[INFO] cloning repository https://github.com/luhanzhen/RuCos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luhanzhen/RuCos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluhanzhen%2FRuCos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluhanzhen%2FRuCos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5792d04ec6f1a0659c63ec0fd232e6636c47115c
[INFO] testing luhanzhen/RuCos against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluhanzhen%2FRuCos" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luhanzhen/RuCos
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/luhanzhen/RuCos
[INFO] tweaked toml for git repo https://github.com/luhanzhen/RuCos written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luhanzhen/RuCos on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luhanzhen/RuCos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e010301042d00697f3278d7f6a95365c88a07a5e48d6175634ba736921849a3
[INFO] running `Command { std: "docker" "start" "-a" "1e010301042d00697f3278d7f6a95365c88a07a5e48d6175634ba736921849a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e010301042d00697f3278d7f6a95365c88a07a5e48d6175634ba736921849a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e010301042d00697f3278d7f6a95365c88a07a5e48d6175634ba736921849a3", kill_on_drop: false }`
[INFO] [stdout] 1e010301042d00697f3278d7f6a95365c88a07a5e48d6175634ba736921849a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31a53b2c45d12497c82996f281bf91b5f2e364189b9409578ecb46efa2d8e6b5
[INFO] running `Command { std: "docker" "start" "-a" "31a53b2c45d12497c82996f281bf91b5f2e364189b9409578ecb46efa2d8e6b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling strum v0.25.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]    Compiling comfy-table v7.1.0
[INFO] [stderr]    Compiling rucos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_random.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:52
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:44
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:55
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 37 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:73
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:52
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 35 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 35 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:73
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let random = random::<usize>() % len;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _random = random::<usize>() % len;
[INFO] [stdout]    |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 47 -         let random = random::<usize>() % len;
[INFO] [stdout] 47 +         let <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS = random::<usize>() % len;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `borrow`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let borrow = solver.borrow();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/utils/bit_set.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             self.max_size = self.max_size
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_satisfied`, `get_name`, `restore_to_level`, and `get_type` are never used
[INFO] [stdout]   --> src/constraint/constraint.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub(crate) trait ConstraintTrait: Display + Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn is_satisfied(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     fn get_name(&self) -> &str;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 85 |
[INFO] [stdout] 86 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn get_type(&self) -> &XConstraintType;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `initialise`, `filter_by_variable`, `filter_by_arc`, `is_coarse_grained`, `is_fine_grained`, and `restore_to_level` are never used
[INFO] [stdout]   --> src/constraint/propagator.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub(crate) trait PropagatorTrait: Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] 21 |     fn initialise(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 22 |     fn filter_by_variable(&mut self, dummy: &Var) -> Result<usize, &Box<dyn ExceptionTrait>>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     fn filter_by_arc(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn is_coarse_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     fn is_fine_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_variable` is never used
[INFO] [stdout]   --> src/solve/heuristics/variable/heuristic_variable_trait.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait HeuristicVariableTrait: Debug + NewDecision + DeleteDecision {
[INFO] [stdout]    |           ---------------------- method in this trait
[INFO] [stdout] 23 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_value` is never used
[INFO] [stdout]   --> src/solve/heuristics/value/heuristic_value_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait HeuristicValueTrait: Debug {
[INFO] [stdout]    |           ------------------- method in this trait
[INFO] [stdout] 20 |     fn select_value(&mut self, var: &Var) -> i32;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `should_restart` and `initialize` are never used
[INFO] [stdout]   --> src/solve/restart/restart_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait RestartTrait: Debug {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 20 |     fn should_restart(&mut self, solver: &InnerSolver) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     fn initialize(&mut self, solver: &InnerSolver);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `full_backtrack` and `is_implemented` are never used
[INFO] [stdout]   --> src/solve/callbacks/delete_decision.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DeleteDecision: Debug {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn full_backtrack(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/domain_reduction.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DomainReduction: Debug {
[INFO] [stdout]    |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/new_decision.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait NewDecision: Debug {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] 21 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver);
[INFO] [stdout] 22 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/non_consistency.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait NonConsistency: Debug {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] 22 |     fn non_consistency_callback(&mut self, cons: &Constraint, level: usize, solver: &InnerSolver);
