[INFO] crate quantized-density-fields 0.2.3 is already in cache
[INFO] extracting crate quantized-density-fields 0.2.3 into work/ex/clippy-test-run/sources/stable/reg/quantized-density-fields/0.2.3
[INFO] extracting crate quantized-density-fields 0.2.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/quantized-density-fields/0.2.3
[INFO] validating manifest of quantized-density-fields-0.2.3 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 quantized-density-fields-0.2.3 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 quantized-density-fields-0.2.3
[INFO] finished frobbing quantized-density-fields-0.2.3
[INFO] frobbed toml for quantized-density-fields-0.2.3 written to work/ex/clippy-test-run/sources/stable/reg/quantized-density-fields/0.2.3/Cargo.toml
[INFO] started frobbing quantized-density-fields-0.2.3
[INFO] finished frobbing quantized-density-fields-0.2.3
[INFO] frobbed toml for quantized-density-fields-0.2.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/quantized-density-fields/0.2.3/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 quantized-density-fields-0.2.3 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/reg/quantized-density-fields/0.2.3:/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] b0e2df123b935732ed277f07064858ff8bd33239310ee48fc8871788d0ae2c38
[INFO] running `"docker" "start" "-a" "b0e2df123b935732ed277f07064858ff8bd33239310ee48fc8871788d0ae2c38"`
[INFO] [stderr]     Checking uuid v0.7.2
[INFO] [stderr]     Checking quantized-density-fields v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> src/qdf/mod.rs:416:57
[INFO] [stderr]     |
[INFO] [stderr] 416 |     pub fn increase_space_density(&mut self, id: ID) -> Result<(ID, Vec<ID>, Vec<(ID, ID)>)> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/lod/tests.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |       if let None = lod.try_get_level(root) {
[INFO] [stderr]    |  _____-      ^^^^
[INFO] [stderr] 11 | |         assert!(false);
[INFO] [stderr] 12 | |     }
[INFO] [stderr]    | |_____- help: try this: `if lod.try_get_level(root).is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 34
[INFO] [stderr]    --> src/qdf/tests.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | / fn test_2d() {
[INFO] [stderr] 8   | |     let (mut qdf, root) = QDF::new(2, 9);
[INFO] [stderr] 9   | |     assert!(qdf.space_exists(root));
[INFO] [stderr] 10  | |     if let None = qdf.try_get_space(root) {
[INFO] [stderr] ...   |
[INFO] [stderr] 111 | |     }
[INFO] [stderr] 112 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]   --> src/qdf/tests.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |       if let None = qdf.try_get_space(root) {
[INFO] [stderr]    |  _____-      ^^^^
[INFO] [stderr] 11 | |         assert!(false);
[INFO] [stderr] 12 | |     }
[INFO] [stderr]    | |_____- help: try this: `if qdf.try_get_space(root).is_none()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]    --> src/qdf/mod.rs:416:57
[INFO] [stderr]     |
[INFO] [stderr] 416 |     pub fn increase_space_density(&mut self, id: ID) -> Result<(ID, Vec<ID>, Vec<(ID, ID)>)> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
[INFO] running `"docker" "inspect" "b0e2df123b935732ed277f07064858ff8bd33239310ee48fc8871788d0ae2c38"`
[INFO] running `"docker" "rm" "-f" "b0e2df123b935732ed277f07064858ff8bd33239310ee48fc8871788d0ae2c38"`
[INFO] [stdout] b0e2df123b935732ed277f07064858ff8bd33239310ee48fc8871788d0ae2c38