[INFO] crate indep 0.1.1 is already in cache
[INFO] extracting crate indep 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/indep/0.1.1
[INFO] extracting crate indep 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/indep/0.1.1
[INFO] validating manifest of indep-0.1.1 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 indep-0.1.1 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 indep-0.1.1
[INFO] finished frobbing indep-0.1.1
[INFO] frobbed toml for indep-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/indep/0.1.1/Cargo.toml
[INFO] started frobbing indep-0.1.1
[INFO] finished frobbing indep-0.1.1
[INFO] frobbed toml for indep-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/indep/0.1.1/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 indep-0.1.1 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/indep/0.1.1:/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] d95ffb36494767bb3b27cfc68c7ded09d7eef2816d4691505ba769a27cb2ee6f
[INFO] running `"docker" "start" "-a" "d95ffb36494767bb3b27cfc68c7ded09d7eef2816d4691505ba769a27cb2ee6f"`
[INFO] [stderr]     Checking indep v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]    --> src/sync.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         use std::rc::Rc;
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]    --> src/sync.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |         use std::cell::RefCell;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]    --> src/async.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |         use std::sync::Arc;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::RwLock`
[INFO] [stderr]    --> src/async.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         use std::sync::RwLock;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/sync.rs:219:17
[INFO] [stderr]     |
[INFO] [stderr] 219 |                 format!("Impl1 says 'Trait2'")
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl1 says 'Trait2'".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]    --> src/sync.rs:265:17
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 format!("Impl2 says 'Trait2'")
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl2 says 'Trait2'".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] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/sync.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^ help: try this: `if let &Implementation::$tra(ref tr) = i { indep_reqs_sync!{Impl2, [Trait1: [t1]]} }`
[INFO] [stderr] ...
[INFO] [stderr] 275 |           indep_reqs_sync!{Impl2, [Trait1: [t1]]}
[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] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/sync.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 275 |           indep_reqs_sync!{Impl2, [Trait1: [t1]]}
[INFO] [stderr]     |           --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/sync.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 330 |           indep_reqs_sync!{Impl3, [Trait1: [t1_1], Trait2: [t2_1,t2_2]]}
[INFO] [stderr]     |           -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/sync.rs:12:17
[INFO] [stderr]     |
[INFO] [stderr] 12  | /                 match self {
[INFO] [stderr] 13  | |                     $(&Implementation::$tra(_) => write!(f, "{}", stringify!($tra))),*
[INFO] [stderr] 14  | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 340 |       indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |       -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/sync.rs:26:48
[INFO] [stderr]     |
[INFO] [stderr] 26  |             fn set(&mut self, &Implementation, &Vec<String>);
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/sync.rs:53:25
[INFO] [stderr]     |
[INFO] [stderr] 53  |                     for ref pimp in pd.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let pimp = &pd.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/sync.rs:76:25
[INFO] [stderr]     |
[INFO] [stderr] 76  |                     for ref aimp in ad.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let aimp = &ad.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/sync.rs:80:25
[INFO] [stderr]     |
[INFO] [stderr] 80  |                     for ref pimp in pd.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let pimp = &pd.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/async.rs:219:17
[INFO] [stderr]     |
[INFO] [stderr] 219 |                 format!("Impl1 says 'Trait2'")
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl1 says 'Trait2'".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] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> src/async.rs:265:17
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 format!("Impl2 says 'Trait2'")
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl2 says 'Trait2'".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] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/async.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^ help: try this: `if let &Implementation::$tra(ref tr) = i { indep_reqs_async!{Impl2, [Trait1: [t1]]} }`
[INFO] [stderr] ...
[INFO] [stderr] 275 |           indep_reqs_async!{Impl2, [Trait1: [t1]]}
[INFO] [stderr]     |           ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/async.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 275 |           indep_reqs_async!{Impl2, [Trait1: [t1]]}
[INFO] [stderr]     |           ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/async.rs:131:17
[INFO] [stderr]     |
[INFO] [stderr] 131 | /                 match i {
[INFO] [stderr] 132 | |                     $(
[INFO] [stderr] 133 | |                     &Implementation::$tra(ref tr) => {
[INFO] [stderr] 134 | |                         $(
[INFO] [stderr] ...   |
[INFO] [stderr] 149 | |                     _ => {}
[INFO] [stderr] 150 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 330 |           indep_reqs_async!{Impl3, [Trait1: [t1_1], Trait2: [t2_1,t2_2]]}
[INFO] [stderr]     |           --------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/async.rs:12:17
[INFO] [stderr]     |
[INFO] [stderr] 12  | /                 match self {
[INFO] [stderr] 13  | |                     $(&Implementation::$tra(_) => write!(f, "{}", stringify!($tra))),*
[INFO] [stderr] 14  | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr] ...
[INFO] [stderr] 340 |       indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |       --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/async.rs:26:48
[INFO] [stderr]     |
[INFO] [stderr] 26  |             fn set(&mut self, &Implementation, &Vec<String>);
[INFO] [stderr]     |                                                ^^^^^^^^^^^^ help: change this to: `&[String]`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/async.rs:53:25
[INFO] [stderr]     |
[INFO] [stderr] 53  |                     for ref pimp in pd.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let pimp = &pd.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/async.rs:76:25
[INFO] [stderr]     |
[INFO] [stderr] 76  |                     for ref aimp in ad.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let aimp = &ad.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/async.rs:80:25
[INFO] [stderr]     |
[INFO] [stderr] 80  |                     for ref pimp in pd.impls() {
[INFO] [stderr]     |                         ^^^^^^^^    ---------- help: try: `let pimp = &pd.impls();`
[INFO] [stderr] ...
