[INFO] crate json_str 0.5.2 is already in cache
[INFO] extracting crate json_str 0.5.2 into work/ex/clippy-test-run/sources/stable/reg/json_str/0.5.2
[INFO] extracting crate json_str 0.5.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/json_str/0.5.2
[INFO] validating manifest of json_str-0.5.2 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 json_str-0.5.2 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 json_str-0.5.2
[INFO] finished frobbing json_str-0.5.2
[INFO] frobbed toml for json_str-0.5.2 written to work/ex/clippy-test-run/sources/stable/reg/json_str/0.5.2/Cargo.toml
[INFO] started frobbing json_str-0.5.2
[INFO] finished frobbing json_str-0.5.2
[INFO] frobbed toml for json_str-0.5.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/json_str/0.5.2/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 json_str-0.5.2 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-3/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/reg/json_str/0.5.2:/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] 6ccae270bbc49663e20f41301911b3c81835bcad0838cb3b1b9f67fdbd606eec
[INFO] running `"docker" "start" "-a" "6ccae270bbc49663e20f41301911b3c81835bcad0838cb3b1b9f67fdbd606eec"`
[INFO] [stderr]    Compiling json_str v0.5.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0602]: unknown lint: `clippy::into_iter_on_array`
[INFO] [stderr]   |
[INFO] [stderr]   = note: requested on the command line with `-D clippy::into_iter_on_array`
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/parse.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |             remainder
[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/parse.rs:142:29
[INFO] [stderr]     |
[INFO] [stderr] 142 |             let remainder = shift_while(&remainder[1..], |c| c == b' ');
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0602`.
[INFO] [stderr] error: Could not compile `json_str`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     if l.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!l.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     if r.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!r.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if remainder.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     if remainder.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 |     if remainder.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/parse.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |             remainder
[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/parse.rs:142:29
[INFO] [stderr]     |
[INFO] [stderr] 142 |             let remainder = shift_while(&remainder[1..], |c| c == b' ');
[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: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     if l.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!l.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     if r.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!r.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if remainder.len() > 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     if remainder.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/parse.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 |     if remainder.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `remainder.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6ccae270bbc49663e20f41301911b3c81835bcad0838cb3b1b9f67fdbd606eec"`
[INFO] running `"docker" "rm" "-f" "6ccae270bbc49663e20f41301911b3c81835bcad0838cb3b1b9f67fdbd606eec"`
[INFO] [stdout] 6ccae270bbc49663e20f41301911b3c81835bcad0838cb3b1b9f67fdbd606eec