[INFO] [stdout] 23 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/bit_set.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/linked_set.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_of_multi_level.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_with_counter.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/variable/domain/domain_trait.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.64s
[INFO] running `Command { std: "docker" "inspect" "31a53b2c45d12497c82996f281bf91b5f2e364189b9409578ecb46efa2d8e6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a53b2c45d12497c82996f281bf91b5f2e364189b9409578ecb46efa2d8e6b5", kill_on_drop: false }`
[INFO] [stdout] 31a53b2c45d12497c82996f281bf91b5f2e364189b9409578ecb46efa2d8e6b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 271aab0973d41b0713eb647d864d6a3cb5b950fe9cfc002c984c3434a3050dcd
[INFO] running `Command { std: "docker" "start" "-a" "271aab0973d41b0713eb647d864d6a3cb5b950fe9cfc002c984c3434a3050dcd", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_random.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:52
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:44
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:55
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 37 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:73
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:52
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 35 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 35 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:73
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let random = random::<usize>() % len;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _random = random::<usize>() % len;
[INFO] [stdout]    |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 47 -         let random = random::<usize>() % len;
[INFO] [stdout] 47 +         let <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS = random::<usize>() % len;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `borrow`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let borrow = solver.borrow();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rucos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/utils/bit_set.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             self.max_size = self.max_size
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_satisfied`, `get_name`, `restore_to_level`, and `get_type` are never used
[INFO] [stdout]   --> src/constraint/constraint.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub(crate) trait ConstraintTrait: Display + Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn is_satisfied(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     fn get_name(&self) -> &str;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 85 |
[INFO] [stdout] 86 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn get_type(&self) -> &XConstraintType;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `initialise`, `filter_by_variable`, `filter_by_arc`, `is_coarse_grained`, `is_fine_grained`, and `restore_to_level` are never used
[INFO] [stdout]   --> src/constraint/propagator.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub(crate) trait PropagatorTrait: Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] 21 |     fn initialise(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 22 |     fn filter_by_variable(&mut self, dummy: &Var) -> Result<usize, &Box<dyn ExceptionTrait>>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     fn filter_by_arc(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn is_coarse_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     fn is_fine_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_variable` is never used
[INFO] [stdout]   --> src/solve/heuristics/variable/heuristic_variable_trait.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait HeuristicVariableTrait: Debug + NewDecision + DeleteDecision {
[INFO] [stdout]    |           ---------------------- method in this trait
[INFO] [stdout] 23 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_value` is never used
[INFO] [stdout]   --> src/solve/heuristics/value/heuristic_value_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait HeuristicValueTrait: Debug {
[INFO] [stdout]    |           ------------------- method in this trait
[INFO] [stdout] 20 |     fn select_value(&mut self, var: &Var) -> i32;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `should_restart` and `initialize` are never used
[INFO] [stdout]   --> src/solve/restart/restart_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait RestartTrait: Debug {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 20 |     fn should_restart(&mut self, solver: &InnerSolver) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     fn initialize(&mut self, solver: &InnerSolver);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `full_backtrack` and `is_implemented` are never used
[INFO] [stdout]   --> src/solve/callbacks/delete_decision.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DeleteDecision: Debug {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn full_backtrack(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/domain_reduction.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DomainReduction: Debug {
[INFO] [stdout]    |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/new_decision.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait NewDecision: Debug {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] 21 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver);
[INFO] [stdout] 22 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/non_consistency.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait NonConsistency: Debug {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] 22 |     fn non_consistency_callback(&mut self, cons: &Constraint, level: usize, solver: &InnerSolver);
[INFO] [stdout] 23 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/bit_set.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/linked_set.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_of_multi_level.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_with_counter.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/variable/domain/domain_trait.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> src/solve/heuristics/variable/variable_random.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Debug, Formatter};
