[INFO] updating cached repository https://github.com/modulitos/CtCI-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8bbaa49c3eca43a77cf1a2cea1b6f98071ad2c78 [INFO] checking modulitos/CtCI-rust against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust" "/workspace/builds/worker-0/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. 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Memory limited without swap. [INFO] [stdout] 504ad68b29460f46a99b08558b9785f85579e3f9c85ddbcb802b59b76d06af68 [INFO] running `"docker" "start" "-a" "504ad68b29460f46a99b08558b9785f85579e3f9c85ddbcb802b59b76d06af68"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking getrandom v0.1.7 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling derive_more v0.15.0 [INFO] [stderr] Checking rust-solutions v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/linked_list/second.rs:11:27 [INFO] [stderr] | [INFO] [stderr] 11 | pub type Link = Option<(Box>)>; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::List` [INFO] [stderr] --> src/linked_list/second.rs:167:9 [INFO] [stderr] | [INFO] [stderr] 167 | use super::List; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/linked_list/third.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/linked_list/fifth.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/linked_list/refcell_singly.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/stack.rs:115:9 [INFO] [stderr] | [INFO] [stderr] 115 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/binary_search_tree.rs:124:9 [INFO] [stderr] | [INFO] [stderr] 124 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Ord`, `Ordering` [INFO] [stderr] --> src/graph.rs:1:16 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp::{Ord, Ordering}; [INFO] [stderr] | ^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/graph.rs:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/binary_tree.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/binary_tree_refcell.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/binary_search_tree_refcell.rs:128:9 [INFO] [stderr] | [INFO] [stderr] 128 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around type [INFO] [stderr] --> src/linked_list/second.rs:11:27 [INFO] [stderr] | [INFO] [stderr] 11 | pub type Link = Option<(Box>)>; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/linked_list/third.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashSet` [INFO] [stderr] --> src/linked_list/fifth.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::HashSet; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Ord`, `Ordering` [INFO] [stderr] --> src/graph.rs:1:16 [INFO] [stderr] | [INFO] [stderr] 1 | use std::cmp::{Ord, Ordering}; [INFO] [stderr] | ^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/second.rs:67:5 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `into_iter` [INFO] [stderr] --> src/linked_list/second.rs:71:5 [INFO] [stderr] | [INFO] [stderr] 71 | pub fn into_iter(self) -> IntoIter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/linked_list/second.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter_mut` [INFO] [stderr] --> src/linked_list/second.rs:84:5 [INFO] [stderr] | [INFO] [stderr] 84 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push` [INFO] [stderr] --> src/linked_list/second.rs:90:5 [INFO] [stderr] | [INFO] [stderr] 90 | pub fn push(&mut self, elem: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `peek` [INFO] [stderr] --> src/linked_list/second.rs:119:5 [INFO] [stderr] | [INFO] [stderr] 119 | pub fn peek(&self) -> Option<&T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `peek_mut` [INFO] [stderr] --> src/linked_list/second.rs:123:5 [INFO] [stderr] | [INFO] [stderr] 123 | pub fn peek_mut(&mut self) -> Option<&mut T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/third.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/linked_list/third.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | pub fn append(&mut self, elem: T) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `tail` [INFO] [stderr] --> src/linked_list/third.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn tail(&self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `head` [INFO] [stderr] --> src/linked_list/third.rs:40:5 [INFO] [stderr] | [INFO] [stderr] 40 | pub fn head(&self) -> Option<&T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/linked_list/third.rs:107:5 [INFO] [stderr] | [INFO] [stderr] 107 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/fourth.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | fn new(elem: T) -> Rc> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/fourth.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push_front` [INFO] [stderr] --> src/linked_list/fourth.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | pub fn push_front(&mut self, elem: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `peek_front` [INFO] [stderr] --> src/linked_list/fourth.rs:76:5 [INFO] [stderr] | [INFO] [stderr] 76 | pub fn peek_front(&self) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `prev` [INFO] [stderr] --> src/linked_list/brandon.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | prev: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `tail` [INFO] [stderr] --> src/linked_list/brandon.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | fn tail(node: &NodeRef) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove` [INFO] [stderr] --> src/linked_list/brandon.rs:46:5 [INFO] [stderr] | [INFO] [stderr] 46 | fn remove(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/brandon.rs:64:5 [INFO] [stderr] | [INFO] [stderr] 64 | fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/linked_list/brandon.rs:68:5 [INFO] [stderr] | [INFO] [stderr] 68 | fn append(&mut self, new_value: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `tail` [INFO] [stderr] --> src/linked_list/brandon.rs:85:5 [INFO] [stderr] | [INFO] [stderr] 85 | fn tail(&self) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/linked_list/brandon.rs:96:5 [INFO] [stderr] | [INFO] [stderr] 96 | fn iter(&self) -> Iter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `list_has_duplicates` [INFO] [stderr] --> src/linked_list/brandon.rs:102:5 [INFO] [stderr] | [INFO] [stderr] 102 | fn list_has_duplicates(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove_duplicates` [INFO] [stderr] --> src/linked_list/brandon.rs:117:5 [INFO] [stderr] | [INFO] [stderr] 117 | fn remove_duplicates(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/linked_list/brandon.rs:228:4 [INFO] [stderr] | [INFO] [stderr] 228 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list/fifth.