[INFO] crate error-type 0.1.2 is already in cache
[INFO] extracting crate error-type 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/error-type/0.1.2
[INFO] extracting crate error-type 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/error-type/0.1.2
[INFO] validating manifest of error-type-0.1.2 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 error-type-0.1.2 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 error-type-0.1.2
[INFO] finished frobbing error-type-0.1.2
[INFO] frobbed toml for error-type-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/error-type/0.1.2/Cargo.toml
[INFO] started frobbing error-type-0.1.2
[INFO] finished frobbing error-type-0.1.2
[INFO] frobbed toml for error-type-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/error-type/0.1.2/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 error-type-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/error-type/0.1.2:/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] 074dadc0ae2e7813495fed47557bd20d85ae055c55fede575f5ca3849176f699
[INFO] running `"docker" "start" "-a" "074dadc0ae2e7813495fed47557bd20d85ae055c55fede575f5ca3849176f699"`
[INFO] [stderr]     Checking error-type v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: type alias is never used: `Debug`
[INFO] [stderr]  --> tests/hygiene.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | type Debug = ();
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Display`
[INFO] [stderr]  --> tests/hygiene.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | type Display = ();
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Error`
[INFO] [stderr]  --> tests/hygiene.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type Error = ();
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `From`
[INFO] [stderr]  --> tests/hygiene.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | type From = ();
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Option`
[INFO] [stderr]   --> tests/hygiene.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Option = ();
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]   --> tests/hygiene.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | type Result = ();
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> tests/quickie.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let _: E = err!(format!("Another test string"));
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Another test string".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> tests/quickie.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |     assert_eq!(&format!("{}", e.description()), "Where's the Kaboom?!");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `e.description().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[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: useless use of `format!`
[INFO] [stderr]   --> tests/quickie.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |     assert_eq!(&format!("{}", e.description()), "Where's the Kaboom?!");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `e.description().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[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: useless use of `format!`
[INFO] [stderr]   --> tests/quickie.rs:51:16
[INFO] [stderr]    |
[INFO] [stderr] 51 |     assert_eq!(format!("{}", e.description()), "Hello, World!");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `e.description().to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "074dadc0ae2e7813495fed47557bd20d85ae055c55fede575f5ca3849176f699"`
[INFO] running `"docker" "rm" "-f" "074dadc0ae2e7813495fed47557bd20d85ae055c55fede575f5ca3849176f699"`
[INFO] [stdout] 074dadc0ae2e7813495fed47557bd20d85ae055c55fede575f5ca3849176f699