[INFO] [stderr] 340 |     indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     |     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]   --> examples/async.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     use std::sync::Arc;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::RwLock`
[INFO] [stderr]   --> examples/async.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     use std::sync::RwLock;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> examples/sync.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     use std::rc::Rc;
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> examples/sync.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use std::cell::RefCell;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `i1::Impl1`
[INFO] [stderr]   --> examples/sync.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 | /         pub fn new() -> Impl1 {
[INFO] [stderr] 56 | |             Impl1
[INFO] [stderr] 57 | |         }
[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] 48 |     #[derive(Default)]
[INFO] [stderr] 49 |     struct Impl1;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `i1::Impl1`
[INFO] [stderr]   --> examples/async.rs:55:6
[INFO] [stderr]    |
[INFO] [stderr] 55 |           pub fn new() -> Impl1 {
[INFO] [stderr]    |  _________^
[INFO] [stderr] 56 | |             Impl1
[INFO] [stderr] 57 | |         }
[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] 48 |     #[derive(Default)]
[INFO] [stderr] 49 |     struct Impl1;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> examples/sync.rs:68:13
[INFO] [stderr]   --> examples/async.rs:68:10
[INFO] [stderr]    |
[INFO] [stderr] 68 |             format!("Impl1 says 'Trait2'")
[INFO] [stderr]    |
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl1 says 'Trait2'".to_string()`
[INFO] [stderr] 68 |             format!("Impl1 says 'Trait2'")
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl1 says 'Trait2'".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]    |
[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: you should consider deriving a `Default` implementation for `i2::Impl2`
[INFO] [stderr]    --> examples/sync.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 | /         pub fn new() -> Impl2 {
[INFO] [stderr] 118 | |             Impl2 {
[INFO] [stderr] 119 | |                 t1:None
[INFO] [stderr] 120 | |             }
[INFO] [stderr] 121 | |         }
[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] 105 |     #[derive(Default)]
[INFO] [stderr] 106 |     struct Impl2 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> examples/sync.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             format!("Impl2 says 'Trait2'")
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl2 says 'Trait2'".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] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `i2::Impl2`
[INFO] [stderr]    --> examples/async.rs:117:6
[INFO] [stderr]     |
[INFO] [stderr] 117 |           pub fn new() -> Impl2 {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 118 | |             Impl2 {
[INFO] [stderr] 119 | |                 t1:None
[INFO] [stderr] 120 | |             }
[INFO] [stderr] 121 | |         }
[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] 105 |     #[derive(Default)]
[INFO] [stderr] 106 |     struct Impl2 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]    --> examples/async.rs:127:10
[INFO] [stderr]     |
[INFO] [stderr] 127 |             format!("Impl2 says 'Trait2'")
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Impl2 says 'Trait2'".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] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `i3::Impl3`
[INFO] [stderr]    --> examples/sync.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 | /         pub fn new() -> Impl3 {
[INFO] [stderr] 180 | |             Impl3 {
[INFO] [stderr] 181 | |                 t1_1: None,
[INFO] [stderr] 182 | |                 t2_1: None,
[INFO] [stderr] 183 | |                 t2_2: None,
[INFO] [stderr] 184 | |             }
[INFO] [stderr] 185 | |         }
[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] 161 |     #[derive(Default)]
[INFO] [stderr] 162 |     struct Impl3 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `i3::Impl3`
[INFO] [stderr]    --> examples/async.rs:179:9
[INFO] [stderr]     |
[INFO] [stderr] 179 | /         pub fn new() -> Impl3 {
[INFO] [stderr] 180 | |             Impl3 {
[INFO] [stderr] 181 | |                 t1_1: None,
[INFO] [stderr] 182 | |                 t2_1: None,
[INFO] [stderr] 183 | |                 t2_2: None,
[INFO] [stderr] 184 | |             }
[INFO] [stderr] 185 | |         }
[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] 161 |     #[derive(Default)]
[INFO] [stderr] 162 |     struct Impl3 {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> examples/sync.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/sync.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/sync.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/sync.rs:217:1
[INFO] [stderr]     |
[INFO] [stderr] 217 | indep_pool_sync!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> examples/async.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/async.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/async.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> examples/async.rs:216:1
[INFO] [stderr]     |
[INFO] [stderr] 216 | indep_pool_async!{Base, Trait1,Trait2,Trait3}    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[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 1.64s
[INFO] running `"docker" "inspect" "d95ffb36494767bb3b27cfc68c7ded09d7eef2816d4691505ba769a27cb2ee6f"`
[INFO] running `"docker" "rm" "-f" "d95ffb36494767bb3b27cfc68c7ded09d7eef2816d4691505ba769a27cb2ee6f"`
[INFO] [stdout] d95ffb36494767bb3b27cfc68c7ded09d7eef2816d4691505ba769a27cb2ee6f