Nov 29 22:05:46.662 INFO checking mohas556/cassowaryr against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 22:05:46.662 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 22:05:46.972 INFO [stdout] 8afe11caf3d69c5a7702e9d01f2a795cc3c30f38473ef0e629585ec6cb7a5685
Nov 29 22:05:46.976 INFO running `"docker" "start" "-a" "8afe11caf3d69c5a7702e9d01f2a795cc3c30f38473ef0e629585ec6cb7a5685"`
Nov 29 22:05:47.794 INFO [stderr] usermod: no changes
Nov 29 22:05:47.834 INFO [stderr]     Checking cassowaryr v0.1.0 (/source)
Nov 29 22:05:48.085 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 29 22:05:48.085 INFO [stderr]     --> src/lib.rs:2055:36
Nov 29 22:05:48.085 INFO [stderr]      |
Nov 29 22:05:48.086 INFO [stderr] 2055 |                                 if (val > 0f64 && var.pivotable()) {
Nov 29 22:05:48.086 INFO [stderr]      |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 29 22:05:48.086 INFO [stderr]      |
Nov 29 22:05:48.086 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Nov 29 22:05:48.086 INFO [stderr] 
Nov 29 22:05:48.204 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 29 22:05:48.204 INFO [stderr]     --> src/lib.rs:2055:36
Nov 29 22:05:48.204 INFO [stderr]      |
Nov 29 22:05:48.204 INFO [stderr] 2055 |                                 if (val > 0f64 && var.pivotable()) {
Nov 29 22:05:48.204 INFO [stderr]      |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 29 22:05:48.204 INFO [stderr]      |
Nov 29 22:05:48.204 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Nov 29 22:05:48.204 INFO [stderr] 
Nov 29 22:05:48.372 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 29 22:05:48.372 INFO [stderr]     --> src/lib.rs:1838:25
Nov 29 22:05:48.372 INFO [stderr]      |
Nov 29 22:05:48.372 INFO [stderr] 1838 |                         prev_edit_constant =  some_val;
Nov 29 22:05:48.372 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:48.372 INFO [stderr]      |
Nov 29 22:05:48.372 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 29 22:05:48.372 INFO [stderr] 
Nov 29 22:05:48.372 INFO [stderr] warning: value assigned to `r` is never read
Nov 29 22:05:48.372 INFO [stderr]     --> src/lib.rs:2006:25
Nov 29 22:05:48.372 INFO [stderr]      |
Nov 29 22:05:48.372 INFO [stderr] 2006 |                 let mut r: f64 = 0f64;
Nov 29 22:05:48.372 INFO [stderr]      |                         ^
Nov 29 22:05:48.372 INFO [stderr] 
Nov 29 22:05:48.552 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 29 22:05:48.552 INFO [stderr]     --> src/lib.rs:1838:25
Nov 29 22:05:48.552 INFO [stderr]      |
Nov 29 22:05:48.552 INFO [stderr] 1838 |                         prev_edit_constant =  some_val;
Nov 29 22:05:48.552 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:48.552 INFO [stderr]      |
Nov 29 22:05:48.552 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 29 22:05:48.552 INFO [stderr] 
Nov 29 22:05:48.552 INFO [stderr] warning: value assigned to `r` is never read
Nov 29 22:05:48.552 INFO [stderr]     --> src/lib.rs:2006:25
Nov 29 22:05:48.552 INFO [stderr]      |
Nov 29 22:05:48.552 INFO [stderr] 2006 |                 let mut r: f64 = 0f64;
Nov 29 22:05:48.552 INFO [stderr]      |                         ^
Nov 29 22:05:48.552 INFO [stderr] 
Nov 29 22:05:49.128 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 29 22:05:49.128 INFO [stderr]     --> src/main.rs:1830:7
Nov 29 22:05:49.128 INFO [stderr]      |
Nov 29 22:05:49.128 INFO [stderr] 1830 |                         prev_edit_constant =  some_val;
Nov 29 22:05:49.128 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.128 INFO [stderr]      |
Nov 29 22:05:49.128 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 29 22:05:49.128 INFO [stderr] 
Nov 29 22:05:49.128 INFO [stderr] warning: value assigned to `r` is never read
Nov 29 22:05:49.128 INFO [stderr]     --> src/main.rs:1997:25
Nov 29 22:05:49.128 INFO [stderr]      |
Nov 29 22:05:49.128 INFO [stderr] 1997 |                 let mut r: f64 = 0f64;
Nov 29 22:05:49.128 INFO [stderr]      |                         ^
Nov 29 22:05:49.128 INFO [stderr] 
Nov 29 22:05:49.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.164 INFO [stderr]    --> src/main.rs:863:14
Nov 29 22:05:49.164 INFO [stderr]     |
