[INFO] fetching crate icentral-subgraph 0.1.0...
[INFO] testing icentral-subgraph-0.1.0 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate icentral-subgraph 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate icentral-subgraph 0.1.0
[INFO] finished tweaking crates.io crate icentral-subgraph 0.1.0
[INFO] tweaked toml for crates.io crate icentral-subgraph 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-subgraph 0.1.0 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-subgraph 0.1.0 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c62d759b4de04b15ca6cca407f959eef85d330c6af910d7c29454b72715d2457
[INFO] running `Command { std: "docker" "start" "-a" "c62d759b4de04b15ca6cca407f959eef85d330c6af910d7c29454b72715d2457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c62d759b4de04b15ca6cca407f959eef85d330c6af910d7c29454b72715d2457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62d759b4de04b15ca6cca407f959eef85d330c6af910d7c29454b72715d2457", kill_on_drop: false }`
[INFO] [stdout] c62d759b4de04b15ca6cca407f959eef85d330c6af910d7c29454b72715d2457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 16c298a98ab0c25b5e5330a9d2be5f8bbdf5323ddb8a21bf5fa348f279a930e2
[INFO] running `Command { std: "docker" "start" "-a" "16c298a98ab0c25b5e5330a9d2be5f8bbdf5323ddb8a21bf5fa348f279a930e2", kill_on_drop: false }`
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[INFO] [stderr]    Compiling icentral-conn-vertex-map v0.1.0
[INFO] [stderr]    Compiling icentral-sigmas v0.1.0
[INFO] [stderr]    Compiling icentral-edge v0.1.0
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[INFO] [stderr]    Compiling icentral-parents-map v0.1.0
[INFO] [stderr]    Compiling icentral-subgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/subgraph.rs:508:40
[INFO] [stdout]     |
[INFO] [stdout] 508 |             let v_n: NodeId = stack[i];;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_nodes`
[INFO] [stdout]    --> src/create.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let num_nodes = g.num_nodes();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_nodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut e1 = Edge::new(src,dst);
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/subgraph.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         s:     NodeId, 
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         stack: &mut Stack<NodeId>, 
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/subgraph.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         src:   NodeId, 
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst`
[INFO] [stdout]    --> src/subgraph.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         dst:   NodeId)
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]    --> src/subgraph.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |         src_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst_distance`
[INFO] [stdout]    --> src/subgraph.rs:614:9
[INFO] [stdout]     |
[INFO] [stdout] 614 |         dst_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/update_sigmas.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[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/update_sigmas.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/get_connected_component_sizes.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | /             self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout] 27 | |                 node, 
[INFO] [stdout] 28 | |                 &mut visit_markers, 
[INFO] [stdout] 29 | |                 &mut out_vec
[INFO] [stdout] 30 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let _ = self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/subgraph.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     delegate_to_neighbors_map!{}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 | /         self.maybe_update_all_sigmas(
[INFO] [stdout] 468 | |             v_n,
[INFO] [stdout] 469 | |             source,
[INFO] [stdout] 470 | |             tmp_subgraph_map,
[INFO] [stdout] 471 | |             tmp_conn_vertex_map
[INFO] [stdout] 472 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let _ = self.maybe_update_all_sigmas(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:577:13
[INFO] [stdout]     |
[INFO] [stdout] 577 | /             self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout] 578 | |                 v_n, 
[INFO] [stdout] 579 | |                 source, 
[INFO] [stdout] 580 | |                 stack, 
[INFO] [stdout] ...   |
[INFO] [stdout] 583 | |                 scores
[INFO] [stdout] 584 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 577 |             let _ = self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:631:9
[INFO] [stdout]     |
[INFO] [stdout] 631 | /         self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout] 632 | |             source,
[INFO] [stdout] 633 | |             &stack,
[INFO] [stdout] 634 | |             tmp_subgraph_map,
[INFO] [stdout] 635 | |             tmp_conn_vertex_map,
[INFO] [stdout] 636 | |             scores,
[INFO] [stdout] 637 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 631 |         let _ = self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:641:9
[INFO] [stdout]     |
[INFO] [stdout] 641 |         self.iteration2_update2();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 641 |         let _ = self.iteration2_update2();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:739:13
[INFO] [stdout]     |