[INFO] [stdout]   |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:52
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:44
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:55
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 37 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 37 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:73
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var {
[INFO] [stdout]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:41
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:29:52
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:44
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_idx`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:55
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 35 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout] 35 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:35:73
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stdout]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `random`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let random = random::<usize>() % len;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _random = random::<usize>() % len;
[INFO] [stdout]    |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stdout]    |
[INFO] [stdout] 47 -         let random = random::<usize>() % len;
[INFO] [stdout] 47 +         let <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS = random::<usize>() % len;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `borrow`
[INFO] [stdout]   --> src/solve/heuristics/variable/variable_random.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let borrow = solver.borrow();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]    --> src/utils/bit_set.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             self.max_size = self.max_size
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless assignment of field of type `usize` to itself
[INFO] [stdout]   --> src/utils/bit_set.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             self.max_size = self.max_size
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_satisfied`, `get_name`, `restore_to_level`, and `get_type` are never used
[INFO] [stdout]   --> src/constraint/constraint.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub(crate) trait ConstraintTrait: Display + Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn is_satisfied(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     fn get_name(&self) -> &str;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 85 |
[INFO] [stdout] 86 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn get_type(&self) -> &XConstraintType;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `initialise`, `filter_by_variable`, `filter_by_arc`, `is_coarse_grained`, `is_fine_grained`, and `restore_to_level` are never used
[INFO] [stdout]   --> src/constraint/propagator.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub(crate) trait PropagatorTrait: Debug {
[INFO] [stdout]    |                  --------------- methods in this trait
[INFO] [stdout] 21 |     fn initialise(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 22 |     fn filter_by_variable(&mut self, dummy: &Var) -> Result<usize, &Box<dyn ExceptionTrait>>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 23 |     fn filter_by_arc(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn is_coarse_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |     fn is_fine_grained(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_variable` is never used
[INFO] [stdout]   --> src/solve/heuristics/variable/heuristic_variable_trait.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait HeuristicVariableTrait: Debug + NewDecision + DeleteDecision {
[INFO] [stdout]    |           ---------------------- method in this trait
[INFO] [stdout] 23 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `select_value` is never used
[INFO] [stdout]   --> src/solve/heuristics/value/heuristic_value_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait HeuristicValueTrait: Debug {
[INFO] [stdout]    |           ------------------- method in this trait
[INFO] [stdout] 20 |     fn select_value(&mut self, var: &Var) -> i32;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `should_restart` and `initialize` are never used
[INFO] [stdout]   --> src/solve/restart/restart_trait.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait RestartTrait: Debug {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 20 |     fn should_restart(&mut self, solver: &InnerSolver) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     fn initialize(&mut self, solver: &InnerSolver);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `full_backtrack` and `is_implemented` are never used
[INFO] [stdout]   --> src/solve/callbacks/delete_decision.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DeleteDecision: Debug {
[INFO] [stdout]    |           -------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn full_backtrack(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 24 |
[INFO] [stdout] 25 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/domain_reduction.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait DomainReduction: Debug {
[INFO] [stdout]    |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/new_decision.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub trait NewDecision: Debug {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] 21 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver);
[INFO] [stdout] 22 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_implemented` is never used
[INFO] [stdout]   --> src/solve/callbacks/non_consistency.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait NonConsistency: Debug {
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] 22 |     fn non_consistency_callback(&mut self, cons: &Constraint, level: usize, solver: &InnerSolver);
[INFO] [stdout] 23 |     fn is_implemented(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/bit_set.rs:194:17
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn iter(&self) -> BitSetIter<'_> {
[INFO] [stdout]     |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/linked_set.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_of_multi_level.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/spare_set_with_counter.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stdout]    |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/variable/domain/domain_trait.rs:197:13
