[INFO] crate ieee754 0.2.2 is already in cache
[INFO] extracting crate ieee754 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/ieee754/0.2.2
[INFO] extracting crate ieee754 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ieee754/0.2.2
[INFO] validating manifest of ieee754-0.2.2 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 ieee754-0.2.2 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 ieee754-0.2.2
[INFO] finished frobbing ieee754-0.2.2
[INFO] frobbed toml for ieee754-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/ieee754/0.2.2/Cargo.toml
[INFO] started frobbing ieee754-0.2.2
[INFO] finished frobbing ieee754-0.2.2
[INFO] frobbed toml for ieee754-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ieee754/0.2.2/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 ieee754-0.2.2 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-4/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/ieee754/0.2.2:/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] 7732b7c5856e7be7264ab3e439219b676b9e81c138a3cff54126e1f9036d17f9
[INFO] running `"docker" "start" "-a" "7732b7c5856e7be7264ab3e439219b676b9e81c138a3cff54126e1f9036d17f9"`
[INFO] [stderr]     Checking ieee754 v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return Some(x)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(x)`
[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/lib.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return Some(x)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(x)`
[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: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:94:30
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn as_u64(self) -> u64 { self as u64 }
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: try: `u64::from(self)`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]    --> src/lib.rs:445:25
[INFO] [stderr]     |
[INFO] [stderr] 445 |                 unsafe {mem::transmute(bits)}
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(bits)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:460:29
[INFO] [stderr]     |
[INFO] [stderr] 460 |                     unmask!(expn as Self::Bits => $signif_n) |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try: `u32::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:467:24
[INFO] [stderr]     |
[INFO] [stderr] 467 |                 (sign, expn as Self::Exponent - Self::exponent_bias(),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^ help: try: `i16::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]    --> src/lib.rs:445:25
[INFO] [stderr]     |
[INFO] [stderr] 445 |                 unsafe {mem::transmute(bits)}
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(bits)`
[INFO] [stderr] ...
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:460:29
[INFO] [stderr]     |
[INFO] [stderr] 460 |                     unmask!(expn as Self::Bits => $signif_n) |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try: `u64::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         return Some(x)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(x)`
[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/lib.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return Some(x)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(x)`
[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: unused import: `ieee754::Ieee754`
[INFO] [stderr]  --> examples/all.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ieee754::Ieee754;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f32 as f`
[INFO] [stderr]  --> examples/all.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::f32 as f;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ieee754::Ieee754`
[INFO] [stderr]  --> examples/all_rev.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use ieee754::Ieee754;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f32 as f`
[INFO] [stderr]  --> examples/all_rev.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::f32 as f;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/lib.rs:94:30
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn as_u64(self) -> u64 { self as u64 }
[INFO] [stderr]    |                              ^^^^^^^^^^^ help: try: `u64::from(self)`
[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: transmute from a `u32` to a `f32`
[INFO] [stderr]    --> src/lib.rs:445:25
[INFO] [stderr]     |
[INFO] [stderr] 445 |                 unsafe {mem::transmute(bits)}
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(bits)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:460:29
[INFO] [stderr]     |
[INFO] [stderr] 460 |                     unmask!(expn as Self::Bits => $signif_n) |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try: `u32::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:467:24
[INFO] [stderr]     |
[INFO] [stderr] 467 |                 (sign, expn as Self::Exponent - Self::exponent_bias(),
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^ help: try: `i16::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:609:1
[INFO] [stderr]     |
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:609:1
[INFO] [stderr]     |
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:609:1
[INFO] [stderr]     |
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:609:1
[INFO] [stderr]     |
[INFO] [stderr] 609 | mk_impl!(f32, u32, i16, u8, u32, 8, 23);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]    --> src/lib.rs:445:25
[INFO] [stderr]     |
[INFO] [stderr] 445 |                 unsafe {mem::transmute(bits)}
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(bits)`
[INFO] [stderr] ...
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:460:29
[INFO] [stderr]     |
[INFO] [stderr] 460 |                     unmask!(expn as Self::Bits => $signif_n) |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try: `u64::from(expn)`
[INFO] [stderr] ...
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:610:1
[INFO] [stderr]     |
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:610:1
[INFO] [stderr]     |
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/lib.rs:610:1
[INFO] [stderr]     |
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/lib.rs:610:1
[INFO] [stderr]     |
[INFO] [stderr] 610 | mk_impl!(f64, u64, i16, u16, u64, 11, 52);
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in this macro invocation
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ieee754`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7732b7c5856e7be7264ab3e439219b676b9e81c138a3cff54126e1f9036d17f9"`
[INFO] running `"docker" "rm" "-f" "7732b7c5856e7be7264ab3e439219b676b9e81c138a3cff54126e1f9036d17f9"`
[INFO] [stdout] 7732b7c5856e7be7264ab3e439219b676b9e81c138a3cff54126e1f9036d17f9