[INFO] cloning repository https://github.com/MahmoudFarouq/maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MahmoudFarouq/maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahmoudFarouq%2Fmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahmoudFarouq%2Fmaze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54a4db24325afe28f867ff8eba2dd52f02d1425d
[INFO] checking MahmoudFarouq/maze against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahmoudFarouq%2Fmaze" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MahmoudFarouq/maze
[INFO] finished tweaking git repo https://github.com/MahmoudFarouq/maze
[INFO] tweaked toml for git repo https://github.com/MahmoudFarouq/maze written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MahmoudFarouq/maze on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MahmoudFarouq/maze 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e886dc101596e698eca4b19aa348d46e32a731188a29cd97edec9e16f40c472e
[INFO] running `Command { std: "docker" "start" "-a" "e886dc101596e698eca4b19aa348d46e32a731188a29cd97edec9e16f40c472e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e886dc101596e698eca4b19aa348d46e32a731188a29cd97edec9e16f40c472e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e886dc101596e698eca4b19aa348d46e32a731188a29cd97edec9e16f40c472e", kill_on_drop: false }`
[INFO] [stdout] e886dc101596e698eca4b19aa348d46e32a731188a29cd97edec9e16f40c472e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 006bfe3721dbb9589533f2bd0690e0da100dc48461fbba28ab19c1e87ed3466c
[INFO] running `Command { std: "docker" "start" "-a" "006bfe3721dbb9589533f2bd0690e0da100dc48461fbba28ab19c1e87ed3466c", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `crate::dfs::*`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::dfs::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rand_kruskal::*`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::rand_kruskal::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::dfs::*`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::dfs::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::rand_kruskal::*`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::rand_kruskal::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DepthFirst` is never constructed
[INFO] [stdout]  --> src/dfs.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DepthFirst {
[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 function `new` is never used
[INFO] [stdout]   --> src/dfs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl DepthFirst {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(full_length: usize, start_idx: u32, drawer: Drawer) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RandomizedKruskal` is never constructed
[INFO] [stdout]  --> src/rand_kruskal.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct RandomizedKruskal {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find_set`, `connected`, `union`, and `next_candidate_arc` are never used
[INFO] [stdout]   --> src/rand_kruskal.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl RandomizedKruskal {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(full_length: usize, drawer: Drawer) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn find_set(&self, node_idx: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn connected(&self, left_idx: usize, right_idx: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn union(&mut self, left_idx: usize, right_idx: usize) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn next_candidate_arc(&self) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DepthFirst` is never constructed
[INFO] [stdout]  --> src/dfs.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct DepthFirst {
[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 function `new` is never used
[INFO] [stdout]   --> src/dfs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl DepthFirst {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(full_length: usize, start_idx: u32, drawer: Drawer) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RandomizedKruskal` is never constructed
[INFO] [stdout]  --> src/rand_kruskal.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct RandomizedKruskal {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `find_set`, `connected`, `union`, and `next_candidate_arc` are never used
[INFO] [stdout]   --> src/rand_kruskal.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl RandomizedKruskal {
[INFO] [stdout]    | ---------------------- associated items in this implementation
[INFO] [stdout] 14 |     pub fn new(full_length: usize, drawer: Drawer) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn find_set(&self, node_idx: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn connected(&self, left_idx: usize, right_idx: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn union(&mut self, left_idx: usize, right_idx: usize) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn next_candidate_arc(&self) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.95s
[INFO] running `Command { std: "docker" "inspect" "006bfe3721dbb9589533f2bd0690e0da100dc48461fbba28ab19c1e87ed3466c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "006bfe3721dbb9589533f2bd0690e0da100dc48461fbba28ab19c1e87ed3466c", kill_on_drop: false }`
[INFO] [stdout] 006bfe3721dbb9589533f2bd0690e0da100dc48461fbba28ab19c1e87ed3466c
