[INFO] updating cached repository studio-lucia/fldtools
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/studio-lucia/fldtools
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/studio-lucia/fldtools" "work/ex/clippy-test-run/sources/stable/gh/studio-lucia/fldtools"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/studio-lucia/fldtools'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/studio-lucia/fldtools" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/studio-lucia/fldtools"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/studio-lucia/fldtools'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c42f781ce5cc6a484267a82b2222dd83430c9a80
[INFO] sha for GitHub repo studio-lucia/fldtools: c42f781ce5cc6a484267a82b2222dd83430c9a80
[INFO] validating manifest of studio-lucia/fldtools 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 studio-lucia/fldtools 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 studio-lucia/fldtools
[INFO] finished frobbing studio-lucia/fldtools
[INFO] frobbed toml for studio-lucia/fldtools written to work/ex/clippy-test-run/sources/stable/gh/studio-lucia/fldtools/Cargo.toml
[INFO] started frobbing studio-lucia/fldtools
[INFO] finished frobbing studio-lucia/fldtools
[INFO] frobbed toml for studio-lucia/fldtools written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/studio-lucia/fldtools/Cargo.toml
[INFO] crate studio-lucia/fldtools 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 studio-lucia/fldtools against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/studio-lucia/fldtools:/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] 3df20f66515442e6b42a0e3dd4273dc0d5ee0452a2cd175b9017c7a1e79c0c3b
[INFO] running `"docker" "start" "-a" "3df20f66515442e6b42a0e3dd4273dc0d5ee0452a2cd175b9017c7a1e79c0c3b"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking itertools v0.6.1
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.6.0
[INFO] [stderr]     Checking clap v2.25.0
[INFO] [stderr]     Checking fldtools v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |             chunks: chunks,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `chunks`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             chunks: chunks,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `chunks`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lib.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |             chunks: chunks,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `chunks`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             chunks: chunks,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `chunks`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 | /         return Ok(Chunk {
[INFO] [stderr] 43 | |             start: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 44 | |             length: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 45 | |         });
[INFO] [stderr]    | |___________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 42 |         Ok(Chunk {
[INFO] [stderr] 43 |             start: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 44 |             length: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 45 |         })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return Ok(writer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(writer)`
[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:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     return a;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `a`
[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:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 | /         return ChunkList {
[INFO] [stderr] 85 | |             chunks: chunks,
[INFO] [stderr] 86 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 84 |         ChunkList {
[INFO] [stderr] 85 |             chunks: chunks,
[INFO] [stderr] 86 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:99:9
[INFO] [stderr]     |
[INFO] [stderr] 99  | /         return Ok(ChunkList {
[INFO] [stderr] 100 | |             chunks: chunks,
[INFO] [stderr] 101 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 99  |         Ok(ChunkList {
[INFO] [stderr] 100 |             chunks: chunks,
[INFO] [stderr] 101 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         return Ok(serialized);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(serialized)`
[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:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |         return self.chunks.into_iter();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.chunks.into_iter()`
[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:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 | /         return Ok(Chunk {
[INFO] [stderr] 43 | |             start: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 44 | |             length: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 45 | |         });
[INFO] [stderr]    | |___________^
[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] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 42 |         Ok(Chunk {
[INFO] [stderr] 43 |             start: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 44 |             length: data.read_u32::<BigEndian>()?,
[INFO] [stderr] 45 |         })
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return Ok(writer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(writer)`
[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:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     return a;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `a`
[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:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 | /         return ChunkList {
[INFO] [stderr] 85 | |             chunks: chunks,
[INFO] [stderr] 86 | |         };
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 84 |         ChunkList {
[INFO] [stderr] 85 |             chunks: chunks,
[INFO] [stderr] 86 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:99:9
[INFO] [stderr]     |
[INFO] [stderr] 99  | /         return Ok(ChunkList {
[INFO] [stderr] 100 | |             chunks: chunks,
[INFO] [stderr] 101 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 99  |         Ok(ChunkList {
[INFO] [stderr] 100 |             chunks: chunks,
