[INFO] crate libcoinche 0.2.0 is already in cache
[INFO] extracting crate libcoinche 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/libcoinche/0.2.0
[INFO] extracting crate libcoinche 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/libcoinche/0.2.0
[INFO] validating manifest of libcoinche-0.2.0 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 libcoinche-0.2.0 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 libcoinche-0.2.0
[INFO] finished frobbing libcoinche-0.2.0
[INFO] frobbed toml for libcoinche-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/libcoinche/0.2.0/Cargo.toml
[INFO] started frobbing libcoinche-0.2.0
[INFO] finished frobbing libcoinche-0.2.0
[INFO] frobbed toml for libcoinche-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/libcoinche/0.2.0/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 libcoinche-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/libcoinche/0.2.0:/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] db3f30c6ab2f86d4f75f96574977d9c71bef75d7f0cad76304b46c09e2dcfd4c
[INFO] running `"docker" "start" "-a" "db3f30c6ab2f86d4f75f96574977d9c71bef75d7f0cad76304b46c09e2dcfd4c"`
[INFO] [stderr]     Checking libcoinche v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/bid.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             author: author,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `author`
[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/bid.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             trump: trump,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `trump`
[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/bid.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             target: target,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `target`
[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/bid.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |             first: first,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `first`
[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/game.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |             contract: contract,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `contract`
[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/game.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             winners: winners,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `winners`
[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/game.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             scores: scores,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `scores`
[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/trick.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             first: first,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `first`
[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/bid.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             author: author,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `author`
[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/bid.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             trump: trump,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `trump`
[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/bid.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             target: target,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `target`
[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/bid.rs:194:13
[INFO] [stderr]     |
[INFO] [stderr] 194 |             first: first,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `first`
[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/game.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |             contract: contract,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `contract`
[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/game.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             winners: winners,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^ help: replace it with: `winners`
[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/game.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             scores: scores,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `scores`
[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/trick.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |             first: first,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `first`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn score(&self) -> i32 {
[INFO] [stderr]    |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn to_str(&self) -> &'static str {
[INFO] [stderr]    |                   ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:71:20
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn victory(&self, points: i32, capot: bool) -> bool {
[INFO] [stderr]    |                    ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/cards.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Heart = 1 << 0,
[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: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/cards.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Rank7 = 1 << 0,
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |             v = v >> 1;
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `v >>= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `cards::Hand`
[INFO] [stderr]    --> src/cards.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 | /     pub fn new() -> Self {
[INFO] [stderr] 229 | |         Hand(0)
[INFO] [stderr] 230 | |     }
[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] 224 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:315:13
[INFO] [stderr]     |
[INFO] [stderr] 315 |             s = s + ",";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: replace it with: `s += ","`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `cards::Deck`
[INFO] [stderr]    --> src/cards.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 | /     pub fn new() -> Self {
[INFO] [stderr] 331 | |         let mut d = Deck { cards: Vec::with_capacity(32) };
[INFO] [stderr] 332 | |
[INFO] [stderr] 333 | |         for i in 0..32 {
[INFO] [stderr] ...   |
[INFO] [stderr] 337 | |         d
[INFO] [stderr] 338 | |     }
[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] 323 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:399:13
[INFO] [stderr]     |
[INFO] [stderr] 399 |             s = s + ",";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: replace it with: `s += ","`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/trick.rs:32:63
[INFO] [stderr]    |
[INFO] [stderr] 32 |               .map(|c| c.map_or(0, |c| points::score(c, trump)))
[INFO] [stderr]    |  _______________________________________________________________^
[INFO] [stderr] 33 | |             .fold(0, |a, b| a + b)
[INFO] [stderr]    | |__________________________________^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn score(&self) -> i32 {
[INFO] [stderr]    |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn to_str(&self) -> &'static str {
[INFO] [stderr]    |                   ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/bid.rs:71:20
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn victory(&self, points: i32, capot: bool) -> bool {
[INFO] [stderr]    |                    ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[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/bid.rs:375:9
[INFO] [stderr]     |
[INFO] [stderr] 375 | /         match auction.complete() {
[INFO] [stderr] 376 | |             Err(_) => assert!(false),
[INFO] [stderr] 377 | |             _ => {}
[INFO] [stderr] 378 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Err(_) = auction.complete() { assert!(false) }`
[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] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/cards.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Heart = 1 << 0,
[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: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/cards.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |     Rank7 = 1 << 0,
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |             v = v >> 1;
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `v >>= 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `cards::Hand`
[INFO] [stderr]    --> src/cards.rs:228:5
[INFO] [stderr]     |
[INFO] [stderr] 228 | /     pub fn new() -> Self {
[INFO] [stderr] 229 | |         Hand(0)
[INFO] [stderr] 230 | |     }
[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] 224 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:315:13
[INFO] [stderr]     |
[INFO] [stderr] 315 |             s = s + ",";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: replace it with: `s += ","`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `cards::Deck`
[INFO] [stderr]    --> src/cards.rs:330:5
[INFO] [stderr]     |
[INFO] [stderr] 330 | /     pub fn new() -> Self {
[INFO] [stderr] 331 | |         let mut d = Deck { cards: Vec::with_capacity(32) };
[INFO] [stderr] 332 | |
[INFO] [stderr] 333 | |         for i in 0..32 {
[INFO] [stderr] ...   |
[INFO] [stderr] 337 | |         d
[INFO] [stderr] 338 | |     }
[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] 323 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/cards.rs:399:13
[INFO] [stderr]     |
[INFO] [stderr] 399 |             s = s + ",";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: replace it with: `s += ","`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/trick.rs:32:63
[INFO] [stderr]    |
[INFO] [stderr] 32 |               .map(|c| c.map_or(0, |c| points::score(c, trump)))
[INFO] [stderr]    |  _______________________________________________________________^
[INFO] [stderr] 33 | |             .fold(0, |a, b| a + b)
[INFO] [stderr]    | |__________________________________^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `"docker" "inspect" "db3f30c6ab2f86d4f75f96574977d9c71bef75d7f0cad76304b46c09e2dcfd4c"`
[INFO] running `"docker" "rm" "-f" "db3f30c6ab2f86d4f75f96574977d9c71bef75d7f0cad76304b46c09e2dcfd4c"`
[INFO] [stdout] db3f30c6ab2f86d4f75f96574977d9c71bef75d7f0cad76304b46c09e2dcfd4c