[INFO] crate permutator 0.3.3 is already in cache
[INFO] extracting crate permutator 0.3.3 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/permutator/0.3.3
[INFO] extracting crate permutator 0.3.3 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/permutator/0.3.3
[INFO] validating manifest of permutator-0.3.3 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of permutator-0.3.3 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing permutator-0.3.3
[INFO] finished frobbing permutator-0.3.3
[INFO] frobbed toml for permutator-0.3.3 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/permutator/0.3.3/Cargo.toml
[INFO] started frobbing permutator-0.3.3
[INFO] finished frobbing permutator-0.3.3
[INFO] frobbed toml for permutator-0.3.3 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/permutator/0.3.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking permutator-0.3.3 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/permutator/0.3.3:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 075a9fd814e25f53085c9581ae87a8f7d60f9e8af512d5ed194da9d5a502452b
[INFO] running `"docker" "start" "-a" "075a9fd814e25f53085c9581ae87a8f7d60f9e8af512d5ed194da9d5a502452b"`
[INFO] [stderr]     Checking permutator v0.3.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1455:106
[INFO] [stderr]      |
[INFO] [stderr] 1455 |     fn move_cur_res<'a, T, R>(c : &mut [usize], domain : &'a [T], result : &mut R, next_result_fn : &mut FnMut(usize, usize, &mut R)) {
[INFO] [stderr]      |                                                                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(usize, usize, &mut R)`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6676:122
[INFO] [stderr]      |
[INFO] [stderr] 6676 |         unsafe fn start_combination_process<'a>(data : &'a[i32], cur_result : *mut [i32], k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6701:37
[INFO] [stderr]      |
[INFO] [stderr] 6701 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6734:130
[INFO] [stderr]      |
[INFO] [stderr] 6734 |         fn start_combination_process<'a>(data : &'a[i32], cur_result : Rc<RefCell<&'a mut[i32]>>, k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6757:33
[INFO] [stderr]      |
[INFO] [stderr] 6757 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6903:33
[INFO] [stderr]      |
[INFO] [stderr] 6903 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6940:122
[INFO] [stderr]      |
[INFO] [stderr] 6940 |         unsafe fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : *mut [i32], consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6960:37
[INFO] [stderr]      |
[INFO] [stderr] 6960 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:6990:128
[INFO] [stderr]      |
[INFO] [stderr] 6990 |         unsafe fn start_cartesian_product_process<'a>(data : &'a[i32], n : usize, cur_result : *mut [i32], consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7017:37
[INFO] [stderr]      |
[INFO] [stderr] 7017 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7046:131
[INFO] [stderr]      |
[INFO] [stderr] 7046 |         fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : Rc<RefCell<&'a mut [i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7064:33
[INFO] [stderr]      |
[INFO] [stderr] 7064 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7093:137
[INFO] [stderr]      |
[INFO] [stderr] 7093 |         fn start_cartesian_product_process<'a>(data : &'a[i32], n : usize, cur_result : Rc<RefCell<&'a mut [i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7112:33
[INFO] [stderr]      |
[INFO] [stderr] 7112 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7142:131
[INFO] [stderr]      |
[INFO] [stderr] 7142 |         fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : Rc<RefCell<&'a mut [i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7161:33
[INFO] [stderr]      |
[INFO] [stderr] 7161 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7348:124
[INFO] [stderr]      |
[INFO] [stderr] 7348 |         unsafe fn start_k_permutation_process<'a>(data : &'a[i32], cur_result : *mut [i32], k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7368:37
[INFO] [stderr]      |
[INFO] [stderr] 7368 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7397:133
[INFO] [stderr]      |
[INFO] [stderr] 7397 |         fn start_k_permutation_process<'a>(data : &'a[i32], cur_result : Rc<RefCell<&'a mut [i32]>>, k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7421:33
[INFO] [stderr]      |
[INFO] [stderr] 7421 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/copy/mod.rs:7462:33
[INFO] [stderr]      |