[INFO] [stderr] 101 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         return Ok(serialized);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(serialized)`
[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:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |         return self.chunks.into_iter();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.chunks.into_iter()`
[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/bin/fldunpack.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     return Ok(chunk_data.length);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(chunk_data.length)`
[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/bin/fldunpack.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     return Ok(chunk_data.length);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(chunk_data.length)`
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/fldunpack.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn write_chunk(mut reader : &mut BufReader<&mut File>, mut target : &File, chunk_data : &Chunk) -> ::std::io::Result<u32> {
[INFO] [stderr]    |                ----^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/fldunpack.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     reader.seek(SeekFrom::Start(chunk_data.start as u64))?;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(chunk_data.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/bin/fldunpack.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         let buf_size;
[INFO] [stderr] 30 | |         if bytes_to_read >= 2048 {
[INFO] [stderr] 31 | |             buf_size = SECTOR_LENGTH;
[INFO] [stderr] 32 | |         } else {
[INFO] [stderr] 33 | |             buf_size = bytes_to_read as usize;
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^ help: it is more idiomatic to write: `let buf_size = if bytes_to_read >= 2048 { SECTOR_LENGTH } else { bytes_to_read as usize };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldunpack.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         target.write(&buf)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `write_chunk` doesn't need a mutable reference
[INFO] [stderr]    --> src/bin/fldunpack.rs:105:44
[INFO] [stderr]     |
[INFO] [stderr] 105 |         match write_chunk(&mut buf_reader, &mut output_file, &chunk) {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fldtools`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/fldunpack.rs:24:16
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn write_chunk(mut reader : &mut BufReader<&mut File>, mut target : &File, chunk_data : &Chunk) -> ::std::io::Result<u32> {
[INFO] [stderr]    |                ----^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/bin/fldunpack.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     reader.seek(SeekFrom::Start(chunk_data.start as u64))?;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(chunk_data.start)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/bin/fldunpack.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         let buf_size;
[INFO] [stderr] 30 | |         if bytes_to_read >= 2048 {
[INFO] [stderr] 31 | |             buf_size = SECTOR_LENGTH;
[INFO] [stderr] 32 | |         } else {
[INFO] [stderr] 33 | |             buf_size = bytes_to_read as usize;
[INFO] [stderr] 34 | |         }
[INFO] [stderr]    | |_________^ help: it is more idiomatic to write: `let buf_size = if bytes_to_read >= 2048 { SECTOR_LENGTH } else { bytes_to_read as usize };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldunpack.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         target.write(&buf)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `write_chunk` doesn't need a mutable reference
[INFO] [stderr]    --> src/bin/fldunpack.rs:105:44
[INFO] [stderr]     |
[INFO] [stderr] 105 |         match write_chunk(&mut buf_reader, &mut output_file, &chunk) {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fldtools`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/fldpack.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     return Ok(bytes_written);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(bytes_written)`
[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/bin/fldpack.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     return Ok(bytes_written);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(bytes_written)`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/bin/fldpack.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn write_file(filename : &String, writer : &mut BufWriter<File>) -> ::std::io::Result<u64> {
[INFO] [stderr]    |                          ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldpack.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         writer.write(&buf)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/bin/fldpack.rs:59:63
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let input_files = matches.values_of("input").unwrap().map(|path| String::from(path)).collect::<Vec<String>>();
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldpack.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     writer.write(&chunk_list.serialize().unwrap()).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fldtools`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/bin/fldpack.rs:14:26
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn write_file(filename : &String, writer : &mut BufWriter<File>) -> ::std::io::Result<u64> {
[INFO] [stderr]    |                          ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldpack.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         writer.write(&buf)?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/bin/fldpack.rs:59:63
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let input_files = matches.values_of("input").unwrap().map(|path| String::from(path)).collect::<Vec<String>>();
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/bin/fldpack.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     writer.write(&chunk_list.serialize().unwrap()).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `fldtools`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3df20f66515442e6b42a0e3dd4273dc0d5ee0452a2cd175b9017c7a1e79c0c3b"`
[INFO] running `"docker" "rm" "-f" "3df20f66515442e6b42a0e3dd4273dc0d5ee0452a2cd175b9017c7a1e79c0c3b"`
[INFO] [stdout] 3df20f66515442e6b42a0e3dd4273dc0d5ee0452a2cd175b9017c7a1e79c0c3b