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "271aab0973d41b0713eb647d864d6a3cb5b950fe9cfc002c984c3434a3050dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271aab0973d41b0713eb647d864d6a3cb5b950fe9cfc002c984c3434a3050dcd", kill_on_drop: false }`
[INFO] [stdout] 271aab0973d41b0713eb647d864d6a3cb5b950fe9cfc002c984c3434a3050dcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2777c7a5c5f2da8ec5ad2cc00e6c183a538c5af5bfee8a515c98cfc1fcac4c90
[INFO] running `Command { std: "docker" "start" "-a" "2777c7a5c5f2da8ec5ad2cc00e6c183a538c5af5bfee8a515c98cfc1fcac4c90", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Formatter`
[INFO] [stderr]  --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fmt::{Debug, Formatter};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Formatter`
[INFO] [stderr]  --> src/solve/heuristics/variable/variable_random.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fmt::{Debug, Formatter};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:41
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stderr]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `solver`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:27:52
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stderr]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:44
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_idx`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:55
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                       +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stderr]    |
[INFO] [stderr] 37 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr] 37 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `solver`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:37:73
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `solver`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_dom_over_ddeg.rs:51:39
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var {
[INFO] [stderr]    |                                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:29:41
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stderr]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `solver`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:29:52
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver) {
[INFO] [stderr]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `var`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:35:44
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value_idx`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:35:55
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn delete_decision_callback(&mut self, var: &Var, _value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                       +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stderr]    |
[INFO] [stderr] 35 -     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr] 35 +     fn delete_decision_callback(&mut self, var: &Var, <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS: usize, solver: &InnerSolver) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `solver`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:35:73
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn delete_decision_callback(&mut self, var: &Var, value_idx: usize, solver: &InnerSolver) {
[INFO] [stderr]    |                                                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `random`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let random = random::<usize>() % len;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: if this is intentional, prefix it with an underscore
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let _random = random::<usize>() % len;
[INFO] [stderr]    |             +
[INFO] [stderr] help: you might have meant to pattern match on the similarly named constant `MAX_COLUMNS`
[INFO] [stderr]    |
[INFO] [stderr] 47 -         let random = random::<usize>() % len;
[INFO] [stderr] 47 +         let <solve::solution::Solution as std::fmt::Display>::fmt::MAX_COLUMNS = random::<usize>() % len;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `borrow`
[INFO] [stderr]   --> src/solve/heuristics/variable/variable_random.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let borrow = solver.borrow();
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_borrow`
[INFO] [stderr] 
[INFO] [stderr] warning: useless assignment of field of type `usize` to itself
[INFO] [stderr]    --> src/utils/bit_set.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             self.max_size = self.max_size
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: useless assignment of field of type `usize` to itself
[INFO] [stderr]    --> src/utils/bit_set.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |             self.max_size = self.max_size
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: useless assignment of field of type `usize` to itself
[INFO] [stderr]   --> src/utils/bit_set.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |             self.max_size = self.max_size
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `is_satisfied`, `get_name`, `restore_to_level`, and `get_type` are never used
[INFO] [stderr]   --> src/constraint/constraint.rs:82:8
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub(crate) trait ConstraintTrait: Display + Debug {
[INFO] [stderr]    |                  --------------- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 82 |     fn is_satisfied(&self) -> bool;
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 83 |
[INFO] [stderr] 84 |     fn get_name(&self) -> &str;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 85 |
[INFO] [stderr] 86 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 90 |     fn get_type(&self) -> &XConstraintType;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `initialise`, `filter_by_variable`, `filter_by_arc`, `is_coarse_grained`, `is_fine_grained`, and `restore_to_level` are never used
[INFO] [stderr]   --> src/constraint/propagator.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub(crate) trait PropagatorTrait: Debug {
[INFO] [stderr]    |                  --------------- methods in this trait
[INFO] [stderr] 21 |     fn initialise(&mut self);
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 22 |     fn filter_by_variable(&mut self, dummy: &Var) -> Result<usize, &Box<dyn ExceptionTrait>>;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 23 |     fn filter_by_arc(
