[INFO] crate ruma-signatures 0.4.1 is already in cache
[INFO] extracting crate ruma-signatures 0.4.1 into work/ex/clippy-test-run/sources/stable/reg/ruma-signatures/0.4.1
[INFO] extracting crate ruma-signatures 0.4.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ruma-signatures/0.4.1
[INFO] validating manifest of ruma-signatures-0.4.1 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 ruma-signatures-0.4.1 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 ruma-signatures-0.4.1
[INFO] finished frobbing ruma-signatures-0.4.1
[INFO] frobbed toml for ruma-signatures-0.4.1 written to work/ex/clippy-test-run/sources/stable/reg/ruma-signatures/0.4.1/Cargo.toml
[INFO] started frobbing ruma-signatures-0.4.1
[INFO] finished frobbing ruma-signatures-0.4.1
[INFO] frobbed toml for ruma-signatures-0.4.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ruma-signatures/0.4.1/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 ruma-signatures-0.4.1 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/ruma-signatures/0.4.1:/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] ef27104e6358abcc21561de656e22f3eebf35f67f4140f37391d0c0cbbdb9acb
[INFO] running `"docker" "start" "-a" "ef27104e6358abcc21561de656e22f3eebf35f67f4140f37391d0c0cbbdb9acb"`
[INFO] [stderr]     Checking ruma-signatures v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             version: version,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:426:13
[INFO] [stderr]     |
[INFO] [stderr] 426 |             algorithm: algorithm,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `algorithm`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:428:13
[INFO] [stderr]     |
[INFO] [stderr] 428 |             version: version,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:642:17
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 algorithm: algorithm,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `algorithm`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:644:17
[INFO] [stderr]     |
[INFO] [stderr] 644 |                 version: version,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:744:13
[INFO] [stderr]     |
[INFO] [stderr] 744 |             signatures: signatures,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `signatures`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:347:13
[INFO] [stderr]     |
[INFO] [stderr] 347 |             version: version,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:426:13
[INFO] [stderr]     |
[INFO] [stderr] 426 |             algorithm: algorithm,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `algorithm`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:428:13
[INFO] [stderr]     |
[INFO] [stderr] 428 |             version: version,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:642:17
[INFO] [stderr]     |
[INFO] [stderr] 642 |                 algorithm: algorithm,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `algorithm`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:644:17
[INFO] [stderr]     |
[INFO] [stderr] 644 |                 version: version,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `version`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:744:13
[INFO] [stderr]     |
[INFO] [stderr] 744 |             signatures: signatures,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `signatures`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/lib.rs:681:24
[INFO] [stderr]     |
[INFO] [stderr] 681 |     const PUBLIC_KEY: &'static str = "XGX0JRS2Af3be3knz2fBiRbApjm2Dh61gXDJA8kcJNI";
[INFO] [stderr]     |                       -^^^^^^^---- help: consider removing `'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]    --> src/lib.rs:682:25
[INFO] [stderr]     |
[INFO] [stderr] 682 |     const PRIVATE_KEY: &'static str = "YJDBA9Xnr2sVqXD9Vj7XVUnmFZcZrlw8Md7kMW+3XA0";
[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]    --> src/lib.rs:684:34
[INFO] [stderr]     |
[INFO] [stderr] 684 |     const EMPTY_JSON_SIGNATURE: &'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]    --> src/lib.rs:686:36
[INFO] [stderr]     |
[INFO] [stderr] 686 |     const MINIMAL_JSON_SIGNATURE: &'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: you should consider deriving a `Default` implementation for `Ed25519Verifier`
[INFO] [stderr]    --> src/lib.rs:362:5
[INFO] [stderr]     |
[INFO] [stderr] 362 | /     pub fn new() -> Self {
[INFO] [stderr] 363 | |         Ed25519Verifier
[INFO] [stderr] 364 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 263 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: item `Signatures` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:462:1
[INFO] [stderr]     |
[INFO] [stderr] 462 | / impl Signatures {
[INFO] [stderr] 463 | |     /// Initializes a new empty Signatures.
