[INFO] crate redux 0.2.0 is already in cache
[INFO] extracting crate redux 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/redux/0.2.0
[INFO] extracting crate redux 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/redux/0.2.0
[INFO] validating manifest of redux-0.2.0 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 redux-0.2.0 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 redux-0.2.0
[INFO] finished frobbing redux-0.2.0
[INFO] frobbed toml for redux-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/redux/0.2.0/Cargo.toml
[INFO] started frobbing redux-0.2.0
[INFO] finished frobbing redux-0.2.0
[INFO] frobbed toml for redux-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/redux/0.2.0/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 redux-0.2.0 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/redux/0.2.0:/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 -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] 88d1645e295b5bc8afd4ef0295f269c1a13999cd2c6143fb775370a57222e745
[INFO] running `"docker" "start" "-a" "88d1645e295b5bc8afd4ef0295f269c1a13999cd2c6143fb775370a57222e745"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]     Checking redux v0.2.0 (/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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/model/adaptive_tree.rs:129:17
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let (l, h) = self.get_frequency_range(i);
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[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 `libc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/bitio/mod.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |         return Ok(result);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(result)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/bitio/mod.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         return Ok(())
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/bitio/mod.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         return Ok(())
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/codec.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         return Ok(());
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/codec.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         return Ok(());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/codec.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |         return Ok(());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/codec.rs:160:9
[INFO] [stderr]     |
[INFO] [stderr] 160 |         return Ok(symbol);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(symbol)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/codec.rs:175:9
[INFO] [stderr]     |
[INFO] [stderr] 175 |         return Ok(());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/model/adaptive_linear.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         return Box::new(m);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Box::new(m)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/model/adaptive_tree.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return Box::new(m);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Box::new(m)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/model/adaptive_tree.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         return sum;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: remove `return` as shown: `sum`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     return Ok((input.get_count(), output.get_count()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok((input.get_count(), output.get_count()))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     return Ok((input.get_count(), output.get_count()));
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok((input.get_count(), output.get_count()))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/codec.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         self.low = self.low + (range * low / count);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.low += (range * low / count)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/codec.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         self.low = self.low + (range * low / count);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.low += (range * low / count)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/codec.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |             self.low = self.low << 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.low <<= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]   --> src/model/adaptive_linear.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     pub fn new(p: Parameters) -> Box<Model> {
[INFO] [stderr] 22 | |         let mut m = AdaptiveLinearModel {
[INFO] [stderr] 23 | |             freq: vec![0; p.symbol_count + 1],
[INFO] [stderr] 24 | |             params: p,
[INFO] [stderr] ...  |
[INFO] [stderr] 29 | |         return Box::new(m);
[INFO] [stderr] 30 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_ret_no_self)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/model/adaptive_linear.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 | /     fn parameters<'a>(&'a self) -> &'a Parameters {
[INFO] [stderr] 44 | |         &self.params
[INFO] [stderr] 45 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `res`
[INFO] [stderr]   --> src/model/adaptive_linear.rs:75:18
[INFO] [stderr]    |
[INFO] [stderr] 75 |         for i in 0..self.params.symbol_count {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 75 |         for (i, <item>) in res.iter_mut().enumerate().take(self.params.symbol_count) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `new` usually return `Self`
[INFO] [stderr]   --> src/model/adaptive_tree.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     pub fn new(p: Parameters) -> Box<Model> {
[INFO] [stderr] 37 | |         let mut m = AdaptiveTreeModel {
[INFO] [stderr] 38 | |             tree: vec![0; p.symbol_count + 1],
[INFO] [stderr] 39 | |             count: p.symbol_count as u64,
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |         return Box::new(m);
[INFO] [stderr] 48 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_ret_no_self
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/model/adaptive_tree.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 | /     fn parameters<'a>(&'a self) -> &'a Parameters {
[INFO] [stderr] 97 | |         &self.params
[INFO] [stderr] 98 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `res`
[INFO] [stderr]    --> src/model/adaptive_tree.rs:141:18
[INFO] [stderr]     |
[INFO] [stderr] 141 |         for i in 0..self.params.symbol_count {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 141 |         for (i, <item>) in res.iter_mut().enumerate().take(self.params.symbol_count) {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/model/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn parameters<'a>(&'a self) -> &'a Parameters;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "88d1645e295b5bc8afd4ef0295f269c1a13999cd2c6143fb775370a57222e745"`
[INFO] running `"docker" "rm" "-f" "88d1645e295b5bc8afd4ef0295f269c1a13999cd2c6143fb775370a57222e745"`
[INFO] [stdout] 88d1645e295b5bc8afd4ef0295f269c1a13999cd2c6143fb775370a57222e745