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     fn is_coarse_grained(&self) -> bool;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 29 |     fn is_fine_grained(&self) -> bool;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 30 |     fn restore_to_level(&mut self, level: usize);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `select_variable` is never used
[INFO] [stderr]   --> src/solve/heuristics/variable/heuristic_variable_trait.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub trait HeuristicVariableTrait: Debug + NewDecision + DeleteDecision {
[INFO] [stderr]    |           ---------------------- method in this trait
[INFO] [stderr] 23 |     fn select_variable<'a>(&mut self, solver: &'a InnerSolver) -> &'a Var;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `select_value` is never used
[INFO] [stderr]   --> src/solve/heuristics/value/heuristic_value_trait.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub trait HeuristicValueTrait: Debug {
[INFO] [stderr]    |           ------------------- method in this trait
[INFO] [stderr] 20 |     fn select_value(&mut self, var: &Var) -> i32;
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `should_restart` and `initialize` are never used
[INFO] [stderr]   --> src/solve/restart/restart_trait.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub trait RestartTrait: Debug {
[INFO] [stderr]    |           ------------ methods in this trait
[INFO] [stderr] 20 |     fn should_restart(&mut self, solver: &InnerSolver) -> bool;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 21 |
[INFO] [stderr] 22 |     fn initialize(&mut self, solver: &InnerSolver);
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `full_backtrack` and `is_implemented` are never used
[INFO] [stderr]   --> src/solve/callbacks/delete_decision.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub trait DeleteDecision: Debug {
[INFO] [stderr]    |           -------------- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 23 |     fn full_backtrack(&mut self);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 24 |
[INFO] [stderr] 25 |     fn is_implemented(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_implemented` is never used
[INFO] [stderr]   --> src/solve/callbacks/domain_reduction.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub trait DomainReduction: Debug {
[INFO] [stderr]    |           --------------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 24 |     fn is_implemented(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_implemented` is never used
[INFO] [stderr]   --> src/solve/callbacks/new_decision.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub trait NewDecision: Debug {
[INFO] [stderr]    |           ----------- method in this trait
[INFO] [stderr] 21 |     fn new_decision_callback(&mut self, var: &Var, solver: &InnerSolver);
[INFO] [stderr] 22 |     fn is_implemented(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_implemented` is never used
[INFO] [stderr]   --> src/solve/callbacks/non_consistency.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub trait NonConsistency: Debug {
[INFO] [stderr]    |           -------------- method in this trait
[INFO] [stderr] 22 |     fn non_consistency_callback(&mut self, cons: &Constraint, level: usize, solver: &InnerSolver);
[INFO] [stderr] 23 |     fn is_implemented(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/utils/bit_set.rs:194:17
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn iter(&self) -> BitSetIter {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn iter(&self) -> BitSetIter<'_> {
[INFO] [stderr]     |                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/utils/linked_set.rs:204:17
[INFO] [stderr]     |
[INFO] [stderr] 204 |     pub fn iter(&self) -> LinkedSetIter {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 204 |     pub fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stderr]     |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/spare_set.rs:88:17
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 88 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stderr]    |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/spare_set_of_multi_level.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stderr]    |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/spare_set_with_counter.rs:83:17
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn iter(&self) -> SpareSetIter {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn iter(&self) -> SpareSetIter<'_> {
[INFO] [stderr]    |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/variable/domain/domain_trait.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn iter(&self) -> LinkedSetIter {
[INFO] [stderr]     |             ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |             |
[INFO] [stderr]     |             the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn iter(&self) -> LinkedSetIter<'_> {
[INFO] [stderr]     |                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rucos` (lib) generated 33 warnings (run `cargo fix --lib -p rucos` to apply 11 suggestions)
[INFO] [stderr] warning: `rucos` (lib test) generated 33 warnings (33 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rucos-a6f45d5b97890a54)
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/rucos_test-203820155af8dd5b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test exception::test_factory ... ok
[INFO] [stdout] test problem::problem::add ... ok
[INFO] [stdout] test utils::bit_set_test::and ... ok
[INFO] [stdout] test utils::bit_set_test::add ... ok
[INFO] [stdout] test utils::bit_set_test::delete ... ok
[INFO] [stdout] test utils::bit_set_test::equals ... ok
[INFO] [stdout] test utils::bit_set_test::contain ... ok
[INFO] [stdout] test utils::bit_set_test::new ... ok
[INFO] [stdout] test utils::bit_set_test::fmt ... ok
[INFO] [stdout] test utils::bit_set_test::size ... ok
[INFO] [stdout] test utils::bit_set_test::xor ... ok
[INFO] [stdout] test utils::linked_set_test::clone ... ok
[INFO] [stdout] test utils::linked_set_test::contain ... ok
[INFO] [stdout] test utils::linked_set_test::delete ... ok
[INFO] [stdout] test utils::linked_set_test::is_empty ... ok
[INFO] [stdout] test utils::spare_set_counter_test::clone ... ok
[INFO] [stdout] test utils::spare_set_counter_test::counter ... ok
[INFO] [stdout] test utils::spare_set_of_multi_level_test::add ... ok
[INFO] [stdout] test utils::spare_set_of_template_test::new ... ok
[INFO] [stdout] test utils::spare_set_test::clone ... ok
[INFO] [stdout] test utils::spare_set_test::contain ... ok
[INFO] [stdout] test utils::spare_set_test::delete ... ok
