[INFO] cloning repository https://github.com/modulitos/CtCI-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/modulitos/CtCI-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8bbaa49c3eca43a77cf1a2cea1b6f98071ad2c78 [INFO] checking modulitos/CtCI-rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modulitos/CtCI-rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/modulitos/CtCI-rust [INFO] finished tweaking git repo https://github.com/modulitos/CtCI-rust [INFO] tweaked toml for git repo https://github.com/modulitos/CtCI-rust written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/modulitos/CtCI-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getrandom v0.1.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 038ebec92b57cd8928c72ea41a1eeed95bbe35be927e04e03ac0760d10f1b17e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "038ebec92b57cd8928c72ea41a1eeed95bbe35be927e04e03ac0760d10f1b17e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "038ebec92b57cd8928c72ea41a1eeed95bbe35be927e04e03ac0760d10f1b17e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "038ebec92b57cd8928c72ea41a1eeed95bbe35be927e04e03ac0760d10f1b17e", kill_on_drop: false }` [INFO] [stdout] 038ebec92b57cd8928c72ea41a1eeed95bbe35be927e04e03ac0760d10f1b17e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7925626b0bd43251b7b8c7ac87ce36e8eb12cd7618eff08a754731a7d41aaa85 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7925626b0bd43251b7b8c7ac87ce36e8eb12cd7618eff08a754731a7d41aaa85", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking getrandom v0.1.7 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Compiling derive_more v0.15.0 [INFO] [stderr] Checking rust-solutions v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/linked_list/second.rs:11:27 [INFO] [stdout] | [INFO] [stdout] 11 | pub type Link = Option<(Box>)>; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::List` [INFO] [stdout] --> src/linked_list/second.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 167 | use super::List; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/linked_list/third.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/linked_list/fifth.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/linked_list/refcell_singly.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/stack.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/binary_search_tree.rs:124:9 [INFO] [stdout] | [INFO] [stdout] 124 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ord`, `Ordering` [INFO] [stdout] --> src/graph.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::{Ord, Ordering}; [INFO] [stdout] | ^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/graph.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/binary_tree.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/binary_tree_refcell.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/binary_search_tree_refcell.rs:128:9 [INFO] [stdout] | [INFO] [stdout] 128 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/linked_list/second.rs:11:27 [INFO] [stdout] | [INFO] [stdout] 11 | pub type Link = Option<(Box>)>; [INFO] [stdout] | ^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/linked_list/third.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/linked_list/fifth.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ord`, `Ordering` [INFO] [stdout] --> src/graph.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::{Ord, Ordering}; [INFO] [stdout] | ^^^ ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/second.rs:67:12 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `into_iter` [INFO] [stdout] --> src/linked_list/second.rs:71:12 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/linked_list/second.rs:76:12 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter_mut` [INFO] [stdout] --> src/linked_list/second.rs:84:12 [INFO] [stdout] | [INFO] [stdout] 84 | pub fn iter_mut(&mut self) -> IterMut<'_, T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/linked_list/second.rs:90:12 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn push(&mut self, elem: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek` [INFO] [stdout] --> src/linked_list/second.rs:119:12 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek_mut` [INFO] [stdout] --> src/linked_list/second.rs:123:12 [INFO] [stdout] | [INFO] [stdout] 123 | pub fn peek_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/third.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `append` [INFO] [stdout] --> src/linked_list/third.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn append(&mut self, elem: T) -> Self { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tail` [INFO] [stdout] --> src/linked_list/third.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn tail(&self) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `head` [INFO] [stdout] --> src/linked_list/third.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 40 | pub fn head(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/linked_list/third.rs:107:12 [INFO] [stdout] | [INFO] [stdout] 107 | pub fn iter(&self) -> Iter<'_, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/fourth.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | fn new(elem: T) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/fourth.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push_front` [INFO] [stdout] --> src/linked_list/fourth.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn push_front(&mut self, elem: T) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `peek_front` [INFO] [stdout] --> src/linked_list/fourth.rs:76:12 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn peek_front(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `prev` [INFO] [stdout] --> src/linked_list/brandon.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | prev: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tail` [INFO] [stdout] --> src/linked_list/brandon.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | fn tail(node: &NodeRef) -> Option> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/linked_list/brandon.rs:46:8 [INFO] [stdout] | [INFO] [stdout] 46 | fn remove(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/brandon.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `append` [INFO] [stdout] --> src/linked_list/brandon.rs:68:8 [INFO] [stdout] | [INFO] [stdout] 68 | fn append(&mut self, new_value: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `tail` [INFO] [stdout] --> src/linked_list/brandon.rs:85:8 [INFO] [stdout] | [INFO] [stdout] 85 | fn tail(&self) -> Option> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/linked_list/brandon.rs:96:8 [INFO] [stdout] | [INFO] [stdout] 96 | fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `list_has_duplicates` [INFO] [stdout] --> src/linked_list/brandon.rs:102:8 [INFO] [stdout] | [INFO] [stdout] 102 | fn list_has_duplicates(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove_duplicates` [INFO] [stdout] --> src/linked_list/brandon.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | fn remove_duplicates(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/linked_list/brandon.rs:228:4 [INFO] [stdout] | [INFO] [stdout] 228 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/linked_list/fifth.rs:24:12 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/linked_list/fifth.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn push(&mut self, elem: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> src/linked_list/fifth.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 53 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 41 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/bin/ch4-p9_bst-sequences.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `ch4_p9_bst_sequences` [INFO] [stdout] --> src/bin/ch4-p9_bst-sequences.rs:19:1 [INFO] [stdout] | [INFO] [stdout] 19 | / use cracking::{BinarySearchTree, Tree}; [INFO] [stdout] 20 | | use std::collections::HashSet; [INFO] [stdout] 21 | | [INFO] [stdout] 22 | | fn get_all_arrays(bst: BinarySearchTree) -> HashSet> [INFO] [stdout] ... | [INFO] [stdout] 252 | | } [INFO] [stdout] 253 | | } [INFO] [stdout] | |_^ consider adding a `main` function to `src/bin/ch4-p9_bst-sequences.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/stack.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | let mut s: Stack = Stack::new(); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `list_has_duplicates` [INFO] [stdout] --> src/linked_list/brandon.rs:102:8 [INFO] [stdout] | [INFO] [stdout] 102 | fn list_has_duplicates(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `main` [INFO] [stdout] --> src/linked_list/brandon.rs:228:4 [INFO] [stdout] | [INFO] [stdout] 228 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [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] [stdout] warning: function is never used: `urlify_2` [INFO] [stdout] --> src/bin/ch1-p2_urlify.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn urlify_2(url: &str) -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `is_rotation` [INFO] [stdout] --> src/bin/ch1-p9_string-rotation.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn is_rotation(s1: &str, s2: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `urlify_2` [INFO] [stdout] --> src/bin/ch1-p2_urlify.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn urlify_2(url: &str) -> String { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `from` [INFO] [stdout] --> src/bin/ch7-p2_call-center.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | from: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `delete_middle_node` [INFO] [stdout] --> src/bin/ch2-p3_delete-middle-node.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 91 | fn delete_middle_node(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "7925626b0bd43251b7b8c7ac87ce36e8eb12cd7618eff08a754731a7d41aaa85", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7925626b0bd43251b7b8c7ac87ce36e8eb12cd7618eff08a754731a7d41aaa85", kill_on_drop: false }` [INFO] [stdout] 7925626b0bd43251b7b8c7ac87ce36e8eb12cd7618eff08a754731a7d41aaa85