Nov 29 22:05:49.164 INFO [stderr] 863 |             let mut expr = Rc::new(Expression::new_blank());
Nov 29 22:05:49.164 INFO [stderr]     |                 ----^^^^
Nov 29 22:05:49.164 INFO [stderr]     |                 |
Nov 29 22:05:49.164 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.164 INFO [stderr]     |
Nov 29 22:05:49.164 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 22:05:49.164 INFO [stderr] 
Nov 29 22:05:49.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.164 INFO [stderr]    --> src/main.rs:915:21
Nov 29 22:05:49.164 INFO [stderr]     |
Nov 29 22:05:49.164 INFO [stderr] 915 |                 let mut expr = Rc::new(Expression::new_single_variable(var_two));
Nov 29 22:05:49.164 INFO [stderr]     |                     ----^^^^
Nov 29 22:05:49.164 INFO [stderr]     |                     |
Nov 29 22:05:49.164 INFO [stderr]     |                     help: remove this `mut`
Nov 29 22:05:49.164 INFO [stderr] 
Nov 29 22:05:49.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.164 INFO [stderr]    --> src/main.rs:937:17
Nov 29 22:05:49.164 INFO [stderr]     |
Nov 29 22:05:49.164 INFO [stderr] 937 |             let mut cexpr: Rc<Expression> = expr.clone();
Nov 29 22:05:49.164 INFO [stderr]     |                 ----^^^^^
Nov 29 22:05:49.164 INFO [stderr]     |                 |
Nov 29 22:05:49.164 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.164 INFO [stderr] 
Nov 29 22:05:49.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.164 INFO [stderr]    --> src/main.rs:966:17
Nov 29 22:05:49.164 INFO [stderr]     |
Nov 29 22:05:49.164 INFO [stderr] 966 |             let mut expr = expr_two.clone();
Nov 29 22:05:49.164 INFO [stderr]     |                 ----^^^^
Nov 29 22:05:49.164 INFO [stderr]     |                 |
Nov 29 22:05:49.164 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.164 INFO [stderr] 
Nov 29 22:05:49.164 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.164 INFO [stderr]     --> src/main.rs:1146:17
Nov 29 22:05:49.164 INFO [stderr]      |
Nov 29 22:05:49.164 INFO [stderr] 1146 |             let mut expr = Rc::new(Expression::new_blank());
Nov 29 22:05:49.164 INFO [stderr]      |                 ----^^^^
Nov 29 22:05:49.164 INFO [stderr]      |                 |
Nov 29 22:05:49.164 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.164 INFO [stderr] 
Nov 29 22:05:49.176 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.176 INFO [stderr]     --> src/main.rs:1268:17
Nov 29 22:05:49.176 INFO [stderr]      |
Nov 29 22:05:49.176 INFO [stderr] 1268 |             let mut prev_edit_constant = 0f64;
Nov 29 22:05:49.176 INFO [stderr]      |                 ----^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.176 INFO [stderr]      |                 |
Nov 29 22:05:49.176 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.176 INFO [stderr] 
Nov 29 22:05:49.176 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.176 INFO [stderr]     --> src/main.rs:1270:17
Nov 29 22:05:49.176 INFO [stderr]      |
Nov 29 22:05:49.176 INFO [stderr] 1270 |             let mut expr = self.new_expression(constraint,
Nov 29 22:05:49.176 INFO [stderr]      |                 ----^^^^
Nov 29 22:05:49.176 INFO [stderr]      |                 |
Nov 29 22:05:49.176 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.176 INFO [stderr] 
Nov 29 22:05:49.176 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.176 INFO [stderr]     --> src/main.rs:1389:22
Nov 29 22:05:49.176 INFO [stderr]      |
Nov 29 22:05:49.176 INFO [stderr] 1389 |                 Some(mut expr) => {
Nov 29 22:05:49.176 INFO [stderr]      |                      ----^^^^
Nov 29 22:05:49.176 INFO [stderr]      |                      |
Nov 29 22:05:49.176 INFO [stderr]      |                      help: remove this `mut`
Nov 29 22:05:49.176 INFO [stderr] 
Nov 29 22:05:49.192 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.192 INFO [stderr]     --> src/main.rs:1429:17
Nov 29 22:05:49.192 INFO [stderr]      |
Nov 29 22:05:49.192 INFO [stderr] 1429 |             let mut obj_row: Rc<Expression> = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.192 INFO [stderr]      |                 ----^^^^^^^
Nov 29 22:05:49.192 INFO [stderr]      |                 |
Nov 29 22:05:49.192 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.192 INFO [stderr] 
