[INFO] fetching crate icentral-delta 0.1.0...
[INFO] testing icentral-delta-0.1.0 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate icentral-delta 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate icentral-delta 0.1.0
[INFO] finished tweaking crates.io crate icentral-delta 0.1.0
[INFO] tweaked toml for crates.io crate icentral-delta 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-delta 0.1.0 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-delta 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded icentral-subgraph v0.1.0
[INFO] [stderr]   Downloaded icentral-timer v0.1.0
[INFO] [stderr]   Downloaded icentral-subgraph-map v0.1.0
[INFO] [stderr]   Downloaded icentral-mucid v0.1.0
[INFO] [stderr]   Downloaded icentral-sigmas v0.1.0
[INFO] [stderr]   Downloaded icentral-visit-markers v0.1.0
[INFO] [stderr]   Downloaded icentral-stats v0.1.0
[INFO] [stderr]   Downloaded icentral-scores v0.1.0
[INFO] [stderr]   Downloaded icentral-deltas v0.1.0
[INFO] [stderr]   Downloaded icentral-node-queue v0.1.0
[INFO] [stderr]   Downloaded icentral-graph-interface v0.1.0
[INFO] [stderr]   Downloaded icentral-node-stack v0.1.0
[INFO] [stderr]   Downloaded icentral-pair-dependencies v0.1.0
[INFO] [stderr]   Downloaded icentral-bc-mem v0.1.0
[INFO] [stderr]   Downloaded icentral-conn-vertex-map v0.1.0
[INFO] [stderr]   Downloaded icentral-rbfs v0.1.0
[INFO] [stderr]   Downloaded icentral-bbfs v0.1.0
[INFO] [stderr]   Downloaded icentral-component v0.1.0
[INFO] [stderr]   Downloaded icentral-workspace v0.1.0
[INFO] [stderr]   Downloaded icentral-brandes v0.1.0
[INFO] [stderr]   Downloaded icentral-parents-map v0.1.0
[INFO] [stderr]   Downloaded icentral-bcc v0.1.0
[INFO] [stderr]   Downloaded icentral-articulation-point-map v0.1.0
[INFO] [stderr]   Downloaded icentral-path-counts v0.1.0
[INFO] [stderr]   Downloaded icentral-cycle v0.1.0
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09790629c02da410bb41e237af372a409a66b8bac6076d7c366194c4f2451315
[INFO] running `Command { std: "docker" "start" "-a" "09790629c02da410bb41e237af372a409a66b8bac6076d7c366194c4f2451315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09790629c02da410bb41e237af372a409a66b8bac6076d7c366194c4f2451315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09790629c02da410bb41e237af372a409a66b8bac6076d7c366194c4f2451315", kill_on_drop: false }`
[INFO] [stdout] 09790629c02da410bb41e237af372a409a66b8bac6076d7c366194c4f2451315
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c25c4369f5097cf7bbc4fddf9d6d82c4dba9850d01d0d5b97c452976de7ec8d
[INFO] running `Command { std: "docker" "start" "-a" "7c25c4369f5097cf7bbc4fddf9d6d82c4dba9850d01d0d5b97c452976de7ec8d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling icentral-scores v0.1.0
[INFO] [stderr]    Compiling icentral-bc-mem v0.1.0
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[INFO] [stderr]    Compiling icentral-delta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/delta.rs:896:40
[INFO] [stdout]     |
[INFO] [stdout] 896 |             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: `tot_arr`
[INFO] [stdout]    --> src/delta.rs:391:9
[INFO] [stdout]     |
[INFO] [stdout] 391 |         tot_arr:   &mut Vec<Duration>)
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tot_arr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/delta.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         scores: &mut BetweennessScores)
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]     --> src/delta.rs:1025:9
[INFO] [stdout]      |
[INFO] [stdout] 1025 |         scores: &mut BetweennessScores)
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_s`
[INFO] [stdout]     --> src/delta.rs:1157:9
[INFO] [stdout]      |
[INFO] [stdout] 1157 |         v_s:          &Vec<NodeId>,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_v_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]     --> src/delta.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         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/delta.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         dst:          NodeId,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]     --> src/delta.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         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/delta.rs:1162:9
[INFO] [stdout]      |
[INFO] [stdout] 1162 |         dst_distance: f64,
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/delta.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     delegate_to_graphhash!{bcc_subgraph}
[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] 87 |     let _ = delegate_to_graphhash!{bcc_subgraph}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[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] 123 |         let _ = self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         self.bcc_subgraph.insert_edge(
[INFO] [stdout] 173 | |             &Edge::new(src,dst)
[INFO] [stdout] 174 | |         );
[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] 172 |         let _ = self.bcc_subgraph.insert_edge(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 268 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 295 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 434 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 490 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:517:17
[INFO] [stdout]     |
[INFO] [stdout] 517 | /                 self.iteration_1(
[INFO] [stdout] 518 | |                     source, 
[INFO] [stdout] 519 | |                     src,
[INFO] [stdout] 520 | |                     dst,
[INFO] [stdout] 521 | |                     scores
[INFO] [stdout] 522 | |                 );
[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] 517 |                 let _ = self.iteration_1(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:530:17
