Nov 28 00:25:34.532 INFO checking mohas556/cassowaryr against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 00:25:34.533 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 00:25:35.046 INFO [stdout] 8929c541d29266f5b3babeae8555edcfa7ca822b891c89cf81fcf7cd20d7e593
Nov 28 00:25:35.052 INFO running `"docker" "start" "-a" "8929c541d29266f5b3babeae8555edcfa7ca822b891c89cf81fcf7cd20d7e593"`
Nov 28 00:25:36.747 INFO [stderr] usermod: no changes
Nov 28 00:25:36.804 INFO [stderr]     Checking cassowaryr v0.1.0 (/source)
Nov 28 00:25:37.224 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 00:25:37.225 INFO [stderr]     --> src/lib.rs:2055:36
Nov 28 00:25:37.225 INFO [stderr]      |
Nov 28 00:25:37.225 INFO [stderr] 2055 |                                 if (val > 0f64 && var.pivotable()) {
Nov 28 00:25:37.226 INFO [stderr]      |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 00:25:37.226 INFO [stderr]      |
Nov 28 00:25:37.227 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Nov 28 00:25:37.227 INFO [stderr] 
Nov 28 00:25:37.392 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 28 00:25:37.392 INFO [stderr]     --> src/lib.rs:2055:36
Nov 28 00:25:37.392 INFO [stderr]      |
Nov 28 00:25:37.393 INFO [stderr] 2055 |                                 if (val > 0f64 && var.pivotable()) {
Nov 28 00:25:37.393 INFO [stderr]      |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 00:25:37.394 INFO [stderr]      |
Nov 28 00:25:37.394 INFO [stderr]      = note: #[warn(unused_parens)] on by default
Nov 28 00:25:37.394 INFO [stderr] 
Nov 28 00:25:37.661 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 28 00:25:37.661 INFO [stderr]     --> src/lib.rs:1838:25
Nov 28 00:25:37.661 INFO [stderr]      |
Nov 28 00:25:37.662 INFO [stderr] 1838 |                         prev_edit_constant =  some_val;
Nov 28 00:25:37.662 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:37.662 INFO [stderr]      |
Nov 28 00:25:37.662 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 28 00:25:37.662 INFO [stderr] 
Nov 28 00:25:37.662 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 00:25:37.662 INFO [stderr]     --> src/lib.rs:2006:25
Nov 28 00:25:37.662 INFO [stderr]      |
Nov 28 00:25:37.662 INFO [stderr] 2006 |                 let mut r: f64 = 0f64;
Nov 28 00:25:37.663 INFO [stderr]      |                         ^
Nov 28 00:25:37.663 INFO [stderr] 
Nov 28 00:25:37.804 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 28 00:25:37.804 INFO [stderr]     --> src/lib.rs:1838:25
Nov 28 00:25:37.804 INFO [stderr]      |
Nov 28 00:25:37.804 INFO [stderr] 1838 |                         prev_edit_constant =  some_val;
Nov 28 00:25:37.804 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:37.804 INFO [stderr]      |
Nov 28 00:25:37.804 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 28 00:25:37.804 INFO [stderr] 
Nov 28 00:25:37.804 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 00:25:37.804 INFO [stderr]     --> src/lib.rs:2006:25
Nov 28 00:25:37.804 INFO [stderr]      |
Nov 28 00:25:37.804 INFO [stderr] 2006 |                 let mut r: f64 = 0f64;
Nov 28 00:25:37.804 INFO [stderr]      |                         ^
Nov 28 00:25:37.804 INFO [stderr] 
Nov 28 00:25:38.796 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 28 00:25:38.797 INFO [stderr]     --> src/main.rs:1830:7
Nov 28 00:25:38.797 INFO [stderr]      |
Nov 28 00:25:38.797 INFO [stderr] 1830 |                         prev_edit_constant =  some_val;
Nov 28 00:25:38.797 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:38.797 INFO [stderr]      |
Nov 28 00:25:38.797 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 28 00:25:38.797 INFO [stderr] 
Nov 28 00:25:38.797 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 00:25:38.797 INFO [stderr]     --> src/main.rs:1997:25
Nov 28 00:25:38.797 INFO [stderr]      |
Nov 28 00:25:38.797 INFO [stderr] 1997 |                 let mut r: f64 = 0f64;
Nov 28 00:25:38.797 INFO [stderr]      |                         ^
Nov 28 00:25:38.797 INFO [stderr] 
Nov 28 00:25:38.860 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.860 INFO [stderr]    --> src/main.rs:863:14
Nov 28 00:25:38.860 INFO [stderr]     |
Nov 28 00:25:38.860 INFO [stderr] 863 |             let mut expr = Rc::new(Expression::new_blank());