Nov 29 22:05:49.192 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.192 INFO [stderr]     --> src/main.rs:1432:17
Nov 29 22:05:49.192 INFO [stderr]      |
Nov 29 22:05:49.192 INFO [stderr] 1432 |             let mut error_option = self.error_vars.borrow_mut().get(constraint).map(|x| x.clone());
Nov 29 22:05:49.192 INFO [stderr]      |                 ----^^^^^^^^^^^^
Nov 29 22:05:49.192 INFO [stderr]      |                 |
Nov 29 22:05:49.192 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.192 INFO [stderr] 
Nov 29 22:05:49.203 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.203 INFO [stderr]     --> src/main.rs:1760:25
Nov 29 22:05:49.203 INFO [stderr]      |
Nov 29 22:05:49.203 INFO [stderr] 1760 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.203 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.203 INFO [stderr]      |                         |
Nov 29 22:05:49.203 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.203 INFO [stderr] 
Nov 29 22:05:49.203 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.203 INFO [stderr]     --> src/main.rs:1800:25
Nov 29 22:05:49.203 INFO [stderr]      |
Nov 29 22:05:49.203 INFO [stderr] 1800 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.203 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.203 INFO [stderr]      |                         |
Nov 29 22:05:49.203 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.203 INFO [stderr] 
Nov 29 22:05:49.203 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.203 INFO [stderr]     --> src/main.rs:1816:25
Nov 29 22:05:49.203 INFO [stderr]      |
Nov 29 22:05:49.203 INFO [stderr] 1816 |                     let mut some_val = constraint_expr.mref.borrow().clone().constant.clone();
Nov 29 22:05:49.203 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.203 INFO [stderr]      |                         |
Nov 29 22:05:49.203 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.203 INFO [stderr] 
Nov 29 22:05:49.214 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.214 INFO [stderr]     --> src/main.rs:2038:17
Nov 29 22:05:49.214 INFO [stderr]      |
Nov 29 22:05:49.214 INFO [stderr] 2038 |             let mut len = self.infeasible_rows.borrow().len();
Nov 29 22:05:49.214 INFO [stderr]      |                 ----^^^
Nov 29 22:05:49.214 INFO [stderr]      |                 |
Nov 29 22:05:49.214 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.214 INFO [stderr] 
Nov 29 22:05:49.218 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.218 INFO [stderr]     --> src/main.rs:2184:14
Nov 29 22:05:49.218 INFO [stderr]      |
Nov 29 22:05:49.218 INFO [stderr] 2184 |             let mut m = self.columns.borrow().clone();
Nov 29 22:05:49.218 INFO [stderr]      |                 ----^
Nov 29 22:05:49.218 INFO [stderr]      |                 |
Nov 29 22:05:49.218 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.218 INFO [stderr] 
Nov 29 22:05:49.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.240 INFO [stderr]     --> src/main.rs:1216:10
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr] 1216 |             self.add_constraint(&c);
Nov 29 22:05:49.240 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr]      = note: #[warn(unused_must_use)] on by default
Nov 29 22:05:49.240 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.240 INFO [stderr] 
Nov 29 22:05:49.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.240 INFO [stderr]     --> src/main.rs:1280:21
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr] 1280 |                     self.add_with_artificial(&expr);
Nov 29 22:05:49.240 INFO [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.240 INFO [stderr] 
Nov 29 22:05:49.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.240 INFO [stderr]     --> src/main.rs:1307:17
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr] 1307 |                 self.optimise(&obj);
Nov 29 22:05:49.240 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.240 INFO [stderr]      |
Nov 29 22:05:49.240 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.240 INFO [stderr] 
Nov 29 22:05:49.241 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.241 INFO [stderr]     --> src/main.rs:1373:13
Nov 29 22:05:49.241 INFO [stderr]      |
Nov 29 22:05:49.241 INFO [stderr] 1373 |             self.optimise(&obj_var);
