed toml for LFalch/chroma-lists written to work/ex/clippy-test-run/sources/stable/gh/LFalch/chroma-lists/Cargo.toml
[INFO] started frobbing LFalch/chroma-lists
[INFO] finished frobbing LFalch/chroma-lists
[INFO] frobbed toml for LFalch/chroma-lists written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LFalch/chroma-lists/Cargo.toml
[INFO] crate LFalch/chroma-lists 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 LFalch/chroma-lists against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/LFalch/chroma-lists:/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] fef1789e4ff9d4d763ce54c2ca5dce6e2f428de034dd3a40cb887dec08640f2c
[INFO] running `"docker" "start" "-a" "fef1789e4ff9d4d763ce54c2ca5dce6e2f428de034dd3a40cb887dec08640f2c"`
[INFO] [stderr]     Checking chroma-lists v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: item `ChromaList` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / impl ChromaList {
[INFO] [stderr] 78  | |     pub fn len(&self) -> usize {
[INFO] [stderr] 79  | |         self.0.iter().map(|l| l.len()).sum()
[INFO] [stderr] 80  | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |     }
[INFO] [stderr] 120 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: item `ChromaList` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:77:1
[INFO] [stderr]     |
[INFO] [stderr] 77  | / impl ChromaList {
[INFO] [stderr] 78  | |     pub fn len(&self) -> usize {
[INFO] [stderr] 79  | |         self.0.iter().map(|l| l.len()).sum()
[INFO] [stderr] 80  | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |     }
[INFO] [stderr] 120 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/main.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let iters = list.into_iter().inspect(|s| if let Some(ref mut o) = output_file {write!(o, "{}", s).unwrap()}).count();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/main.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let iters = list.into_iter().inspect(|s| if let Some(ref mut o) = output_file {write!(o, "{}", s).unwrap()}).count();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: consider removing `.into_iter()`: `list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "fef1789e4ff9d4d763ce54c2ca5dce6e2f428de034dd3a40cb887dec08640f2c"`
[INFO] running `"docker" "rm" "-f" "fef1789e4ff9d4d763ce54c2ca5dce6e2f428de034dd3a40cb887dec08640f2c"`
[INFO] [stdout] fef1789e4ff9d4d763ce54c2ca5dce6e2f428de034dd3a40cb887dec08640f2c