[INFO] crate sknife 0.2.2 is already in cache
[INFO] extracting crate sknife 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/sknife/0.2.2
[INFO] extracting crate sknife 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sknife/0.2.2
[INFO] validating manifest of sknife-0.2.2 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 sknife-0.2.2 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 sknife-0.2.2
[INFO] finished frobbing sknife-0.2.2
[INFO] frobbed toml for sknife-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/sknife/0.2.2/Cargo.toml
[INFO] started frobbing sknife-0.2.2
[INFO] finished frobbing sknife-0.2.2
[INFO] frobbed toml for sknife-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/sknife/0.2.2/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 sknife-0.2.2 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/sknife/0.2.2:/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] ddd0fca6ec99e8a4a31284663f0d86cd0882c951615151d93060729da5259b90
[INFO] running `"docker" "start" "-a" "ddd0fca6ec99e8a4a31284663f0d86cd0882c951615151d93060729da5259b90"`
[INFO] [stderr]     Checking sknife v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/collection/zip.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/any.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let mut list = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/any.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/count.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut list: Vec<i32> = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/count.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/find.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut list = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/find.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/any.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/any.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/count.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/count.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/find.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/find.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/flatmap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/flatmap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/collection/reduce.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     loop {
[INFO] [stderr] 37 | |         match iterator.next() {
[INFO] [stderr] 38 | |             Some(v) => { 
[INFO] [stderr] 39 | |                 accum = reduce_fn(accum, v.clone()); 
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         }
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____^ help: try: `while let Some(v) = iterator.next() { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/reduce.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/reduce.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/zip.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/zip.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/any.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/count.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/find.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/flatmap.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/collection/zip.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/any.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_attributes)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/any.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/count.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/count.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/find.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/find.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/flatmap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/flatmap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/collection/reduce.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     loop {
[INFO] [stderr] 37 | |         match iterator.next() {
[INFO] [stderr] 38 | |             Some(v) => { 
[INFO] [stderr] 39 | |                 accum = reduce_fn(accum, v.clone()); 
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         }
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____^ help: try: `while let Some(v) = iterator.next() { .. }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/reduce.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/reduce.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/collection/zip.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]  --> src/collection/zip.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/collections_map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/collections_reduce.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `sknife`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `sknife`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/collections_flatmap.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 `sknife`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> tests/collections_any.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> tests/collections_find.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut list = vec![1, 3, 4, 7, 3, 9];
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ddd0fca6ec99e8a4a31284663f0d86cd0882c951615151d93060729da5259b90"`
[INFO] running `"docker" "rm" "-f" "ddd0fca6ec99e8a4a31284663f0d86cd0882c951615151d93060729da5259b90"`
[INFO] [stdout] ddd0fca6ec99e8a4a31284663f0d86cd0882c951615151d93060729da5259b90