[INFO] cloning repository https://github.com/maxider/Graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxider/Graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxider%2FGraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxider%2FGraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b61b502d31432ac7c4ed244468ca85e1e66f0c31
[INFO] testing maxider/Graph against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxider%2FGraph" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maxider/Graph
[INFO] finished tweaking git repo https://github.com/maxider/Graph
[INFO] tweaked toml for git repo https://github.com/maxider/Graph written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maxider/Graph on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maxider/Graph 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab849c78cfc1acc1e5ba8fd822a831776b6636d33552980c57bc118fa66b23d5
[INFO] running `Command { std: "docker" "start" "-a" "ab849c78cfc1acc1e5ba8fd822a831776b6636d33552980c57bc118fa66b23d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab849c78cfc1acc1e5ba8fd822a831776b6636d33552980c57bc118fa66b23d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab849c78cfc1acc1e5ba8fd822a831776b6636d33552980c57bc118fa66b23d5", kill_on_drop: false }`
[INFO] [stdout] ab849c78cfc1acc1e5ba8fd822a831776b6636d33552980c57bc118fa66b23d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb007dbb174f12ad1a4c8d68457f0691fe88dd67ce0d57e2343d8d19cf8359da
[INFO] running `Command { std: "docker" "start" "-a" "bb007dbb174f12ad1a4c8d68457f0691fe88dd67ce0d57e2343d8d19cf8359da", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "bb007dbb174f12ad1a4c8d68457f0691fe88dd67ce0d57e2343d8d19cf8359da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb007dbb174f12ad1a4c8d68457f0691fe88dd67ce0d57e2343d8d19cf8359da", kill_on_drop: false }`
[INFO] [stdout] bb007dbb174f12ad1a4c8d68457f0691fe88dd67ce0d57e2343d8d19cf8359da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6802b94132c9113a31bc4b982424f95d0152efcbfb4003094eb05cf89f780cc8
[INFO] running `Command { std: "docker" "start" "-a" "6802b94132c9113a31bc4b982424f95d0152efcbfb4003094eb05cf89f780cc8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling page_size v0.6.0
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling criterion-plot v0.8.2
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]    Compiling clap v4.6.1
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.8.2
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 27.04s
[INFO] running `Command { std: "docker" "inspect" "6802b94132c9113a31bc4b982424f95d0152efcbfb4003094eb05cf89f780cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6802b94132c9113a31bc4b982424f95d0152efcbfb4003094eb05cf89f780cc8", kill_on_drop: false }`
[INFO] [stdout] 6802b94132c9113a31bc4b982424f95d0152efcbfb4003094eb05cf89f780cc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f6b6106f79806052dc516098a2abc3efa13c079ea38d2402803de0e987606ae
[INFO] running `Command { std: "docker" "start" "-a" "3f6b6106f79806052dc516098a2abc3efa13c079ea38d2402803de0e987606ae", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/graph-f02ec469d5094cc4)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test tests::test_compute_components_disconnected_vertices ... ok
[INFO] [stdout] test tests::test_bfs_all_vertices_visited ... ok
[INFO] [stdout] test tests::test_bfs_partial_visit ... ok
[INFO] [stdout] test tests::test_compute_components_empty_graph ... ok
[INFO] [stdout] test tests::test_compute_components_single_component ... ok
[INFO] [stdout] test tests::test_compute_components_single_vertex ... ok
[INFO] [stdout] test tests::test_cycle_graph ... ok
[INFO] [stdout] test tests::test_debug_print_simple ... ok
[INFO] [stdout] test tests::test_debug_print_single_vertex ... ok
[INFO] [stdout] test tests::test_dfs_partial_visit ... ok
[INFO] [stdout] test tests::test_dfs_all_vertices_visited ... ok
[INFO] [stdout] test tests::test_from_graph_string_simple ... ok
[INFO] [stdout] test tests::test_from_graph_string_single_vertex ... ok
[INFO] [stdout] test tests::test_from_graph_string_empty ... ok
[INFO] [stdout] test tests::test_from_weighted_graph_string ... ok
[INFO] [stdout] test tests::test_from_weighted_graph_string_undirected ... ok
[INFO] [stdout] test tests::test_invalid_edge_format ... ok
[INFO] [stdout] test tests::test_invalid_vertex_count ... ok
[INFO] [stdout] test tests::test_large_connected_component ... ok
[INFO] [stdout] test tests::test_multiple_edges_between_vertices ... ok
[INFO] [stdout] test tests::test_prim_all_vertices_included ... ok
[INFO] [stdout] test tests::test_prim_complex_graph ... ok
[INFO] [stdout] test tests::test_prim_disconnected_graph ... ok
[INFO] [stdout] test tests::test_prim_simple_connected_graph ... ok
[INFO] [stdout] test tests::test_prim_single_vertex ... ok
[INFO] [stdout] test tests::test_prim_square_graph ... ok
[INFO] [stdout] test tests::test_self_loop ... ok
[INFO] [stdout] test tests::test_prim_triangle_graph ... ok
[INFO] [stdout] test tests::test_undirected_edges ... ok
[INFO] [stdout] test tests::test_weighted_graph_components ... ok
[INFO] [stdout] test tests::test_weighted_graph_debug_print ... ok
[INFO] [stdout] test tests::test_invalid_weight ... ok
[INFO] [stdout] test tests::test_compute_components_multiple_components ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/graph-d7b6c678d7ba6c70)