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push` [INFO] [stderr] --> src/linked_list/fifth.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn push(&mut self, elem: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/linked_list/fifth.rs:53:5 [INFO] [stderr] | [INFO] [stderr] 53 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 41 warnings emitted [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `ch4_p11_random_node` [INFO] [stderr] --> src/bin/ch4-p11_random-node.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | / use rand::{thread_rng, Rng}; [INFO] [stderr] 8 | | use std::fmt; [INFO] [stderr] 9 | | [INFO] [stderr] 10 | | type BareTree = Box>; [INFO] [stderr] ... | [INFO] [stderr] 204 | | assert!((1..10).contains(&v)); [INFO] [stderr] 205 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch4-p11_random-node.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: could not compile `rust-solutions`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0601]: `main` function not found in crate `ch5_p2_binary_to_string` [INFO] [stderr] --> src/bin/ch5-p2_binary-to-string.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | / use std::fmt::Write; [INFO] [stderr] 7 | | [INFO] [stderr] 8 | | fn get_binary_float(mut n: f32) -> String { [INFO] [stderr] 9 | | if n < 0.0 || n >= 1.0 { [INFO] [stderr] ... | [INFO] [stderr] 47 | | assert_eq!(get_binary_float(0.9999999999999), "ERROR"); [INFO] [stderr] 48 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch5-p2_binary-to-string.rs` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `partition` [INFO] [stderr] --> src/bin/ch2-p4_partition.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | fn partition(&mut self, partition_value: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `verify_partition` [INFO] [stderr] --> src/bin/ch2-p4_partition.rs:113:5 [INFO] [stderr] | [INFO] [stderr] 113 | fn verify_partition(&mut self, value: T) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/ch4-p6_successor.rs:82:9 [INFO] [stderr] | [INFO] [stderr] 82 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `ch4_p6_successor` [INFO] [stderr] --> src/bin/ch4-p6_successor.rs:9:1 [INFO] [stderr] | [INFO] [stderr] 9 | / use cracking::{RCBinarySearchTree as BinarySearchTree, RCTree as Tree}; [INFO] [stderr] 10 | | use std::rc::Rc; [INFO] [stderr] 11 | | [INFO] [stderr] 12 | | trait FindSuccessor { [INFO] [stderr] ... | [INFO] [stderr] 162 | | } [INFO] [stderr] 163 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch4-p6_successor.rs` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_one_away` [INFO] [stderr] --> src/bin/ch1-p5_one-away.rs:7:4 [INFO] [stderr] | [INFO] [stderr] 7 | fn is_one_away(s1: &str, s2: &str) -> bool { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] error: could not compile `rust-solutions`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:89:13 [INFO] [stderr] | [INFO] [stderr] 89 | let a: ThreeStacks = ThreeStacks::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/stack.rs:153:13 [INFO] [stderr] | [INFO] [stderr] 153 | let mut s: Stack = Stack::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: unused variable: `r` [INFO] [stderr] --> src/bin/ch4-p11_random-node.rs:91:24 [INFO] [stderr] | [INFO] [stderr] 91 | (Some(l), Some(r)) => { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 1 warning emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] warning: associated function is never used: `grow` [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:70:5 [INFO] [stderr] | [INFO] [stderr] 70 | fn grow(&mut self, min_cap: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] error: could not compile `rust-solutions`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:129:9 [INFO] [stderr] | [INFO] [stderr] 129 | s.push(1, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:136:9 [INFO] [stderr] | [INFO] [stderr] 136 | s.push(1, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:137:9 [INFO] [stderr] | [INFO] [stderr] 137 | s.push(2, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:138:9 [INFO] [stderr] | [INFO] [stderr] 138 | s.push(3, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:144:9 [INFO] [stderr] | [INFO] [stderr] 144 | s.push(1, 1).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:145:9 [INFO] [stderr] | [INFO] [stderr] 145 | s.push(2, 1).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | s.push(3, 1).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | s.push(1, 2).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:153:9 [INFO] [stderr] | [INFO] [stderr] 153 | s.push(2, 2).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | s.push(3, 2).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:165:9 [INFO] [stderr] | [INFO] [stderr] 165 | s.push(1, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:166:9 [INFO] [stderr] | [INFO] [stderr] 166 | s.push(2, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:167:9 [INFO] [stderr] | [INFO] [stderr] 167 | s.push(3, 0).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_err` that must be used [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:168:9 [INFO] [stderr] | [INFO] [stderr] 168 | s.push(4, 0).is_err(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is err, consider `.unwrap_err()` instead [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `delete_middle_node` [INFO] [stderr] --> src/bin/ch2-p3_delete-middle-node.rs:91:5 [INFO] [stderr] | [INFO] [stderr] 91 | fn delete_middle_node(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `list_has_duplicates` [INFO] [stderr] --> src/linked_list/brandon.rs:102:5 [INFO] [stderr] | [INFO] [stderr] 102 | fn list_has_duplicates(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/linked_list/brandon.rs:228:4 [INFO] [stderr] | [INFO] [stderr] 228 | fn main() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/ch7-p6_jigsaw.rs:335:9 [INFO] [stderr] | [INFO] [stderr] 335 | let mut p = Puzzle::new(2, 3); [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: associated function is never used: `rotate_counterclockwise` [INFO] [stderr] --> src/bin/ch7-p6_jigsaw.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | fn rotate_counterclockwise(self) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "504ad68b29460f46a99b08558b9785f85579e3f9c85ddbcb802b59b76d06af68"` [INFO] running `"docker" "rm" "-f" "504ad68b29460f46a99b08558b9785f85579e3f9c85ddbcb802b59b76d06af68"` [INFO] [stdout] 504ad68b29460f46a99b08558b9785f85579e3f9c85ddbcb802b59b76d06af68