Nov 29 22:05:49.241 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.241 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.243 INFO [stderr] 
Nov 29 22:05:49.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.243 INFO [stderr]     --> src/main.rs:1401:29
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr] 1401 |                             self.pivot(&entry_var, &slack_var);
Nov 29 22:05:49.243 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.243 INFO [stderr] 
Nov 29 22:05:49.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.243 INFO [stderr]     --> src/main.rs:1514:25
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr] 1514 |                         self.pivot(&marker, &exit_var.unwrap());
Nov 29 22:05:49.243 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.243 INFO [stderr] 
Nov 29 22:05:49.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.243 INFO [stderr]     --> src/main.rs:1574:17
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr] 1574 |                 self.optimise(&obj);
Nov 29 22:05:49.243 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.243 INFO [stderr] 
Nov 29 22:05:49.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.243 INFO [stderr]     --> src/main.rs:1691:13
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr] 1691 |             self.remove_constraint(constraint);
Nov 29 22:05:49.243 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.243 INFO [stderr] 
Nov 29 22:05:49.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.243 INFO [stderr]     --> src/main.rs:1702:17
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.243 INFO [stderr] 1702 |                 self.add_edit_var(var, Strength::REQUIRED);
Nov 29 22:05:49.243 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.243 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.244 INFO [stderr]     --> src/main.rs:1703:17
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr] 1703 |                 self.begin_edit();
Nov 29 22:05:49.244 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.244 INFO [stderr]     --> src/main.rs:1706:25
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr] 1706 |                         self.end_edit();
Nov 29 22:05:49.244 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.244 INFO [stderr]     --> src/main.rs:1854:13
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr] 1854 |             self.dual_optimise();
Nov 29 22:05:49.244 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.244 INFO [stderr]     --> src/main.rs:2026:17
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr] 2026 |                 self.pivot(&entry_var.clone().unwrap(), &exit_var.clone().unwrap());
Nov 29 22:05:49.244 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.244 INFO [stderr]     --> src/main.rs:2069:29
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr] 2069 |                             self.pivot(&entry_var.clone().unwrap(), &exit_var);
Nov 29 22:05:49.244 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.244 INFO [stderr]      |
Nov 29 22:05:49.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.244 INFO [stderr] 
Nov 29 22:05:49.282 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 29 22:05:49.283 INFO [stderr]     --> src/main.rs:1830:7
Nov 29 22:05:49.283 INFO [stderr]      |
Nov 29 22:05:49.283 INFO [stderr] 1830 |                         prev_edit_constant =  some_val;
Nov 29 22:05:49.283 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.283 INFO [stderr]      |
Nov 29 22:05:49.283 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 29 22:05:49.283 INFO [stderr] 
Nov 29 22:05:49.283 INFO [stderr] warning: value assigned to `r` is never read
Nov 29 22:05:49.283 INFO [stderr]     --> src/main.rs:1997:25
Nov 29 22:05:49.283 INFO [stderr]      |
Nov 29 22:05:49.283 INFO [stderr] 1997 |                 let mut r: f64 = 0f64;
Nov 29 22:05:49.283 INFO [stderr]      |                         ^
Nov 29 22:05:49.283 INFO [stderr] 
Nov 29 22:05:49.320 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.320 INFO [stderr]    --> src/main.rs:863:14
Nov 29 22:05:49.320 INFO [stderr]     |
Nov 29 22:05:49.320 INFO [stderr] 863 |             let mut expr = Rc::new(Expression::new_blank());
