[INFO] crate traverse 0.0.12 is already in cache
[INFO] extracting crate traverse 0.0.12 into work/ex/clippy-test-run/sources/stable/reg/traverse/0.0.12
[INFO] extracting crate traverse 0.0.12 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/traverse/0.0.12
[INFO] validating manifest of traverse-0.0.12 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 traverse-0.0.12 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 traverse-0.0.12
[INFO] finished frobbing traverse-0.0.12
[INFO] frobbed toml for traverse-0.0.12 written to work/ex/clippy-test-run/sources/stable/reg/traverse/0.0.12/Cargo.toml
[INFO] started frobbing traverse-0.0.12
[INFO] finished frobbing traverse-0.0.12
[INFO] frobbed toml for traverse-0.0.12 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/traverse/0.0.12/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 traverse-0.0.12 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/traverse/0.0.12:/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] 439a933407391fb7a7e645872aa6ae1335a94f1f598e505451e7d1c7466dd3c2
[INFO] running `"docker" "start" "-a" "439a933407391fb7a7e645872aa6ae1335a94f1f598e505451e7d1c7466dd3c2"`
[INFO] [stderr] warning: dependency (num) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking traverse v0.0.12 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Counter{ start: start, step: step }
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:19:28
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Counter{ start: start, step: step }
[INFO] [stderr]    |                            ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Range { start: start, stop: stop }
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:48:27
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Range { start: start, stop: stop }
[INFO] [stderr]    |                           ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:77:22
[INFO] [stderr]    |
[INFO] [stderr] 77 |     RangeInclusive { start: start, stop: stop }
[INFO] [stderr]    |                      ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:77:36
[INFO] [stderr]    |
[INFO] [stderr] 77 |     RangeInclusive { start: start, stop: stop }
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:31
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                               ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:43
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:26
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:40
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:52
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                                    ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:211:15
[INFO] [stderr]     |
[INFO] [stderr] 211 |     Iterate { seed: seed, iter: f }
[INFO] [stderr]     |               ^^^^^^^^^^ help: replace it with: `seed`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |         Skip { iter: self, n: n }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:58:28
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Take { iter: self, n: n }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr] warning: impl for `HashMap` should be generalized over different hashers
[INFO] [stderr]   --> src/impls/mod.rs:30:49
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl<K: Hash + Eq, V> FromTraversal<(K, V)> for HashMap<K, V> {
[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] 30 | impl<K: Hash + Eq, V, S: ::std::hash::BuildHasher> FromTraversal<(K, V)> for HashMap<K, V, S> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking quickcheck v0.8.0
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Counter{ start: start, step: step }
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:19:28
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Counter{ start: start, step: step }
[INFO] [stderr]    |                            ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Range { start: start, stop: stop }
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:48:27
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Range { start: start, stop: stop }
[INFO] [stderr]    |                           ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:77:22
[INFO] [stderr]    |
[INFO] [stderr] 77 |     RangeInclusive { start: start, stop: stop }
[INFO] [stderr]    |                      ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/utils.rs:77:36
[INFO] [stderr]    |
[INFO] [stderr] 77 |     RangeInclusive { start: start, stop: stop }
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:31
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                               ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:106:43
[INFO] [stderr]     |
[INFO] [stderr] 106 |     RangeStep { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:26
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: replace it with: `start`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:40
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                        ^^^^^^^^^^ help: replace it with: `stop`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:145:52
[INFO] [stderr]     |
[INFO] [stderr] 145 |     RangeStepInclusive { start: start, stop: stop, step: step }
[INFO] [stderr]     |                                                    ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/utils.rs:211:15
[INFO] [stderr]     |
[INFO] [stderr] 211 |     Iterate { seed: seed, iter: f }
[INFO] [stderr]     |               ^^^^^^^^^^ help: replace it with: `seed`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:54:28
[INFO] [stderr]    |
[INFO] [stderr] 54 |         Skip { iter: self, n: n }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:58:28
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Take { iter: self, n: n }
[INFO] [stderr]    |                            ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench_slice.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `traverse`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: impl for `HashMap` should be generalized over different hashers
[INFO] [stderr]   --> src/impls/mod.rs:30:49
[INFO] [stderr]    |
[INFO] [stderr] 30 | impl<K: Hash + Eq, V> FromTraversal<(K, V)> for HashMap<K, V> {
[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] 30 | impl<K: Hash + Eq, V, S: ::std::hash::BuildHasher> FromTraversal<(K, V)> for HashMap<K, V, S> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]  --> tests/test.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn add_one(x: &u32) -> u32 { *x + 1 }
[INFO] [stderr]   |                   ^^^^ help: consider passing by value instead: `u32`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> tests/test.rs:21:19
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn is_even(x: & &u32) -> bool { **x % 2 == 0 }
[INFO] [stderr]    |                   ^^^^^^ help: consider passing by value instead: `&u32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "439a933407391fb7a7e645872aa6ae1335a94f1f598e505451e7d1c7466dd3c2"`
[INFO] running `"docker" "rm" "-f" "439a933407391fb7a7e645872aa6ae1335a94f1f598e505451e7d1c7466dd3c2"`
[INFO] [stdout] 439a933407391fb7a7e645872aa6ae1335a94f1f598e505451e7d1c7466dd3c2