[INFO] fetching crate icentral-test-qube 0.1.0...
[INFO] testing icentral-test-qube-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate icentral-test-qube 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate icentral-test-qube 0.1.0
[INFO] finished tweaking crates.io crate icentral-test-qube 0.1.0
[INFO] tweaked toml for crates.io crate icentral-test-qube 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-test-qube 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-test-qube 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded icentral-3p v0.1.0
[INFO] [stderr]   Downloaded traced-test v0.3.6
[INFO] [stderr]   Downloaded scan-crate-for-typedefs v0.6.0
[INFO] [stderr]   Downloaded jod-thread v0.1.2
[INFO] [stderr]   Downloaded icentral-timer v0.1.0
[INFO] [stderr]   Downloaded pbx v0.1.0
[INFO] [stderr]   Downloaded always-assert v0.1.3
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] [stderr]   Downloaded la-arena v0.3.1
[INFO] [stderr]   Downloaded owned-alloc v0.2.0
[INFO] [stderr]   Downloaded icentral-gen-rand-edges v0.1.0
[INFO] [stderr]   Downloaded icentral-bridge-edges v0.1.0
[INFO] [stderr]   Downloaded icentral-predecessor-map v0.1.0
[INFO] [stderr]   Downloaded icentral-node-queue v0.1.0
[INFO] [stderr]   Downloaded icentral-brandes v0.1.0
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[INFO] [stderr]   Downloaded icentral-graph v0.1.0
[INFO] [stderr]   Downloaded icentral-bbfs v0.1.0
[INFO] [stderr]   Downloaded rustix v0.38.36
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[INFO] [stderr]   Downloaded icentral-rbfs v0.1.0
[INFO] [stderr]   Downloaded lockfree v0.5.1
[INFO] [stderr]   Downloaded icentral-pair-dependencies v0.1.0
[INFO] [stderr]   Downloaded dachshund v0.1.10
[INFO] [stderr]   Downloaded icentral-neighbors v0.1.0
[INFO] [stderr]   Downloaded language-enum v0.1.0
[INFO] [stderr]   Downloaded named-item v0.1.0
[INFO] [stderr]   Downloaded icentral-conn-vertex-map v0.1.0
[INFO] [stderr]   Downloaded icentral-sigmas v0.1.0
[INFO] [stderr]   Downloaded icentral-subgraph v0.1.0
[INFO] [stderr]   Downloaded icentral-bcc v0.1.0
[INFO] [stderr]   Downloaded icentral-scores v0.1.0
[INFO] [stderr]   Downloaded delegate v0.10.0
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[INFO] [stderr]   Downloaded triomphe v0.1.13
[INFO] [stderr]   Downloaded icentral-mock v0.1.0
[INFO] [stderr]   Downloaded icentral-graph-hash v0.1.0
[INFO] [stderr]   Downloaded icentral-deltas v0.1.0
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[INFO] [stderr]   Downloaded icentral-parents-map v0.1.0
[INFO] [stderr]   Downloaded icentral-path-counts v0.1.0
[INFO] [stderr]   Downloaded icentral-cycle v0.1.0
[INFO] [stderr]   Downloaded icentral-distances v0.1.0
[INFO] [stderr]   Downloaded icentral-mucid v0.1.0
[INFO] [stderr]   Downloaded icentral-visit-markers v0.1.0
[INFO] [stderr]   Downloaded icentral-nodeid v0.1.0
[INFO] [stderr]   Downloaded icentral-stats v0.1.0
[INFO] [stderr]   Downloaded safe_arch v0.7.2
[INFO] [stderr]   Downloaded wide v0.7.28
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[INFO] [stderr]   Downloaded case v0.1.0
[INFO] [stderr]   Downloaded error-tree v0.3.6
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[INFO] [stderr]   Downloaded icentral-qube v0.1.0
[INFO] [stderr]   Downloaded ra_ap_syntax v0.0.173
[INFO] [stderr]   Downloaded unicode-properties v0.1.2
[INFO] [stderr]   Downloaded icentral-scratch v0.1.0
[INFO] [stderr]   Downloaded icentral-bc-mem v0.1.0
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[INFO] [stderr]   Downloaded icentral-component v0.1.0
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[INFO] [stderr]   Downloaded miow v0.5.0
[INFO] [stderr]   Downloaded icentral-muc v0.1.0
[INFO] [stderr]   Downloaded icentral-graph-interface v0.1.0
[INFO] [stderr]   Downloaded icentral-subgraph-map v0.1.0
[INFO] [stderr]   Downloaded icentral-edges v0.1.0
[INFO] [stderr]   Downloaded icentral-color-map v0.1.0
[INFO] [stderr]   Downloaded countme v3.0.1
[INFO] [stderr]   Downloaded icentral-errors v0.1.0
[INFO] [stderr]   Downloaded icentral-mindexed-map v0.1.0
[INFO] [stderr]   Downloaded icentral-label-map v0.1.0
[INFO] [stderr]   Downloaded icentral-edge v0.1.0
[INFO] [stderr]   Downloaded derive-error v0.0.5
[INFO] [stderr]   Downloaded perf-event-open-sys v1.0.1
[INFO] [stderr]   Downloaded tracing-setup v0.3.6
[INFO] [stderr]   Downloaded export-magic v0.3.6
[INFO] [stderr]   Downloaded renew-traits v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e20d9fd1a42d082a0096d1f5f3b2b8592caab5a98c14ba26d7a37bb92b11785e
[INFO] running `Command { std: "docker" "start" "-a" "e20d9fd1a42d082a0096d1f5f3b2b8592caab5a98c14ba26d7a37bb92b11785e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e20d9fd1a42d082a0096d1f5f3b2b8592caab5a98c14ba26d7a37bb92b11785e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20d9fd1a42d082a0096d1f5f3b2b8592caab5a98c14ba26d7a37bb92b11785e", kill_on_drop: false }`
[INFO] [stdout] e20d9fd1a42d082a0096d1f5f3b2b8592caab5a98c14ba26d7a37bb92b11785e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e3911c5458a75bcc1ad0569d20343e4216bacc841c02e01521abf54b4074bd1
[INFO] running `Command { std: "docker" "start" "-a" "5e3911c5458a75bcc1ad0569d20343e4216bacc841c02e01521abf54b4074bd1", kill_on_drop: false }`
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[INFO] [stderr]    Compiling icentral-muc v0.1.0
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[INFO] [stderr]    Compiling icentral-graph-hash v0.1.0
