[INFO] updating cached repository jkang8/risp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jkang8/risp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jkang8/risp" "work/ex/clippy-test-run/sources/stable/gh/jkang8/risp"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jkang8/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jkang8/risp" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkang8/risp"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkang8/risp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e073f95ed46aa70339078608fa00501f8c7b9cb2
[INFO] sha for GitHub repo jkang8/risp: e073f95ed46aa70339078608fa00501f8c7b9cb2
[INFO] validating manifest of jkang8/risp 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 jkang8/risp 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 jkang8/risp
[INFO] finished frobbing jkang8/risp
[INFO] frobbed toml for jkang8/risp written to work/ex/clippy-test-run/sources/stable/gh/jkang8/risp/Cargo.toml
[INFO] started frobbing jkang8/risp
[INFO] finished frobbing jkang8/risp
[INFO] frobbed toml for jkang8/risp written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jkang8/risp/Cargo.toml
[INFO] crate jkang8/risp 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 jkang8/risp 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/jkang8/risp:/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] 4c53ec300aec66ee01f154b9fa6c06858f9890cc7d104fd2494a4128aae6717b
[INFO] running `"docker" "start" "-a" "4c53ec300aec66ee01f154b9fa6c06858f9890cc7d104fd2494a4128aae6717b"`
[INFO] [stderr]     Checking risp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     res
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/lib.rs:8:15
[INFO] [stderr]    |
[INFO] [stderr] 8  |       let res = _chars
[INFO] [stderr]    |  _______________^
[INFO] [stderr] 9  | |         .replace("(", " ( ")
[INFO] [stderr] 10 | |         .replace(")", " ) ")
[INFO] [stderr] 11 | |         .split_whitespace()
[INFO] [stderr] 12 | |         .map(|s| s.to_string())
[INFO] [stderr] 13 | |         .collect();
[INFO] [stderr]    | |__________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     tokens
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/lib.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let tokens = tokenize(program);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     res
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/lib.rs:8:15
[INFO] [stderr]    |
[INFO] [stderr] 8  |       let res = _chars
[INFO] [stderr]    |  _______________^
[INFO] [stderr] 9  | |         .replace("(", " ( ")
[INFO] [stderr] 10 | |         .replace(")", " ) ")
[INFO] [stderr] 11 | |         .split_whitespace()
[INFO] [stderr] 12 | |         .map(|s| s.to_string())
[INFO] [stderr] 13 | |         .collect();
[INFO] [stderr]    | |__________________^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     tokens
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/lib.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let tokens = tokenize(program);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "4c53ec300aec66ee01f154b9fa6c06858f9890cc7d104fd2494a4128aae6717b"`
[INFO] running `"docker" "rm" "-f" "4c53ec300aec66ee01f154b9fa6c06858f9890cc7d104fd2494a4128aae6717b"`
[INFO] [stdout] 4c53ec300aec66ee01f154b9fa6c06858f9890cc7d104fd2494a4128aae6717b