[INFO] updating cached repository jakobdalsgaard/rust-examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jakobdalsgaard/rust-examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jakobdalsgaard/rust-examples" "work/ex/clippy-test-run/sources/stable/gh/jakobdalsgaard/rust-examples"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jakobdalsgaard/rust-examples'...
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[INFO] running `"git" "clone" "work/cache/sources/gh/jakobdalsgaard/rust-examples" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jakobdalsgaard/rust-examples"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jakobdalsgaard/rust-examples'...
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[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8fc63475160148cdaf75c5f4ed0df6d679186a5f
[INFO] sha for GitHub repo jakobdalsgaard/rust-examples: 8fc63475160148cdaf75c5f4ed0df6d679186a5f
[INFO] validating manifest of jakobdalsgaard/rust-examples 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 jakobdalsgaard/rust-examples 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 jakobdalsgaard/rust-examples
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[INFO] started frobbing jakobdalsgaard/rust-examples
[INFO] finished frobbing jakobdalsgaard/rust-examples
[INFO] frobbed toml for jakobdalsgaard/rust-examples written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jakobdalsgaard/rust-examples/Cargo.toml
[INFO] crate jakobdalsgaard/rust-examples 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 jakobdalsgaard/rust-examples against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/jakobdalsgaard/rust-examples:/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] aaa69f8dfd9718e156f540a5d6be1db68cde09e58deabee176fd93f3567a5d04
[INFO] running `"docker" "start" "-a" "aaa69f8dfd9718e156f540a5d6be1db68cde09e58deabee176fd93f3567a5d04"`
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking futures v0.1.10
[INFO] [stderr]     Checking rust-examples v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> examples/inc.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stderr]  --> examples/inc.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::sync::mpsc::channel;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/stdchannels.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
[INFO] [stderr]   |        ----^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        help: remove this `mut`
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]  --> examples/inc.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   c = c + 64;
[INFO] [stderr]   |   ^^^^^^^^^^ help: replace it with: `c += 64`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[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]  --> examples/stdchannels.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
[INFO] [stderr]   |                ----^^
[INFO] [stderr]   |                |
[INFO] [stderr]   |                help: remove this `mut`
[INFO] [stderr] warning: unused import: `futures::sync::mpsc::Sender`
[INFO] [stderr]  --> examples/futurechannels.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures::sync::mpsc::Sender;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/stdchannels.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |       tx.send(7);
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child2`
[INFO] [stderr]   --> examples/futurechannels.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |   let child2 = thread::spawn(move || {
[INFO] [stderr]    |       ^^^^^^ help: consider using `_child2` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rest`
[INFO] [stderr]   --> examples/futurechannels.rs:66:14
[INFO] [stderr]    |
[INFO] [stderr] 66 |   let (item, rest) = rest.into_future().wait().ok().unwrap();
[INFO] [stderr]    |              ^^^^ help: consider using `_rest` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/futurechannels.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     receiver.map(|i| {
[INFO] [stderr] 15 | |       println!("got: {}", i);
[INFO] [stderr] 16 | |     }).wait();
[INFO] [stderr]    | |______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let () =`
[INFO] [stderr]   --> examples/futurechannels.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   let () = sender.complete(3);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_unit_value)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/futurechannels.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     sender2.send(1).and_then(|tx| { println!("sending 2"); tx.send(2) } ).wait();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/futurechannels.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   sender3.send(5).and_then(|tx| tx.send(6)).wait();
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `"docker" "inspect" "aaa69f8dfd9718e156f540a5d6be1db68cde09e58deabee176fd93f3567a5d04"`
[INFO] running `"docker" "rm" "-f" "aaa69f8dfd9718e156f540a5d6be1db68cde09e58deabee176fd93f3567a5d04"`
[INFO] [stdout] aaa69f8dfd9718e156f540a5d6be1db68cde09e58deabee176fd93f3567a5d04