[INFO] updating cached repository nayato/length-push
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nayato/length-push
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nayato/length-push" "work/ex/clippy-test-run/sources/stable/gh/nayato/length-push"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/nayato/length-push'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nayato/length-push" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nayato/length-push"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nayato/length-push'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e11a3187492a061d533f3a5b3c082e1d80a05539
[INFO] sha for GitHub repo nayato/length-push: e11a3187492a061d533f3a5b3c082e1d80a05539
[INFO] validating manifest of nayato/length-push 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 nayato/length-push 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 nayato/length-push
[INFO] finished frobbing nayato/length-push
[INFO] frobbed toml for nayato/length-push written to work/ex/clippy-test-run/sources/stable/gh/nayato/length-push/Cargo.toml
[INFO] started frobbing nayato/length-push
[INFO] finished frobbing nayato/length-push
[INFO] frobbed toml for nayato/length-push written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nayato/length-push/Cargo.toml
[INFO] crate nayato/length-push 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 nayato/length-push 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/gh/nayato/length-push:/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] 5a9d45e21085c50086bfeeabd1b36e3ad82195214f42f335708f5c41d86407af
[INFO] running `"docker" "start" "-a" "5a9d45e21085c50086bfeeabd1b36e3ad82195214f42f335708f5c41d86407af"`
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling syn v0.14.6
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]     Checking sct v0.3.0
[INFO] [stderr]     Checking webpki v0.18.1
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking rustls v0.12.0
[INFO] [stderr]     Checking tokio-rustls v0.5.0
[INFO] [stderr]     Checking length-push v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stderr]  --> src/error.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unused_doc_comment)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stderr]  --> src/error.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unused_doc_comment)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/counters.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     monitor_thread
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/counters.rs:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |       let monitor_thread = thread::Builder::new()
[INFO] [stderr]    |  __________________________^
[INFO] [stderr] 68 | |         .name("monitor".to_string())
[INFO] [stderr] 69 | |         .spawn(move || {
[INFO] [stderr] 70 | |             thread::sleep(Duration::from_secs(warmup_seconds));
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |         })
[INFO] [stderr] 96 | |         .unwrap();
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `codec::LengthCodec`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | use codec::LengthCodec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/counters.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     monitor_thread
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/counters.rs:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |       let monitor_thread = thread::Builder::new()
[INFO] [stderr]    |  __________________________^
[INFO] [stderr] 68 | |         .name("monitor".to_string())
[INFO] [stderr] 69 | |         .spawn(move || {
[INFO] [stderr] 70 | |             thread::sleep(Duration::from_secs(warmup_seconds));
[INFO] [stderr] ...  |
[INFO] [stderr] 95 | |         })
[INFO] [stderr] 96 | |         .unwrap();
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `codec::LengthCodec`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | use codec::LengthCodec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/main.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     offset: usize,
[INFO] [stderr]    |     ^^^^^^ help: consider using `_offset` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LengthCodec`
[INFO] [stderr]  --> src/codec.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct LengthCodec {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/codec.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> LengthCodec {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `counters::PerfCounters`
[INFO] [stderr]   --> src/counters.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     pub fn new() -> PerfCounters {
[INFO] [stderr] 22 | |         PerfCounters {
[INFO] [stderr] 23 | |             req: AtomicUsize::new(0),
[INFO] [stderr] 24 | |             lat: AtomicUsize::new(0),
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         }
[INFO] [stderr] 28 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `offset`
[INFO] [stderr]   --> src/main.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     offset: usize,
[INFO] [stderr]    |     ^^^^^^ help: consider using `_offset` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LengthCodec`
[INFO] [stderr]  --> src/codec.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct LengthCodec {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/codec.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new() -> LengthCodec {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `counters::PerfCounters`
[INFO] [stderr]   --> src/counters.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     pub fn new() -> PerfCounters {
[INFO] [stderr] 22 | |         PerfCounters {
[INFO] [stderr] 23 | |             req: AtomicUsize::new(0),
[INFO] [stderr] 24 | |             lat: AtomicUsize::new(0),
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         }
[INFO] [stderr] 28 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.42s
[INFO] running `"docker" "inspect" "5a9d45e21085c50086bfeeabd1b36e3ad82195214f42f335708f5c41d86407af"`
[INFO] running `"docker" "rm" "-f" "5a9d45e21085c50086bfeeabd1b36e3ad82195214f42f335708f5c41d86407af"`
[INFO] [stdout] 5a9d45e21085c50086bfeeabd1b36e3ad82195214f42f335708f5c41d86407af