Nov 28 00:25:38.860 INFO [stderr]     |                 ----^^^^
Nov 28 00:25:38.860 INFO [stderr]     |                 |
Nov 28 00:25:38.860 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:38.860 INFO [stderr]     |
Nov 28 00:25:38.860 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 00:25:38.860 INFO [stderr] 
Nov 28 00:25:38.860 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.860 INFO [stderr]    --> src/main.rs:915:21
Nov 28 00:25:38.860 INFO [stderr]     |
Nov 28 00:25:38.860 INFO [stderr] 915 |                 let mut expr = Rc::new(Expression::new_single_variable(var_two));
Nov 28 00:25:38.860 INFO [stderr]     |                     ----^^^^
Nov 28 00:25:38.860 INFO [stderr]     |                     |
Nov 28 00:25:38.860 INFO [stderr]     |                     help: remove this `mut`
Nov 28 00:25:38.860 INFO [stderr] 
Nov 28 00:25:38.862 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.862 INFO [stderr]    --> src/main.rs:937:17
Nov 28 00:25:38.862 INFO [stderr]     |
Nov 28 00:25:38.862 INFO [stderr] 937 |             let mut cexpr: Rc<Expression> = expr.clone();
Nov 28 00:25:38.862 INFO [stderr]     |                 ----^^^^^
Nov 28 00:25:38.862 INFO [stderr]     |                 |
Nov 28 00:25:38.862 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:38.862 INFO [stderr] 
Nov 28 00:25:38.862 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.862 INFO [stderr]    --> src/main.rs:966:17
Nov 28 00:25:38.862 INFO [stderr]     |
Nov 28 00:25:38.862 INFO [stderr] 966 |             let mut expr = expr_two.clone();
Nov 28 00:25:38.862 INFO [stderr]     |                 ----^^^^
Nov 28 00:25:38.862 INFO [stderr]     |                 |
Nov 28 00:25:38.862 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:38.862 INFO [stderr] 
Nov 28 00:25:38.868 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.868 INFO [stderr]     --> src/main.rs:1146:17
Nov 28 00:25:38.868 INFO [stderr]      |
Nov 28 00:25:38.868 INFO [stderr] 1146 |             let mut expr = Rc::new(Expression::new_blank());
Nov 28 00:25:38.868 INFO [stderr]      |                 ----^^^^
Nov 28 00:25:38.868 INFO [stderr]      |                 |
Nov 28 00:25:38.868 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.868 INFO [stderr] 
Nov 28 00:25:38.888 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.888 INFO [stderr]     --> src/main.rs:1268:17
Nov 28 00:25:38.888 INFO [stderr]      |
Nov 28 00:25:38.888 INFO [stderr] 1268 |             let mut prev_edit_constant = 0f64;
Nov 28 00:25:38.888 INFO [stderr]      |                 ----^^^^^^^^^^^^^^^^^^
Nov 28 00:25:38.888 INFO [stderr]      |                 |
Nov 28 00:25:38.888 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.888 INFO [stderr] 
Nov 28 00:25:38.888 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.888 INFO [stderr]     --> src/main.rs:1270:17
Nov 28 00:25:38.888 INFO [stderr]      |
Nov 28 00:25:38.888 INFO [stderr] 1270 |             let mut expr = self.new_expression(constraint,
Nov 28 00:25:38.888 INFO [stderr]      |                 ----^^^^
Nov 28 00:25:38.888 INFO [stderr]      |                 |
Nov 28 00:25:38.888 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.888 INFO [stderr] 
Nov 28 00:25:38.900 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.900 INFO [stderr]     --> src/main.rs:1389:22
Nov 28 00:25:38.900 INFO [stderr]      |
Nov 28 00:25:38.900 INFO [stderr] 1389 |                 Some(mut expr) => {
Nov 28 00:25:38.900 INFO [stderr]      |                      ----^^^^
Nov 28 00:25:38.900 INFO [stderr]      |                      |
Nov 28 00:25:38.900 INFO [stderr]      |                      help: remove this `mut`
Nov 28 00:25:38.900 INFO [stderr] 
Nov 28 00:25:38.928 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.928 INFO [stderr]     --> src/main.rs:1429:17
Nov 28 00:25:38.928 INFO [stderr]      |
Nov 28 00:25:38.928 INFO [stderr] 1429 |             let mut obj_row: Rc<Expression> = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:38.928 INFO [stderr]      |                 ----^^^^^^^
Nov 28 00:25:38.928 INFO [stderr]      |                 |
Nov 28 00:25:38.928 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.928 INFO [stderr] 
Nov 28 00:25:38.928 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.928 INFO [stderr]     --> src/main.rs:1432:17
