[INFO] updating cached repository andrewhu-uw/RustSystemsTest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrewhu-uw/RustSystemsTest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewhu-uw/RustSystemsTest" "work/ex/clippy-test-run/sources/stable/gh/andrewhu-uw/RustSystemsTest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/andrewhu-uw/RustSystemsTest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewhu-uw/RustSystemsTest" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andrewhu-uw/RustSystemsTest"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andrewhu-uw/RustSystemsTest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2081b576d5d18ffb583c8e3b925a94979981809f
[INFO] sha for GitHub repo andrewhu-uw/RustSystemsTest: 2081b576d5d18ffb583c8e3b925a94979981809f
[INFO] validating manifest of andrewhu-uw/RustSystemsTest 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 andrewhu-uw/RustSystemsTest 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 andrewhu-uw/RustSystemsTest
[INFO] finished frobbing andrewhu-uw/RustSystemsTest
[INFO] frobbed toml for andrewhu-uw/RustSystemsTest written to work/ex/clippy-test-run/sources/stable/gh/andrewhu-uw/RustSystemsTest/Cargo.toml
[INFO] started frobbing andrewhu-uw/RustSystemsTest
[INFO] finished frobbing andrewhu-uw/RustSystemsTest
[INFO] frobbed toml for andrewhu-uw/RustSystemsTest written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andrewhu-uw/RustSystemsTest/Cargo.toml
[INFO] crate andrewhu-uw/RustSystemsTest 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 andrewhu-uw/RustSystemsTest against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/andrewhu-uw/RustSystemsTest:/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] b23a2907963634b818bfef09f8d37e8ef5045a8bb105307db6938589fc3f1597
[INFO] running `"docker" "start" "-a" "b23a2907963634b818bfef09f8d37e8ef5045a8bb105307db6938589fc3f1597"`
[INFO] [stderr]     Checking rs333 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:45:69
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn do_work(wordmap : &mut HashMap<String, WordPositions>, filename: &String) {
[INFO] [stderr]    |                                                                     ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[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:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 | /   match file.read_to_string(&mut contents) {
[INFO] [stderr] 109 | |     Err(why) => panic!("Couldn't open {}: {}", path.display(),
[INFO] [stderr] 110 | |                   why.description()),
[INFO] [stderr] 111 | |     Ok(_) => {},
[INFO] [stderr] 112 | |   }
[INFO] [stderr]     | |___^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 108 |   if let Err(why) = file.read_to_string(&mut contents) { panic!("Couldn't open {}: {}", path.display(),
[INFO] [stderr] 109 |                   why.description()) }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:45:69
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn do_work(wordmap : &mut HashMap<String, WordPositions>, filename: &String) {
[INFO] [stderr]    |                                                                     ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[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:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 | /   match file.read_to_string(&mut contents) {
[INFO] [stderr] 109 | |     Err(why) => panic!("Couldn't open {}: {}", path.display(),
[INFO] [stderr] 110 | |                   why.description()),
[INFO] [stderr] 111 | |     Ok(_) => {},
[INFO] [stderr] 112 | |   }
[INFO] [stderr]     | |___^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 108 |   if let Err(why) = file.read_to_string(&mut contents) { panic!("Couldn't open {}: {}", path.display(),
[INFO] [stderr] 109 |                   why.description()) }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "b23a2907963634b818bfef09f8d37e8ef5045a8bb105307db6938589fc3f1597"`
[INFO] running `"docker" "rm" "-f" "b23a2907963634b818bfef09f8d37e8ef5045a8bb105307db6938589fc3f1597"`
[INFO] [stdout] b23a2907963634b818bfef09f8d37e8ef5045a8bb105307db6938589fc3f1597