[INFO] crate zapper_derive 0.9.0 is already in cache
[INFO] extracting crate zapper_derive 0.9.0 into work/ex/clippy-test-run/sources/stable/reg/zapper_derive/0.9.0
[INFO] extracting crate zapper_derive 0.9.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/zapper_derive/0.9.0
[INFO] validating manifest of zapper_derive-0.9.0 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 zapper_derive-0.9.0 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 zapper_derive-0.9.0
[INFO] finished frobbing zapper_derive-0.9.0
[INFO] frobbed toml for zapper_derive-0.9.0 written to work/ex/clippy-test-run/sources/stable/reg/zapper_derive/0.9.0/Cargo.toml
[INFO] started frobbing zapper_derive-0.9.0
[INFO] finished frobbing zapper_derive-0.9.0
[INFO] frobbed toml for zapper_derive-0.9.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/zapper_derive/0.9.0/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 zapper_derive-0.9.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/zapper_derive/0.9.0:/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] 7f0af8d9d8b949d5b52009d2699e19d56bae41130c0c388e575a22f4232cde73
[INFO] running `"docker" "start" "-a" "7f0af8d9d8b949d5b52009d2699e19d56bae41130c0c388e575a22f4232cde73"`
[INFO] [stderr]     Checking proc-macro2 v0.3.8
[INFO] [stderr]     Checking quote v0.5.2
[INFO] [stderr]     Checking syn v0.13.11
[INFO] [stderr]     Checking zapper_derive v0.9.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/lib.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 .expect(&format!("Error: Expected #[{} = value]", attr_name))
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error: Expected #[{} = value]", attr_name))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> src/lib.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |               let val = attr.tts
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 27 | |                 .clone()
[INFO] [stderr] 28 | |                 .into_iter()
[INFO] [stderr] 29 | |                 .skip(1)
[INFO] [stderr] 30 | |                 .next()
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/lib.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |                             if attr.path.segments[0].ident.to_string() == "zapper_ignore" {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*attr.path.segments[0].ident`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:97:25
[INFO] [stderr]     |
[INFO] [stderr] 97  |       let runner = runner.expect(&format!(
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 98  | |         "You must provide a #[runner = ZapperRunnerStruct] annotation on the \"{}\" struct.",
[INFO] [stderr] 99  | |         name
[INFO] [stderr] 100 | |     ));
[INFO] [stderr]     | |______^ help: try this: `unwrap_or_else(|| panic!("You must provide a #[runner = ZapperRunnerStruct] annotation on the \"{}\" struct.", name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]   --> src/lib.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 .expect(&format!("Error: Expected #[{} = value]", attr_name))
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| panic!("Error: Expected #[{} = value]", attr_name))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::expect_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> src/lib.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |               let val = attr.tts
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 27 | |                 .clone()
[INFO] [stderr] 28 | |                 .into_iter()
[INFO] [stderr] 29 | |                 .skip(1)
[INFO] [stderr] 30 | |                 .next()
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/lib.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |                             if attr.path.segments[0].ident.to_string() == "zapper_ignore" {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `*attr.path.segments[0].ident`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: use of `expect` followed by a function call
[INFO] [stderr]    --> src/lib.rs:97:25
[INFO] [stderr]     |
[INFO] [stderr] 97  |       let runner = runner.expect(&format!(
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 98  | |         "You must provide a #[runner = ZapperRunnerStruct] annotation on the \"{}\" struct.",
[INFO] [stderr] 99  | |         name
[INFO] [stderr] 100 | |     ));
[INFO] [stderr]     | |______^ help: try this: `unwrap_or_else(|| panic!("You must provide a #[runner = ZapperRunnerStruct] annotation on the \"{}\" struct.", name))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.13s
[INFO] running `"docker" "inspect" "7f0af8d9d8b949d5b52009d2699e19d56bae41130c0c388e575a22f4232cde73"`
[INFO] running `"docker" "rm" "-f" "7f0af8d9d8b949d5b52009d2699e19d56bae41130c0c388e575a22f4232cde73"`
[INFO] [stdout] 7f0af8d9d8b949d5b52009d2699e19d56bae41130c0c388e575a22f4232cde73