[INFO] fetching crate ai_kit 0.1.0...
[INFO] testing ai_kit-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate ai_kit 0.1.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate ai_kit 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ai_kit 0.1.0
[INFO] finished tweaking crates.io crate ai_kit 0.1.0
[INFO] tweaked toml for crates.io crate ai_kit 0.1.0 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65c7658fd042e405ce07c9b9b4bd3f43e8226f620c1352043016acbce261fe26
[INFO] running `Command { std: "docker" "start" "-a" "65c7658fd042e405ce07c9b9b4bd3f43e8226f620c1352043016acbce261fe26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65c7658fd042e405ce07c9b9b4bd3f43e8226f620c1352043016acbce261fe26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c7658fd042e405ce07c9b9b4bd3f43e8226f620c1352043016acbce261fe26", kill_on_drop: false }`
[INFO] [stdout] 65c7658fd042e405ce07c9b9b4bd3f43e8226f620c1352043016acbce261fe26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d286ed94cd1ffbb30393ff920efec4433142e4abc6ce01b4c576b7230b40c1ca
[INFO] running `Command { std: "docker" "start" "-a" "d286ed94cd1ffbb30393ff920efec4433142e4abc6ce01b4c576b7230b40c1ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pulldown-cmark v0.0.15
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling skeptic v0.11.0
[INFO] [stderr]    Compiling ai_kit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/constraints/numerical.rs:126:33
[INFO] [stdout]     |
[INFO] [stdout] 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] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/constraints/mod.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn float(f64) -> Self;
[INFO] [stdout]    |              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn and_then(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:93:34
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn if_partial(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         try!(write!(f, "("));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         try!(write!(f, "Equivalences: {}", self.equivalences_string()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             try!(write!(f, "{} => {}, ", key, val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                     ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:189:30
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn apply_bindings(&self, &Bindings<T>) -> Option<Self>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:195:32
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn rename_variables(&self, &HashMap<String, String>) -> Self;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &HashMap<String, String>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:209:25
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn snowflake(&self, String) -> Self;
[INFO] [stdout]     |                         ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/datum/mod.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Datum::Int(ref i_value) => Some((i_value.clone() as f64)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/infer/mod.rs:140:66
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn chain_until(&self, max_iterations: usize, satisfied: &Fn(&U) -> bool) -> (Option<(U, String)>, Self) {
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&U) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/pedigree/mod.rs:83:115
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 Some((construct_id_origin_tuples_for_generation(generation), self.inf_graph.subsequent_inferences((generation_idx + 1))))
[INFO] [stdout]    |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         /// Return unify derived from this one
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 137 |         self.pedigree.get_descendents(id)
[INFO] [stdout]     |         --------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         /// Return all unify derived in and after the specified generation
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 142 |         let mut subsequent_inferences = Vec::new();
[INFO] [stdout]     |         ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/pedigree/mod.rs:250:23
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub elements: Vec<(Vec<(String, Option<Origin>)>)>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:383:50
[INFO] [stdout]     |
[INFO] [stdout] 383 | ...                   root_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:384:50
[INFO] [stdout]     |
[INFO] [stdout] 384 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:385:55
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   relation_renderder: &Fn(String, String) -> String,
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:399:55
[INFO] [stdout]     |
[INFO] [stdout] 399 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:400:60
[INFO] [stdout]     |
[INFO] [stdout] 400 | ...                   relation_renderder: &Fn(String, String) -> String)
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:423:81
[INFO] [stdout]     |
[INFO] [stdout] 423 |     pub fn render_inference_tree_pedigree(&self, d_id: &String, node_renderer: &Fn(String) -> String) -> String {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/planner/mod.rs:234:58
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   criteria: &Fn(&Vec<Self>, &Bindings<T>) -> Option<X>)
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<Self>, &Bindings<T>) -> Option<X>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:64
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(E) -> Option<A>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:54
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:78
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(A, E) -> Option<A>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pedigree/mod.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut inner_descendents = self.descendents.get_mut(&source_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.87s