[INFO] [stdout] 739 |             self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 739 |             let _ = self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "16c298a98ab0c25b5e5330a9d2be5f8bbdf5323ddb8a21bf5fa348f279a930e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c298a98ab0c25b5e5330a9d2be5f8bbdf5323ddb8a21bf5fa348f279a930e2", kill_on_drop: false }`
[INFO] [stdout] 16c298a98ab0c25b5e5330a9d2be5f8bbdf5323ddb8a21bf5fa348f279a930e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 51aaad2eb218fe14f935c4e5ab875cc532d3d258f950980e3bcfc1d838c6d896
[INFO] running `Command { std: "docker" "start" "-a" "51aaad2eb218fe14f935c4e5ab875cc532d3d258f950980e3bcfc1d838c6d896", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/subgraph.rs:508:40
[INFO] [stdout]     |
[INFO] [stdout] 508 |             let v_n: NodeId = stack[i];;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_nodes`
[INFO] [stdout]    --> src/create.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let num_nodes = g.num_nodes();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_nodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut e1 = Edge::new(src,dst);
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/subgraph.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         s:     NodeId, 
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         stack: &mut Stack<NodeId>, 
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/subgraph.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         src:   NodeId, 
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst`
[INFO] [stdout]    --> src/subgraph.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         dst:   NodeId)
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]    --> src/subgraph.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |         src_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst_distance`
[INFO] [stdout]    --> src/subgraph.rs:614:9
[INFO] [stdout]     |
[INFO] [stdout] 614 |         dst_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/update_sigmas.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[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/update_sigmas.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/get_connected_component_sizes.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | /             self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout] 27 | |                 node, 
[INFO] [stdout] 28 | |                 &mut visit_markers, 
[INFO] [stdout] 29 | |                 &mut out_vec
[INFO] [stdout] 30 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let _ = self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/subgraph.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     delegate_to_neighbors_map!{}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 | /         self.maybe_update_all_sigmas(
[INFO] [stdout] 468 | |             v_n,
[INFO] [stdout] 469 | |             source,
[INFO] [stdout] 470 | |             tmp_subgraph_map,
[INFO] [stdout] 471 | |             tmp_conn_vertex_map
[INFO] [stdout] 472 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let _ = self.maybe_update_all_sigmas(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:577:13
[INFO] [stdout]     |
[INFO] [stdout] 577 | /             self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout] 578 | |                 v_n, 
[INFO] [stdout] 579 | |                 source, 
[INFO] [stdout] 580 | |                 stack, 
[INFO] [stdout] ...   |
[INFO] [stdout] 583 | |                 scores
[INFO] [stdout] 584 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 577 |             let _ = self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:631:9
[INFO] [stdout]     |
[INFO] [stdout] 631 | /         self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout] 632 | |             source,
[INFO] [stdout] 633 | |             &stack,
[INFO] [stdout] 634 | |             tmp_subgraph_map,
[INFO] [stdout] 635 | |             tmp_conn_vertex_map,
[INFO] [stdout] 636 | |             scores,
[INFO] [stdout] 637 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 631 |         let _ = self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:641:9
[INFO] [stdout]     |
[INFO] [stdout] 641 |         self.iteration2_update2();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 641 |         let _ = self.iteration2_update2();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:739:13
[INFO] [stdout]     |
[INFO] [stdout] 739 |             self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 739 |             let _ = self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-subgraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/subgraph.rs:508:40
[INFO] [stdout]     |
[INFO] [stdout] 508 |             let v_n: NodeId = stack[i];;
[INFO] [stdout]     |                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_nodes`
[INFO] [stdout]    --> src/create.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |         let num_nodes = g.num_nodes();
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_nodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         let mut e1 = Edge::new(src,dst);
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]   --> src/insert_edge.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut e2 = e1.reversed();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/subgraph.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         s:     NodeId, 
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         stack: &mut Stack<NodeId>, 
