[INFO] fetching crate algorithms_fourth 0.1.5...
[INFO] checking algorithms_fourth-0.1.5 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate algorithms_fourth 0.1.5 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate algorithms_fourth 0.1.5 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algorithms_fourth 0.1.5
[INFO] finished tweaking crates.io crate algorithms_fourth 0.1.5
[INFO] tweaked toml for crates.io crate algorithms_fourth 0.1.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate algorithms_fourth 0.1.5 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" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba7008a1ee06432e0daddfe4cf9d9c0342584fbd2f671f9f15065de589f50e54
[INFO] running `Command { std: "docker" "start" "-a" "ba7008a1ee06432e0daddfe4cf9d9c0342584fbd2f671f9f15065de589f50e54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba7008a1ee06432e0daddfe4cf9d9c0342584fbd2f671f9f15065de589f50e54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba7008a1ee06432e0daddfe4cf9d9c0342584fbd2f671f9f15065de589f50e54", kill_on_drop: false }`
[INFO] [stdout] ba7008a1ee06432e0daddfe4cf9d9c0342584fbd2f671f9f15065de589f50e54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f00b84ed42ffe4bd517d32039849127ec403315d27c3a045622768229e35e56
[INFO] running `Command { std: "docker" "start" "-a" "5f00b84ed42ffe4bd517d32039849127ec403315d27c3a045622768229e35e56", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algorithms_fourth v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]    --> src/search/linear_probing_hash.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |     use rand::seq::SliceRandom;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::search::ST`
[INFO] [stdout]    --> src/search/linear_probing_hash.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |     use crate::search::ST;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::LinearProbingHashST`
[INFO] [stdout]    --> src/search/linear_probing_hash.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use super::LinearProbingHashST;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/graph/connect.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |             connect::{self, Connect},
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search/sequential.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     let mut p = first;
[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: methods `edge_count` and `print_dot` are never used
[INFO] [stdout]   --> src/graph.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn edge_count(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `bfs`, and `print_dot` are never used
[INFO] [stdout]   --> src/graph/breadth_first_search.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl BreadthFirstSearch {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(g: &Graph, s: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn bfs(&mut self, g: &Graph, s: usize) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_dot` is never used
[INFO] [stdout]   --> src/graph/connect.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Connect {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `dfs`, and `print_dot` are never used
[INFO] [stdout]   --> src/graph/depth_first_search.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl DepthFirstSearch {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(g: &Graph, s: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn dfs(&mut self, g: &Graph, v: usize) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search/sequential.rs:58:25
[INFO] [stdout]    |
[INFO] [stdout] 58 |                     let mut p = first;
[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: methods `edge_count` and `print_dot` are never used
[INFO] [stdout]   --> src/graph.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Graph {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn edge_count(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_dot` is never used
[INFO] [stdout]   --> src/graph/breadth_first_search.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl BreadthFirstSearch {
[INFO] [stdout]    | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_dot` is never used
[INFO] [stdout]   --> src/graph/connect.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Connect {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_dot` is never used
[INFO] [stdout]   --> src/graph/depth_first_search.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl DepthFirstSearch {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn print_dot(&self, path: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "5f00b84ed42ffe4bd517d32039849127ec403315d27c3a045622768229e35e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f00b84ed42ffe4bd517d32039849127ec403315d27c3a045622768229e35e56", kill_on_drop: false }`
[INFO] [stdout] 5f00b84ed42ffe4bd517d32039849127ec403315d27c3a045622768229e35e56