[INFO] [stderr]    Compiling icentral-test-qube v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `icentral_graph_hash::*`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_graph_hash::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[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_edges_to_insert`
[INFO] [stdout]  --> src/test_qube_insertion.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     num_edges_to_insert: u32) 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[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/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[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: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/test_qube_insertion.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     for i in 0..num_edges_to_insert {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut brandes_time  = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:136:29
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         let mut src:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dst` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:178:35
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut dst:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_edge_vec`
[INFO] [stdout]   --> src/test_qube_p.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     rand_edge_vec: &Vec<Edge>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_edge_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_p.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let scores: BetweennessScores 
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_p.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_edges_to_insert`
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_edges_to_insert:  usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ideal_speedup` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:34
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[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/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:214:28
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let mut brandes_time = Duration::from_secs(0);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:216:29
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[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] 69 |     let _ = graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_p.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 47 | |         &mut scores, 
[INFO] [stdout] 48 | |         num_iter
[INFO] [stdout] 49 | |     );
[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] 46 |     let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_p.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | /         exp_qube_p_step(
[INFO] [stdout] 160 | |             &mut tot_speedup,
[INFO] [stdout] 161 | |             &mut tot_time,
[INFO] [stdout] 162 | |             &mut speedup_vec,
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |             &mut edge_stat_vec
[INFO] [stdout] 169 | |         );
[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] 159 |         let _ = exp_qube_p_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | /         graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 68 | |             &mut scores, 
[INFO] [stdout] 69 | |             max_iter
[INFO] [stdout] 70 | |         );
[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] 67 |         let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout] 75 | |             &mut scores, 
[INFO] [stdout] 76 | |             rand_edge.src, 
[INFO] [stdout] 77 | |             rand_edge.dst, 
[INFO] [stdout] 78 | |             None
[INFO] [stdout] 79 | |         );
[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] 74 |         let _ = graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 | /         insertion_test_qube_hash_step(
[INFO] [stdout] 288 | |             &brandes_time,
[INFO] [stdout] 289 | |             &mut tot_speedup,
[INFO] [stdout] 290 | |             &mut tot_ideal_speedup,
[INFO] [stdout] ...   |
[INFO] [stdout] 297 | |             &mut edge_stat_vec
[INFO] [stdout] 298 | |         );
[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] 287 |         let _ = insertion_test_qube_hash_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: icentral-neighbors v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "5e3911c5458a75bcc1ad0569d20343e4216bacc841c02e01521abf54b4074bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3911c5458a75bcc1ad0569d20343e4216bacc841c02e01521abf54b4074bd1", kill_on_drop: false }`
[INFO] [stdout] 5e3911c5458a75bcc1ad0569d20343e4216bacc841c02e01521abf54b4074bd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6d4ecc78a2e195bc335c7999b6a08680379b4f7d580f625d1a243a0117dc7aa
[INFO] running `Command { std: "docker" "start" "-a" "e6d4ecc78a2e195bc335c7999b6a08680379b4f7d580f625d1a243a0117dc7aa", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `icentral_graph_hash::*`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_graph_hash::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-test-qube v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[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_edges_to_insert`
[INFO] [stdout]  --> src/test_qube_insertion.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     num_edges_to_insert: u32) 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[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/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[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: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/test_qube_insertion.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     for i in 0..num_edges_to_insert {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut brandes_time  = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:136:29
