[INFO] cloning repository https://github.com/zi7feng/Parallel-SAT-Solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zi7feng/Parallel-SAT-Solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzi7feng%2FParallel-SAT-Solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzi7feng%2FParallel-SAT-Solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f89497489ac7e17412647e489859cf826d9ed260
[INFO] checking zi7feng/Parallel-SAT-Solver against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzi7feng%2FParallel-SAT-Solver" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zi7feng/Parallel-SAT-Solver
[INFO] finished tweaking git repo https://github.com/zi7feng/Parallel-SAT-Solver
[INFO] tweaked toml for git repo https://github.com/zi7feng/Parallel-SAT-Solver written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zi7feng/Parallel-SAT-Solver on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zi7feng/Parallel-SAT-Solver 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded maplit v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a3a9e49c975358f413be2855685c693aecdaf135c343e359dd8eb3dcb0428bb
[INFO] running `Command { std: "docker" "start" "-a" "5a3a9e49c975358f413be2855685c693aecdaf135c343e359dd8eb3dcb0428bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a3a9e49c975358f413be2855685c693aecdaf135c343e359dd8eb3dcb0428bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a3a9e49c975358f413be2855685c693aecdaf135c343e359dd8eb3dcb0428bb", kill_on_drop: false }`
[INFO] [stdout] 5a3a9e49c975358f413be2855685c693aecdaf135c343e359dd8eb3dcb0428bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a87215079f399f545714cc1362f4ca27e3069acb6d81d8401310bd2d4a256e34
[INFO] running `Command { std: "docker" "start" "-a" "a87215079f399f545714cc1362f4ca27e3069acb6d81d8401310bd2d4a256e34", kill_on_drop: false }`
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking dpll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[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: `std::hash::Hash`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[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: `std::mem::transmute`
[INFO] [stdout]    --> src/lib.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 395 |     use std::mem::transmute;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_formula` is never read
[INFO] [stdout]   --> src/lib.rs:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut new_formula = Vec::new();
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unassigned_var` is never read
[INFO] [stdout]    --> src/lib.rs:143:30
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut unassigned_var = Vec::new();
[INFO] [stdout]     |                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let mut new_formula = simplify_formula(&node.formula, &mut new_assignment);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ----^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |             let sorted_map: BTreeMap<_, _> = solution.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let sorted_map: BTreeMap<_, _> = solution.clone().into_iter().collect();
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_formula`
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_assignment`
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_assignment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:310:17
[INFO] [stdout]     |
[INFO] [stdout] 310 |             let sorted_map: BTreeMap<_, _> = new_assignment.clone().into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |             let sorted_map: BTreeMap<_, _> = new_assignment.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_formula` is never read
[INFO] [stdout]   --> src/lib.rs:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut new_formula = Vec::new();
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unassigned_var` is never read
[INFO] [stdout]    --> src/lib.rs:143:30
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut unassigned_var = Vec::new();
[INFO] [stdout]     |                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let mut new_formula = simplify_formula(&node.formula, &mut new_assignment);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ----^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |             let sorted_map: BTreeMap<_, _> = solution.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let sorted_map: BTreeMap<_, _> = solution.clone().into_iter().collect();
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_formula`
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_assignment`
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_assignment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:310:17
[INFO] [stdout]     |
[INFO] [stdout] 310 |             let sorted_map: BTreeMap<_, _> = new_assignment.clone().into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |             let sorted_map: BTreeMap<_, _> = new_assignment.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:466:13
[INFO] [stdout]     |
[INFO] [stdout] 466 |         let mut assignment = hashmap! {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `popped_node`
[INFO] [stdout]    --> src/lib.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let popped_node = get_task(&mut tasklist).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_popped_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:521:13
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let mut assignment = hashmap! {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[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: `std::mem::transmute`
[INFO] [stdout]    --> src/lib.rs:395:9
[INFO] [stdout]     |
[INFO] [stdout] 395 |     use std::mem::transmute;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_formula` is never read
[INFO] [stdout]   --> src/lib.rs:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut new_formula = Vec::new();
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unassigned_var` is never read
[INFO] [stdout]    --> src/lib.rs:143:30
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut unassigned_var = Vec::new();
[INFO] [stdout]     |                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let mut new_formula = simplify_formula(&node.formula, &mut new_assignment);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ----^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |             let sorted_map: BTreeMap<_, _> = solution.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let sorted_map: BTreeMap<_, _> = solution.clone().into_iter().collect();
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_formula`
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_assignment`
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_assignment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:310:17
[INFO] [stdout]     |
[INFO] [stdout] 310 |             let sorted_map: BTreeMap<_, _> = new_assignment.clone().into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |             let sorted_map: BTreeMap<_, _> = new_assignment.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `start_time` is never read
[INFO] [stdout]    --> src/main.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   start_time = Instant::now();
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start_time` is never read
[INFO] [stdout]    --> src/main.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   start_time = Instant::now();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_task` is never used
[INFO] [stdout]    --> src/lib.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub fn get_task(tasklist: &mut Vec<Arc<Node>>) -> Option<Arc<Node>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_formula` is never read
[INFO] [stdout]   --> src/lib.rs:62:27
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut new_formula = Vec::new();
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `unassigned_var` is never read
[INFO] [stdout]    --> src/lib.rs:143:30
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut unassigned_var = Vec::new();
[INFO] [stdout]     |                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:291:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         let mut new_formula = simplify_formula(&node.formula, &mut new_assignment);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ----^^^^^^^^^^^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |             let sorted_map: BTreeMap<_, _> = solution.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |         let sorted_map: BTreeMap<_, _> = solution.clone().into_iter().collect();
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_formula`
[INFO] [stdout]    --> src/lib.rs:297:26
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_formula`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_assignment`
[INFO] [stdout]    --> src/lib.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 297 |             let (result, mut new_formula, mut new_assignment) = unit_propagation(new_formula.clone(), &mut new_assignment);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_assignment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:310:17
[INFO] [stdout]     |
[INFO] [stdout] 310 |             let sorted_map: BTreeMap<_, _> = new_assignment.clone().into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sorted_map`
[INFO] [stdout]    --> src/lib.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |             let sorted_map: BTreeMap<_, _> = new_assignment.into_iter().collect();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sorted_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:466:13
[INFO] [stdout]     |
[INFO] [stdout] 466 |         let mut assignment = hashmap! {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `popped_node`
[INFO] [stdout]    --> src/lib.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |         let popped_node = get_task(&mut tasklist).unwrap();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_popped_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:521:13
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let mut assignment = hashmap! {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `start_time` is never read
[INFO] [stdout]    --> src/main.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   start_time = Instant::now();
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `start_time` is never read
[INFO] [stdout]    --> src/main.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   start_time = Instant::now();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "a87215079f399f545714cc1362f4ca27e3069acb6d81d8401310bd2d4a256e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87215079f399f545714cc1362f4ca27e3069acb6d81d8401310bd2d4a256e34", kill_on_drop: false }`
[INFO] [stdout] a87215079f399f545714cc1362f4ca27e3069acb6d81d8401310bd2d4a256e34