[INFO] [stderr] 464 | |     pub fn new() -> Self {
[INFO] [stderr] 465 | |         Signatures {
[INFO] [stderr] ...   |
[INFO] [stderr] 512 | |     }
[INFO] [stderr] 513 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Signatures`
[INFO] [stderr]    --> src/lib.rs:464:5
[INFO] [stderr]     |
[INFO] [stderr] 464 | /     pub fn new() -> Self {
[INFO] [stderr] 465 | |         Signatures {
[INFO] [stderr] 466 | |             map: HashMap::new(),
[INFO] [stderr] 467 | |         }
[INFO] [stderr] 468 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 307 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/lib.rs:548:20
[INFO] [stderr]     |
[INFO] [stderr] 548 |               if let Err(_) = signatures.insert(&server_name, signature_set) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 549 | |                 return Err(M::Error::invalid_value(Unexpected::Str(&server_name), &self));
[INFO] [stderr] 550 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if signatures.insert(&server_name, signature_set).is_err()`
[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: item `SignatureSet` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:557:1
[INFO] [stderr]     |
[INFO] [stderr] 557 | / impl SignatureSet {
[INFO] [stderr] 558 | |     /// Initializes a new empty SignatureSet.
[INFO] [stderr] 559 | |     pub fn new() -> Self {
[INFO] [stderr] 560 | |         SignatureSet {
[INFO] [stderr] ...   |
[INFO] [stderr] 591 | |     }
[INFO] [stderr] 592 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `SignatureSet`
[INFO] [stderr]    --> src/lib.rs:559:5
[INFO] [stderr]     |
[INFO] [stderr] 559 | /     pub fn new() -> Self {
[INFO] [stderr] 560 | |         SignatureSet {
[INFO] [stderr] 561 | |             set: HashSet::new(),
[INFO] [stderr] 562 | |         }
[INFO] [stderr] 563 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 316 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Ed25519Verifier`
[INFO] [stderr]    --> src/lib.rs:362:5
[INFO] [stderr]     |
[INFO] [stderr] 362 | /     pub fn new() -> Self {
[INFO] [stderr] 363 | |         Ed25519Verifier
[INFO] [stderr] 364 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 263 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: item `Signatures` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:462:1
[INFO] [stderr]     |
[INFO] [stderr] 462 | / impl Signatures {
[INFO] [stderr] 463 | |     /// Initializes a new empty Signatures.
[INFO] [stderr] 464 | |     pub fn new() -> Self {
[INFO] [stderr] 465 | |         Signatures {
[INFO] [stderr] ...   |
[INFO] [stderr] 512 | |     }
[INFO] [stderr] 513 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Signatures`
[INFO] [stderr]    --> src/lib.rs:464:5
[INFO] [stderr]     |
[INFO] [stderr] 464 | /     pub fn new() -> Self {
[INFO] [stderr] 465 | |         Signatures {
[INFO] [stderr] 466 | |             map: HashMap::new(),
[INFO] [stderr] 467 | |         }
[INFO] [stderr] 468 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 307 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/lib.rs:548:20
[INFO] [stderr]     |
[INFO] [stderr] 548 |               if let Err(_) = signatures.insert(&server_name, signature_set) {
[INFO] [stderr]     |  _____________-      ^^^^^^
[INFO] [stderr] 549 | |                 return Err(M::Error::invalid_value(Unexpected::Str(&server_name), &self));
[INFO] [stderr] 550 | |             }
[INFO] [stderr]     | |_____________- help: try this: `if signatures.insert(&server_name, signature_set).is_err()`
[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: item `SignatureSet` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:557:1
[INFO] [stderr]     |
[INFO] [stderr] 557 | / impl SignatureSet {
[INFO] [stderr] 558 | |     /// Initializes a new empty SignatureSet.
[INFO] [stderr] 559 | |     pub fn new() -> Self {
[INFO] [stderr] 560 | |         SignatureSet {
[INFO] [stderr] ...   |
[INFO] [stderr] 591 | |     }
[INFO] [stderr] 592 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `SignatureSet`
[INFO] [stderr]    --> src/lib.rs:559:5
[INFO] [stderr]     |
[INFO] [stderr] 559 | /     pub fn new() -> Self {
[INFO] [stderr] 560 | |         SignatureSet {
[INFO] [stderr] 561 | |             set: HashSet::new(),
[INFO] [stderr] 562 | |         }
[INFO] [stderr] 563 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 316 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `"docker" "inspect" "ef27104e6358abcc21561de656e22f3eebf35f67f4140f37391d0c0cbbdb9acb"`
[INFO] running `"docker" "rm" "-f" "ef27104e6358abcc21561de656e22f3eebf35f67f4140f37391d0c0cbbdb9acb"`
[INFO] [stdout] ef27104e6358abcc21561de656e22f3eebf35f67f4140f37391d0c0cbbdb9acb