Nov 29 22:05:49.320 INFO [stderr]     |                 ----^^^^
Nov 29 22:05:49.320 INFO [stderr]     |                 |
Nov 29 22:05:49.320 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.320 INFO [stderr]     |
Nov 29 22:05:49.320 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 22:05:49.320 INFO [stderr] 
Nov 29 22:05:49.321 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.321 INFO [stderr]    --> src/main.rs:915:21
Nov 29 22:05:49.321 INFO [stderr]     |
Nov 29 22:05:49.321 INFO [stderr] 915 |                 let mut expr = Rc::new(Expression::new_single_variable(var_two));
Nov 29 22:05:49.321 INFO [stderr]     |                     ----^^^^
Nov 29 22:05:49.321 INFO [stderr]     |                     |
Nov 29 22:05:49.321 INFO [stderr]     |                     help: remove this `mut`
Nov 29 22:05:49.321 INFO [stderr] 
Nov 29 22:05:49.321 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.321 INFO [stderr]    --> src/main.rs:937:17
Nov 29 22:05:49.321 INFO [stderr]     |
Nov 29 22:05:49.321 INFO [stderr] 937 |             let mut cexpr: Rc<Expression> = expr.clone();
Nov 29 22:05:49.321 INFO [stderr]     |                 ----^^^^^
Nov 29 22:05:49.321 INFO [stderr]     |                 |
Nov 29 22:05:49.321 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.321 INFO [stderr] 
Nov 29 22:05:49.322 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.322 INFO [stderr]    --> src/main.rs:966:17
Nov 29 22:05:49.322 INFO [stderr]     |
Nov 29 22:05:49.322 INFO [stderr] 966 |             let mut expr = expr_two.clone();
Nov 29 22:05:49.322 INFO [stderr]     |                 ----^^^^
Nov 29 22:05:49.322 INFO [stderr]     |                 |
Nov 29 22:05:49.322 INFO [stderr]     |                 help: remove this `mut`
Nov 29 22:05:49.322 INFO [stderr] 
Nov 29 22:05:49.325 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.325 INFO [stderr]     --> src/main.rs:1146:17
Nov 29 22:05:49.325 INFO [stderr]      |
Nov 29 22:05:49.325 INFO [stderr] 1146 |             let mut expr = Rc::new(Expression::new_blank());
Nov 29 22:05:49.325 INFO [stderr]      |                 ----^^^^
Nov 29 22:05:49.325 INFO [stderr]      |                 |
Nov 29 22:05:49.325 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.325 INFO [stderr] 
Nov 29 22:05:49.340 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.340 INFO [stderr]     --> src/main.rs:1268:17
Nov 29 22:05:49.340 INFO [stderr]      |
Nov 29 22:05:49.340 INFO [stderr] 1268 |             let mut prev_edit_constant = 0f64;
Nov 29 22:05:49.340 INFO [stderr]      |                 ----^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.340 INFO [stderr]      |                 |
Nov 29 22:05:49.340 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.340 INFO [stderr] 
Nov 29 22:05:49.340 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.340 INFO [stderr]     --> src/main.rs:1270:17
Nov 29 22:05:49.340 INFO [stderr]      |
Nov 29 22:05:49.340 INFO [stderr] 1270 |             let mut expr = self.new_expression(constraint,
Nov 29 22:05:49.340 INFO [stderr]      |                 ----^^^^
Nov 29 22:05:49.340 INFO [stderr]      |                 |
Nov 29 22:05:49.340 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.340 INFO [stderr] 
Nov 29 22:05:49.344 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.344 INFO [stderr]     --> src/main.rs:1389:22
Nov 29 22:05:49.344 INFO [stderr]      |
Nov 29 22:05:49.344 INFO [stderr] 1389 |                 Some(mut expr) => {
Nov 29 22:05:49.344 INFO [stderr]      |                      ----^^^^
Nov 29 22:05:49.344 INFO [stderr]      |                      |
Nov 29 22:05:49.344 INFO [stderr]      |                      help: remove this `mut`
Nov 29 22:05:49.344 INFO [stderr] 
Nov 29 22:05:49.360 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.360 INFO [stderr]     --> src/main.rs:1429:17
Nov 29 22:05:49.360 INFO [stderr]      |
Nov 29 22:05:49.360 INFO [stderr] 1429 |             let mut obj_row: Rc<Expression> = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.360 INFO [stderr]      |                 ----^^^^^^^
Nov 29 22:05:49.360 INFO [stderr]      |                 |
Nov 29 22:05:49.360 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.360 INFO [stderr] 