[INFO] running `Command { std: "docker" "inspect" "d286ed94cd1ffbb30393ff920efec4433142e4abc6ce01b4c576b7230b40c1ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d286ed94cd1ffbb30393ff920efec4433142e4abc6ce01b4c576b7230b40c1ca", kill_on_drop: false }`
[INFO] [stdout] d286ed94cd1ffbb30393ff920efec4433142e4abc6ce01b4c576b7230b40c1ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d02d6bbc2481249fac4e5fd7bdc3c08a0f1c9108cb2e288dc90a351a63c4d6f
[INFO] running `Command { std: "docker" "start" "-a" "4d02d6bbc2481249fac4e5fd7bdc3c08a0f1c9108cb2e288dc90a351a63c4d6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ai_kit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/constraints/numerical.rs:126:33
[INFO] [stdout]     |
[INFO] [stdout] 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] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/constraints/mod.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn float(f64) -> Self;
[INFO] [stdout]    |              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn and_then(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:93:34
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn if_partial(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         try!(write!(f, "("));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         try!(write!(f, "Equivalences: {}", self.equivalences_string()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             try!(write!(f, "{} => {}, ", key, val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                     ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:189:30
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn apply_bindings(&self, &Bindings<T>) -> Option<Self>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:195:32
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn rename_variables(&self, &HashMap<String, String>) -> Self;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &HashMap<String, String>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:209:25
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn snowflake(&self, String) -> Self;
[INFO] [stdout]     |                         ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/datum/mod.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Datum::Int(ref i_value) => Some((i_value.clone() as f64)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/infer/mod.rs:140:66
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn chain_until(&self, max_iterations: usize, satisfied: &Fn(&U) -> bool) -> (Option<(U, String)>, Self) {
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&U) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/pedigree/mod.rs:83:115
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 Some((construct_id_origin_tuples_for_generation(generation), self.inf_graph.subsequent_inferences((generation_idx + 1))))
[INFO] [stdout]    |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         /// Return unify derived from this one
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 137 |         self.pedigree.get_descendents(id)
[INFO] [stdout]     |         --------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         /// Return all unify derived in and after the specified generation
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 142 |         let mut subsequent_inferences = Vec::new();
[INFO] [stdout]     |         ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/pedigree/mod.rs:250:23
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub elements: Vec<(Vec<(String, Option<Origin>)>)>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:383:50
[INFO] [stdout]     |
[INFO] [stdout] 383 | ...                   root_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:384:50
[INFO] [stdout]     |
[INFO] [stdout] 384 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:385:55
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   relation_renderder: &Fn(String, String) -> String,
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:399:55
[INFO] [stdout]     |
[INFO] [stdout] 399 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:400:60
[INFO] [stdout]     |
[INFO] [stdout] 400 | ...                   relation_renderder: &Fn(String, String) -> String)
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:423:81
[INFO] [stdout]     |
[INFO] [stdout] 423 |     pub fn render_inference_tree_pedigree(&self, d_id: &String, node_renderer: &Fn(String) -> String) -> String {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/planner/mod.rs:234:58
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   criteria: &Fn(&Vec<Self>, &Bindings<T>) -> Option<X>)
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<Self>, &Bindings<T>) -> Option<X>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:64
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(E) -> Option<A>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:54
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:78
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(A, E) -> Option<A>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/constraints/numerical.rs:126:33
[INFO] [stdout]     |
[INFO] [stdout] 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] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/constraints/mod.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn float(f64) -> Self;
[INFO] [stdout]    |              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn and_then(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/constraints/mod.rs:93:34
