[INFO] crate emailmessage 0.2.2 is already in cache
[INFO] extracting crate emailmessage 0.2.2 into work/ex/clippy-test-run/sources/stable/reg/emailmessage/0.2.2
[INFO] extracting crate emailmessage 0.2.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/emailmessage/0.2.2
[INFO] validating manifest of emailmessage-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 emailmessage-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 emailmessage-0.2.2
[INFO] finished frobbing emailmessage-0.2.2
[INFO] frobbed toml for emailmessage-0.2.2 written to work/ex/clippy-test-run/sources/stable/reg/emailmessage/0.2.2/Cargo.toml
[INFO] started frobbing emailmessage-0.2.2
[INFO] finished frobbing emailmessage-0.2.2
[INFO] frobbed toml for emailmessage-0.2.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/emailmessage/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 emailmessage-0.2.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/emailmessage/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" "-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] ce848bab8c1245ea7a3f68508a0237f17b42f669358554f27e230e47f0bcc26b
[INFO] running `"docker" "start" "-a" "ce848bab8c1245ea7a3f68508a0237f17b42f669358554f27e230e47f0bcc26b"`
[INFO] [stderr]     Checking quoted_printable v0.4.0
[INFO] [stderr]     Checking textnonce v0.6.4
[INFO] [stderr]     Checking emailmessage v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/encoder.rs:298:42
[INFO] [stderr]     |
[INFO] [stderr] 298 |                     Ok(Async::Ready(Some(chunk.into())))
[INFO] [stderr]     |                                          ^^^^^^^^^^^^ help: consider removing `.into()`: `chunk`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/mimebody.rs:383:31
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn to_mime<S: AsRef<str>>(&self, boundary: Option<S>) -> Mime {
[INFO] [stderr]     |                               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]    --> src/encoder.rs:298:42
[INFO] [stderr]     |
[INFO] [stderr] 298 |                     Ok(Async::Ready(Some(chunk.into())))
[INFO] [stderr]     |                                          ^^^^^^^^^^^^ help: consider removing `.into()`: `chunk`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:324:44
[INFO] [stderr]     |
[INFO] [stderr] 324 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[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] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:330:44
[INFO] [stderr]     |
[INFO] [stderr] 330 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:341:44
[INFO] [stderr]     |
[INFO] [stderr] 341 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:348:47
[INFO] [stderr]     |
[INFO] [stderr] 348 |                    .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:358:44
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:365:41
[INFO] [stderr]     |
[INFO] [stderr] 365 |             ).map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:381:41
[INFO] [stderr]     |
[INFO] [stderr] 381 |             ).map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:396:41
[INFO] [stderr]     |
[INFO] [stderr] 396 |             ).map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:413:44
[INFO] [stderr]     |
[INFO] [stderr] 413 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:419:44
[INFO] [stderr]     |
[INFO] [stderr] 419 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:427:44
[INFO] [stderr]     |
[INFO] [stderr] 427 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:433:44
[INFO] [stderr]     |
[INFO] [stderr] 433 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:441:44
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:447:44
[INFO] [stderr]     |
[INFO] [stderr] 447 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:455:44
[INFO] [stderr]     |
[INFO] [stderr] 455 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:461:44
[INFO] [stderr]     |
[INFO] [stderr] 461 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:472:44
[INFO] [stderr]     |
[INFO] [stderr] 472 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:478:44
[INFO] [stderr]     |
[INFO] [stderr] 478 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:489:44
[INFO] [stderr]     |
[INFO] [stderr] 489 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/encoder.rs:495:44
[INFO] [stderr]     |
[INFO] [stderr] 495 |                 .map(|s| from_utf8(&s).map(|s| String::from(s))),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `String::from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/mimebody.rs:383:31
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn to_mime<S: AsRef<str>>(&self, boundary: Option<S>) -> Mime {
[INFO] [stderr]     |                               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/mimebody.rs:831:29
[INFO] [stderr]     |
[INFO] [stderr] 831 |                             "example.c".as_bytes().into(),
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"example.c"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/mimebody.rs:904:130
[INFO] [stderr]     |
[INFO] [stderr] 904 |                                  parameters: vec![header::DispositionParam::Filename(header::Charset::Ext("utf-8".into()), None, "example.c".as_bytes().into())]
[INFO] [stderr]     |                                                                                                                                  ^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"example.c"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> examples/format_multipart.rs:46:48
[INFO] [stderr]    |
[INFO] [stderr] 46 |                                          None, "example.c".as_bytes().into()
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"example.c"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> examples/format_stream_multipart.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |                         "example.c".as_bytes().into(),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"example.c"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.55s
[INFO] running `"docker" "inspect" "ce848bab8c1245ea7a3f68508a0237f17b42f669358554f27e230e47f0bcc26b"`
[INFO] running `"docker" "rm" "-f" "ce848bab8c1245ea7a3f68508a0237f17b42f669358554f27e230e47f0bcc26b"`
[INFO] [stdout] ce848bab8c1245ea7a3f68508a0237f17b42f669358554f27e230e47f0bcc26b