Nov 29 22:05:49.360 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.360 INFO [stderr]     --> src/main.rs:1432:17
Nov 29 22:05:49.361 INFO [stderr]      |
Nov 29 22:05:49.361 INFO [stderr] 1432 |             let mut error_option = self.error_vars.borrow_mut().get(constraint).map(|x| x.clone());
Nov 29 22:05:49.361 INFO [stderr]      |                 ----^^^^^^^^^^^^
Nov 29 22:05:49.361 INFO [stderr]      |                 |
Nov 29 22:05:49.361 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.361 INFO [stderr] 
Nov 29 22:05:49.376 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.376 INFO [stderr]     --> src/main.rs:1760:25
Nov 29 22:05:49.376 INFO [stderr]      |
Nov 29 22:05:49.376 INFO [stderr] 1760 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.376 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.376 INFO [stderr]      |                         |
Nov 29 22:05:49.376 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.376 INFO [stderr] 
Nov 29 22:05:49.376 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.376 INFO [stderr]     --> src/main.rs:1800:25
Nov 29 22:05:49.376 INFO [stderr]      |
Nov 29 22:05:49.376 INFO [stderr] 1800 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 29 22:05:49.376 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.376 INFO [stderr]      |                         |
Nov 29 22:05:49.376 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.376 INFO [stderr] 
Nov 29 22:05:49.376 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.376 INFO [stderr]     --> src/main.rs:1816:25
Nov 29 22:05:49.376 INFO [stderr]      |
Nov 29 22:05:49.376 INFO [stderr] 1816 |                     let mut some_val = constraint_expr.mref.borrow().clone().constant.clone();
Nov 29 22:05:49.376 INFO [stderr]      |                         ----^^^^^^^^
Nov 29 22:05:49.376 INFO [stderr]      |                         |
Nov 29 22:05:49.376 INFO [stderr]      |                         help: remove this `mut`
Nov 29 22:05:49.376 INFO [stderr] 
Nov 29 22:05:49.400 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.400 INFO [stderr]     --> src/main.rs:2038:17
Nov 29 22:05:49.400 INFO [stderr]      |
Nov 29 22:05:49.400 INFO [stderr] 2038 |             let mut len = self.infeasible_rows.borrow().len();
Nov 29 22:05:49.400 INFO [stderr]      |                 ----^^^
Nov 29 22:05:49.400 INFO [stderr]      |                 |
Nov 29 22:05:49.400 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.400 INFO [stderr] 
Nov 29 22:05:49.400 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.400 INFO [stderr]     --> src/main.rs:2184:14
Nov 29 22:05:49.400 INFO [stderr]      |
Nov 29 22:05:49.400 INFO [stderr] 2184 |             let mut m = self.columns.borrow().clone();
Nov 29 22:05:49.400 INFO [stderr]      |                 ----^
Nov 29 22:05:49.400 INFO [stderr]      |                 |
Nov 29 22:05:49.400 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.400 INFO [stderr] 
Nov 29 22:05:49.428 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.428 INFO [stderr]     --> src/main.rs:2406:17
Nov 29 22:05:49.428 INFO [stderr]      |
Nov 29 22:05:49.428 INFO [stderr] 2406 |             let mut x: Rc<Variable> = Rc::new(Variable::new(String::from("var1"),
Nov 29 22:05:49.428 INFO [stderr]      |                 ----^
Nov 29 22:05:49.428 INFO [stderr]      |                 |
Nov 29 22:05:49.428 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.428 INFO [stderr] 
Nov 29 22:05:49.428 INFO [stderr] warning: variable does not need to be mutable
Nov 29 22:05:49.428 INFO [stderr]     --> src/main.rs:2410:17
Nov 29 22:05:49.428 INFO [stderr]      |
Nov 29 22:05:49.428 INFO [stderr] 2410 |             let mut y: Rc<Variable> = Rc::new(Variable::new(String::from("var2"),
Nov 29 22:05:49.428 INFO [stderr]      |                 ----^
Nov 29 22:05:49.428 INFO [stderr]      |                 |
Nov 29 22:05:49.428 INFO [stderr]      |                 help: remove this `mut`
Nov 29 22:05:49.428 INFO [stderr] 
Nov 29 22:05:49.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.432 INFO [stderr]     --> src/main.rs:1216:10
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr] 1216 |             self.add_constraint(&c);
Nov 29 22:05:49.432 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr]      = note: #[warn(unused_must_use)] on by default