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn if_partial(&self, f: &Fn(&Bindings<T>) -> Self) -> Self {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Bindings<T>) -> Self`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         try!(write!(f, "("));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         try!(write!(f, "Equivalences: {}", self.equivalences_string()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/core/mod.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             try!(write!(f, "{} => {}, ", key, val));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:21
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                     ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stdout]     |                            ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:189:30
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn apply_bindings(&self, &Bindings<T>) -> Option<Self>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:195:32
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn rename_variables(&self, &HashMap<String, String>) -> Self;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &HashMap<String, String>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]    --> src/core/mod.rs:209:25
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn snowflake(&self, String) -> Self;
[INFO] [stdout]     |                         ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/datum/mod.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Datum::Int(ref i_value) => Some((i_value.clone() as f64)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/datum/tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/infer/mod.rs:140:66
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn chain_until(&self, max_iterations: usize, satisfied: &Fn(&U) -> bool) -> (Option<(U, String)>, Self) {
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&U) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/pedigree/mod.rs:83:115
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 Some((construct_id_origin_tuples_for_generation(generation), self.inf_graph.subsequent_inferences((generation_idx + 1))))
[INFO] [stdout]    |                                                                                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         /// Return unify derived from this one
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 137 |         self.pedigree.get_descendents(id)
[INFO] [stdout]     |         --------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/pedigree/mod.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         /// Return all unify derived in and after the specified generation
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 142 |         let mut subsequent_inferences = Vec::new();
[INFO] [stdout]     |         ------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/pedigree/mod.rs:250:23
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub elements: Vec<(Vec<(String, Option<Origin>)>)>,
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:383:50
[INFO] [stdout]     |
[INFO] [stdout] 383 | ...                   root_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:384:50
[INFO] [stdout]     |
[INFO] [stdout] 384 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:385:55
[INFO] [stdout]     |
[INFO] [stdout] 385 | ...                   relation_renderder: &Fn(String, String) -> String,
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:399:55
[INFO] [stdout]     |
[INFO] [stdout] 399 | ...                   node_renderer: &Fn(String) -> String,
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:400:60
[INFO] [stdout]     |
[INFO] [stdout] 400 | ...                   relation_renderder: &Fn(String, String) -> String)
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String, String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/pedigree/mod.rs:423:81
[INFO] [stdout]     |
[INFO] [stdout] 423 |     pub fn render_inference_tree_pedigree(&self, d_id: &String, node_renderer: &Fn(String) -> String) -> String {
[INFO] [stdout]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(String) -> String`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/planner/mod.rs:234:58
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   criteria: &Fn(&Vec<Self>, &Bindings<T>) -> Option<X>)
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<Self>, &Bindings<T>) -> Option<X>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/utils.rs:8:64
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn map_while_some<A, E>(iter: &mut Iterator<Item = E>, f: &Fn(E) -> Option<A>) -> Option<Vec<A>> {
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(E) -> Option<A>`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:54
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = E>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/utils.rs:20:78
[INFO] [stdout]    |
[INFO] [stdout] 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] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(A, E) -> Option<A>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pedigree/mod.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut inner_descendents = self.descendents.get_mut(&source_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pedigree/mod.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let mut inner_descendents = self.descendents.get_mut(&source_id).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.20s
[INFO] running `Command { std: "docker" "inspect" "4d02d6bbc2481249fac4e5fd7bdc3c08a0f1c9108cb2e288dc90a351a63c4d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d02d6bbc2481249fac4e5fd7bdc3c08a0f1c9108cb2e288dc90a351a63c4d6f", kill_on_drop: false }`
[INFO] [stdout] 4d02d6bbc2481249fac4e5fd7bdc3c08a0f1c9108cb2e288dc90a351a63c4d6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f39f7039d836a53f2254063fe4e7e31a8373004f329560989f14e03c11e92f39
[INFO] running `Command { std: "docker" "start" "-a" "f39f7039d836a53f2254063fe4e7e31a8373004f329560989f14e03c11e92f39", kill_on_drop: false }`