[INFO] [stdout] test utils::spare_set_test::get_position ... ok
[INFO] [stdout] test utils::linked_set_test::size ... ok
[INFO] [stdout] test variable::domain::domain::reduce ... ok
[INFO] [stdout] test variable::domain::domain::restore ... ok
[INFO] [stdout] test utils::spare_set_test::index ... ok
[INFO] [stdout] test utils::spare_set_test::is_empty ... ok
[INFO] [stdout] test utils::spare_set_test::reduce_to ... ok
[INFO] [stdout] test variable::domain::domain::delete ... ok
[INFO] [stdout] test variable::domain::domain::is_boolean ... ok
[INFO] [stdout] test utils::spare_set_test::size ... ok
[INFO] [stdout] test variable::domain::domain::new ... ok
[INFO] [stdout] test variable::domain::domain::max_min ... ok
[INFO] [stdout] test variable::variable::new ... ok
[INFO] [stdout] test utils::bit_set_test::or ... ok
[INFO] [stdout] test variable::domain::domain::update_bound ... ok
[INFO] [stdout] test utils::linked_set_test::add_over_max - should panic ... ok
[INFO] [stdout] test utils::linked_set_test::add ... FAILED
[INFO] [stdout] test utils::linked_set_test::reduce_to ... FAILED
[INFO] [stdout] test utils::spare_set_counter_test::add ... FAILED
[INFO] [stdout] test utils::spare_set_test::add_over_max - should panic ... ok
[INFO] [stdout] test utils::spare_set_test::add ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- utils::linked_set_test::add stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'utils::linked_set_test::add' (38) panicked at tests/utils/linked_set_test.rs:22:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "elements[ 0, 1, 2, 3, 4, ] deleted[]\n"
[INFO] [stdout]  right: "elements[ 0, 1, 2, 3, 4, ] deleted[]"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a91550e7e92 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a91550e7e92 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a91550e7e92 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5a91550e7e92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5a91550f8adf - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5a91550f8adf - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5a91550b5401 - std::io::default_write_fmt::h69967ac0ba93195f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a91550b5401 - std::io::Write::write_fmt::h8db9396209deaa1c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5a91550c1462 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5a91550c5faf - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5a91550c5e41 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5a9155024a9e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h18383b2e29377420
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x5a9155024a9e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a91550c666f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6dba6e441651a0d1
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x5a91550c666f - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5a91550c64ca - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5a91550c1599 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5a91550a98dd - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5a9155100960 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5a9155100763 - core::panicking::assert_failed_inner::h448e1d534f4c3d4b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5a915500387b - core::panicking::assert_failed::h83fb1fda2711227b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5a9154ff52e2 - rucos_test::utils::linked_set_test::add::h6dbcce40fa8412a4
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/linked_set_test.rs:22:5
[INFO] [stdout]   22:     0x5a9154ff55e7 - rucos_test::utils::linked_set_test::add::{{closure}}::h47d6eb084913a832
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/linked_set_test.rs:20:9
[INFO] [stdout]   23:     0x5a9154ff36e6 - core::ops::function::FnOnce::call_once::h42b93e47c1488081
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a915502485b - core::ops::function::FnOnce::call_once::h70887edf07a630ba
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a915502485b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5a915503a4c5 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5a915503a4c5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5a915503a4c5 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5a915503a4c5 - std::panicking::catch_unwind::hae1ec7bf94407afa
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5a915503a4c5 - std::panic::catch_unwind::h0f4ff4773d84d3cd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a915503a4c5 - test::run_test_in_process::h03fbc77ae48b3f10
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5a915503a4c5 - test::run_test::{{closure}}::h83476a9c453dc4d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5a9155010cb4 - test::run_test::{{closure}}::h515482ad1e7fe7de
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5a9155010cb4 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5a915501457a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5a915501457a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x5a915501457a - std::panicking::catch_unwind::h9e402d6a96fef41c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x5a915501457a - std::panic::catch_unwind::h9213c0c54aec70e0
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5a915501457a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a91550bc6ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2044e71c41d3958a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x5a91550bc6ff - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7932457eeaa4 - <unknown>
[INFO] [stdout]   45:     0x79324587ba34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- utils::linked_set_test::reduce_to stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'utils::linked_set_test::reduce_to' (44) panicked at tests/utils/linked_set_test.rs:50:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "elements[ 20, ] deleted[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, ]\n"
[INFO] [stdout]  right: "elements[ 20, ] deleted[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, ]"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a91550e7e92 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a91550e7e92 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a91550e7e92 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5a91550e7e92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5a91550f8adf - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5a91550f8adf - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5a91550b5401 - std::io::default_write_fmt::h69967ac0ba93195f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a91550b5401 - std::io::Write::write_fmt::h8db9396209deaa1c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5a91550c1462 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5a91550c5faf - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5a91550c5e41 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5a9155024a9e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h18383b2e29377420