[INFO] [stdout] test tests::test_missing_first_line ... ok
[INFO] [stdout] test tests::test_prim_empty_graph ... ok
[INFO] [stdout] test tests::test_prim_mst_forms_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests graph
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Graph::compute_components (line 343) ... FAILED
[INFO] [stdout] test src/lib.rs - Graph::bfs (line 385) ... FAILED
[INFO] [stdout] test src/lib.rs - Graph::debug_print (line 306) ... FAILED
[INFO] [stdout] test src/lib.rs - Graph::dfs (line 428) ... FAILED
[INFO] [stdout] test src/lib.rs - Graph::prim (line 472) ... FAILED
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/lib.rs - Graph::from_unweighted_graph_string (line 188) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Graph::compute_components (line 343) stdout ----
[INFO] [stdout] error[E0599]: no method named `compute_components` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:348:18
[INFO] [stdout]     |
[INFO] [stdout] 348 | assert_eq!(graph.compute_components(), 2);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^ method not found in `Result<Graph, GraphError>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `compute_components` exists on the type `Graph`
[INFO] [stdout]    --> src/lib.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     pub fn compute_components(&self) -> u32 {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Graph` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 348 | assert_eq!(graph.expect("REASON").compute_components(), 2);
[INFO] [stdout]     |                 +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Graph::bfs (line 385) stdout ----
[INFO] [stdout] error[E0599]: no method named `bfs` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:391:7
[INFO] [stdout]     |
[INFO] [stdout] 391 | graph.bfs(0, &mut visited);
[INFO] [stdout]     |       ^^^ method not found in `Result<Graph, GraphError>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `bfs` exists on the type `Graph`
[INFO] [stdout]    --> src/lib.rs:393:5
[INFO] [stdout]     |
[INFO] [stdout] 393 |     pub fn bfs(&self, start: usize, visited: &mut [bool]) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Graph` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 391 | graph.expect("REASON").bfs(0, &mut visited);
[INFO] [stdout]     |      +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Graph::debug_print (line 306) stdout ----
[INFO] [stdout] error[E0599]: no method named `debug_print` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:311:20
[INFO] [stdout]     |
[INFO] [stdout] 311 | let output = graph.debug_print();
[INFO] [stdout]     |                    ^^^^^^^^^^^ method not found in `Result<Graph, GraphError>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `debug_print` exists on the type `Graph`
[INFO] [stdout]    --> src/lib.rs:313:5
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn debug_print(&self) -> String {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Graph` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 311 | let output = graph.expect("REASON").debug_print();
[INFO] [stdout]     |                   +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Graph::dfs (line 428) stdout ----
[INFO] [stdout] error[E0599]: no method named `dfs` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:434:7
[INFO] [stdout]     |
[INFO] [stdout] 434 | graph.dfs(0, &mut visited);
[INFO] [stdout]     |       ^^^ method not found in `Result<Graph, GraphError>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `dfs` exists on the type `Graph`
[INFO] [stdout]    --> src/lib.rs:436:5
[INFO] [stdout]     |
[INFO] [stdout] 436 |     pub fn dfs(&self, start: usize, visited: &mut [bool]) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Graph` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 434 | graph.expect("REASON").dfs(0, &mut visited);
[INFO] [stdout]     |      +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Graph::prim (line 472) stdout ----
[INFO] [stdout] error[E0599]: no method named `prim` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]    --> src/lib.rs:477:17
[INFO] [stdout]     |
[INFO] [stdout] 477 | let mst = graph.prim();
[INFO] [stdout]     |                 ^^^^ method not found in `Result<Graph, GraphError>`
[INFO] [stdout]     |
[INFO] [stdout] note: the method `prim` exists on the type `Graph`
[INFO] [stdout]    --> src/lib.rs:479:5
[INFO] [stdout]     |
[INFO] [stdout] 479 |     pub fn prim(&self) -> Vec<Edge> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Graph` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 477 | let mst = graph.expect("REASON").prim();
[INFO] [stdout]     |                +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Graph::bfs (line 385)
[INFO] [stdout]     src/lib.rs - Graph::compute_components (line 343)
[INFO] [stdout]     src/lib.rs - Graph::debug_print (line 306)
[INFO] [stdout]     src/lib.rs - Graph::dfs (line 428)
[INFO] [stdout]     src/lib.rs - Graph::prim (line 472)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.82s; merged doctests compilation took 0.21s
[INFO] running `Command { std: "docker" "inspect" "3f6b6106f79806052dc516098a2abc3efa13c079ea38d2402803de0e987606ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f6b6106f79806052dc516098a2abc3efa13c079ea38d2402803de0e987606ae", kill_on_drop: false }`
[INFO] [stdout] 3f6b6106f79806052dc516098a2abc3efa13c079ea38d2402803de0e987606ae