Nov 29 22:05:49.432 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.432 INFO [stderr] 
Nov 29 22:05:49.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.432 INFO [stderr]     --> src/main.rs:1280:21
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr] 1280 |                     self.add_with_artificial(&expr);
Nov 29 22:05:49.432 INFO [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.432 INFO [stderr] 
Nov 29 22:05:49.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.432 INFO [stderr]     --> src/main.rs:1307:17
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr] 1307 |                 self.optimise(&obj);
Nov 29 22:05:49.432 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.432 INFO [stderr] 
Nov 29 22:05:49.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.432 INFO [stderr]     --> src/main.rs:1373:13
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr] 1373 |             self.optimise(&obj_var);
Nov 29 22:05:49.432 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.432 INFO [stderr] 
Nov 29 22:05:49.432 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.432 INFO [stderr]     --> src/main.rs:1401:29
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr] 1401 |                             self.pivot(&entry_var, &slack_var);
Nov 29 22:05:49.432 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.432 INFO [stderr]      |
Nov 29 22:05:49.432 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.432 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1514:25
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1514 |                         self.pivot(&marker, &exit_var.unwrap());
Nov 29 22:05:49.438 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1574:17
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1574 |                 self.optimise(&obj);
Nov 29 22:05:49.438 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1691:13
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1691 |             self.remove_constraint(constraint);
Nov 29 22:05:49.438 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1702:17
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1702 |                 self.add_edit_var(var, Strength::REQUIRED);
Nov 29 22:05:49.438 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1703:17
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1703 |                 self.begin_edit();
Nov 29 22:05:49.438 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1706:25
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1706 |                         self.end_edit();
Nov 29 22:05:49.438 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:1854:13
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 1854 |             self.dual_optimise();
Nov 29 22:05:49.438 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:2026:17
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 2026 |                 self.pivot(&entry_var.clone().unwrap(), &exit_var.clone().unwrap());
Nov 29 22:05:49.438 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:2069:29
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 2069 |                             self.pivot(&entry_var.clone().unwrap(), &exit_var);
Nov 29 22:05:49.438 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.438 INFO [stderr] 
Nov 29 22:05:49.438 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 22:05:49.438 INFO [stderr]     --> src/main.rs:2424:13
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.438 INFO [stderr] 2424 |             s.add_constraint(&c);
Nov 29 22:05:49.438 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 29 22:05:49.438 INFO [stderr]      |
Nov 29 22:05:49.439 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 22:05:49.439 INFO [stderr] 
Nov 29 22:05:49.453 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
Nov 29 22:05:49.455 INFO [stderr] su: No module specific data is present
Nov 29 22:05:49.812 INFO running `"docker" "inspect" "8afe11caf3d69c5a7702e9d01f2a795cc3c30f38473ef0e629585ec6cb7a5685"`
Nov 29 22:05:49.942 INFO running `"docker" "rm" "-f" "8afe11caf3d69c5a7702e9d01f2a795cc3c30f38473ef0e629585ec6cb7a5685"`
Nov 29 22:05:50.176 INFO [stdout] 8afe11caf3d69c5a7702e9d01f2a795cc3c30f38473ef0e629585ec6cb7a5685