[INFO] cloning repository https://github.com/Dialock/Logic_Solver
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dialock/Logic_Solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FLogic_Solver"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FLogic_Solver'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3231369b0faa60a525b0f02bafa48de3334b22ec
[INFO] testing Dialock/Logic_Solver against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDialock%2FLogic_Solver" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dialock/Logic_Solver on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Dialock/Logic_Solver
[INFO] finished tweaking git repo https://github.com/Dialock/Logic_Solver
[INFO] tweaked toml for git repo https://github.com/Dialock/Logic_Solver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Dialock/Logic_Solver already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 84961a2b9ce10889cd359dc17ddd06c6cb6c4876d82bedfd4e1bb3f7b97ac5ae
[INFO] running `"docker" "start" "-a" "84961a2b9ce10889cd359dc17ddd06c6cb6c4876d82bedfd4e1bb3f7b97ac5ae"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ucd-util v0.1.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling text_io v0.1.7
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling logic_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::str::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::str::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/val_inval.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::LinkedList`
[INFO] [stderr]  --> src/val_inval.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |           /// Parses the user input to select solver
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 46 |           match input_trimmed.parse::<i32>() {
[INFO] [stderr]    |  _________-
[INFO] [stderr] 47 | |             Ok(choice) => match choice {
[INFO] [stderr] 48 | |                                 1 => get_arguments("multi", choice),
[INFO] [stderr] 49 | |                                 2 => get_arguments("multi", choice),
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |
[INFO] [stderr] 56 | |         };
[INFO] [stderr]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/truth_table_single.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_truth_table_single(s: &str) {
[INFO] [stderr]   |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_tree`
[INFO] [stderr]  --> src/truth_tree.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn run_tree() {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_string`
[INFO] [stderr]   --> src/truth_tree.rs:68:4
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn check_string(s: &str) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `isolate_string`
[INFO] [stderr]   --> src/truth_tree.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn isolate_string(s: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evalute_argument`
[INFO] [stderr]    --> src/truth_tree.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn evalute_argument(s: &str) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_val_inval`
[INFO] [stderr]  --> src/val_inval.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run_val_inval() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_true_multi`
[INFO] [stderr]  --> src/truth_table_multi.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_true_multi() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.71s
[INFO] running `"docker" "inspect" "84961a2b9ce10889cd359dc17ddd06c6cb6c4876d82bedfd4e1bb3f7b97ac5ae"`
[INFO] running `"docker" "rm" "-f" "84961a2b9ce10889cd359dc17ddd06c6cb6c4876d82bedfd4e1bb3f7b97ac5ae"`
[INFO] [stdout] 84961a2b9ce10889cd359dc17ddd06c6cb6c4876d82bedfd4e1bb3f7b97ac5ae
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 460db6b9ea9c4232ae3745cfa18d1778716013b350e2293198999dbdb2058531
[INFO] running `"docker" "start" "-a" "460db6b9ea9c4232ae3745cfa18d1778716013b350e2293198999dbdb2058531"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling logic_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::str::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::str::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/val_inval.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::LinkedList`
[INFO] [stderr]  --> src/val_inval.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |           /// Parses the user input to select solver
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 46 |           match input_trimmed.parse::<i32>() {
[INFO] [stderr]    |  _________-
[INFO] [stderr] 47 | |             Ok(choice) => match choice {
[INFO] [stderr] 48 | |                                 1 => get_arguments("multi", choice),
[INFO] [stderr] 49 | |                                 2 => get_arguments("multi", choice),
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |
[INFO] [stderr] 56 | |         };
[INFO] [stderr]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/truth_table_single.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_truth_table_single(s: &str) {
[INFO] [stderr]   |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_tree`
[INFO] [stderr]  --> src/truth_tree.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn run_tree() {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_string`
[INFO] [stderr]   --> src/truth_tree.rs:68:4
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn check_string(s: &str) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `isolate_string`
[INFO] [stderr]   --> src/truth_tree.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn isolate_string(s: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evalute_argument`
[INFO] [stderr]    --> src/truth_tree.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn evalute_argument(s: &str) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_val_inval`
[INFO] [stderr]  --> src/val_inval.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run_val_inval() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_true_multi`
[INFO] [stderr]  --> src/truth_table_multi.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_true_multi() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "460db6b9ea9c4232ae3745cfa18d1778716013b350e2293198999dbdb2058531"`
[INFO] running `"docker" "rm" "-f" "460db6b9ea9c4232ae3745cfa18d1778716013b350e2293198999dbdb2058531"`
[INFO] [stdout] 460db6b9ea9c4232ae3745cfa18d1778716013b350e2293198999dbdb2058531
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f33e93032dd5ad63b9adc3c212cbf0df102807fda276864c8dcdad0b8c7d1aa
[INFO] running `"docker" "start" "-a" "0f33e93032dd5ad63b9adc3c212cbf0df102807fda276864c8dcdad0b8c7d1aa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::str::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::str::*;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/val_inval.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::LinkedList`
[INFO] [stderr]  --> src/val_inval.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::LinkedList;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |           /// Parses the user input to select solver
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 46 |           match input_trimmed.parse::<i32>() {
[INFO] [stderr]    |  _________-
[INFO] [stderr] 47 | |             Ok(choice) => match choice {
[INFO] [stderr] 48 | |                                 1 => get_arguments("multi", choice),
[INFO] [stderr] 49 | |                                 2 => get_arguments("multi", choice),
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |
[INFO] [stderr] 56 | |         };
[INFO] [stderr]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `list`
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/truth_table_single.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_truth_table_single(s: &str) {
[INFO] [stderr]   |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:86:6
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/truth_tree.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_tree`
[INFO] [stderr]  --> src/truth_tree.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn run_tree() {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_string`
[INFO] [stderr]   --> src/truth_tree.rs:68:4
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn check_string(s: &str) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `isolate_string`
[INFO] [stderr]   --> src/truth_tree.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn isolate_string(s: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evalute_argument`
[INFO] [stderr]    --> src/truth_tree.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn evalute_argument(s: &str) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_val_inval`
[INFO] [stderr]  --> src/val_inval.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run_val_inval() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_true_multi`
[INFO] [stderr]  --> src/truth_table_multi.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_true_multi() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/logic_solver-13dc5bccd5fefb58
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0f33e93032dd5ad63b9adc3c212cbf0df102807fda276864c8dcdad0b8c7d1aa"`
[INFO] running `"docker" "rm" "-f" "0f33e93032dd5ad63b9adc3c212cbf0df102807fda276864c8dcdad0b8c7d1aa"`
[INFO] [stdout] 0f33e93032dd5ad63b9adc3c212cbf0df102807fda276864c8dcdad0b8c7d1aa