[INFO] crate b64 0.4.0 is already in cache
[INFO] extracting crate b64 0.4.0 into work/ex/clippy-test-run/sources/stable/reg/b64/0.4.0
[INFO] extracting crate b64 0.4.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/b64/0.4.0
[INFO] validating manifest of b64-0.4.0 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 b64-0.4.0 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 b64-0.4.0
[INFO] finished frobbing b64-0.4.0
[INFO] frobbed toml for b64-0.4.0 written to work/ex/clippy-test-run/sources/stable/reg/b64/0.4.0/Cargo.toml
[INFO] started frobbing b64-0.4.0
[INFO] finished frobbing b64-0.4.0
[INFO] frobbed toml for b64-0.4.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/b64/0.4.0/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 b64-0.4.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/b64/0.4.0:/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] 9b6a9bcee70260abcf692776a82967c3f4f765b4c60feffb847bff3c5afcdc4e
[INFO] running `"docker" "start" "-a" "9b6a9bcee70260abcf692776a82967c3f4f765b4c60feffb847bff3c5afcdc4e"`
[INFO] [stderr]     Checking b64 v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:127:66
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let mut s_in = self[..len - mod_len].iter().map(|&x| x as u32);
[INFO] [stderr]     |                                                                  ^^^^^^^^ help: try: `u32::from(x)`
[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: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]    --> src/lib.rs:152:27
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 write(enc((n >> 0 ) & 63));
[INFO] [stderr]     |                           ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:171:29
[INFO] [stderr]     |
[INFO] [stderr] 171 |                     let n = (self[len-1] as u32) << 16;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-1])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:29
[INFO] [stderr]     |
[INFO] [stderr] 176 |                     let n = (self[len-2] as u32) << 16 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-2])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:177:29
[INFO] [stderr]     |
[INFO] [stderr] 177 |                             (self[len-1] as u32) << 8;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-1])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:295:26
[INFO] [stderr]     |
[INFO] [stderr] 295 |             buf = (buf | code as u32) << 6;
[INFO] [stderr]     |                          ^^^^^^^^^^^ help: try: `u32::from(code)`
[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[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/base64.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `b64`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:127:66
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let mut s_in = self[..len - mod_len].iter().map(|&x| x as u32);
[INFO] [stderr]     |                                                                  ^^^^^^^^ help: try: `u32::from(x)`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:15:24
[INFO] [stderr]     |
[INFO] [stderr] 15  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(clippy::cast_lossless)] implied by #[deny(warnings)]
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: the operation is ineffective. Consider reducing it to `n`
[INFO] [stderr]    --> src/lib.rs:152:27
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 write(enc((n >> 0 ) & 63));
[INFO] [stderr]     |                           ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:15:24
[INFO] [stderr]     |
[INFO] [stderr] 15  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(clippy::identity_op)] implied by #[deny(warnings)]
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] error: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:171:29
[INFO] [stderr]     |
[INFO] [stderr] 171 |                     let n = (self[len-1] as u32) << 16;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-1])`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:29
[INFO] [stderr]     |
[INFO] [stderr] 176 |                     let n = (self[len-2] as u32) << 16 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-2])`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:177:29
[INFO] [stderr]     |
[INFO] [stderr] 177 |                             (self[len-1] as u32) << 8;
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self[len-1])`
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:295:26
[INFO] [stderr]     |
[INFO] [stderr] 295 |             buf = (buf | code as u32) << 6;
[INFO] [stderr]     |                          ^^^^^^^^^^^ help: try: `u32::from(code)`
[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: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:387:20
[INFO] [stderr]     |
[INFO] [stderr] 387 |         assert_eq!("".as_bytes().to_base64(STANDARD), "");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b""`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:15:24
[INFO] [stderr]     |
[INFO] [stderr] 15  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(clippy::string_lit_as_bytes)] implied by #[deny(warnings)]
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:388:20
[INFO] [stderr]     |
[INFO] [stderr] 388 |         assert_eq!("f".as_bytes().to_base64(STANDARD), "Zg==");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"f"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:389:20
[INFO] [stderr]     |
[INFO] [stderr] 389 |         assert_eq!("fo".as_bytes().to_base64(STANDARD), "Zm8=");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fo"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:390:20
[INFO] [stderr]     |
[INFO] [stderr] 390 |         assert_eq!("foo".as_bytes().to_base64(STANDARD), "Zm9v");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"foo"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:391:20
[INFO] [stderr]     |
[INFO] [stderr] 391 |         assert_eq!("foob".as_bytes().to_base64(STANDARD), "Zm9vYg==");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"foob"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:392:20
[INFO] [stderr]     |
[INFO] [stderr] 392 |         assert_eq!("fooba".as_bytes().to_base64(STANDARD), "Zm9vYmE=");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fooba"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:393:20
[INFO] [stderr]     |
[INFO] [stderr] 393 |         assert_eq!("foobar".as_bytes().to_base64(STANDARD), "Zm9vYmFy");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"foobar"`
[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] error: single-character string constant used as pattern
[INFO] [stderr]    --> src/lib.rs:410:41
[INFO] [stderr]     |
[INFO] [stderr] 410 |                               .contains("\n"));
[INFO] [stderr]     |                                         ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:15:24
[INFO] [stderr]     |
[INFO] [stderr] 15  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(clippy::single_char_pattern)] implied by #[deny(warnings)]
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:419:20
[INFO] [stderr]     |
[INFO] [stderr] 419 |         assert_eq!("f".as_bytes().to_base64(Config {pad: false, ..STANDARD}), "Zg");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"f"`
[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] error: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/lib.rs:420:20
[INFO] [stderr]     |
[INFO] [stderr] 420 |         assert_eq!("fo".as_bytes().to_base64(Config {pad: false, ..STANDARD}), "Zm8");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"fo"`
[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] error: aborting due to 16 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `b64`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9b6a9bcee70260abcf692776a82967c3f4f765b4c60feffb847bff3c5afcdc4e"`
[INFO] running `"docker" "rm" "-f" "9b6a9bcee70260abcf692776a82967c3f4f765b4c60feffb847bff3c5afcdc4e"`
[INFO] [stdout] 9b6a9bcee70260abcf692776a82967c3f4f765b4c60feffb847bff3c5afcdc4e