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x5a9155024a9e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a91550c666f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6dba6e441651a0d1
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x5a91550c666f - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5a91550c64ca - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5a91550c1599 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5a91550a98dd - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5a9155100960 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5a9155100763 - core::panicking::assert_failed_inner::h448e1d534f4c3d4b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5a915500387b - core::panicking::assert_failed::h83fb1fda2711227b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5a9154ff6af7 - rucos_test::utils::linked_set_test::reduce_to::h5f688ebaf10e94a1
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/linked_set_test.rs:50:5
[INFO] [stdout]   22:     0x5a9154ff6cb7 - rucos_test::utils::linked_set_test::reduce_to::{{closure}}::hf23440da825fb10f
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/linked_set_test.rs:45:15
[INFO] [stdout]   23:     0x5a9154ff3416 - core::ops::function::FnOnce::call_once::h0851d8a86dd6cd65
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a915502485b - core::ops::function::FnOnce::call_once::h70887edf07a630ba
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a915502485b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5a915503a4c5 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5a915503a4c5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5a915503a4c5 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5a915503a4c5 - std::panicking::catch_unwind::hae1ec7bf94407afa
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5a915503a4c5 - std::panic::catch_unwind::h0f4ff4773d84d3cd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a915503a4c5 - test::run_test_in_process::h03fbc77ae48b3f10
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5a915503a4c5 - test::run_test::{{closure}}::h83476a9c453dc4d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5a9155010cb4 - test::run_test::{{closure}}::h515482ad1e7fe7de
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5a9155010cb4 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5a915501457a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5a915501457a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x5a915501457a - std::panicking::catch_unwind::h9e402d6a96fef41c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x5a915501457a - std::panic::catch_unwind::h9213c0c54aec70e0
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5a915501457a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a91550bc6ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2044e71c41d3958a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x5a91550bc6ff - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7932457eeaa4 - <unknown>
[INFO] [stdout]   45:     0x79324587ba34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- utils::spare_set_counter_test::add stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'utils::spare_set_counter_test::add' (46) panicked at tests/utils/spare_set_counter_test.rs:25:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "elements[counter]: 33[1], 23[1], 4[1], \n"
[INFO] [stdout]  right: "elements[counter]: 33[1], 23[1], 4[1], "
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a91550e7e92 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a91550e7e92 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a91550e7e92 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5a91550e7e92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5a91550f8adf - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5a91550f8adf - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5a91550b5401 - std::io::default_write_fmt::h69967ac0ba93195f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a91550b5401 - std::io::Write::write_fmt::h8db9396209deaa1c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5a91550c1462 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5a91550c5faf - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5a91550c5e41 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5a9155024a9e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h18383b2e29377420
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x5a9155024a9e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a91550c666f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6dba6e441651a0d1
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x5a91550c666f - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5a91550c64ca - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5a91550c1599 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5a91550a98dd - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5a9155100960 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5a9155100763 - core::panicking::assert_failed_inner::h448e1d534f4c3d4b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5a915500387b - core::panicking::assert_failed::h83fb1fda2711227b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5a9154ff7118 - rucos_test::utils::spare_set_counter_test::add::h0a6be71e4d77fa32
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/spare_set_counter_test.rs:25:5
[INFO] [stdout]   22:     0x5a9154ff7817 - rucos_test::utils::spare_set_counter_test::add::{{closure}}::h07dbf2f6979c82de
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/spare_set_counter_test.rs:19:13
[INFO] [stdout]   23:     0x5a9154ff3b66 - core::ops::function::FnOnce::call_once::hd20671946a517dc5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a915502485b - core::ops::function::FnOnce::call_once::h70887edf07a630ba
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a915502485b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5a915503a4c5 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5a915503a4c5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5a915503a4c5 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5a915503a4c5 - std::panicking::catch_unwind::hae1ec7bf94407afa
