[INFO] fetching crate graph-algorithms 0.1.3...
[INFO] testing graph-algorithms-0.1.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate graph-algorithms 0.1.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate graph-algorithms 0.1.3
[INFO] finished tweaking crates.io crate graph-algorithms 0.1.3
[INFO] tweaked toml for crates.io crate graph-algorithms 0.1.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate graph-algorithms 0.1.3 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate graph-algorithms 0.1.3 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bdc8d053b74d9747fbc8b7081df36a173ac561c0caed51ca7d7d0022b18d65f
[INFO] running `Command { std: "docker" "start" "-a" "4bdc8d053b74d9747fbc8b7081df36a173ac561c0caed51ca7d7d0022b18d65f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bdc8d053b74d9747fbc8b7081df36a173ac561c0caed51ca7d7d0022b18d65f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bdc8d053b74d9747fbc8b7081df36a173ac561c0caed51ca7d7d0022b18d65f", kill_on_drop: false }`
[INFO] [stdout] 4bdc8d053b74d9747fbc8b7081df36a173ac561c0caed51ca7d7d0022b18d65f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dbe310a730d2de9f9ca3b23dcd561426f907d9052dd3ecca6307daf306312e5
[INFO] running `Command { std: "docker" "start" "-a" "3dbe310a730d2de9f9ca3b23dcd561426f907d9052dd3ecca6307daf306312e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling graph-algorithms v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/list_of_algorithms/bellmanford.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct Node {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vertices` is never read
[INFO] [stdout]   --> src/list_of_algorithms/dfs.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub struct Graph {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |         pub vertices: usize,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vertices` is never read
[INFO] [stdout]   --> src/list_of_algorithms/bfs.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub struct Graph {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |         pub vertices: usize,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "3dbe310a730d2de9f9ca3b23dcd561426f907d9052dd3ecca6307daf306312e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dbe310a730d2de9f9ca3b23dcd561426f907d9052dd3ecca6307daf306312e5", kill_on_drop: false }`
[INFO] [stdout] 3dbe310a730d2de9f9ca3b23dcd561426f907d9052dd3ecca6307daf306312e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ff9addf93451f861b6631ee5911d2fe81f3cebc8e2a4ada1e61a3d7774344e2
[INFO] running `Command { std: "docker" "start" "-a" "5ff9addf93451f861b6631ee5911d2fe81f3cebc8e2a4ada1e61a3d7774344e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling graph-algorithms v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/list_of_algorithms/bellmanford.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct Node {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vertices` is never read
[INFO] [stdout]   --> src/list_of_algorithms/dfs.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub struct Graph {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |         pub vertices: usize,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "5ff9addf93451f861b6631ee5911d2fe81f3cebc8e2a4ada1e61a3d7774344e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ff9addf93451f861b6631ee5911d2fe81f3cebc8e2a4ada1e61a3d7774344e2", kill_on_drop: false }`
[INFO] [stdout] 5ff9addf93451f861b6631ee5911d2fe81f3cebc8e2a4ada1e61a3d7774344e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd9833ca235cf42882a143e465fa3f8abe8ed5ff64b9dafc5b8f32bf899885cc
[INFO] running `Command { std: "docker" "start" "-a" "bd9833ca235cf42882a143e465fa3f8abe8ed5ff64b9dafc5b8f32bf899885cc", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Node` is never constructed
[INFO] [stdout] 
[INFO] [stderr]  --> src/list_of_algorithms/bellmanford.rs:9:12
[INFO] [stdout] running 15 tests
[INFO] [stderr]   |
[INFO] [stderr] 9 |     struct Node {
[INFO] [stderr]   |            ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `vertices` is never read
[INFO] [stderr]   --> src/list_of_algorithms/dfs.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub struct Graph {
[INFO] [stderr]    |                ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 14 |         pub vertices: usize,
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `graph-algorithms` (bin "graph-algorithms" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/graph_algorithms-6506d75f12c5b71e)
[INFO] [stdout] test list_of_algorithms::bellmanford::tests::test_bellman_ford_edge ... ok
[INFO] [stdout] test list_of_algorithms::bellmanford::tests::test_bellman_ford ... ok
[INFO] [stdout] test list_of_algorithms::bfs::tests::test_bfs ... ok
[INFO] [stdout] test list_of_algorithms::bfs::tests::test_add_edge ... ok
[INFO] [stdout] test list_of_algorithms::bfs::tests::test_new_graph ... ok
[INFO] [stdout] test list_of_algorithms::dijkstras::tests::test_single_vertex ... ok
[INFO] [stdout] test list_of_algorithms::dijkstras::tests::test_disconnected_graph ... ok
[INFO] [stdout] test list_of_algorithms::kosaraju::tests::test_kosaraju_algorithm1 ... ok
[INFO] [stdout] test list_of_algorithms::dfs::tests::test_dfs1 ... ok
[INFO] [stdout] test list_of_algorithms::kosaraju::tests::test_kosaraju_algorithm2 ... ok
[INFO] [stdout] test list_of_algorithms::kosaraju::tests::test_kosaraju_algorithm3 ... ok
[INFO] [stdout] test list_of_algorithms::dfs::tests::test_dfs ... ok
[INFO] [stdout] test list_of_algorithms::dijkstras::tests::test_dijkstra ... ok
[INFO] [stdout] test list_of_algorithms::bellmanford::tests::test_negative_cycle - should panic ... ok
[INFO] [stdout] test list_of_algorithms::dijkstras::tests::test_empty_graph - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd9833ca235cf42882a143e465fa3f8abe8ed5ff64b9dafc5b8f32bf899885cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd9833ca235cf42882a143e465fa3f8abe8ed5ff64b9dafc5b8f32bf899885cc", kill_on_drop: false }`
[INFO] [stdout] bd9833ca235cf42882a143e465fa3f8abe8ed5ff64b9dafc5b8f32bf899885cc