Nov 28 00:25:38.928 INFO [stderr]      |
Nov 28 00:25:38.928 INFO [stderr] 1432 |             let mut error_option = self.error_vars.borrow_mut().get(constraint).map(|x| x.clone());
Nov 28 00:25:38.928 INFO [stderr]      |                 ----^^^^^^^^^^^^
Nov 28 00:25:38.928 INFO [stderr]      |                 |
Nov 28 00:25:38.928 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.928 INFO [stderr] 
Nov 28 00:25:38.953 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.953 INFO [stderr]     --> src/main.rs:1760:25
Nov 28 00:25:38.959 INFO [stderr]      |
Nov 28 00:25:38.959 INFO [stderr] 1760 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:38.959 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:38.959 INFO [stderr]      |                         |
Nov 28 00:25:38.959 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:38.959 INFO [stderr] 
Nov 28 00:25:38.959 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.959 INFO [stderr]     --> src/main.rs:1800:25
Nov 28 00:25:38.959 INFO [stderr]      |
Nov 28 00:25:38.959 INFO [stderr] 1800 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:38.959 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:38.959 INFO [stderr]      |                         |
Nov 28 00:25:38.959 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:38.959 INFO [stderr] 
Nov 28 00:25:38.959 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.959 INFO [stderr]     --> src/main.rs:1816:25
Nov 28 00:25:38.959 INFO [stderr]      |
Nov 28 00:25:38.959 INFO [stderr] 1816 |                     let mut some_val = constraint_expr.mref.borrow().clone().constant.clone();
Nov 28 00:25:38.959 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:38.959 INFO [stderr]      |                         |
Nov 28 00:25:38.959 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:38.960 INFO [stderr] 
Nov 28 00:25:38.984 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.985 INFO [stderr]     --> src/main.rs:2038:17
Nov 28 00:25:38.985 INFO [stderr]      |
Nov 28 00:25:38.985 INFO [stderr] 2038 |             let mut len = self.infeasible_rows.borrow().len();
Nov 28 00:25:38.985 INFO [stderr]      |                 ----^^^
Nov 28 00:25:38.985 INFO [stderr]      |                 |
Nov 28 00:25:38.985 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:38.988 INFO [stderr] 
Nov 28 00:25:38.995 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:38.996 INFO [stderr]     --> src/main.rs:2184:14
Nov 28 00:25:38.996 INFO [stderr]      |
Nov 28 00:25:38.996 INFO [stderr] 2184 |             let mut m = self.columns.borrow().clone();
Nov 28 00:25:38.996 INFO [stderr]      |                 ----^
Nov 28 00:25:38.996 INFO [stderr]      |                 |
Nov 28 00:25:38.996 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.000 INFO [stderr] 
Nov 28 00:25:39.008 INFO [stderr] warning: value assigned to `prev_edit_constant` is never read
Nov 28 00:25:39.008 INFO [stderr]     --> src/main.rs:1830:7
Nov 28 00:25:39.008 INFO [stderr]      |
Nov 28 00:25:39.008 INFO [stderr] 1830 |                         prev_edit_constant =  some_val;
Nov 28 00:25:39.008 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.008 INFO [stderr]      |
Nov 28 00:25:39.012 INFO [stderr]      = note: #[warn(unused_assignments)] on by default
Nov 28 00:25:39.012 INFO [stderr] 
Nov 28 00:25:39.012 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 00:25:39.012 INFO [stderr]     --> src/main.rs:1997:25
Nov 28 00:25:39.012 INFO [stderr]      |
Nov 28 00:25:39.012 INFO [stderr] 1997 |                 let mut r: f64 = 0f64;
Nov 28 00:25:39.012 INFO [stderr]      |                         ^
Nov 28 00:25:39.012 INFO [stderr] 
Nov 28 00:25:39.052 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.052 INFO [stderr]    --> src/main.rs:863:14
Nov 28 00:25:39.052 INFO [stderr]     |
Nov 28 00:25:39.052 INFO [stderr] 863 |             let mut expr = Rc::new(Expression::new_blank());
Nov 28 00:25:39.052 INFO [stderr]     |                 ----^^^^
Nov 28 00:25:39.052 INFO [stderr]     |                 |
Nov 28 00:25:39.052 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:39.052 INFO [stderr]     |
Nov 28 00:25:39.052 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 00:25:39.052 INFO [stderr] 