[INFO] [stderr]    Compiling ai_kit v0.1.0 (/opt/rustwide/workdir)
[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]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/constraints/mod.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn float(f64) -> Self;
[INFO] [stderr]    |              ^^^ help: try naming the parameter or explicitly ignoring it: `_: f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core/mod.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(write!(f, "("));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core/mod.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(write!(f, "Equivalences: {}", self.equivalences_string()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/core/mod.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |             try!(write!(f, "{} => {}, ", key, val));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/core/mod.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stderr]     |                     ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/core/mod.rs:186:28
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn unify(&self, &Self, &Bindings<T>) -> Option<Bindings<T>>;
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/core/mod.rs:189:30
[INFO] [stderr]     |
[INFO] [stderr] 189 |     fn apply_bindings(&self, &Bindings<T>) -> Option<Self>;
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Bindings<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/core/mod.rs:195:32
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn rename_variables(&self, &HashMap<String, String>) -> Self;
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &HashMap<String, String>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]    --> src/core/mod.rs:209:25
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn snowflake(&self, String) -> Self;
[INFO] [stderr]     |                         ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: 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]     = help: use `//` for a plain comment
[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]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/pedigree/mod.rs:250:23
[INFO] [stderr]     |
[INFO] [stderr] 250 |     pub elements: Vec<(Vec<(String, Option<Origin>)>)>,
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: 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: `ai_kit` (lib) generated 30 warnings
[INFO] [stderr] warning: `ai_kit` (lib test) generated 31 warnings (30 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.90s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ai_kit-a718875052f6cbdb)
[INFO] [stdout] 
[INFO] [stdout] running 59 tests
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_sum_constraint_forward ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_eq_returns_success ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_eq_returns_partial_if_second_variable_is_undefined ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_neq_returns_success ... ok
[INFO] [stdout] test datum::tests::test_unify_fails_when_no_match ... ok
[INFO] [stdout] test core::tests::bindings_tests::test_setting_variable_as_value_adds_to_equivalence ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_eq_returns_conflict ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_neq_returns_partial_if_first_variable_is_undefined ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_eq_returns_partial_if_first_variable_is_undefined ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_when_variables_match ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_neq_returns_conflict ... ok
[INFO] [stdout] test datum::tests::test_unify_fails_when_bindings_conflict ... ok
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_sum_constraint_backward ... ok
[INFO] [stdout] test constraints::tests::solver_tests::test_solve_multi_constraint_terminates_when_unsolvable ... ok
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_greater_than_constraint_succeeds ... ok
[INFO] [stdout] test constraints::tests::solver_tests::test_solve_multi_constraint ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_with_matching_vectors ... ok
[INFO] [stdout] test core::tests::bindings_tests::test_merge ... ok
[INFO] [stdout] test constraints::tests::symbolic_tests::test_neq_returns_partial_if_second_variable_is_undefined ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_when_bindings_in_other_match ... ok
[INFO] [stdout] test core::tests::bindings_tests::test_setting_variable_sets_value_for_all_equivalents ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_all_init ... ok
[INFO] [stdout] test infer::tests::test_forward_chain ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_no_exhausted_goals ... ok
[INFO] [stdout] test pedigree::tests::test_backward_iterator ... ok
[INFO] [stdout] test planner::tests::create_subgoals_tests::test_create_subgoals ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_exhausted_goal ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_all_exhausted ... ok
[INFO] [stdout] test infer::tests::test_chain_until_match ... ok
[INFO] [stdout] test infer::tests::test_chain_until_match_updates_pedigree ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_when_bindings_in_self_match ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_when_match_with_new_variable_in_other ... ok
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_mul_constraint_forward ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_no_init ... ok
[INFO] [stdout] test planner::tests::first_goal_to_increment_tests::test_first_goal_to_increment_with_partial_init ... ok
[INFO] [stdout] test planner::tests::misc_tests::test_find_reused_datum_returns_nothing_when_no_reuse ... ok
[INFO] [stdout] test planner::tests::misc_tests::test_find_reused_datum_returns_reused_datum ... ok
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_greater_than_constraint_fails ... ok
