[INFO] cloning repository https://github.com/intelliacademy/rust-algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/intelliacademy/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintelliacademy%2Frust-algorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintelliacademy%2Frust-algorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 096792358c0c74b48e53168ee290649d2fc9d017 [INFO] testing intelliacademy/rust-algorithms against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintelliacademy%2Frust-algorithms" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/intelliacademy/rust-algorithms [INFO] finished tweaking git repo https://github.com/intelliacademy/rust-algorithms [INFO] tweaked toml for git repo https://github.com/intelliacademy/rust-algorithms written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/intelliacademy/rust-algorithms on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/intelliacademy/rust-algorithms already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: /workspace/builds/worker-3-tc1/source/Cargo.toml: unused manifest key: workspace.default-run [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 59489c4896090d5f911459220e8a919bb42275abc6f1f6cd6500a9b039e6452f [INFO] running `Command { std: "docker" "start" "-a" "59489c4896090d5f911459220e8a919bb42275abc6f1f6cd6500a9b039e6452f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "59489c4896090d5f911459220e8a919bb42275abc6f1f6cd6500a9b039e6452f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59489c4896090d5f911459220e8a919bb42275abc6f1f6cd6500a9b039e6452f", kill_on_drop: false }` [INFO] [stdout] 59489c4896090d5f911459220e8a919bb42275abc6f1f6cd6500a9b039e6452f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1721f9157676804babb045ac03aea9ab3cf0d83ba0c886657bf7b1f8b821f5dc [INFO] running `Command { std: "docker" "start" "-a" "1721f9157676804babb045ac03aea9ab3cf0d83ba0c886657bf7b1f8b821f5dc", kill_on_drop: false }` [INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: workspace.default-run [INFO] [stderr] Compiling dynamic-programming v0.1.0 (/opt/rustwide/workdir/dynamic-programming) [INFO] [stderr] Compiling bst v0.1.0 (/opt/rustwide/workdir/bst) [INFO] [stderr] Compiling sorting v0.1.0 (/opt/rustwide/workdir/sorting) [INFO] [stderr] Compiling recursive v0.1.0 (/opt/rustwide/workdir/recursive) [INFO] [stderr] Compiling mst v0.1.0 (/opt/rustwide/workdir/mst) [INFO] [stderr] Compiling graphs v0.1.0 (/opt/rustwide/workdir/graphs) [INFO] [stderr] Compiling list v0.1.0 (/opt/rustwide/workdir/list) [INFO] [stderr] Compiling intro v0.1.0 (/opt/rustwide/workdir/intro) [INFO] [stderr] Compiling stack v0.1.0 (/opt/rustwide/workdir/stack) [INFO] [stdout] warning: function `sort_by_bubble` is never used [INFO] [stdout] --> sorting/src/bubble/mod.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn sort_by_bubble(arr: &mut Vec) -> &Vec [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sort_by_merge` is never used [INFO] [stdout] --> sorting/src/merge/mod.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn sort_by_merge(arr: &mut Vec) -> Vec [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `merge` is never used [INFO] [stdout] --> sorting/src/merge/mod.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn merge(arr: &mut [T], mid: usize) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sort_by_quick` is never used [INFO] [stdout] --> sorting/src/quick/mod.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn sort_by_quick(arr: &mut Vec) -> &Vec [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `partition` is never used [INFO] [stdout] --> sorting/src/quick/mod.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn partition(arr: &mut Vec) -> usize [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> dynamic-programming/src/lcs/mod.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut result: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_triangle` is never used [INFO] [stdout] --> recursive/src/stoa/mod.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn sum_triangle(arr: &Vec>, i: usize, j: usize) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sort_by_selection` is never used [INFO] [stdout] --> sorting/src/selection/mod.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn sort_by_selection(arr: &mut Vec) -> &Vec [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> dynamic-programming/src/lcs/mod.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut result: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> dynamic-programming/src/lcs/mod.rs:23:10 [INFO] [stdout] | [INFO] [stdout] 23 | let (mut i, mut j) = (len_a, len_b); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> dynamic-programming/src/lcs/mod.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 23 | let (mut i, mut j) = (len_a, len_b); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fib` is never used [INFO] [stdout] --> dynamic-programming/src/fibonacci/mod.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn fib(value: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `lcs_resolve` is never used [INFO] [stdout] --> dynamic-programming/src/lcs/mod.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn lcs_resolve(a: &str, b: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> bst/src/sbst/mod.rs:101:24 [INFO] [stdout] | [INFO] [stdout] 101 | pub fn ceil(&self, value: &T) -> Option<&T> [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> bst/src/sbst/mod.rs:108:25 [INFO] [stdout] | [INFO] [stdout] 108 | pub fn floor(&self, value: &T) -> Option<&T> [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SBST` is never constructed [INFO] [stdout] --> bst/src/sbst/mod.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct SBST [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> bst/src/sbst/mod.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 24 | / impl SBST [INFO] [stdout] 25 | | where [INFO] [stdout] 26 | | T: Ord, [INFO] [stdout] | |___________- associated items in this implementation [INFO] [stdout] 27 | { [INFO] [stdout] 28 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn insert(&mut self, value: T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn search(&self, value: T) -> bool [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 81 | pub fn min(&self) -> Option<&T> [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 91 | pub fn max(&self) -> Option<&T> [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 101 | pub fn ceil(&self, value: &T) -> Option<&T> [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn floor(&self, value: &T) -> Option<&T> [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0506]: cannot assign to `current` because it is borrowed [INFO] [stdout] --> list/src/linked/mod.rs:58:25 [INFO] [stdout] | [INFO] [stdout] 51 | while let Some(ref mut n) = current { [INFO] [stdout] | --------- `current` is borrowed here [INFO] [stdout] ... [INFO] [stdout] 58 | current = n.next.as_mut(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | `current` is assigned to here but it was already borrowed [INFO] [stdout] | borrow later used here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0506`. [INFO] [stdout] [INFO] [stderr] error: could not compile `list` (bin "list") due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: struct `Queue` is never constructed [INFO] [stdout] --> stack/src/stack/mod.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Queue { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `enqueue`, `dequeue`, `peek`, `is_empty`, and `len` are never used [INFO] [stdout] --> stack/src/stack/mod.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 7 | impl Queue { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 8 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn enqueue(&mut self, item: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn dequeue(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn peek(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1721f9157676804babb045ac03aea9ab3cf0d83ba0c886657bf7b1f8b821f5dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1721f9157676804babb045ac03aea9ab3cf0d83ba0c886657bf7b1f8b821f5dc", kill_on_drop: false }` [INFO] [stdout] 1721f9157676804babb045ac03aea9ab3cf0d83ba0c886657bf7b1f8b821f5dc