Nov 28 00:25:39.054 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.054 INFO [stderr]    --> src/main.rs:915:21
Nov 28 00:25:39.054 INFO [stderr]     |
Nov 28 00:25:39.054 INFO [stderr] 915 |                 let mut expr = Rc::new(Expression::new_single_variable(var_two));
Nov 28 00:25:39.054 INFO [stderr]     |                     ----^^^^
Nov 28 00:25:39.054 INFO [stderr]     |                     |
Nov 28 00:25:39.054 INFO [stderr]     |                     help: remove this `mut`
Nov 28 00:25:39.054 INFO [stderr] 
Nov 28 00:25:39.055 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.055 INFO [stderr]    --> src/main.rs:937:17
Nov 28 00:25:39.055 INFO [stderr]     |
Nov 28 00:25:39.055 INFO [stderr] 937 |             let mut cexpr: Rc<Expression> = expr.clone();
Nov 28 00:25:39.055 INFO [stderr]     |                 ----^^^^^
Nov 28 00:25:39.055 INFO [stderr]     |                 |
Nov 28 00:25:39.055 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:39.055 INFO [stderr] 
Nov 28 00:25:39.056 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.056 INFO [stderr]     --> src/main.rs:1216:10
Nov 28 00:25:39.056 INFO [stderr]      |
Nov 28 00:25:39.056 INFO [stderr] 1216 |             self.add_constraint(&c);
Nov 28 00:25:39.056 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.056 INFO [stderr]      |
Nov 28 00:25:39.056 INFO [stderr]      = note: #[warn(unused_must_use)] on by default
Nov 28 00:25:39.056 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.056 INFO [stderr] 
Nov 28 00:25:39.056 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.056 INFO [stderr]    --> src/main.rs:966:17
Nov 28 00:25:39.056 INFO [stderr]     |
Nov 28 00:25:39.056 INFO [stderr] 966 |             let mut expr = expr_two.clone();
Nov 28 00:25:39.056 INFO [stderr]     |                 ----^^^^
Nov 28 00:25:39.056 INFO [stderr]     |                 |
Nov 28 00:25:39.056 INFO [stderr]     |                 help: remove this `mut`
Nov 28 00:25:39.056 INFO [stderr] 
Nov 28 00:25:39.057 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.057 INFO [stderr]     --> src/main.rs:1280:21
Nov 28 00:25:39.057 INFO [stderr]      |
Nov 28 00:25:39.057 INFO [stderr] 1280 |                     self.add_with_artificial(&expr);
Nov 28 00:25:39.057 INFO [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.057 INFO [stderr]      |
Nov 28 00:25:39.057 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.057 INFO [stderr] 
Nov 28 00:25:39.060 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.060 INFO [stderr]     --> src/main.rs:1307:17
Nov 28 00:25:39.060 INFO [stderr]      |
Nov 28 00:25:39.060 INFO [stderr] 1307 |                 self.optimise(&obj);
Nov 28 00:25:39.060 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.061 INFO [stderr]      |
Nov 28 00:25:39.061 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.061 INFO [stderr] 
Nov 28 00:25:39.061 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.061 INFO [stderr]     --> src/main.rs:1373:13
Nov 28 00:25:39.061 INFO [stderr]      |
Nov 28 00:25:39.061 INFO [stderr] 1373 |             self.optimise(&obj_var);
Nov 28 00:25:39.061 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.061 INFO [stderr]      |
Nov 28 00:25:39.061 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.061 INFO [stderr] 
Nov 28 00:25:39.061 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.062 INFO [stderr]     --> src/main.rs:1401:29
Nov 28 00:25:39.062 INFO [stderr]      |
Nov 28 00:25:39.062 INFO [stderr] 1401 |                             self.pivot(&entry_var, &slack_var);
Nov 28 00:25:39.062 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.062 INFO [stderr]      |
Nov 28 00:25:39.062 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.062 INFO [stderr] 
Nov 28 00:25:39.062 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.062 INFO [stderr]     --> src/main.rs:1514:25
Nov 28 00:25:39.062 INFO [stderr]      |
Nov 28 00:25:39.062 INFO [stderr] 1514 |                         self.pivot(&marker, &exit_var.unwrap());
Nov 28 00:25:39.063 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.063 INFO [stderr]      |
Nov 28 00:25:39.063 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.063 INFO [stderr] 
Nov 28 00:25:39.063 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.063 INFO [stderr]     --> src/main.rs:1574:17
