[INFO] updating cached repository LothTikar/rusty_playlist_maker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LothTikar/rusty_playlist_maker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LothTikar/rusty_playlist_maker" "work/ex/clippy-test-run/sources/stable/gh/LothTikar/rusty_playlist_maker"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/LothTikar/rusty_playlist_maker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LothTikar/rusty_playlist_maker" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LothTikar/rusty_playlist_maker"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LothTikar/rusty_playlist_maker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c3147057705bfd9f33c4f9134301ec778f5d991
[INFO] sha for GitHub repo LothTikar/rusty_playlist_maker: 6c3147057705bfd9f33c4f9134301ec778f5d991
[INFO] validating manifest of LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker
[INFO] finished frobbing LothTikar/rusty_playlist_maker
[INFO] frobbed toml for LothTikar/rusty_playlist_maker written to work/ex/clippy-test-run/sources/stable/gh/LothTikar/rusty_playlist_maker/Cargo.toml
[INFO] started frobbing LothTikar/rusty_playlist_maker
[INFO] finished frobbing LothTikar/rusty_playlist_maker
[INFO] frobbed toml for LothTikar/rusty_playlist_maker written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LothTikar/rusty_playlist_maker/Cargo.toml
[INFO] crate LothTikar/rusty_playlist_maker 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 LothTikar/rusty_playlist_maker 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/LothTikar/rusty_playlist_maker:/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] ff9a0c6344e326ea64e091329cbc2439de63492c307dcd2fb53581b46a70eb5a
[INFO] running `"docker" "start" "-a" "ff9a0c6344e326ea64e091329cbc2439de63492c307dcd2fb53581b46a70eb5a"`
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking csv v1.0.1
[INFO] [stderr]     Checking rusty_playlist_maker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:57:22
[INFO] [stderr]    |
[INFO] [stderr] 57 |                     .or_insert(Vec::new())
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         file.write_all((i + "\n").as_bytes());
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             file.write_all(format!("{}\n", i).as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/main.rs:57:22
[INFO] [stderr]    |
[INFO] [stderr] 57 |                     .or_insert(Vec::new())
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         file.write_all((i + "\n").as_bytes());
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             file.write_all(format!("{}\n", i).as_bytes());
[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 4.65s
[INFO] running `"docker" "inspect" "ff9a0c6344e326ea64e091329cbc2439de63492c307dcd2fb53581b46a70eb5a"`
[INFO] running `"docker" "rm" "-f" "ff9a0c6344e326ea64e091329cbc2439de63492c307dcd2fb53581b46a70eb5a"`
[INFO] [stdout] ff9a0c6344e326ea64e091329cbc2439de63492c307dcd2fb53581b46a70eb5a