[INFO] crate cargo-expect 0.1.1 is already in cache
[INFO] extracting crate cargo-expect 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/cargo-expect/0.1.1
[INFO] extracting crate cargo-expect 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-expect/0.1.1
[INFO] validating manifest of cargo-expect-0.1.1 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 cargo-expect-0.1.1 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 cargo-expect-0.1.1
[INFO] finished frobbing cargo-expect-0.1.1
[INFO] frobbed toml for cargo-expect-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/cargo-expect/0.1.1/Cargo.toml
[INFO] started frobbing cargo-expect-0.1.1
[INFO] finished frobbing cargo-expect-0.1.1
[INFO] frobbed toml for cargo-expect-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/cargo-expect/0.1.1/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 cargo-expect-0.1.1 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/reg/cargo-expect/0.1.1:/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] d767f03e389e48d589cd07b7f0f75a2c8de7c617658e17be448c3e058547c5c3
[INFO] running `"docker" "start" "-a" "d767f03e389e48d589cd07b7f0f75a2c8de7c617658e17be448c3e058547c5c3"`
[INFO] [stderr]     Checking expectation-shared v0.1.0
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking cargo-expect v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/command.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn tcp_listen() -> IoResult<(String, Receiver<(String, Vec<EResult>)>)> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/command.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                         let _ = sender.send(out);
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/command.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let _ = sender.send(());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/command.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 | /     loop {
[INFO] [stderr] 132 | |         if let Some((name, results)) = messages.try_recv() {
[INFO] [stderr] 133 | |             let rs: Vec<_> = results
[INFO] [stderr] 134 | |                 .into_iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |         }
[INFO] [stderr] 145 | |     }
[INFO] [stderr]     | |_____^ help: try: `while let Some((name, results)) = messages.try_recv() { .. }`
[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: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/command.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 | /     loop {
[INFO] [stderr] 181 | |         if let Some((name, results)) = messages.try_recv() {
[INFO] [stderr] 182 | |             ::output::print_results(&name, &results, verbose);
[INFO] [stderr] 183 | |             total_results.push((name, results));
[INFO] [stderr] ...   |
[INFO] [stderr] 186 | |         }
[INFO] [stderr] 187 | |     }
[INFO] [stderr]     | |_____^ help: try: `while let Some((name, results)) = messages.try_recv() { .. }`
[INFO] [stderr]     |
[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: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/command.rs:24:24
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn tcp_listen() -> IoResult<(String, Receiver<(String, Vec<EResult>)>)> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/command.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                         let _ = sender.send(out);
[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: this let-binding has unit value. Consider omitting `let _ =`
[INFO] [stderr]   --> src/command.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let _ = sender.send(());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/command.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 | /     loop {
[INFO] [stderr] 132 | |         if let Some((name, results)) = messages.try_recv() {
[INFO] [stderr] 133 | |             let rs: Vec<_> = results
[INFO] [stderr] 134 | |                 .into_iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |         }
[INFO] [stderr] 145 | |     }
[INFO] [stderr]     | |_____^ help: try: `while let Some((name, results)) = messages.try_recv() { .. }`
[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: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/command.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 | /     loop {
[INFO] [stderr] 181 | |         if let Some((name, results)) = messages.try_recv() {
[INFO] [stderr] 182 | |             ::output::print_results(&name, &results, verbose);
[INFO] [stderr] 183 | |             total_results.push((name, results));
[INFO] [stderr] ...   |
[INFO] [stderr] 186 | |         }
[INFO] [stderr] 187 | |     }
[INFO] [stderr]     | |_____^ help: try: `while let Some((name, results)) = messages.try_recv() { .. }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.94s
[INFO] running `"docker" "inspect" "d767f03e389e48d589cd07b7f0f75a2c8de7c617658e17be448c3e058547c5c3"`
[INFO] running `"docker" "rm" "-f" "d767f03e389e48d589cd07b7f0f75a2c8de7c617658e17be448c3e058547c5c3"`
[INFO] [stdout] d767f03e389e48d589cd07b7f0f75a2c8de7c617658e17be448c3e058547c5c3