Nov 28 00:25:39.063 INFO [stderr]      |
Nov 28 00:25:39.063 INFO [stderr] 1574 |                 self.optimise(&obj);
Nov 28 00:25:39.063 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.063 INFO [stderr]      |
Nov 28 00:25:39.063 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.063 INFO [stderr] 
Nov 28 00:25:39.064 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.064 INFO [stderr]     --> src/main.rs:1691:13
Nov 28 00:25:39.064 INFO [stderr]      |
Nov 28 00:25:39.064 INFO [stderr] 1691 |             self.remove_constraint(constraint);
Nov 28 00:25:39.064 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.064 INFO [stderr]      |
Nov 28 00:25:39.064 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.064 INFO [stderr] 
Nov 28 00:25:39.064 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.064 INFO [stderr]     --> src/main.rs:1702:17
Nov 28 00:25:39.064 INFO [stderr]      |
Nov 28 00:25:39.064 INFO [stderr] 1702 |                 self.add_edit_var(var, Strength::REQUIRED);
Nov 28 00:25:39.064 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.064 INFO [stderr]      |
Nov 28 00:25:39.064 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.064 INFO [stderr] 
Nov 28 00:25:39.065 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.065 INFO [stderr]     --> src/main.rs:1703:17
Nov 28 00:25:39.065 INFO [stderr]      |
Nov 28 00:25:39.065 INFO [stderr] 1703 |                 self.begin_edit();
Nov 28 00:25:39.065 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.065 INFO [stderr]      |
Nov 28 00:25:39.065 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.065 INFO [stderr] 
Nov 28 00:25:39.065 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.065 INFO [stderr]     --> src/main.rs:1706:25
Nov 28 00:25:39.065 INFO [stderr]      |
Nov 28 00:25:39.065 INFO [stderr] 1706 |                         self.end_edit();
Nov 28 00:25:39.065 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^
Nov 28 00:25:39.065 INFO [stderr]      |
Nov 28 00:25:39.066 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.066 INFO [stderr] 
Nov 28 00:25:39.066 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.066 INFO [stderr]     --> src/main.rs:1854:13
Nov 28 00:25:39.066 INFO [stderr]      |
Nov 28 00:25:39.066 INFO [stderr] 1854 |             self.dual_optimise();
Nov 28 00:25:39.067 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.067 INFO [stderr]      |
Nov 28 00:25:39.067 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.067 INFO [stderr] 
Nov 28 00:25:39.068 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.068 INFO [stderr]     --> src/main.rs:2026:17
Nov 28 00:25:39.068 INFO [stderr]      |
Nov 28 00:25:39.068 INFO [stderr] 2026 |                 self.pivot(&entry_var.clone().unwrap(), &exit_var.clone().unwrap());
Nov 28 00:25:39.068 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.068 INFO [stderr]      |
Nov 28 00:25:39.068 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.069 INFO [stderr] 
Nov 28 00:25:39.072 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.072 INFO [stderr]     --> src/main.rs:2069:29
Nov 28 00:25:39.072 INFO [stderr]      |
Nov 28 00:25:39.072 INFO [stderr] 2069 |                             self.pivot(&entry_var.clone().unwrap(), &exit_var);
Nov 28 00:25:39.072 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.072 INFO [stderr]      |
Nov 28 00:25:39.072 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.072 INFO [stderr] 
Nov 28 00:25:39.072 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.072 INFO [stderr]     --> src/main.rs:1146:17
Nov 28 00:25:39.072 INFO [stderr]      |
Nov 28 00:25:39.072 INFO [stderr] 1146 |             let mut expr = Rc::new(Expression::new_blank());
Nov 28 00:25:39.072 INFO [stderr]      |                 ----^^^^
Nov 28 00:25:39.072 INFO [stderr]      |                 |
Nov 28 00:25:39.072 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.072 INFO [stderr] 
Nov 28 00:25:39.092 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.092 INFO [stderr]     --> src/main.rs:1268:17
Nov 28 00:25:39.092 INFO [stderr]      |
Nov 28 00:25:39.092 INFO [stderr] 1268 |             let mut prev_edit_constant = 0f64;
Nov 28 00:25:39.092 INFO [stderr]      |                 ----^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.092 INFO [stderr]      |                 |
