[INFO] cloning repository https://github.com/krypton-0x00/data-structures-in-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krypton-0x00/data-structures-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrypton-0x00%2Fdata-structures-in-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrypton-0x00%2Fdata-structures-in-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4e4d459383eccdade19b401c7f609b9d124e1dd3 [INFO] checking krypton-0x00/data-structures-in-rust against master#0c478fdfe138a8b09744798c85fe2be657768b00 for pr-139419 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrypton-0x00%2Fdata-structures-in-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/krypton-0x00/data-structures-in-rust on toolchain 0c478fdfe138a8b09744798c85fe2be657768b00 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c478fdfe138a8b09744798c85fe2be657768b00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/krypton-0x00/data-structures-in-rust [INFO] finished tweaking git repo https://github.com/krypton-0x00/data-structures-in-rust [INFO] tweaked toml for git repo https://github.com/krypton-0x00/data-structures-in-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/krypton-0x00/data-structures-in-rust 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" "+0c478fdfe138a8b09744798c85fe2be657768b00" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c478fdfe138a8b09744798c85fe2be657768b00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 53b4c51c84c2b5077e5467c2081aba04d4923d427de781891d8854cc191f2cd9 [INFO] running `Command { std: "docker" "start" "-a" "53b4c51c84c2b5077e5467c2081aba04d4923d427de781891d8854cc191f2cd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "53b4c51c84c2b5077e5467c2081aba04d4923d427de781891d8854cc191f2cd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "53b4c51c84c2b5077e5467c2081aba04d4923d427de781891d8854cc191f2cd9", kill_on_drop: false }` [INFO] [stdout] 53b4c51c84c2b5077e5467c2081aba04d4923d427de781891d8854cc191f2cd9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+0c478fdfe138a8b09744798c85fe2be657768b00" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89e4e26f67f8254d78b0ccc969c97c1b262a0e98ae598493bfc37b04365ec115 [INFO] running `Command { std: "docker" "start" "-a" "89e4e26f67f8254d78b0ccc969c97c1b262a0e98ae598493bfc37b04365ec115", kill_on_drop: false }` [INFO] [stderr] Checking dsa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ll` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut ll: LinkedList = linked_list::LinkedList::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ll` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/main.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let mut s1: Stack = Stack::new(vec![1, 2, 3, 4]); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ll` [INFO] [stdout] --> src/main.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut ll: LinkedList = linked_list::LinkedList::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ll` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `q1` [INFO] [stdout] --> src/main.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut q1: Queue = Queue::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_q1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/main.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | let mut s1: Stack = Stack::new(vec![1, 2, 3, 4]); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `q1` [INFO] [stdout] --> src/main.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut q1: Queue = Queue::new(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_q1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut ll: LinkedList = linked_list::LinkedList::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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut ll: LinkedList = linked_list::LinkedList::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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut s1: Stack = Stack::new(vec![1, 2, 3, 4]); [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] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut q1: Queue = Queue::new(); [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] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut s1: Stack = Stack::new(vec![1, 2, 3, 4]); [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] --> src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let mut q1: Queue = Queue::new(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data` and `next` are never read [INFO] [stdout] --> src/linked_list.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 7 | data: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] 8 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/linked_list.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct LinkedList { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 12 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push`, `pop`, `peak`, and `print` are never used [INFO] [stdout] --> src/linked_list.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl LinkedList { [INFO] [stdout] | --------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn push(&mut self, value: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn pop(&mut self) -> Option [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn peak(&self) -> Option [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn print(&self) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data` and `next` are never read [INFO] [stdout] --> src/linked_list.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 7 | data: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] 8 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/linked_list.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct LinkedList { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 12 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `items` is never read [INFO] [stdout] --> src/queue.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Queue { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 5 | items: VecDeque, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Queue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push`, `pop`, `peak`, and `print` are never used [INFO] [stdout] --> src/linked_list.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl LinkedList { [INFO] [stdout] | --------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn push(&mut self, value: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn pop(&mut self) -> Option [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn peak(&self) -> Option [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn print(&self) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `items` is never read [INFO] [stdout] --> src/queue.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct Queue { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 5 | items: VecDeque, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Queue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `enqueue`, `dequeue`, `is_empty`, `peak`, and `size` are never used [INFO] [stdout] --> src/queue.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Queue { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn enqueue(&mut self, item: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | pub fn dequeue(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn peak(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `enqueue`, `dequeue`, `is_empty`, `peak`, and `size` are never used [INFO] [stdout] --> src/queue.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Queue { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn enqueue(&mut self, item: T) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | pub fn dequeue(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 20 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn peak(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `items` is never read [INFO] [stdout] --> src/stack.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Stack { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 3 | items: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Stack` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `items` is never read [INFO] [stdout] --> src/stack.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub struct Stack { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 3 | items: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Stack` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push`, `pop`, `peak`, `is_empty`, and `size` are never used [INFO] [stdout] --> src/stack.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Stack { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn push(&mut self, item: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn pop(&mut self) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn peak(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push`, `pop`, `peak`, `is_empty`, and `size` are never used [INFO] [stdout] --> src/stack.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 6 | impl Stack { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn push(&mut self, item: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn pop(&mut self) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn peak(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "89e4e26f67f8254d78b0ccc969c97c1b262a0e98ae598493bfc37b04365ec115", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89e4e26f67f8254d78b0ccc969c97c1b262a0e98ae598493bfc37b04365ec115", kill_on_drop: false }` [INFO] [stdout] 89e4e26f67f8254d78b0ccc969c97c1b262a0e98ae598493bfc37b04365ec115