[INFO] crate testclourse 0.1.0 is already in cache
[INFO] extracting crate testclourse 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/testclourse/0.1.0
[INFO] extracting crate testclourse 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/testclourse/0.1.0
[INFO] validating manifest of testclourse-0.1.0 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 testclourse-0.1.0 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 testclourse-0.1.0
[INFO] finished frobbing testclourse-0.1.0
[INFO] frobbed toml for testclourse-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/testclourse/0.1.0/Cargo.toml
[INFO] started frobbing testclourse-0.1.0
[INFO] finished frobbing testclourse-0.1.0
[INFO] frobbed toml for testclourse-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/testclourse/0.1.0/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 testclourse-0.1.0 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/reg/testclourse/0.1.0:/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] fbd4433a1df48f27a15d8c161190e63fce274dfde67129ba9915ae4ec5ccfbcc
[INFO] running `"docker" "start" "-a" "fbd4433a1df48f27a15d8c161190e63fce274dfde67129ba9915ae4ec5ccfbcc"`
[INFO] [stderr]     Checking testclourse 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:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 v
[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:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let v = (self.caculation)(arg);
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/lib.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |       } else {
[INFO] [stderr]    |  ____________^
[INFO] [stderr] 66 | |         if random_number == 3 {
[INFO] [stderr] 67 | |             println!("Take a break today! Remember to stay hydrated!");
[INFO] [stderr] 68 | |         } else {
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |         }
[INFO] [stderr] 74 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 65 |     } else if random_number == 3 {
[INFO] [stderr] 66 |     println!("Take a break today! Remember to stay hydrated!");
[INFO] [stderr] 67 | } else {
[INFO] [stderr] 68 |     println!(
[INFO] [stderr] 69 |         "Today, run for {} minutes!",
[INFO] [stderr] 70 |         expensive_result.value(intensity)
[INFO] [stderr]  ...
[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:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 v
[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:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let v = (self.caculation)(arg);
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/lib.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |       } else {
[INFO] [stderr]    |  ____________^
[INFO] [stderr] 66 | |         if random_number == 3 {
[INFO] [stderr] 67 | |             println!("Take a break today! Remember to stay hydrated!");
[INFO] [stderr] 68 | |         } else {
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |         }
[INFO] [stderr] 74 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 65 |     } else if random_number == 3 {
[INFO] [stderr] 66 |     println!("Take a break today! Remember to stay hydrated!");
[INFO] [stderr] 67 | } else {
[INFO] [stderr] 68 |     println!(
[INFO] [stderr] 69 |         "Today, run for {} minutes!",
[INFO] [stderr] 70 |         expensive_result.value(intensity)
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "fbd4433a1df48f27a15d8c161190e63fce274dfde67129ba9915ae4ec5ccfbcc"`
[INFO] running `"docker" "rm" "-f" "fbd4433a1df48f27a15d8c161190e63fce274dfde67129ba9915ae4ec5ccfbcc"`
[INFO] [stdout] fbd4433a1df48f27a15d8c161190e63fce274dfde67129ba9915ae4ec5ccfbcc