Nov 28 00:25:39.092 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.092 INFO [stderr] 
Nov 28 00:25:39.092 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.092 INFO [stderr]     --> src/main.rs:1270:17
Nov 28 00:25:39.092 INFO [stderr]      |
Nov 28 00:25:39.092 INFO [stderr] 1270 |             let mut expr = self.new_expression(constraint,
Nov 28 00:25:39.092 INFO [stderr]      |                 ----^^^^
Nov 28 00:25:39.092 INFO [stderr]      |                 |
Nov 28 00:25:39.092 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.092 INFO [stderr] 
Nov 28 00:25:39.102 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.102 INFO [stderr]     --> src/main.rs:1389:22
Nov 28 00:25:39.102 INFO [stderr]      |
Nov 28 00:25:39.102 INFO [stderr] 1389 |                 Some(mut expr) => {
Nov 28 00:25:39.102 INFO [stderr]      |                      ----^^^^
Nov 28 00:25:39.102 INFO [stderr]      |                      |
Nov 28 00:25:39.102 INFO [stderr]      |                      help: remove this `mut`
Nov 28 00:25:39.102 INFO [stderr] 
Nov 28 00:25:39.130 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.130 INFO [stderr]     --> src/main.rs:1429:17
Nov 28 00:25:39.130 INFO [stderr]      |
Nov 28 00:25:39.130 INFO [stderr] 1429 |             let mut obj_row: Rc<Expression> = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:39.130 INFO [stderr]      |                 ----^^^^^^^
Nov 28 00:25:39.130 INFO [stderr]      |                 |
Nov 28 00:25:39.130 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.130 INFO [stderr] 
Nov 28 00:25:39.132 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.133 INFO [stderr]     --> src/main.rs:1432:17
Nov 28 00:25:39.133 INFO [stderr]      |
Nov 28 00:25:39.133 INFO [stderr] 1432 |             let mut error_option = self.error_vars.borrow_mut().get(constraint).map(|x| x.clone());
Nov 28 00:25:39.133 INFO [stderr]      |                 ----^^^^^^^^^^^^
Nov 28 00:25:39.133 INFO [stderr]      |                 |
Nov 28 00:25:39.133 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.133 INFO [stderr] 
Nov 28 00:25:39.161 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.161 INFO [stderr]     --> src/main.rs:1760:25
Nov 28 00:25:39.161 INFO [stderr]      |
Nov 28 00:25:39.161 INFO [stderr] 1760 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:39.161 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:39.161 INFO [stderr]      |                         |
Nov 28 00:25:39.161 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:39.161 INFO [stderr] 
Nov 28 00:25:39.161 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.161 INFO [stderr]     --> src/main.rs:1800:25
Nov 28 00:25:39.161 INFO [stderr]      |
Nov 28 00:25:39.161 INFO [stderr] 1800 |                     let mut row_expr = self.get_row_expression(&obj).unwrap();
Nov 28 00:25:39.161 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:39.161 INFO [stderr]      |                         |
Nov 28 00:25:39.161 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:39.161 INFO [stderr] 
Nov 28 00:25:39.162 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.162 INFO [stderr]     --> src/main.rs:1816:25
Nov 28 00:25:39.162 INFO [stderr]      |
Nov 28 00:25:39.162 INFO [stderr] 1816 |                     let mut some_val = constraint_expr.mref.borrow().clone().constant.clone();
Nov 28 00:25:39.162 INFO [stderr]      |                         ----^^^^^^^^
Nov 28 00:25:39.162 INFO [stderr]      |                         |
Nov 28 00:25:39.162 INFO [stderr]      |                         help: remove this `mut`
Nov 28 00:25:39.162 INFO [stderr] 
Nov 28 00:25:39.190 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.190 INFO [stderr]     --> src/main.rs:2038:17
Nov 28 00:25:39.190 INFO [stderr]      |
Nov 28 00:25:39.190 INFO [stderr] 2038 |             let mut len = self.infeasible_rows.borrow().len();
Nov 28 00:25:39.190 INFO [stderr]      |                 ----^^^
Nov 28 00:25:39.190 INFO [stderr]      |                 |
Nov 28 00:25:39.190 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.190 INFO [stderr] 
Nov 28 00:25:39.196 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.197 INFO [stderr]     --> src/main.rs:2184:14
Nov 28 00:25:39.197 INFO [stderr]      |