[INFO] [stdout] test datum::tests::test_unify_passes_when_match_with_new_variable_in_self ... ok
[INFO] [stdout] test datum::tests::test_unify_with_nesting ... ok
[INFO] [stdout] test planner::tests::plan_iterator_tests::test_plan_for_nlp ... ok
[INFO] [stdout] test constraints::tests::numerical_tests::test_solve_mul_constraint_backward ... ok
[INFO] [stdout] test pedigree::tests::test_extract_inference_graph ... ok
[INFO] [stdout] test rule::tests::test_snowflake ... ok
[INFO] [stdout] test rule::tests::test_rule_reverse_application ... ok
[INFO] [stdout] test rule::tests::test_rule_application ... ok
[INFO] [stdout] test planner::tests::satisfaction_tests::test_goal_satisfied_returns_false_for_non_satisfying_datum ... ok
[INFO] [stdout] test rule::tests::test_rule_application_with_no_antecedents ... ok
[INFO] [stdout] test planner::tests::satisfaction_tests::test_goal_satisfied_returns_false_for_incomplete_nested_plan ... ok
[INFO] [stdout] test planner::tests::satisfaction_tests::test_goal_satisfied_returns_true_for_shallowly_nested_plan ... ok
[INFO] [stdout] test planner::tests::solve_tests::test_solve_conjunction ... ok
[INFO] [stdout] test planner::tests::solve_tests::test_solve_conjunction_respects_bindings_at_creation ... ok
[INFO] [stdout] test planner::tests::satisfaction_tests::test_goal_satisfied_returns_true_for_satisfying_datum ... ok
[INFO] [stdout] test planner::tests::solve_tests::test_solve_conjunction_with_criteria ... ok
[INFO] [stdout] test infer::tests::test_chain_forward_with_negative_goals ... ok
[INFO] [stdout] test planner::tests::increment_tests::test_initial_increment_of_root_goal ... ok
[INFO] [stdout] test planner::tests::satisfaction_tests::test_goal_satisfied_returns_true_for_deeply_nested_plan ... ok
[INFO] [stdout] test planner::tests::plan_iterator_tests::test_plan_iterator ... ok
[INFO] [stdout] test planner::tests::plan_iterator_tests::test_plan_with_goal_constraint ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 59 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/skeptic.rs (/opt/rustwide/target/debug/deps/skeptic-823d8b0cfd94aa0c)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test readme_0 ... FAILED
[INFO] [stdout] test readme_1 ... FAILED
[INFO] [stdout] test readme_2 ... FAILED
[INFO] [stdout] test readme_3 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- readme_0 stdout ----
[INFO] [stdout] thread 'readme_0' panicked at 'failed to read dependencies: Error(Toml(Error { inner: ErrorInner { kind: Custom, line: None, col: 0, message: "missing field `root`", key: [] } }), State { next_error: None })', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:64
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5632cf4e24d0 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5632cf4e24d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5632cf50733c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x5632cf4dee55 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x5632cf4e4a7b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5632cf4e4a7b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5632cf4e4a7b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5632cf4e458c - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5632cf4e5144 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5632cf4e4c27 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5632cf4e29ac - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5632cf4e4b89 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5632cf3db4c1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5632cf3db5b3 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stdout]   16:     0x5632cf41fd1e - core::result::Result<T,E>::expect::hfb542fca24d22616
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1241:23
[INFO] [stdout]   17:     0x5632cf418320 - skeptic::rt::compile_test_case::hf2593bcd3e9b0196
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:20
[INFO] [stdout]   18:     0x5632cf417c91 - skeptic::rt::run_test::h1ff0cba1aa3e7952
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:576:9
[INFO] [stdout]   19:     0x5632cf3dc2cb - skeptic::readme_0::h0fe9719482fd21ca
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:27:5
[INFO] [stdout]   20:     0x5632cf3dc1ca - skeptic::readme_0::{{closure}}::h4159d056dc74c0f9
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:2:9
[INFO] [stdout]   21:     0x5632cf3dbd6e - core::ops::function::FnOnce::call_once::h119b3650ab798e3d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5632cf40f9c3 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5632cf40f9c3 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   24:     0x5632cf40e478 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   25:     0x5632cf40e478 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   26:     0x5632cf40e478 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5632cf40e478 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5632cf40e478 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   29:     0x5632cf40e478 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   30:     0x5632cf40e478 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   31:     0x5632cf3dcc0d - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   32:     0x5632cf3dcc0d - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   34:     0x5632cf3e13d8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   35:     0x5632cf3e13d8 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5632cf3e13d8 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5632cf3e13d8 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   38:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   39:     0x5632cf3e13d8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   41:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   42:     0x5632cf4eabe7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   43:     0x7f6cd97bc609 - start_thread