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         let mut src:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dst` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:178:35
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut dst:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_edge_vec`
[INFO] [stdout]   --> src/test_qube_p.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     rand_edge_vec: &Vec<Edge>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_edge_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_p.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let scores: BetweennessScores 
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_p.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_edges_to_insert`
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_edges_to_insert:  usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ideal_speedup` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:34
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[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/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:214:28
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let mut brandes_time = Duration::from_secs(0);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:216:29
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[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] 69 |     let _ = graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_p.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 47 | |         &mut scores, 
[INFO] [stdout] 48 | |         num_iter
[INFO] [stdout] 49 | |     );
[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] 46 |     let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_p.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | /         exp_qube_p_step(
[INFO] [stdout] 160 | |             &mut tot_speedup,
[INFO] [stdout] 161 | |             &mut tot_time,
[INFO] [stdout] 162 | |             &mut speedup_vec,
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |             &mut edge_stat_vec
[INFO] [stdout] 169 | |         );
[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] 159 |         let _ = exp_qube_p_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | /         graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 68 | |             &mut scores, 
[INFO] [stdout] 69 | |             max_iter
[INFO] [stdout] 70 | |         );
[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] 67 |         let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout] 75 | |             &mut scores, 
[INFO] [stdout] 76 | |             rand_edge.src, 
[INFO] [stdout] 77 | |             rand_edge.dst, 
[INFO] [stdout] 78 | |             None
[INFO] [stdout] 79 | |         );
[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] 74 |         let _ = graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 | /         insertion_test_qube_hash_step(
[INFO] [stdout] 288 | |             &brandes_time,
[INFO] [stdout] 289 | |             &mut tot_speedup,
[INFO] [stdout] 290 | |             &mut tot_ideal_speedup,
[INFO] [stdout] ...   |
[INFO] [stdout] 297 | |             &mut edge_stat_vec
[INFO] [stdout] 298 | |         );
[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] 287 |         let _ = insertion_test_qube_hash_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_graph_hash::*`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_graph_hash::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:49
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[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_edges_to_insert`
[INFO] [stdout]  --> src/test_qube_insertion.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     num_edges_to_insert: u32) 
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[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/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[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: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/test_qube_insertion.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |     for i in 0..num_edges_to_insert {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let mut brandes_time  = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:136:29
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `src` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:177:35
[INFO] [stdout]     |
[INFO] [stdout] 177 |         let mut src:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dst` is never read
[INFO] [stdout]    --> src/test_qube_insertion.rs:178:35
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut dst:     NodeId = NodeId::default();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_edge_vec`
[INFO] [stdout]   --> src/test_qube_p.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     rand_edge_vec: &Vec<Edge>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_edge_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_p.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let scores: BetweennessScores 
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_p.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_edges_to_insert`