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5a915503a4c5 - std::panic::catch_unwind::h0f4ff4773d84d3cd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a915503a4c5 - test::run_test_in_process::h03fbc77ae48b3f10
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5a915503a4c5 - test::run_test::{{closure}}::h83476a9c453dc4d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5a9155010cb4 - test::run_test::{{closure}}::h515482ad1e7fe7de
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5a9155010cb4 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5a915501457a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5a915501457a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x5a915501457a - std::panicking::catch_unwind::h9e402d6a96fef41c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x5a915501457a - std::panic::catch_unwind::h9213c0c54aec70e0
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5a915501457a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a91550bc6ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2044e71c41d3958a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x5a91550bc6ff - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7932457eeaa4 - <unknown>
[INFO] [stdout]   45:     0x79324587ba34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- utils::spare_set_test::add stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'utils::spare_set_test::add' (51) panicked at tests/utils/spare_set_test.rs:25:5:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "elements: 33, 23, 4, \n"
[INFO] [stdout]  right: "elements: 33, 23, 4, "
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a91550e7e92 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a91550e7e92 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a91550e7e92 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5a91550e7e92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5a91550f8adf - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5a91550f8adf - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5a91550b5401 - std::io::default_write_fmt::h69967ac0ba93195f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5a91550b5401 - std::io::Write::write_fmt::h8db9396209deaa1c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5a91550c1462 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5a91550c5faf - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5a91550c5e41 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x5a9155024a9e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h18383b2e29377420
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x5a9155024a9e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5a91550c666f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6dba6e441651a0d1
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x5a91550c666f - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x5a91550c64ca - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x5a91550c1599 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x5a91550a98dd - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x5a9155100960 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5a9155100763 - core::panicking::assert_failed_inner::h448e1d534f4c3d4b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5a915500387b - core::panicking::assert_failed::h83fb1fda2711227b
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5a9154feece2 - rucos_test::utils::spare_set_test::add::h70f9a73e0e8aebb5
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/spare_set_test.rs:25:5
[INFO] [stdout]   22:     0x5a9154feed37 - rucos_test::utils::spare_set_test::add::{{closure}}::h552b2fb187c04a22
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/utils/spare_set_test.rs:19:9
[INFO] [stdout]   23:     0x5a9154ff38e6 - core::ops::function::FnOnce::call_once::h808f2b5e3c1430bf
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a915502485b - core::ops::function::FnOnce::call_once::h70887edf07a630ba
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a915502485b - test::__rust_begin_short_backtrace::h27763c4cbbdb8601
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5a915503a4c5 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5a915503a4c5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5a915503a4c5 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x5a915503a4c5 - std::panicking::catch_unwind::hae1ec7bf94407afa
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x5a915503a4c5 - std::panic::catch_unwind::h0f4ff4773d84d3cd
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a915503a4c5 - test::run_test_in_process::h03fbc77ae48b3f10
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5a915503a4c5 - test::run_test::{{closure}}::h83476a9c453dc4d3
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5a9155010cb4 - test::run_test::{{closure}}::h515482ad1e7fe7de
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5a9155010cb4 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5a915501457a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5a915501457a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x5a915501457a - std::panicking::catch_unwind::h9e402d6a96fef41c
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x5a915501457a - std::panic::catch_unwind::h9213c0c54aec70e0
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a915501457a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5a915501457a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a91550bc6ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2044e71c41d3958a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x5a91550bc6ff - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a
[INFO] [stdout]                                at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7932457eeaa4 - <unknown>
[INFO] [stdout]   45:     0x79324587ba34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     utils::linked_set_test::add
[INFO] [stdout]     utils::linked_set_test::reduce_to
[INFO] [stdout]     utils::spare_set_counter_test::add
[INFO] [stdout]     utils::spare_set_test::add
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 39 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test rucos_test`
[INFO] running `Command { std: "docker" "inspect" "2777c7a5c5f2da8ec5ad2cc00e6c183a538c5af5bfee8a515c98cfc1fcac4c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2777c7a5c5f2da8ec5ad2cc00e6c183a538c5af5bfee8a515c98cfc1fcac4c90", kill_on_drop: false }`
[INFO] [stdout] 2777c7a5c5f2da8ec5ad2cc00e6c183a538c5af5bfee8a515c98cfc1fcac4c90