[INFO] [stdout]   44:     0x7f6cd958e293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- readme_1 stdout ----
[INFO] [stdout] thread 'readme_1' panicked at 'failed to read dependencies: Error(Toml(Error { inner: ErrorInner { kind: Custom, line: None, col: 0, message: "missing field `root`", key: [] } }), State { next_error: None })', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:64
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5632cf4e24d0 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5632cf4e24d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5632cf50733c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x5632cf4dee55 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x5632cf4e4a7b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5632cf4e4a7b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5632cf4e4a7b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5632cf4e458c - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5632cf4e5144 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5632cf4e4c27 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5632cf4e29ac - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5632cf4e4b89 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5632cf3db4c1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5632cf3db5b3 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stdout]   16:     0x5632cf41fd1e - core::result::Result<T,E>::expect::hfb542fca24d22616
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1241:23
[INFO] [stdout]   17:     0x5632cf418320 - skeptic::rt::compile_test_case::hf2593bcd3e9b0196
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:20
[INFO] [stdout]   18:     0x5632cf417c91 - skeptic::rt::run_test::h1ff0cba1aa3e7952
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:576:9
[INFO] [stdout]   19:     0x5632cf3dc42b - skeptic::readme_1::h2e64021f59a972e9
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:58:5
[INFO] [stdout]   20:     0x5632cf3dc32a - skeptic::readme_1::{{closure}}::h166a501e909b5ee9
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:30:9
[INFO] [stdout]   21:     0x5632cf3dbe4e - core::ops::function::FnOnce::call_once::hc12441964ff89589
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5632cf40f9c3 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5632cf40f9c3 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   24:     0x5632cf40e478 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   25:     0x5632cf40e478 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   26:     0x5632cf40e478 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5632cf40e478 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5632cf40e478 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   29:     0x5632cf40e478 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   30:     0x5632cf40e478 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   31:     0x5632cf3dcc0d - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   32:     0x5632cf3dcc0d - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   34:     0x5632cf3e13d8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   35:     0x5632cf3e13d8 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5632cf3e13d8 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5632cf3e13d8 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   38:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   39:     0x5632cf3e13d8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   41:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   42:     0x5632cf4eabe7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   43:     0x7f6cd97bc609 - start_thread
[INFO] [stdout]   44:     0x7f6cd958e293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- readme_2 stdout ----
[INFO] [stdout] thread 'readme_2' panicked at 'failed to read dependencies: Error(Toml(Error { inner: ErrorInner { kind: Custom, line: None, col: 0, message: "missing field `root`", key: [] } }), State { next_error: None })', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:64
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5632cf4e24d0 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5632cf4e24d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5632cf50733c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x5632cf4dee55 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x5632cf4e4a7b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5632cf4e4a7b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5632cf4e4a7b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5632cf4e458c - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5632cf4e5144 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5632cf4e4c27 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5632cf4e29ac - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5632cf4e4b89 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5632cf3db4c1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5632cf3db5b3 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stdout]   16:     0x5632cf41fd1e - core::result::Result<T,E>::expect::hfb542fca24d22616
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1241:23
[INFO] [stdout]   17:     0x5632cf418320 - skeptic::rt::compile_test_case::hf2593bcd3e9b0196
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:20
[INFO] [stdout]   18:     0x5632cf417c91 - skeptic::rt::run_test::h1ff0cba1aa3e7952
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:576:9
[INFO] [stdout]   19:     0x5632cf3dc58b - skeptic::readme_2::ha3ca4e8aba60a489
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:120:5
[INFO] [stdout]   20:     0x5632cf3dc48a - skeptic::readme_2::{{closure}}::h8f12a2f999e5fa58
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:61:9
[INFO] [stdout]   21:     0x5632cf3dbe8e - core::ops::function::FnOnce::call_once::hcd0d7fa853445ded
