[INFO] updating cached repository bradurani/rust-iterator-to-hash-map
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bradurani/rust-iterator-to-hash-map
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bradurani/rust-iterator-to-hash-map" "work/ex/clippy-test-run/sources/stable/gh/bradurani/rust-iterator-to-hash-map"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/bradurani/rust-iterator-to-hash-map'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bradurani/rust-iterator-to-hash-map" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/bradurani/rust-iterator-to-hash-map"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/bradurani/rust-iterator-to-hash-map'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f4e102e0aad3fa07b4ed8a1247d1a39983fbab2
[INFO] sha for GitHub repo bradurani/rust-iterator-to-hash-map: 8f4e102e0aad3fa07b4ed8a1247d1a39983fbab2
[INFO] validating manifest of bradurani/rust-iterator-to-hash-map 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 bradurani/rust-iterator-to-hash-map 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 bradurani/rust-iterator-to-hash-map
[INFO] finished frobbing bradurani/rust-iterator-to-hash-map
[INFO] frobbed toml for bradurani/rust-iterator-to-hash-map written to work/ex/clippy-test-run/sources/stable/gh/bradurani/rust-iterator-to-hash-map/Cargo.toml
[INFO] started frobbing bradurani/rust-iterator-to-hash-map
[INFO] finished frobbing bradurani/rust-iterator-to-hash-map
[INFO] frobbed toml for bradurani/rust-iterator-to-hash-map written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/bradurani/rust-iterator-to-hash-map/Cargo.toml
[INFO] crate bradurani/rust-iterator-to-hash-map 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 bradurani/rust-iterator-to-hash-map 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/bradurani/rust-iterator-to-hash-map:/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] db40fe9648d5434b8b291cdd1e5cb91b29cbaaf0823c18c9d4575152df36e40b
[INFO] running `"docker" "start" "-a" "db40fe9648d5434b8b291cdd1e5cb91b29cbaaf0823c18c9d4575152df36e40b"`
[INFO] [stderr]     Checking iterator_to_hash_map v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> tests/lib.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         i.first_name.to_string() + &" " + &i.last_name.to_string()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^----
[INFO] [stderr]    |                                    |
[INFO] [stderr]    |                                    help: use the right value directly: `" "`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::op_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> tests/lib.rs:38:16
[INFO] [stderr]    |
[INFO] [stderr] 38 |     assert_eq!(map.get(&1).unwrap(), hm.get(&1).unwrap());
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^ help: try this: `&map[&1]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> tests/lib.rs:38:38
[INFO] [stderr]    |
[INFO] [stderr] 38 |     assert_eq!(map.get(&1).unwrap(), hm.get(&1).unwrap());
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: try this: `&hm[&1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> tests/lib.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |     assert_eq!(map.get(&2).unwrap(), hm.get(&2).unwrap());
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^ help: try this: `&map[&2]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> tests/lib.rs:39:38
[INFO] [stderr]    |
[INFO] [stderr] 39 |     assert_eq!(map.get(&2).unwrap(), hm.get(&2).unwrap());
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: try this: `&hm[&2]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "db40fe9648d5434b8b291cdd1e5cb91b29cbaaf0823c18c9d4575152df36e40b"`
[INFO] running `"docker" "rm" "-f" "db40fe9648d5434b8b291cdd1e5cb91b29cbaaf0823c18c9d4575152df36e40b"`
[INFO] [stdout] db40fe9648d5434b8b291cdd1e5cb91b29cbaaf0823c18c9d4575152df36e40b