[INFO] [stdout]     |
[INFO] [stdout] 530 | /                 self.iteration_2(
[INFO] [stdout] 531 | |                     source, 
[INFO] [stdout] 532 | |                     src,
[INFO] [stdout] 533 | |                     dst,
[INFO] [stdout] 534 | |                     scores
[INFO] [stdout] 535 | |                 );
[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] 530 |                 let _ = self.iteration_2(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:789:13
[INFO] [stdout]     |
[INFO] [stdout] 789 |             self.maybe_update_all_sigmas(source,v_n);
[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] 789 |             let _ = self.maybe_update_all_sigmas(source,v_n);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1090:13
[INFO] [stdout]      |
[INFO] [stdout] 1090 |             self.maybe_update_all_sigmas2(source, v_n);
[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] 1090 |             let _ = self.maybe_update_all_sigmas2(source, v_n);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1311:9
[INFO] [stdout]      |
[INFO] [stdout] 1311 |         self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[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] 1311 |         let _ = self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `Command { std: "docker" "inspect" "7c25c4369f5097cf7bbc4fddf9d6d82c4dba9850d01d0d5b97c452976de7ec8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c25c4369f5097cf7bbc4fddf9d6d82c4dba9850d01d0d5b97c452976de7ec8d", kill_on_drop: false }`
[INFO] [stdout] 7c25c4369f5097cf7bbc4fddf9d6d82c4dba9850d01d0d5b97c452976de7ec8d
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d208912a129a82cbd494bff9cd3137f4735003754cb7681eed580653691fd06d
[INFO] running `Command { std: "docker" "start" "-a" "d208912a129a82cbd494bff9cd3137f4735003754cb7681eed580653691fd06d", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/delta.rs:896:40
[INFO] [stdout]     |
[INFO] [stdout] 896 |             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: `tot_arr`
[INFO] [stdout]    --> src/delta.rs:391:9
[INFO] [stdout]     |
[INFO] [stdout] 391 |         tot_arr:   &mut Vec<Duration>)
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tot_arr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/delta.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         scores: &mut BetweennessScores)
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]     --> src/delta.rs:1025:9
[INFO] [stdout]      |
[INFO] [stdout] 1025 |         scores: &mut BetweennessScores)
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_s`
[INFO] [stdout]     --> src/delta.rs:1157:9
[INFO] [stdout]      |
[INFO] [stdout] 1157 |         v_s:          &Vec<NodeId>,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_v_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]     --> src/delta.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         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/delta.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         dst:          NodeId,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]     --> src/delta.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         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/delta.rs:1162:9
[INFO] [stdout]      |
[INFO] [stdout] 1162 |         dst_distance: f64,
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/delta.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     delegate_to_graphhash!{bcc_subgraph}
[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] 87 |     let _ = delegate_to_graphhash!{bcc_subgraph}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[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] 123 |         let _ = self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         self.bcc_subgraph.insert_edge(
[INFO] [stdout] 173 | |             &Edge::new(src,dst)
[INFO] [stdout] 174 | |         );
[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] 172 |         let _ = self.bcc_subgraph.insert_edge(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 268 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-delta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 295 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 434 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 490 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:517:17
[INFO] [stdout]     |
[INFO] [stdout] 517 | /                 self.iteration_1(
[INFO] [stdout] 518 | |                     source, 
[INFO] [stdout] 519 | |                     src,
[INFO] [stdout] 520 | |                     dst,
[INFO] [stdout] 521 | |                     scores
[INFO] [stdout] 522 | |                 );
[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] 517 |                 let _ = self.iteration_1(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:530:17
[INFO] [stdout]     |
[INFO] [stdout] 530 | /                 self.iteration_2(
[INFO] [stdout] 531 | |                     source, 
[INFO] [stdout] 532 | |                     src,
[INFO] [stdout] 533 | |                     dst,
[INFO] [stdout] 534 | |                     scores
[INFO] [stdout] 535 | |                 );
[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] 530 |                 let _ = self.iteration_2(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:789:13
[INFO] [stdout]     |
[INFO] [stdout] 789 |             self.maybe_update_all_sigmas(source,v_n);
[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] 789 |             let _ = self.maybe_update_all_sigmas(source,v_n);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1090:13
[INFO] [stdout]      |
[INFO] [stdout] 1090 |             self.maybe_update_all_sigmas2(source, v_n);
[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] 1090 |             let _ = self.maybe_update_all_sigmas2(source, v_n);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1311:9