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_edges_to_insert:  usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ideal_speedup` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:104:34
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut ideal_speedup: f64 = f64::default();;
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[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/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `brandes_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:214:28
[INFO] [stdout]     |
[INFO] [stdout] 214 |     let mut brandes_time = Duration::from_secs(0);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `muc_find_time` is never read
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:216:29
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[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] 69 |     let _ = graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_p.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 47 | |         &mut scores, 
[INFO] [stdout] 48 | |         num_iter
[INFO] [stdout] 49 | |     );
[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] 46 |     let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_p.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | /         exp_qube_p_step(
[INFO] [stdout] 160 | |             &mut tot_speedup,
[INFO] [stdout] 161 | |             &mut tot_time,
[INFO] [stdout] 162 | |             &mut speedup_vec,
[INFO] [stdout] ...   |
[INFO] [stdout] 168 | |             &mut edge_stat_vec
[INFO] [stdout] 169 | |         );
[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] 159 |         let _ = exp_qube_p_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | /         graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout] 68 | |             &mut scores, 
[INFO] [stdout] 69 | |             max_iter
[INFO] [stdout] 70 | |         );
[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] 67 |         let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_qube_insertion_hash.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout] 75 | |             &mut scores, 
[INFO] [stdout] 76 | |             rand_edge.src, 
[INFO] [stdout] 77 | |             rand_edge.dst, 
[INFO] [stdout] 78 | |             None
[INFO] [stdout] 79 | |         );
[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] 74 |         let _ = graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test_qube_insertion_hash.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 | /         insertion_test_qube_hash_step(
[INFO] [stdout] 288 | |             &brandes_time,
[INFO] [stdout] 289 | |             &mut tot_speedup,
[INFO] [stdout] 290 | |             &mut tot_ideal_speedup,
[INFO] [stdout] ...   |
[INFO] [stdout] 297 | |             &mut edge_stat_vec
[INFO] [stdout] 298 | |         );
[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] 287 |         let _ = insertion_test_qube_hash_step(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: icentral-neighbors v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e6d4ecc78a2e195bc335c7999b6a08680379b4f7d580f625d1a243a0117dc7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d4ecc78a2e195bc335c7999b6a08680379b4f7d580f625d1a243a0117dc7aa", kill_on_drop: false }`
[INFO] [stdout] e6d4ecc78a2e195bc335c7999b6a08680379b4f7d580f625d1a243a0117dc7aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b57c268149485e099aa9c68fdd0b5c7764b0c29dd6c80756a29b036680bfe8e
[INFO] running `Command { std: "docker" "start" "-a" "9b57c268149485e099aa9c68fdd0b5c7764b0c29dd6c80756a29b036680bfe8e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `icentral_graph_hash::*`
[INFO] [stderr]   --> src/imports.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub(crate) use icentral_graph_hash::*;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ideal_speedup: f64 = f64::default();;
[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_edges_to_insert`
[INFO] [stderr]  --> src/test_qube_insertion.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     num_edges_to_insert: u32) 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[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/test_qube_insertion.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[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: unused variable: `scores`
[INFO] [stderr]    --> src/test_qube_insertion.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut scores = brandes_betweenness_centrality(graph)?;
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/test_qube_insertion.rs:174:9
[INFO] [stderr]     |
[INFO] [stderr] 174 |     for i in 0..num_edges_to_insert {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `brandes_time` is never read
[INFO] [stderr]    --> src/test_qube_insertion.rs:135:29
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let mut brandes_time  = Duration::from_secs(0);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `muc_find_time` is never read
[INFO] [stderr]    --> src/test_qube_insertion.rs:136:29
[INFO] [stderr]     |
[INFO] [stderr] 136 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `src` is never read
[INFO] [stderr]    --> src/test_qube_insertion.rs:177:35
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let mut src:     NodeId = NodeId::default();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `dst` is never read
[INFO] [stderr]    --> src/test_qube_insertion.rs:178:35
[INFO] [stderr]     |
[INFO] [stderr] 178 |         let mut dst:     NodeId = NodeId::default();
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rand_edge_vec`
