[INFO] updating cached repository amitkumaar/trpl
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/amitkumaar/trpl
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/amitkumaar/trpl" "work/ex/clippy-test-run/sources/stable/gh/amitkumaar/trpl"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/amitkumaar/trpl'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/amitkumaar/trpl" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amitkumaar/trpl"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amitkumaar/trpl'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6fe8dab4297f0d664d75a34472a6ef4c234a00f1
[INFO] sha for GitHub repo amitkumaar/trpl: 6fe8dab4297f0d664d75a34472a6ef4c234a00f1
[INFO] validating manifest of amitkumaar/trpl 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 amitkumaar/trpl 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 amitkumaar/trpl
[INFO] finished frobbing amitkumaar/trpl
[INFO] frobbed toml for amitkumaar/trpl written to work/ex/clippy-test-run/sources/stable/gh/amitkumaar/trpl/Cargo.toml
[INFO] started frobbing amitkumaar/trpl
[INFO] finished frobbing amitkumaar/trpl
[INFO] frobbed toml for amitkumaar/trpl written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amitkumaar/trpl/Cargo.toml
[INFO] crate amitkumaar/trpl 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 amitkumaar/trpl against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/amitkumaar/trpl:/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 -Dclippy::into_iter_on_array" "-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] ee52caf196a286c0d8099bda72d6502fa9a4849c371c6c61712f5b074037f3a3
[INFO] running `"docker" "start" "-a" "ee52caf196a286c0d8099bda72d6502fa9a4849c371c6c61712f5b074037f3a3"`
[INFO] [stderr]     Checking trpl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::Cell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::Cell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:50:6
[INFO] [stderr]    |
[INFO] [stderr] 50 | let (x,_) = tuple;
[INFO] [stderr]    |      ^ help: consider using `_x` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | / match x {
[INFO] [stderr] 61 | |     Some(Person {name: ref a@ Some(_),..}) => println!("{:?}",a),
[INFO] [stderr] 62 | |     _ => {}
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^ help: try this: `if let Some(Person {name: ref a@ Some(_),..}) = x { println!("{:?}",a) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:50:6
[INFO] [stderr]    |
[INFO] [stderr] 50 | let (x,_) = tuple;
[INFO] [stderr]    |      ^ help: consider using `_x` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | / match x {
[INFO] [stderr] 61 | |     Some(Person {name: ref a@ Some(_),..}) => println!("{:?}",a),
[INFO] [stderr] 62 | |     _ => {}
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^ help: try this: `if let Some(Person {name: ref a@ Some(_),..}) = x { println!("{:?}",a) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "ee52caf196a286c0d8099bda72d6502fa9a4849c371c6c61712f5b074037f3a3"`
[INFO] running `"docker" "rm" "-f" "ee52caf196a286c0d8099bda72d6502fa9a4849c371c6c61712f5b074037f3a3"`
[INFO] [stdout] ee52caf196a286c0d8099bda72d6502fa9a4849c371c6c61712f5b074037f3a3