[INFO] [stdout]      |
[INFO] [stdout] 1311 |         self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[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] 1311 |         let _ = self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/delta.rs:896:40
[INFO] [stdout]     |
[INFO] [stdout] 896 |             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: `tot_arr`
[INFO] [stdout]    --> src/delta.rs:391:9
[INFO] [stdout]     |
[INFO] [stdout] 391 |         tot_arr:   &mut Vec<Duration>)
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tot_arr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/delta.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         scores: &mut BetweennessScores)
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]     --> src/delta.rs:1025:9
[INFO] [stdout]      |
[INFO] [stdout] 1025 |         scores: &mut BetweennessScores)
[INFO] [stdout]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_s`
[INFO] [stdout]     --> src/delta.rs:1157:9
[INFO] [stdout]      |
[INFO] [stdout] 1157 |         v_s:          &Vec<NodeId>,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_v_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]     --> src/delta.rs:1159:9
[INFO] [stdout]      |
[INFO] [stdout] 1159 |         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/delta.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |         dst:          NodeId,
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_distance`
[INFO] [stdout]     --> src/delta.rs:1161:9
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         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/delta.rs:1162:9
[INFO] [stdout]      |
[INFO] [stdout] 1162 |         dst_distance: f64,
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/delta.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     delegate_to_graphhash!{bcc_subgraph}
[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] 87 |     let _ = delegate_to_graphhash!{bcc_subgraph}
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[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] 123 |         let _ = self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 | /         self.bcc_subgraph.insert_edge(
[INFO] [stdout] 173 | |             &Edge::new(src,dst)
[INFO] [stdout] 174 | |         );
[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] 172 |         let _ = self.bcc_subgraph.insert_edge(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 268 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:295:9
[INFO] [stdout]     |
[INFO] [stdout] 295 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 295 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:434:9
[INFO] [stdout]     |
[INFO] [stdout] 434 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 434 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:490:9
[INFO] [stdout]     |
[INFO] [stdout] 490 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 490 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:517:17
[INFO] [stdout]     |
[INFO] [stdout] 517 | /                 self.iteration_1(
[INFO] [stdout] 518 | |                     source, 
[INFO] [stdout] 519 | |                     src,
[INFO] [stdout] 520 | |                     dst,
[INFO] [stdout] 521 | |                     scores
[INFO] [stdout] 522 | |                 );
[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] 517 |                 let _ = self.iteration_1(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:530:17
[INFO] [stdout]     |
[INFO] [stdout] 530 | /                 self.iteration_2(
[INFO] [stdout] 531 | |                     source, 
[INFO] [stdout] 532 | |                     src,
[INFO] [stdout] 533 | |                     dst,
[INFO] [stdout] 534 | |                     scores
[INFO] [stdout] 535 | |                 );
[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] 530 |                 let _ = self.iteration_2(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/delta.rs:789:13
[INFO] [stdout]     |
[INFO] [stdout] 789 |             self.maybe_update_all_sigmas(source,v_n);
[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] 789 |             let _ = self.maybe_update_all_sigmas(source,v_n);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1090:13
[INFO] [stdout]      |
[INFO] [stdout] 1090 |             self.maybe_update_all_sigmas2(source, v_n);
[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] 1090 |             let _ = self.maybe_update_all_sigmas2(source, v_n);
[INFO] [stdout]      |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/delta.rs:1311:9
[INFO] [stdout]      |
[INFO] [stdout] 1311 |         self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[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] 1311 |         let _ = self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "d208912a129a82cbd494bff9cd3137f4735003754cb7681eed580653691fd06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d208912a129a82cbd494bff9cd3137f4735003754cb7681eed580653691fd06d", kill_on_drop: false }`
[INFO] [stdout] d208912a129a82cbd494bff9cd3137f4735003754cb7681eed580653691fd06d
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e41143f4e28c8d9ea7802447ce4d8020b3f1a7172df73f29a153b11160fd8e9f
[INFO] running `Command { std: "docker" "start" "-a" "e41143f4e28c8d9ea7802447ce4d8020b3f1a7172df73f29a153b11160fd8e9f", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/delta.rs:896:40
[INFO] [stderr]     |
[INFO] [stderr] 896 |             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: `tot_arr`
[INFO] [stderr]    --> src/delta.rs:391:9
[INFO] [stderr]     |
[INFO] [stderr] 391 |         tot_arr:   &mut Vec<Duration>)
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tot_arr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]    --> src/delta.rs:858:9
