[INFO] crate fomat-macros 0.2.1 is already in cache
[INFO] extracting crate fomat-macros 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/fomat-macros/0.2.1
[INFO] extracting crate fomat-macros 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fomat-macros/0.2.1
[INFO] validating manifest of fomat-macros-0.2.1 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 fomat-macros-0.2.1 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 fomat-macros-0.2.1
[INFO] finished frobbing fomat-macros-0.2.1
[INFO] frobbed toml for fomat-macros-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/fomat-macros/0.2.1/Cargo.toml
[INFO] started frobbing fomat-macros-0.2.1
[INFO] finished frobbing fomat-macros-0.2.1
[INFO] frobbed toml for fomat-macros-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/fomat-macros/0.2.1/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 fomat-macros-0.2.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/fomat-macros/0.2.1:/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] 233f6a1a5be9f531c6b9fdcdc8c0aa0b04a89e6ff2feb7eb02584d37ca81ceca
[INFO] running `"docker" "start" "-a" "233f6a1a5be9f531c6b9fdcdc8c0aa0b04a89e6ff2feb7eb02584d37ca81ceca"`
[INFO] [stderr]     Checking fomat-macros v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/lib.rs:814:27
[INFO] [stderr]     |
[INFO] [stderr] 814 |         if {let t = true; t} { "K" }
[INFO] [stderr]     |                           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/lib.rs:814:21
[INFO] [stderr]     |
[INFO] [stderr] 814 |         if {let t = true; t} { "K" }
[INFO] [stderr]     |                     ^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/lib.rs:811:16
[INFO] [stderr]     |
[INFO] [stderr] 422 | /             if let $p = $e {
[INFO] [stderr] 423 | |                 wite!(@rec $w, $($then)*);
[INFO] [stderr] 424 | |             } else {
[INFO] [stderr] 425 | |                 wite!(@rec $w, $($els)*);
[INFO] [stderr] 426 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if Some(5).is_none()`
[INFO] [stderr] ...
[INFO] [stderr] 811 |           if let None = Some(5) { "X" } else { "F" "F" }
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_none()`
[INFO] [stderr]    --> src/lib.rs:813:16
[INFO] [stderr]     |
[INFO] [stderr] 422 | /             if let $p = $e {
[INFO] [stderr] 423 | |                 wite!(@rec $w, $($then)*);
[INFO] [stderr] 424 | |             } else {
[INFO] [stderr] 425 | |                 wite!(@rec $w, $($els)*);
[INFO] [stderr] 426 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if Some(5).is_none()`
[INFO] [stderr] ...
[INFO] [stderr] 813 |           if let None = Some(5) { "X" }
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:401:13
[INFO] [stderr]     |
[INFO] [stderr] 401 | /             match $e {
[INFO] [stderr] 402 | |                 $(
[INFO] [stderr] 403 | |                     $($p)|+ $(if $g)* => {
[INFO] [stderr] 404 | |                         wite!(@rec $w, $($body)*)
[INFO] [stderr] 405 | |                     }
[INFO] [stderr] 406 | |                 )*
[INFO] [stderr] 407 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr] ...
[INFO] [stderr] 852 |       let s = fomat!(
[INFO] [stderr]     |  _____________-
[INFO] [stderr] 853 | |         "Hello"
[INFO] [stderr] 854 | |         for x in [1][1..].iter() { (x) "a" }
[INFO] [stderr] 855 | |         if let Some(()) = None { "b" }
[INFO] [stderr] ...   |
[INFO] [stderr] 858 | |         "!"
[INFO] [stderr] 859 | |     );
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 401 |             if let 2 = 1 { fomat!(
[INFO] [stderr] 402 |         "Hello"
[INFO] [stderr] 403 |         for x in [1][1..].iter() { (x) "a" }
[INFO] [stderr] 404 |         if let Some(()) = None { "b" }
[INFO] [stderr] 405 |         if false { "c" } else {}
[INFO] [stderr] 406 |         match 1 { 2 => { "e" } _ => {} }
[INFO] [stderr]   ...
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench.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] 
[INFO] [stderr] error: Could not compile `fomat-macros`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> tests/capturing.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | const FILES: &'static [(&'static str, &'static str)] = &[
[INFO] [stderr]   |              -^^^^^^^------------------------------- help: consider removing `'static`: `&[(&'static str, &'static str)]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> tests/capturing.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | const FILES: &'static [(&'static str, &'static str)] = &[
[INFO] [stderr]   |                         -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> tests/capturing.rs:6:40
[INFO] [stderr]   |
[INFO] [stderr] 6 | const FILES: &'static [(&'static str, &'static str)] = &[
[INFO] [stderr]   |                                       -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "233f6a1a5be9f531c6b9fdcdc8c0aa0b04a89e6ff2feb7eb02584d37ca81ceca"`
[INFO] running `"docker" "rm" "-f" "233f6a1a5be9f531c6b9fdcdc8c0aa0b04a89e6ff2feb7eb02584d37ca81ceca"`
[INFO] [stdout] 233f6a1a5be9f531c6b9fdcdc8c0aa0b04a89e6ff2feb7eb02584d37ca81ceca