Nov 28 00:25:39.197 INFO [stderr] 2184 |             let mut m = self.columns.borrow().clone();
Nov 28 00:25:39.197 INFO [stderr]      |                 ----^
Nov 28 00:25:39.197 INFO [stderr]      |                 |
Nov 28 00:25:39.197 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.197 INFO [stderr] 
Nov 28 00:25:39.218 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.232 INFO [stderr]     --> src/main.rs:2406:17
Nov 28 00:25:39.232 INFO [stderr]      |
Nov 28 00:25:39.232 INFO [stderr] 2406 |             let mut x: Rc<Variable> = Rc::new(Variable::new(String::from("var1"),
Nov 28 00:25:39.232 INFO [stderr]      |                 ----^
Nov 28 00:25:39.232 INFO [stderr]      |                 |
Nov 28 00:25:39.232 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.232 INFO [stderr] 
Nov 28 00:25:39.232 INFO [stderr] warning: variable does not need to be mutable
Nov 28 00:25:39.232 INFO [stderr]     --> src/main.rs:2410:17
Nov 28 00:25:39.232 INFO [stderr]      |
Nov 28 00:25:39.232 INFO [stderr] 2410 |             let mut y: Rc<Variable> = Rc::new(Variable::new(String::from("var2"),
Nov 28 00:25:39.232 INFO [stderr]      |                 ----^
Nov 28 00:25:39.232 INFO [stderr]      |                 |
Nov 28 00:25:39.232 INFO [stderr]      |                 help: remove this `mut`
Nov 28 00:25:39.232 INFO [stderr] 
Nov 28 00:25:39.233 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.233 INFO [stderr]     --> src/main.rs:1216:10
Nov 28 00:25:39.233 INFO [stderr]      |
Nov 28 00:25:39.233 INFO [stderr] 1216 |             self.add_constraint(&c);
Nov 28 00:25:39.233 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.233 INFO [stderr]      |
Nov 28 00:25:39.233 INFO [stderr]      = note: #[warn(unused_must_use)] on by default
Nov 28 00:25:39.233 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.233 INFO [stderr] 
Nov 28 00:25:39.234 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.234 INFO [stderr]     --> src/main.rs:1280:21
Nov 28 00:25:39.234 INFO [stderr]      |
Nov 28 00:25:39.234 INFO [stderr] 1280 |                     self.add_with_artificial(&expr);
Nov 28 00:25:39.234 INFO [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.234 INFO [stderr]      |
Nov 28 00:25:39.234 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.234 INFO [stderr] 
Nov 28 00:25:39.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.235 INFO [stderr]     --> src/main.rs:1307:17
Nov 28 00:25:39.235 INFO [stderr]      |
Nov 28 00:25:39.235 INFO [stderr] 1307 |                 self.optimise(&obj);
Nov 28 00:25:39.235 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.235 INFO [stderr]      |
Nov 28 00:25:39.235 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.235 INFO [stderr] 
Nov 28 00:25:39.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.235 INFO [stderr]     --> src/main.rs:1373:13
Nov 28 00:25:39.235 INFO [stderr]      |
Nov 28 00:25:39.235 INFO [stderr] 1373 |             self.optimise(&obj_var);
Nov 28 00:25:39.235 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.235 INFO [stderr]      |
Nov 28 00:25:39.235 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.235 INFO [stderr] 
Nov 28 00:25:39.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.236 INFO [stderr]     --> src/main.rs:1401:29
Nov 28 00:25:39.236 INFO [stderr]      |
Nov 28 00:25:39.236 INFO [stderr] 1401 |                             self.pivot(&entry_var, &slack_var);
Nov 28 00:25:39.236 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.236 INFO [stderr]      |
Nov 28 00:25:39.236 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.236 INFO [stderr] 
Nov 28 00:25:39.236 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.236 INFO [stderr]     --> src/main.rs:1514:25
Nov 28 00:25:39.236 INFO [stderr]      |
Nov 28 00:25:39.236 INFO [stderr] 1514 |                         self.pivot(&marker, &exit_var.unwrap());
Nov 28 00:25:39.236 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.236 INFO [stderr]      |
Nov 28 00:25:39.236 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.236 INFO [stderr] 
Nov 28 00:25:39.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.237 INFO [stderr]     --> src/main.rs:1574:17
Nov 28 00:25:39.237 INFO [stderr]      |
Nov 28 00:25:39.237 INFO [stderr] 1574 |                 self.optimise(&obj);