[INFO] [stderr]     |
[INFO] [stderr] 858 |         scores: &mut BetweennessScores)
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]     --> src/delta.rs:1025:9
[INFO] [stderr]      |
[INFO] [stderr] 1025 |         scores: &mut BetweennessScores)
[INFO] [stderr]      |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v_s`
[INFO] [stderr]     --> src/delta.rs:1157:9
[INFO] [stderr]      |
[INFO] [stderr] 1157 |         v_s:          &Vec<NodeId>,
[INFO] [stderr]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_v_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]     --> src/delta.rs:1159:9
[INFO] [stderr]      |
[INFO] [stderr] 1159 |         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/delta.rs:1160:9
[INFO] [stderr]      |
[INFO] [stderr] 1160 |         dst:          NodeId,
[INFO] [stderr]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_dst`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src_distance`
[INFO] [stderr]     --> src/delta.rs:1161:9
[INFO] [stderr]      |
[INFO] [stderr] 1161 |         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/delta.rs:1162:9
[INFO] [stderr]      |
[INFO] [stderr] 1162 |         dst_distance: f64,
[INFO] [stderr]      |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dst_distance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/delta.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     delegate_to_graphhash!{bcc_subgraph}
[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] 87 |     let _ = delegate_to_graphhash!{bcc_subgraph}
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[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] 123 |         let _ = self.bcc_subgraph.remove_edge(&Edge::new(src,dst));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:172:9
[INFO] [stderr]     |
[INFO] [stderr] 172 | /         self.bcc_subgraph.insert_edge(
[INFO] [stderr] 173 | |             &Edge::new(src,dst)
[INFO] [stderr] 174 | |         );
[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] 172 |         let _ = self.bcc_subgraph.insert_edge(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:268:9
[INFO] [stderr]     |
[INFO] [stderr] 268 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 268 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:295:9
[INFO] [stderr]     |
[INFO] [stderr] 295 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 295 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |         self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[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] 434 |         let _ = self.bcc_fast_subgraph.remove_edge_between_nodes(src, dst);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:490:9
[INFO] [stderr]     |
[INFO] [stderr] 490 |         self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[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] 490 |         let _ = self.bcc_fast_subgraph.insert_edge_between_nodes(src, dst);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:517:17
[INFO] [stderr]     |
[INFO] [stderr] 517 | /                 self.iteration_1(
[INFO] [stderr] 518 | |                     source, 
[INFO] [stderr] 519 | |                     src,
[INFO] [stderr] 520 | |                     dst,
[INFO] [stderr] 521 | |                     scores
[INFO] [stderr] 522 | |                 );
[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] 517 |                 let _ = self.iteration_1(
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:530:17
[INFO] [stderr]     |
[INFO] [stderr] 530 | /                 self.iteration_2(
[INFO] [stderr] 531 | |                     source, 
[INFO] [stderr] 532 | |                     src,
[INFO] [stderr] 533 | |                     dst,
[INFO] [stderr] 534 | |                     scores
[INFO] [stderr] 535 | |                 );
[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] 530 |                 let _ = self.iteration_2(
[INFO] [stderr]     |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/delta.rs:789:13
[INFO] [stderr]     |
[INFO] [stderr] 789 |             self.maybe_update_all_sigmas(source,v_n);
[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] 789 |             let _ = self.maybe_update_all_sigmas(source,v_n);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]     --> src/delta.rs:1090:13
[INFO] [stderr]      |
[INFO] [stderr] 1090 |             self.maybe_update_all_sigmas2(source, v_n);
[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] 1090 |             let _ = self.maybe_update_all_sigmas2(source, v_n);
[INFO] [stderr]      |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]     --> src/delta.rs:1311:9
[INFO] [stderr]      |
[INFO] [stderr] 1311 |         self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[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] 1311 |         let _ = self.bcc_subgraph_remove_edge(&Edge::new(src, dst));
[INFO] [stderr]      |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `icentral-delta` (lib) generated 21 warnings (run `cargo fix --lib -p icentral-delta` to apply 8 suggestions)
[INFO] [stderr] warning: `icentral-delta` (lib test) generated 21 warnings (21 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/icentral_delta-b664fd67b153a671)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests icentral_delta
[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] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/delta.rs:896:40
[INFO] [stderr]     |
[INFO] [stderr] 896 |             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" "e41143f4e28c8d9ea7802447ce4d8020b3f1a7172df73f29a153b11160fd8e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41143f4e28c8d9ea7802447ce4d8020b3f1a7172df73f29a153b11160fd8e9f", kill_on_drop: false }`
[INFO] [stdout] e41143f4e28c8d9ea7802447ce4d8020b3f1a7172df73f29a153b11160fd8e9f