[INFO] [stderr] 7462 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1455:106
[INFO] [stderr]      |
[INFO] [stderr] 1455 |     fn move_cur_res<'a, T, R>(c : &mut [usize], domain : &'a [T], result : &mut R, next_result_fn : &mut FnMut(usize, usize, &mut R)) {
[INFO] [stderr]      |                                                                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(usize, usize, &mut R)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:7905:126
[INFO] [stderr]      |
[INFO] [stderr] 7905 |         unsafe fn start_combination_process<'a>(data : &'a[i32], cur_result : *mut [&'a i32], k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                              ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:7930:37
[INFO] [stderr]      |
[INFO] [stderr] 7930 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:7963:134
[INFO] [stderr]      |
[INFO] [stderr] 7963 |         fn start_combination_process<'a>(data : &'a[i32], cur_result : Rc<RefCell<&'a mut[&'a i32]>>, k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:7986:33
[INFO] [stderr]      |
[INFO] [stderr] 7986 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8132:33
[INFO] [stderr]      |
[INFO] [stderr] 8132 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8169:126
[INFO] [stderr]      |
[INFO] [stderr] 8169 |         unsafe fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : *mut [&'a i32], consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                              ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8189:37
[INFO] [stderr]      |
[INFO] [stderr] 8189 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8219:132
[INFO] [stderr]      |
[INFO] [stderr] 8219 |         unsafe fn start_cartesian_product_process<'a>(data : &'a[i32], n : usize, cur_result : *mut [&'a i32], consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                    ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8246:37
[INFO] [stderr]      |
[INFO] [stderr] 8246 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8275:135
[INFO] [stderr]      |
[INFO] [stderr] 8275 |         fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : Rc<RefCell<&'a mut [&'a i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8293:33
[INFO] [stderr]      |
[INFO] [stderr] 8293 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8322:141
[INFO] [stderr]      |
[INFO] [stderr] 8322 |         fn start_cartesian_product_process<'a>(data : &'a[i32], n : usize, cur_result : Rc<RefCell<&'a mut [&'a i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                             ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8341:33
[INFO] [stderr]      |
[INFO] [stderr] 8341 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8371:135
[INFO] [stderr]      |
[INFO] [stderr] 8371 |         fn start_cartesian_product_process<'a>(data : &'a[&'a[i32]], cur_result : Rc<RefCell<&'a mut [&'a i32]>>, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8390:33
[INFO] [stderr]      |
[INFO] [stderr] 8390 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8577:128
[INFO] [stderr]      |
[INFO] [stderr] 8577 |         unsafe fn start_k_permutation_process<'a>(data : &'a[i32], cur_result : *mut [&'a i32], k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8597:37
[INFO] [stderr]      |
[INFO] [stderr] 8597 |             let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                     ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8626:137
[INFO] [stderr]      |
[INFO] [stderr] 8626 |         fn start_k_permutation_process<'a>(data : &'a[i32], cur_result : Rc<RefCell<&'a mut [&'a i32]>>, k : usize, consumers : Vec<Box<Consumer + 'a>>) {
[INFO] [stderr]      |                                                                                                                                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn Consumer + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8650:33
[INFO] [stderr]      |
[INFO] [stderr] 8650 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:8691:33
[INFO] [stderr]      |
[INFO] [stderr] 8691 |         let consumers : Vec<Box<Consumer>> = vec![Box::new(worker1), Box::new(worker2)];
[INFO] [stderr]      |                                 ^^^^^^^^ help: use `dyn`: `dyn Consumer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `"docker" "inspect" "075a9fd814e25f53085c9581ae87a8f7d60f9e8af512d5ed194da9d5a502452b"`
[INFO] running `"docker" "rm" "-f" "075a9fd814e25f53085c9581ae87a8f7d60f9e8af512d5ed194da9d5a502452b"`
[INFO] [stdout] 075a9fd814e25f53085c9581ae87a8f7d60f9e8af512d5ed194da9d5a502452b