[INFO] crate hashmap_to_hashmap 0.9.0 is already in cache
[INFO] extracting crate hashmap_to_hashmap 0.9.0 into work/ex/clippy-test-run/sources/stable/reg/hashmap_to_hashmap/0.9.0
[INFO] extracting crate hashmap_to_hashmap 0.9.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hashmap_to_hashmap/0.9.0
[INFO] validating manifest of hashmap_to_hashmap-0.9.0 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 hashmap_to_hashmap-0.9.0 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 hashmap_to_hashmap-0.9.0
[INFO] finished frobbing hashmap_to_hashmap-0.9.0
[INFO] frobbed toml for hashmap_to_hashmap-0.9.0 written to work/ex/clippy-test-run/sources/stable/reg/hashmap_to_hashmap/0.9.0/Cargo.toml
[INFO] started frobbing hashmap_to_hashmap-0.9.0
[INFO] finished frobbing hashmap_to_hashmap-0.9.0
[INFO] frobbed toml for hashmap_to_hashmap-0.9.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hashmap_to_hashmap/0.9.0/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 hashmap_to_hashmap-0.9.0 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/hashmap_to_hashmap/0.9.0:/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] a3591084bf3afb9f24cfcbc1031320aa7066a93d1f1c6f8157804b7ba26e373f
[INFO] running `"docker" "start" "-a" "a3591084bf3afb9f24cfcbc1031320aa7066a93d1f1c6f8157804b7ba26e373f"`
[INFO] [stderr]     Checking hashmap_to_hashmap v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: impl for `HashMap` should be generalized over different hashers
[INFO] [stderr]  --> src/lib.rs:8:117
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl <PK: Hash+Eq, PV, NK: Hash+Eq, NV, FK: Fn(&PK, &PV)->NK, FV: Fn(&PK, &PV)->NV> Map<PK, PV, NK, NV, FK, FV> for HashMap<PK, PV> {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::implicit_hasher)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
[INFO] [stderr] help: consider adding a type parameter
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl <PK: Hash+Eq, PV, NK: Hash+Eq, NV, FK: Fn(&PK, &PV)->NK, FV: Fn(&PK, &PV)->NV, S: ::std::hash::BuildHasher> Map<PK, PV, NK, NV, FK, FV> for HashMap<PK, PV, S> {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: impl for `HashMap` should be generalized over different hashers
[INFO] [stderr]  --> src/lib.rs:8:117
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl <PK: Hash+Eq, PV, NK: Hash+Eq, NV, FK: Fn(&PK, &PV)->NK, FV: Fn(&PK, &PV)->NV> Map<PK, PV, NK, NV, FK, FV> for HashMap<PK, PV> {
[INFO] [stderr]   |                                                                                                                     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::implicit_hasher)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
[INFO] [stderr] help: consider adding a type parameter
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl <PK: Hash+Eq, PV, NK: Hash+Eq, NV, FK: Fn(&PK, &PV)->NK, FV: Fn(&PK, &PV)->NV, S: ::std::hash::BuildHasher> Map<PK, PV, NK, NV, FK, FV> for HashMap<PK, PV, S> {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/lib.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |                             |k, v| k.to_string() + &"-" + &v.first_name + &" " + &v.last_name);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------------
[INFO] [stderr]    |                                                                                  |
[INFO] [stderr]    |                                                                                  help: use the right value directly: `v.last_name`
[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: taken reference of right operand
[INFO] [stderr]   --> src/lib.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |                             |k, v| k.to_string() + &"-" + &v.first_name + &" " + &v.last_name);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----
[INFO] [stderr]    |                                                                           |
[INFO] [stderr]    |                                                                           help: use the right value directly: `" "`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/lib.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |                             |k, v| k.to_string() + &"-" + &v.first_name + &" " + &v.last_name);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^-------------
[INFO] [stderr]    |                                                           |
[INFO] [stderr]    |                                                           help: use the right value directly: `v.first_name`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
[INFO] [stderr] 
[INFO] [stderr] warning: taken reference of right operand
[INFO] [stderr]   --> src/lib.rs:50:36
[INFO] [stderr]    |
[INFO] [stderr] 50 |                             |k, v| k.to_string() + &"-" + &v.first_name + &" " + &v.last_name);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^----
[INFO] [stderr]    |                                                    |
[INFO] [stderr]    |                                                    help: use the right value directly: `"-"`
[INFO] [stderr]    |
[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]   --> src/lib.rs:51:20
[INFO] [stderr]    |
[INFO] [stderr] 51 |         assert_eq!(new_map.get(&1).unwrap(), expected.get(&1).unwrap());
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&new_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]   --> src/lib.rs:51:46
[INFO] [stderr]    |
[INFO] [stderr] 51 |         assert_eq!(new_map.get(&1).unwrap(), expected.get(&1).unwrap());
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&expected[&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]   --> src/lib.rs:52:20
[INFO] [stderr]    |
[INFO] [stderr] 52 |         assert_eq!(new_map.get(&2).unwrap(), expected.get(&2).unwrap());
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&new_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]   --> src/lib.rs:52:46
[INFO] [stderr]    |
[INFO] [stderr] 52 |         assert_eq!(new_map.get(&2).unwrap(), expected.get(&2).unwrap());
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&expected[&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 1.39s
[INFO] running `"docker" "inspect" "a3591084bf3afb9f24cfcbc1031320aa7066a93d1f1c6f8157804b7ba26e373f"`
[INFO] running `"docker" "rm" "-f" "a3591084bf3afb9f24cfcbc1031320aa7066a93d1f1c6f8157804b7ba26e373f"`
[INFO] [stdout] a3591084bf3afb9f24cfcbc1031320aa7066a93d1f1c6f8157804b7ba26e373f