[INFO] updating cached repository Dialock/Logic_Solver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dialock/Logic_Solver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dialock/Logic_Solver" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Dialock/Logic_Solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Dialock/Logic_Solver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dialock/Logic_Solver" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Dialock/Logic_Solver"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Dialock/Logic_Solver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3231369b0faa60a525b0f02bafa48de3334b22ec
[INFO] sha for GitHub repo Dialock/Logic_Solver: 3231369b0faa60a525b0f02bafa48de3334b22ec
[INFO] validating manifest of Dialock/Logic_Solver on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Dialock/Logic_Solver on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Dialock/Logic_Solver
[INFO] finished frobbing Dialock/Logic_Solver
[INFO] frobbed toml for Dialock/Logic_Solver written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Dialock/Logic_Solver/Cargo.toml
[INFO] started frobbing Dialock/Logic_Solver
[INFO] finished frobbing Dialock/Logic_Solver
[INFO] frobbed toml for Dialock/Logic_Solver written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Dialock/Logic_Solver/Cargo.toml
[INFO] crate Dialock/Logic_Solver already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Dialock/Logic_Solver against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Dialock/Logic_Solver:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 84f918515b12081ead0ef38668d11cb0fd9b3aae6e6d155224c736c65061a06f
[INFO] running `"docker" "start" "-a" "84f918515b12081ead0ef38668d11cb0fd9b3aae6e6d155224c736c65061a06f"`
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking logic_solver v0.1.0 (/opt/crater/workdir)
[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 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 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 variable: `list`
[INFO] [stderr]   --> src/main.rs:86:10
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |             ^^^^ help: consider prefixing 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:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |             ^^^^ help: consider prefixing 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: consider prefixing 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:5:1
[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:68:1
[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:96:1
[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:100:1
[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:4:1
[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:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_true_multi() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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 variable: `list`
[INFO] [stderr]   --> src/main.rs:86:10
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |             ^^^^ help: consider prefixing 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:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let mut list: LinkedList<String> = LinkedList::new();
[INFO] [stderr]    |             ^^^^ help: consider prefixing 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: consider prefixing 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:5:1
[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:68:1
[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:96:1
[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:100:1
[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:4:1
[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:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run_true_multi() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `"docker" "inspect" "84f918515b12081ead0ef38668d11cb0fd9b3aae6e6d155224c736c65061a06f"`
[INFO] running `"docker" "rm" "-f" "84f918515b12081ead0ef38668d11cb0fd9b3aae6e6d155224c736c65061a06f"`
[INFO] [stdout] 84f918515b12081ead0ef38668d11cb0fd9b3aae6e6d155224c736c65061a06f