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5632cf40f9c3 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5632cf40f9c3 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   24:     0x5632cf40e478 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   25:     0x5632cf40e478 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   26:     0x5632cf40e478 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5632cf40e478 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5632cf40e478 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   29:     0x5632cf40e478 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   30:     0x5632cf40e478 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   31:     0x5632cf3dcc0d - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   32:     0x5632cf3dcc0d - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   34:     0x5632cf3e13d8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   35:     0x5632cf3e13d8 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5632cf3e13d8 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5632cf3e13d8 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   38:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   39:     0x5632cf3e13d8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   41:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   42:     0x5632cf4eabe7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   43:     0x7f6cd97bc609 - start_thread
[INFO] [stdout]   44:     0x7f6cd958e293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- readme_3 stdout ----
[INFO] [stdout] thread 'readme_3' panicked at 'failed to read dependencies: Error(Toml(Error { inner: ErrorInner { kind: Custom, line: None, col: 0, message: "missing field `root`", key: [] } }), State { next_error: None })', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:64
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5632cf4e24d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5632cf4e24d0 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5632cf4e24d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5632cf50733c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x5632cf4dee55 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x5632cf4e4a7b - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5632cf4e4a7b - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5632cf4e4a7b - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5632cf4e458c - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5632cf4e5144 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5632cf4e4c27 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5632cf4e29ac - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5632cf4e4b89 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5632cf3db4c1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5632cf3db5b3 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stdout]   16:     0x5632cf41fd1e - core::result::Result<T,E>::expect::hfb542fca24d22616
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1241:23
[INFO] [stdout]   17:     0x5632cf418320 - skeptic::rt::compile_test_case::hf2593bcd3e9b0196
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:611:20
[INFO] [stdout]   18:     0x5632cf417c91 - skeptic::rt::run_test::h1ff0cba1aa3e7952
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/skeptic-0.11.0/lib.rs:576:9
[INFO] [stdout]   19:     0x5632cf3dc6eb - skeptic::readme_3::ha53a021df070eda6
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:215:5
[INFO] [stdout]   20:     0x5632cf3dc5ea - skeptic::readme_3::{{closure}}::hcfaa86806d77d286
[INFO] [stdout]                                at /opt/rustwide/target/debug/build/ai_kit-20d8acf6f8b03c95/out/skeptic-tests.rs:123:9
[INFO] [stdout]   21:     0x5632cf3dbdfe - core::ops::function::FnOnce::call_once::h5c6878a7799e2ac3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5632cf40f9c3 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5632cf40f9c3 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   24:     0x5632cf40e478 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   25:     0x5632cf40e478 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   26:     0x5632cf40e478 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5632cf40e478 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5632cf40e478 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   29:     0x5632cf40e478 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   30:     0x5632cf40e478 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   31:     0x5632cf3dcc0d - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   32:     0x5632cf3dcc0d - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   34:     0x5632cf3e13d8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   35:     0x5632cf3e13d8 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5632cf3e13d8 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5632cf3e13d8 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   38:     0x5632cf3e13d8 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   39:     0x5632cf3e13d8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   41:     0x5632cf4eabe7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   42:     0x5632cf4eabe7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   43:     0x7f6cd97bc609 - start_thread
[INFO] [stdout]   44:     0x7f6cd958e293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     readme_0
[INFO] [stdout]     readme_1
[INFO] [stdout]     readme_2
[INFO] [stdout]     readme_3
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--test skeptic'
[INFO] running `Command { std: "docker" "inspect" "f39f7039d836a53f2254063fe4e7e31a8373004f329560989f14e03c11e92f39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f39f7039d836a53f2254063fe4e7e31a8373004f329560989f14e03c11e92f39", kill_on_drop: false }`
[INFO] [stdout] f39f7039d836a53f2254063fe4e7e31a8373004f329560989f14e03c11e92f39