Nov 28 00:25:39.237 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.237 INFO [stderr]      |
Nov 28 00:25:39.237 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.237 INFO [stderr] 
Nov 28 00:25:39.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.237 INFO [stderr]     --> src/main.rs:1691:13
Nov 28 00:25:39.238 INFO [stderr]      |
Nov 28 00:25:39.238 INFO [stderr] 1691 |             self.remove_constraint(constraint);
Nov 28 00:25:39.238 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.238 INFO [stderr]      |
Nov 28 00:25:39.238 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.238 INFO [stderr] 
Nov 28 00:25:39.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.238 INFO [stderr]     --> src/main.rs:1702:17
Nov 28 00:25:39.239 INFO [stderr]      |
Nov 28 00:25:39.239 INFO [stderr] 1702 |                 self.add_edit_var(var, Strength::REQUIRED);
Nov 28 00:25:39.239 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.239 INFO [stderr]      |
Nov 28 00:25:39.239 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.239 INFO [stderr] 
Nov 28 00:25:39.239 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.240 INFO [stderr]     --> src/main.rs:1703:17
Nov 28 00:25:39.240 INFO [stderr]      |
Nov 28 00:25:39.240 INFO [stderr] 1703 |                 self.begin_edit();
Nov 28 00:25:39.240 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.240 INFO [stderr]      |
Nov 28 00:25:39.240 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.240 INFO [stderr] 
Nov 28 00:25:39.241 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.241 INFO [stderr]     --> src/main.rs:1706:25
Nov 28 00:25:39.241 INFO [stderr]      |
Nov 28 00:25:39.241 INFO [stderr] 1706 |                         self.end_edit();
Nov 28 00:25:39.241 INFO [stderr]      |                         ^^^^^^^^^^^^^^^^
Nov 28 00:25:39.241 INFO [stderr]      |
Nov 28 00:25:39.241 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.241 INFO [stderr] 
Nov 28 00:25:39.242 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.242 INFO [stderr]     --> src/main.rs:1854:13
Nov 28 00:25:39.242 INFO [stderr]      |
Nov 28 00:25:39.242 INFO [stderr] 1854 |             self.dual_optimise();
Nov 28 00:25:39.242 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.242 INFO [stderr]      |
Nov 28 00:25:39.242 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.242 INFO [stderr] 
Nov 28 00:25:39.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.243 INFO [stderr]     --> src/main.rs:2026:17
Nov 28 00:25:39.243 INFO [stderr]      |
Nov 28 00:25:39.243 INFO [stderr] 2026 |                 self.pivot(&entry_var.clone().unwrap(), &exit_var.clone().unwrap());
Nov 28 00:25:39.243 INFO [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.243 INFO [stderr]      |
Nov 28 00:25:39.243 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.243 INFO [stderr] 
Nov 28 00:25:39.244 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.244 INFO [stderr]     --> src/main.rs:2069:29
Nov 28 00:25:39.244 INFO [stderr]      |
Nov 28 00:25:39.244 INFO [stderr] 2069 |                             self.pivot(&entry_var.clone().unwrap(), &exit_var);
Nov 28 00:25:39.244 INFO [stderr]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.244 INFO [stderr]      |
Nov 28 00:25:39.244 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.244 INFO [stderr] 
Nov 28 00:25:39.247 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 00:25:39.247 INFO [stderr]     --> src/main.rs:2424:13
Nov 28 00:25:39.247 INFO [stderr]      |
Nov 28 00:25:39.247 INFO [stderr] 2424 |             s.add_constraint(&c);
Nov 28 00:25:39.247 INFO [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:25:39.247 INFO [stderr]      |
Nov 28 00:25:39.247 INFO [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 00:25:39.247 INFO [stderr] 
Nov 28 00:25:39.272 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
Nov 28 00:25:39.276 INFO [stderr] su: No module specific data is present
Nov 28 00:25:40.037 INFO running `"docker" "inspect" "8929c541d29266f5b3babeae8555edcfa7ca822b891c89cf81fcf7cd20d7e593"`
Nov 28 00:25:40.302 INFO running `"docker" "rm" "-f" "8929c541d29266f5b3babeae8555edcfa7ca822b891c89cf81fcf7cd20d7e593"`
Nov 28 00:25:40.458 INFO [stdout] 8929c541d29266f5b3babeae8555edcfa7ca822b891c89cf81fcf7cd20d7e593