[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#9ff4d07208097950831ed4ea9d76feb1eafc8baa for pr-69340 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2FCtCI-rust" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modulitos/CtCI-rust on toolchain 9ff4d07208097950831ed4ea9d76feb1eafc8baa [INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "read-manifest" "--manifest-path" "Cargo.toml"` [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-10/source/Cargo.toml [INFO] crate git repo https://github.com/modulitos/CtCI-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 01f2d5c82bbabb58a3dd5bad58f8676e93b7411e620f902b18f3a2ae43114c4c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "01f2d5c82bbabb58a3dd5bad58f8676e93b7411e620f902b18f3a2ae43114c4c"` [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking getrandom v0.1.7 [INFO] [stderr] Compiling regex v1.3.1 [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] [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: 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: `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/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/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 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: `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: 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: method 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: unused import: `Node` [INFO] [stderr] --> src/bin/ch2-p7_check-intersection.rs:11:48 [INFO] [stderr] | [INFO] [stderr] 11 | use cracking::{SinglyLinkedList as LinkedList, Node}; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::cell::RefCell` [INFO] [stderr] --> src/bin/ch2-p7_check-intersection.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use std::cell::RefCell; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/ch2-p7_check-intersection.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/bin/ch1-p4_palindrom-permutation.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 30 | if let Some(value) = map.get(&c) { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 31 | map.insert(c, value + 1); [INFO] [stderr] | ^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `ch2_p7_check_intersection` [INFO] [stderr] --> src/bin/ch2-p7_check-intersection.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | / extern crate cracking; [INFO] [stderr] 11 | | use cracking::{SinglyLinkedList as LinkedList, Node}; [INFO] [stderr] 12 | | [INFO] [stderr] 13 | | use std::rc::Rc; [INFO] [stderr] ... | [INFO] [stderr] 145 | | } [INFO] [stderr] 146 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch2-p7_check-intersection.rs` [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 84 | 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 `ch3_p1_three_in_one` [INFO] [stderr] --> src/bin/ch3-p1_three-in-one.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | / use std::boxed::Box; [INFO] [stderr] 4 | | use std::cmp; [INFO] [stderr] 5 | | [INFO] [stderr] 6 | | type Node = Option; [INFO] [stderr] ... | [INFO] [stderr] 173 | | } [INFO] [stderr] 174 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch3-p1_three-in-one.rs` [INFO] [stderr] [INFO] [stderr] warning: unused import: `BTreeNode as Node` [INFO] [stderr] --> src/bin/ch4-p12_paths-with-sum.rs:11:31 [INFO] [stderr] | [INFO] [stderr] 11 | use cracking::{BTree as Tree, BTreeNode as Node}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [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: 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 `ch4_p12_paths_with_sum` [INFO] [stderr] --> src/bin/ch4-p12_paths-with-sum.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | / use cracking::{BTree as Tree, BTreeNode as Node}; [INFO] [stderr] 12 | | use std::collections::HashMap; [INFO] [stderr] 13 | | [INFO] [stderr] 14 | | // Counts paths adding to the sum, starting at the given node: [INFO] [stderr] ... | [INFO] [stderr] 153 | | assert_eq!(count_paths_optimized(&node_fixture, 8), 3); [INFO] [stderr] 154 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch4-p12_paths-with-sum.rs` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/bin/ch1-p4_palindrom-permutation.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 30 | if let Some(value) = map.get(&c) { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 31 | map.insert(c, value + 1); [INFO] [stderr] | ^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [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] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/ch2-p6_check-palindrome.rs:65:9 [INFO] [stderr] | [INFO] [stderr] 65 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/bin/ch4-p1_route-between-nodes.rs:68:9 [INFO] [stderr] | [INFO] [stderr] 68 | 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_p1_route_between_nodes` [INFO] [stderr] --> src/bin/ch4-p1_route-between-nodes.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | / use std::collections::HashSet; [INFO] [stderr] 5 | | use std::collections::VecDeque; [INFO] [stderr] 6 | | [INFO] [stderr] 7 | | struct ASimpleGraph { [INFO] [stderr] ... | [INFO] [stderr] 110 | | } [INFO] [stderr] 111 | | } [INFO] [stderr] | |_^ consider adding a `main` function to `src/bin/ch4-p1_route-between-nodes.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] warning: cannot borrow `map` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/bin/ch1-p3_check-permutation.rs:15:13 [INFO] [stderr] | [INFO] [stderr] 14 | if let Some(count) = map.get(&c) { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 15 | map.insert(c, count + 1); [INFO] [stderr] | ^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [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: method 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] error: build failed [INFO] running `"docker" "inspect" "01f2d5c82bbabb58a3dd5bad58f8676e93b7411e620f902b18f3a2ae43114c4c"` [INFO] running `"docker" "rm" "-f" "01f2d5c82bbabb58a3dd5bad58f8676e93b7411e620f902b18f3a2ae43114c4c"` [INFO] [stdout] 01f2d5c82bbabb58a3dd5bad58f8676e93b7411e620f902b18f3a2ae43114c4c