[INFO] [stderr]   --> src/test_qube_p.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     rand_edge_vec: &Vec<Edge>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_edge_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]    --> src/test_qube_p.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |     let scores: BetweennessScores 
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `muc_find_time` is never read
[INFO] [stderr]    --> src/test_qube_p.rs:123:29
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num_edges_to_insert`
[INFO] [stderr]   --> src/test_qube_insertion_hash.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     num_edges_to_insert:  usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_edges_to_insert`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ideal_speedup` is never read
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:104:34
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ideal_speedup: f64 = f64::default();;
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[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/test_qube_insertion_hash.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |     let mut g = GH::new_from_graph_ref(&*graph, "insertion_test_qube_hash::graph_hash");
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `scores`
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |     let mut scores: BetweennessScores = brandes_bc_hash_out(
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `brandes_time` is never read
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:214:28
[INFO] [stderr]     |
[INFO] [stderr] 214 |     let mut brandes_time = Duration::from_secs(0);
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `muc_find_time` is never read
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:216:29
[INFO] [stderr]     |
[INFO] [stderr] 216 |     let mut muc_find_time = Duration::from_secs(0);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/test_qube_insertion.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[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] 69 |     let _ = graph.muc_mut(muc_id).compute_bc(&mut scores, None);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/test_qube_p.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     graph.muc_mut(muc_id).compute_bc(
[INFO] [stderr] 47 | |         &mut scores, 
[INFO] [stderr] 48 | |         num_iter
[INFO] [stderr] 49 | |     );
[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] 46 |     let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/test_qube_p.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 | /         exp_qube_p_step(
[INFO] [stderr] 160 | |             &mut tot_speedup,
[INFO] [stderr] 161 | |             &mut tot_time,
[INFO] [stderr] 162 | |             &mut speedup_vec,
[INFO] [stderr] ...   |
[INFO] [stderr] 168 | |             &mut edge_stat_vec
[INFO] [stderr] 169 | |         );
[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] 159 |         let _ = exp_qube_p_step(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/test_qube_insertion_hash.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 | /         graph.muc_mut(muc_id).compute_bc(
[INFO] [stderr] 68 | |             &mut scores, 
[INFO] [stderr] 69 | |             max_iter
[INFO] [stderr] 70 | |         );
[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] 67 |         let _ = graph.muc_mut(muc_id).compute_bc(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/test_qube_insertion_hash.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 | /         graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stderr] 75 | |             &mut scores, 
[INFO] [stderr] 76 | |             rand_edge.src, 
[INFO] [stderr] 77 | |             rand_edge.dst, 
[INFO] [stderr] 78 | |             None
[INFO] [stderr] 79 | |         );
[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] 74 |         let _ = graph.muc_mut(muc_id).compute_bc_inc(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 | /         insertion_test_qube_hash_step(
[INFO] [stderr] 288 | |             &brandes_time,
[INFO] [stderr] 289 | |             &mut tot_speedup,
[INFO] [stderr] 290 | |             &mut tot_ideal_speedup,
[INFO] [stderr] ...   |
[INFO] [stderr] 297 | |             &mut edge_stat_vec
[INFO] [stderr] 298 | |         );
[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] 287 |         let _ = insertion_test_qube_hash_step(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `icentral-test-qube` (lib) generated 27 warnings (run `cargo fix --lib -p icentral-test-qube` to apply 12 suggestions)
[INFO] [stderr] warning: `icentral-test-qube` (lib test) generated 27 warnings (27 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: icentral-neighbors v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/icentral_test_qube-a0f2b9c68eaa5ee4)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests icentral_test_qube
[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] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/test_qube_insertion_hash.rs:104:49
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut ideal_speedup: f64 = f64::default();;
[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" "9b57c268149485e099aa9c68fdd0b5c7764b0c29dd6c80756a29b036680bfe8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b57c268149485e099aa9c68fdd0b5c7764b0c29dd6c80756a29b036680bfe8e", kill_on_drop: false }`
[INFO] [stdout] 9b57c268149485e099aa9c68fdd0b5c7764b0c29dd6c80756a29b036680bfe8e
