[INFO] crate ai_kit 0.1.0 is already in cache
[INFO] extracting crate ai_kit 0.1.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/ai_kit/0.1.0
[INFO] extracting crate ai_kit 0.1.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ai_kit/0.1.0
[INFO] validating manifest of ai_kit-0.1.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ai_kit-0.1.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ai_kit-0.1.0
[INFO] finished frobbing ai_kit-0.1.0
[INFO] frobbed toml for ai_kit-0.1.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/ai_kit/0.1.0/Cargo.toml
[INFO] started frobbing ai_kit-0.1.0
[INFO] finished frobbing ai_kit-0.1.0
[INFO] frobbed toml for ai_kit-0.1.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ai_kit/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ai_kit-0.1.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/ai_kit/0.1.0:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 95ad1079ba83366ed981b3443a5448e8c4c393f8398991584a3fad5e147ed766
[INFO] running `"docker" "start" "-a" "95ad1079ba83366ed981b3443a5448e8c4c393f8398991584a3fad5e147ed766"`
[INFO] [stderr]    Compiling pulldown-cmark v0.0.15
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]     Checking skeptic v0.11.0
[INFO] [stderr]    Compiling ai_kit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/pedigree/mod.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         /// Return unify derived from this one
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 137 |         self.pedigree.get_descendents(id)
[INFO] [stderr]     |         --------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/pedigree/mod.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |         /// Return all unify derived in and after the specified generation
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 142 |         let mut subsequent_inferences = Vec::new();
[INFO] [stderr]     |         ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/pedigree/mod.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         /// Return unify derived from this one
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 137 |         self.pedigree.get_descendents(id)
[INFO] [stderr]     |         --------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/pedigree/mod.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |         /// Return all unify derived in and after the specified generation
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 142 |         let mut subsequent_inferences = Vec::new();
[INFO] [stderr]     |         ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/constraints/numerical.rs:126:33
[INFO] [stderr]     |
[INFO] [stderr] 126 |             |x: &T, y: &T, op: &Fn(f64, f64) -> f64| -> Option<T> { x.to_float().and_then(|x| y.to_float().and_then(|y| Some(T::float(op(x, y))))) };
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[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/constraints/mod.rs:85:32
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn and_then(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constraints/mod.rs:93:34
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn if_partial(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/datum/mod.rs:47:45
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Datum::Int(ref i_value) => Some((i_value.clone() as f64)),
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/infer/mod.rs:140:66
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn chain_until(&self, max_iterations: usize, satisfied: &Fn(&U) -> bool) -> (Option<(U, String)>, Self) {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&U) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/pedigree/mod.rs:83:115
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 Some((construct_id_origin_tuples_for_generation(generation), self.inf_graph.subsequent_inferences((generation_idx + 1))))
[INFO] [stderr]    |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:383:50
[INFO] [stderr]     |
[INFO] [stderr] 383 |                                  root_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:384:50
[INFO] [stderr]     |
[INFO] [stderr] 384 |                                  node_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:385:55
[INFO] [stderr]     |
[INFO] [stderr] 385 |                                  relation_renderder: &Fn(String, String) -> String,
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:399:55
[INFO] [stderr]     |
[INFO] [stderr] 399 |                                       node_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:400:60
[INFO] [stderr]     |
[INFO] [stderr] 400 |                                       relation_renderder: &Fn(String, String) -> String)
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:423:81
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn render_inference_tree_pedigree(&self, d_id: &String, node_renderer: &Fn(String) -> String) -> String {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/planner/mod.rs:234:58
[INFO] [stderr]     |
[INFO] [stderr] 234 |                                               criteria: &Fn(&Vec<Self>, &Bindings<T>) -> Option<X>)
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<Self>, &Bindings<T>) -> Option<X>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:8:40
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:8:64
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stderr]   |                                                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(E) -> Option<A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:20:54
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fold_while_some<A, E>(init_acc: A, iter: &mut Iterator<Item = E>, f: &Fn(A, E) -> Option<A>) -> Option<A> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:20:78
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fold_while_some<A, E>(init_acc: A, iter: &mut Iterator<Item = E>, f: &Fn(A, E) -> Option<A>) -> Option<A> {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(A, E) -> Option<A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/constraints/numerical.rs:126:33
[INFO] [stderr]     |
[INFO] [stderr] 126 |             |x: &T, y: &T, op: &Fn(f64, f64) -> f64| -> Option<T> { x.to_float().and_then(|x| y.to_float().and_then(|y| Some(T::float(op(x, y))))) };
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[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/constraints/mod.rs:85:32
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn and_then(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/constraints/mod.rs:93:34
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn if_partial(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/datum/mod.rs:47:45
[INFO] [stderr]    |
[INFO] [stderr] 47 |             Datum::Int(ref i_value) => Some((i_value.clone() as f64)),
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/datum/tests.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/infer/mod.rs:140:66
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn chain_until(&self, max_iterations: usize, satisfied: &Fn(&U) -> bool) -> (Option<(U, String)>, Self) {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&U) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/pedigree/mod.rs:83:115
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 Some((construct_id_origin_tuples_for_generation(generation), self.inf_graph.subsequent_inferences((generation_idx + 1))))
[INFO] [stderr]    |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:383:50
[INFO] [stderr]     |
[INFO] [stderr] 383 |                                  root_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:384:50
[INFO] [stderr]     |
[INFO] [stderr] 384 |                                  node_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:385:55
[INFO] [stderr]     |
[INFO] [stderr] 385 |                                  relation_renderder: &Fn(String, String) -> String,
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:399:55
[INFO] [stderr]     |
[INFO] [stderr] 399 |                                       node_renderer: &Fn(String) -> String,
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:400:60
[INFO] [stderr]     |
[INFO] [stderr] 400 |                                       relation_renderder: &Fn(String, String) -> String)
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pedigree/mod.rs:423:81
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn render_inference_tree_pedigree(&self, d_id: &String, node_renderer: &Fn(String) -> String) -> String {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/planner/mod.rs:234:58
[INFO] [stderr]     |
[INFO] [stderr] 234 |                                               criteria: &Fn(&Vec<Self>, &Bindings<T>) -> Option<X>)
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<Self>, &Bindings<T>) -> Option<X>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:8:40
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:8:64
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stderr]   |                                                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(E) -> Option<A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:20:54
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fold_while_some<A, E>(init_acc: A, iter: &mut Iterator<Item = E>, f: &Fn(A, E) -> Option<A>) -> Option<A> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:20:78
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn fold_while_some<A, E>(init_acc: A, iter: &mut Iterator<Item = E>, f: &Fn(A, E) -> Option<A>) -> Option<A> {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(A, E) -> Option<A>`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pedigree/mod.rs:286:13
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut inner_descendents = self.descendents.get_mut(&source_id).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pedigree/mod.rs:286:13
[INFO] [stderr]     |
[INFO] [stderr] 286 |         let mut inner_descendents = self.descendents.get_mut(&source_id).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.12s
[INFO] running `"docker" "inspect" "95ad1079ba83366ed981b3443a5448e8c4c393f8398991584a3fad5e147ed766"`
[INFO] running `"docker" "rm" "-f" "95ad1079ba83366ed981b3443a5448e8c4c393f8398991584a3fad5e147ed766"`
[INFO] [stdout] 95ad1079ba83366ed981b3443a5448e8c4c393f8398991584a3fad5e147ed766