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]    --> src/subgraph.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         src:   NodeId, 
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst`
[INFO] [stdout]    --> src/subgraph.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         dst:   NodeId)
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout]    --> src/subgraph.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |         stack:               &Vec<NodeId>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]    --> src/subgraph.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |         src_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dst_distance`
[INFO] [stdout]    --> src/subgraph.rs:614:9
[INFO] [stdout]     |
[INFO] [stdout] 614 |         dst_distance:        f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/update_sigmas.rs:42:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:43:17
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[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/update_sigmas.rs:73:17
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[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/update_sigmas.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/get_connected_component_sizes.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 | /             self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout] 27 | |                 node, 
[INFO] [stdout] 28 | |                 &mut visit_markers, 
[INFO] [stdout] 29 | |                 &mut out_vec
[INFO] [stdout] 30 | |             );
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let _ = self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/subgraph.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     delegate_to_neighbors_map!{}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 | /         self.maybe_update_all_sigmas(
[INFO] [stdout] 468 | |             v_n,
[INFO] [stdout] 469 | |             source,
[INFO] [stdout] 470 | |             tmp_subgraph_map,
[INFO] [stdout] 471 | |             tmp_conn_vertex_map
[INFO] [stdout] 472 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 467 |         let _ = self.maybe_update_all_sigmas(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:577:13
[INFO] [stdout]     |
[INFO] [stdout] 577 | /             self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout] 578 | |                 v_n, 
[INFO] [stdout] 579 | |                 source, 
[INFO] [stdout] 580 | |                 stack, 
[INFO] [stdout] ...   |
[INFO] [stdout] 583 | |                 scores
[INFO] [stdout] 584 | |             );
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 577 |             let _ = self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:631:9
[INFO] [stdout]     |
[INFO] [stdout] 631 | /         self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout] 632 | |             source,
[INFO] [stdout] 633 | |             &stack,
[INFO] [stdout] 634 | |             tmp_subgraph_map,
[INFO] [stdout] 635 | |             tmp_conn_vertex_map,
[INFO] [stdout] 636 | |             scores,
[INFO] [stdout] 637 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 631 |         let _ = self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:641:9
[INFO] [stdout]     |
[INFO] [stdout] 641 |         self.iteration2_update2();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 641 |         let _ = self.iteration2_update2();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/subgraph.rs:739:13
[INFO] [stdout]     |
[INFO] [stdout] 739 |             self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 739 |             let _ = self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "51aaad2eb218fe14f935c4e5ab875cc532d3d258f950980e3bcfc1d838c6d896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51aaad2eb218fe14f935c4e5ab875cc532d3d258f950980e3bcfc1d838c6d896", kill_on_drop: false }`
[INFO] [stdout] 51aaad2eb218fe14f935c4e5ab875cc532d3d258f950980e3bcfc1d838c6d896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] f9d5f7624c540db55679d58a44cff2c762d536ce57064afa26545dc15c27ce8e
[INFO] running `Command { std: "docker" "start" "-a" "f9d5f7624c540db55679d58a44cff2c762d536ce57064afa26545dc15c27ce8e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/subgraph.rs:508:40
[INFO] [stderr]     |
[INFO] [stderr] 508 |             let v_n: NodeId = stack[i];;
[INFO] [stderr]     |                                        ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_nodes`
[INFO] [stderr]    --> src/create.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |         let num_nodes = g.num_nodes();
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_nodes`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/insert_edge.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut e1 = Edge::new(src,dst);
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/insert_edge.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut e2 = e1.reversed();
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e2`
[INFO] [stderr]   --> src/insert_edge.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let mut e2 = e1.reversed();
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/subgraph.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         s:     NodeId, 
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]    --> src/subgraph.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         stack: &mut Stack<NodeId>, 
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]    --> src/subgraph.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         src:   NodeId, 
