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[INFO] [stdout] 8374676aeb82d49fe9a758e1a2cca6cf6a8cceb2
[INFO] checking isubasinghe/diff-dataflow-examples against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisubasinghe%2Fdiff-dataflow-examples" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/isubasinghe/diff-dataflow-examples on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
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[INFO] started tweaking git repo https://github.com/isubasinghe/diff-dataflow-examples
[INFO] finished tweaking git repo https://github.com/isubasinghe/diff-dataflow-examples
[INFO] tweaked toml for git repo https://github.com/isubasinghe/diff-dataflow-examples written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/isubasinghe/diff-dataflow-examples already has a lockfile, it will not be regenerated
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[INFO] [stdout] f5de84ad87c6551671dab967735d842d261a1ab41dee974502fa313e89693b81
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[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_derive v1.0.127
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[INFO] [stderr]     Checking graph_map v0.1.0
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[INFO] [stderr]     Checking timely v0.10.0
[INFO] [stderr]     Checking differential-dataflow v0.10.0
[INFO] [stderr]     Checking graphs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `differential_dataflow::lattice::Lattice`
[INFO] [stdout]  --> src/bin/neighbourhood.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use differential_dataflow::lattice::Lattice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::lattice::Lattice`
[INFO] [stdout]  --> src/bin/neighbourhood.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use differential_dataflow::lattice::Lattice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::lattice::Lattice`
[INFO] [stdout]  --> src/bin/reachable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use differential_dataflow::lattice::Lattice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Collection`
[INFO] [stdout]  --> src/bin/reachable.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | use differential_dataflow::{AsCollection, Collection};
[INFO] [stdout]   |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Edge` and `Iter`
[INFO] [stdout]  --> src/bin/reachable.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use graphs::{Iter, Node, Edge};
[INFO] [stdout]   |              ^^^^        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timely::dataflow::Scope`
[INFO] [stdout]  --> src/bin/reachable.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use timely::dataflow::Scope;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::Iterate`
[INFO] [stdout]  --> src/bin/reachable.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use differential_dataflow::operators::Iterate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::join::Join`
[INFO] [stdout]  --> src/bin/reachable.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use differential_dataflow::operators::join::Join;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::reduce::Threshold`
[INFO] [stdout]  --> src/bin/reachable.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use differential_dataflow::operators::reduce::Threshold;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `neighbours`
[INFO] [stdout]   --> src/bin/neighbourhood.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let neighbours = 
[INFO] [stdout]    |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neighbours`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::lattice::Lattice`
[INFO] [stdout]  --> src/bin/reachable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use differential_dataflow::lattice::Lattice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Collection`
[INFO] [stdout]  --> src/bin/reachable.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | use differential_dataflow::{AsCollection, Collection};
[INFO] [stdout]   |                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Edge` and `Iter`
[INFO] [stdout]  --> src/bin/reachable.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use graphs::{Iter, Node, Edge};
[INFO] [stdout]   |              ^^^^        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `timely::dataflow::Scope`
[INFO] [stdout]  --> src/bin/reachable.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use timely::dataflow::Scope;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::Iterate`
[INFO] [stdout]  --> src/bin/reachable.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use differential_dataflow::operators::Iterate;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::join::Join`
[INFO] [stdout]  --> src/bin/reachable.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use differential_dataflow::operators::join::Join;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `differential_dataflow::operators::reduce::Threshold`
[INFO] [stdout]  --> src/bin/reachable.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use differential_dataflow::operators::reduce::Threshold;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `neighbours`
[INFO] [stdout]   --> src/bin/neighbourhood.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |             let neighbours = 
[INFO] [stdout]    |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neighbours`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhoods` is never used
[INFO] [stdout]    --> src/bin/neighbourhood.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn neighbourhoods<G>(edges: Collection<G, Edge<Node>>, source: Collection<G, (Node, Iter)>) -> Collection<G, (Node, Node)> 
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbourhoods` is never used
[INFO] [stdout]    --> src/bin/neighbourhood.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn neighbourhoods<G>(edges: Collection<G, Edge<Node>>, source: Collection<G, (Node, Iter)>) -> Collection<G, (Node, Node)> 
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.59s
[INFO] running `Command { std: "docker" "inspect" "f5de84ad87c6551671dab967735d842d261a1ab41dee974502fa313e89693b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5de84ad87c6551671dab967735d842d261a1ab41dee974502fa313e89693b81", kill_on_drop: false }`
[INFO] [stdout] f5de84ad87c6551671dab967735d842d261a1ab41dee974502fa313e89693b81