[INFO] crate libmmap 0.1.0 is already in cache
[INFO] extracting crate libmmap 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/libmmap/0.1.0
[INFO] extracting crate libmmap 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/libmmap/0.1.0
[INFO] validating manifest of libmmap-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 libmmap-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 libmmap-0.1.0
[INFO] finished frobbing libmmap-0.1.0
[INFO] frobbed toml for libmmap-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/libmmap/0.1.0/Cargo.toml
[INFO] started frobbing libmmap-0.1.0
[INFO] finished frobbing libmmap-0.1.0
[INFO] frobbed toml for libmmap-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/libmmap/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 libmmap-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-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/libmmap/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] 2d6e323caec277a9b85cd9086ab29f703c69bbb128ccd90d6a5096e6b1161d81
[INFO] running `"docker" "start" "-a" "2d6e323caec277a9b85cd9086ab29f703c69bbb128ccd90d6a5096e6b1161d81"`
[INFO] [stderr]     Checking libmmap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 len: len,
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `len`
[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:253:17
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 kind: kind,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace it with: `kind`
[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:389:29
[INFO] [stderr]     |
[INFO] [stderr] 389 |                             len: len,
[INFO] [stderr]     |                             ^^^^^^^^ help: replace it with: `len`
[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:412:25
[INFO] [stderr]     |
[INFO] [stderr] 412 |                         len: len,
[INFO] [stderr]     |                         ^^^^^^^^ help: replace it with: `len`
[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:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 len: len,
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `len`
[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:253:17
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 kind: kind,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace it with: `kind`
[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:389:29
[INFO] [stderr]     |
[INFO] [stderr] 389 |                             len: len,
[INFO] [stderr]     |                             ^^^^^^^^ help: replace it with: `len`
[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:412:25
[INFO] [stderr]     |
[INFO] [stderr] 412 |                         len: len,
[INFO] [stderr]     |                         ^^^^^^^^ help: replace it with: `len`
[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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/lib.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 | /             let mut kind = MemoryMapKind::File(ptr::null());
[INFO] [stderr] 246 | |             if fd == -1 {
[INFO] [stderr] 247 | |                 kind = MemoryMapKind::Virtual;
[INFO] [stderr] 248 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> kind = if fd == -1 { MemoryMapKind::Virtual } else { MemoryMapKind::File(ptr::null()) };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[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] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:291:25
[INFO] [stderr]     |
[INFO] [stderr] 291 |             libc::msync(self.data.offset(aligned_offset as isize) as *mut c_void,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.data.add(aligned_offset)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/lib.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 | /             let mut kind = MemoryMapKind::File(ptr::null());
[INFO] [stderr] 246 | |             if fd == -1 {
[INFO] [stderr] 247 | |                 kind = MemoryMapKind::Virtual;
[INFO] [stderr] 248 | |             }
[INFO] [stderr]     | |_____________^ help: it is more idiomatic to write: `let <mut> kind = if fd == -1 { MemoryMapKind::Virtual } else { MemoryMapKind::File(ptr::null()) };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = note: you might not need `mut` at all
[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] warning: use of `offset` with a `usize` casted to an `isize`
[INFO] [stderr]    --> src/lib.rs:291:25
[INFO] [stderr]     |
[INFO] [stderr] 291 |             libc::msync(self.data.offset(aligned_offset as isize) as *mut c_void,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `self.data.add(aligned_offset)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_offset_with_cast)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> tests/lib.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     file.write(b"\0").unwrap();
[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: length comparison to zero
[INFO] [stderr]   --> tests/lib.rs:62:13
[INFO] [stderr]    |
[INFO] [stderr] 62 |     assert!(chunk.len() > 0);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!chunk.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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `libmmap`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2d6e323caec277a9b85cd9086ab29f703c69bbb128ccd90d6a5096e6b1161d81"`
[INFO] running `"docker" "rm" "-f" "2d6e323caec277a9b85cd9086ab29f703c69bbb128ccd90d6a5096e6b1161d81"`
[INFO] [stdout] 2d6e323caec277a9b85cd9086ab29f703c69bbb128ccd90d6a5096e6b1161d81