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dst`
[INFO] [stderr]    --> src/subgraph.rs:172:9
[INFO] [stderr]     |
[INFO] [stderr] 172 |         dst:   NodeId)
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]    --> src/subgraph.rs:462:9
[INFO] [stderr]     |
[INFO] [stderr] 462 |         stack:               &Vec<NodeId>,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack`
[INFO] [stderr]    --> src/subgraph.rs:527:9
[INFO] [stderr]     |
[INFO] [stderr] 527 |         stack:               &Vec<NodeId>,
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stack`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src_distance`
[INFO] [stderr]    --> src/subgraph.rs:613:9
[INFO] [stderr]     |
[INFO] [stderr] 613 |         src_distance:        f64,
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dst_distance`
[INFO] [stderr]    --> src/subgraph.rs:614:9
[INFO] [stderr]     |
[INFO] [stderr] 614 |         dst_distance:        f64,
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/update_sigmas.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/update_sigmas.rs:43:17
[INFO] [stderr]    |
[INFO] [stderr] 43 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/update_sigmas.rs:73:17
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let mut vg_s: i32 = subgraph_map.subgraph_for_node(source).num_nodes().try_into()?;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/update_sigmas.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let mut vg_n: i32 = subgraph_map.subgraph_for_node(v_n).num_nodes().try_into()?;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/get_connected_component_sizes.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 | /             self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stderr] 27 | |                 node, 
[INFO] [stderr] 28 | |                 &mut visit_markers, 
[INFO] [stderr] 29 | |                 &mut out_vec
[INFO] [stderr] 30 | |             );
[INFO] [stderr]    | |_____________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 26 |             let _ = self.do_bfs_from_source_count_vertices_and_mark_visited(
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/subgraph.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     delegate_to_neighbors_map!{}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/subgraph.rs:467:9
[INFO] [stderr]     |
[INFO] [stderr] 467 | /         self.maybe_update_all_sigmas(
[INFO] [stderr] 468 | |             v_n,
[INFO] [stderr] 469 | |             source,
[INFO] [stderr] 470 | |             tmp_subgraph_map,
[INFO] [stderr] 471 | |             tmp_conn_vertex_map
[INFO] [stderr] 472 | |         );
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 467 |         let _ = self.maybe_update_all_sigmas(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/subgraph.rs:577:13
[INFO] [stderr]     |
[INFO] [stderr] 577 | /             self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stderr] 578 | |                 v_n, 
[INFO] [stderr] 579 | |                 source, 
[INFO] [stderr] 580 | |                 stack, 
[INFO] [stderr] ...   |
[INFO] [stderr] 583 | |                 scores
[INFO] [stderr] 584 | |             );
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 577 |             let _ = self.rbfs2_to_add_the_new_pair_dependencies_step(
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/subgraph.rs:631:9
[INFO] [stderr]     |
[INFO] [stderr] 631 | /         self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stderr] 632 | |             source,
[INFO] [stderr] 633 | |             &stack,
[INFO] [stderr] 634 | |             tmp_subgraph_map,
[INFO] [stderr] 635 | |             tmp_conn_vertex_map,
[INFO] [stderr] 636 | |             scores,
[INFO] [stderr] 637 | |         );
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 631 |         let _ = self.rbfs1_to_add_the_new_pair_dependencies(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/subgraph.rs:641:9
[INFO] [stderr]     |
[INFO] [stderr] 641 |         self.iteration2_update2();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 641 |         let _ = self.iteration2_update2();
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/subgraph.rs:739:13
[INFO] [stderr]     |
[INFO] [stderr] 739 |             self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 739 |             let _ = self.iteration2_step3_process_neighbor(v,nbr);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `icentral-subgraph` (lib) generated 24 warnings (run `cargo fix --lib -p icentral-subgraph` to apply 16 suggestions)
[INFO] [stderr] warning: `icentral-subgraph` (lib test) generated 24 warnings (24 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/icentral-subgraph/9723467ab3217d63/deps/icentral_subgraph-9723467ab3217d63)
[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 icentral_subgraph
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/subgraph.rs:508:40
[INFO] [stderr]     |
[INFO] [stderr] 508 |             let v_n: NodeId = stack[i];;
[INFO] [stderr]     |                                        ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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] running `Command { std: "docker" "inspect" "f9d5f7624c540db55679d58a44cff2c762d536ce57064afa26545dc15c27ce8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d5f7624c540db55679d58a44cff2c762d536ce57064afa26545dc15c27ce8e", kill_on_drop: false }`
[INFO] [stdout] f9d5f7624c540db55679d58a44cff2c762d536ce57064afa26545dc15c27ce8e
