[INFO] cloning repository https://github.com/nickyc975/PregelR
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickyc975/PregelR" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickyc975%2FPregelR", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickyc975%2FPregelR'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c185eddb49f1381a29aedf53dfd1fad2e4157ea9
[INFO] testing nickyc975/PregelR against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickyc975%2FPregelR" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nickyc975/PregelR on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nickyc975/PregelR
[INFO] finished tweaking git repo https://github.com/nickyc975/PregelR
[INFO] tweaked toml for git repo https://github.com/nickyc975/PregelR written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/nickyc975/PregelR already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 321a4d3ae49adfb438b270d42c6b08a8a0196f904e15adb7d2a267110be104d5
[INFO] running `Command { std: "docker" "start" "-a" "321a4d3ae49adfb438b270d42c6b08a8a0196f904e15adb7d2a267110be104d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "321a4d3ae49adfb438b270d42c6b08a8a0196f904e15adb7d2a267110be104d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321a4d3ae49adfb438b270d42c6b08a8a0196f904e15adb7d2a267110be104d5", kill_on_drop: false }`
[INFO] [stdout] 321a4d3ae49adfb438b270d42c6b08a8a0196f904e15adb7d2a267110be104d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c29fd4b29db3d3058c6b31927f46b9d0c8ac8d87bdb5231c7e5d8e274cd9745
[INFO] running `Command { std: "docker" "start" "-a" "1c29fd4b29db3d3058c6b31927f46b9d0c8ac8d87bdb5231c7e5d8e274cd9745", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pregel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/pregel/worker.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn mark_as_done(&mut self, id: i64) {
[INFO] [stdout]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/pregel/master.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     state: State,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `superstep`
[INFO] [stdout]   --> src/pregel/master.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     superstep: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nworkers`
[INFO] [stdout]   --> src/pregel/master.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     nworkers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `n_active_workers`
[INFO] [stdout]   --> src/pregel/master.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     n_active_workers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]   --> src/pregel/master.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     workers: HashMap<i64, Worker<'a, V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `work_path`
[INFO] [stdout]   --> src/pregel/master.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     work_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/master.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     edges_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/master.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     vertices_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/master.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     edge_parser: Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/master.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertex_parser: Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/master.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     compute: Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `combiner`
[INFO] [stdout]   --> src/pregel/master.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     combiner: Option<Box<dyn Combine<M>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `aggregators`
[INFO] [stdout]   --> src/pregel/master.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     aggregators: Vec<Rc<dyn Aggregate<V>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertices: HashMap<i64, Vertex<V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/worker.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     edges_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/worker.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     vertices_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     edge_parser: &'a Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     vertex_parser: &'a Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/worker.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     compute: &'a Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pregel/worker.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn local_n_vertices(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_edges`
[INFO] [stdout]   --> src/pregel/worker.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn local_n_edges(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "1c29fd4b29db3d3058c6b31927f46b9d0c8ac8d87bdb5231c7e5d8e274cd9745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c29fd4b29db3d3058c6b31927f46b9d0c8ac8d87bdb5231c7e5d8e274cd9745", kill_on_drop: false }`
[INFO] [stdout] 1c29fd4b29db3d3058c6b31927f46b9d0c8ac8d87bdb5231c7e5d8e274cd9745
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffd3b44d7965d37b987d8f7dc35384a56a4848500b9ae0da9f05c6d534d32618
[INFO] running `Command { std: "docker" "start" "-a" "ffd3b44d7965d37b987d8f7dc35384a56a4848500b9ae0da9f05c6d534d32618", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/pregel/worker.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn mark_as_done(&mut self, id: i64) {
[INFO] [stdout]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/pregel/master.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     state: State,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `superstep`
[INFO] [stdout]   --> src/pregel/master.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     superstep: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nworkers`
[INFO] [stdout]   --> src/pregel/master.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     nworkers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `n_active_workers`
[INFO] [stdout]   --> src/pregel/master.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     n_active_workers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]   --> src/pregel/master.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     workers: HashMap<i64, Worker<'a, V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `work_path`
[INFO] [stdout]   --> src/pregel/master.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     work_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/master.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     edges_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/master.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     vertices_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/master.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     edge_parser: Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/master.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertex_parser: Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/master.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     compute: Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `combiner`
[INFO] [stdout]   --> src/pregel/master.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     combiner: Option<Box<dyn Combine<M>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `aggregators`
[INFO] [stdout]   --> src/pregel/master.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     aggregators: Vec<Rc<dyn Aggregate<V>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertices: HashMap<i64, Vertex<V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/worker.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     edges_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/worker.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     vertices_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     edge_parser: &'a Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     vertex_parser: &'a Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/worker.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     compute: &'a Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pregel/worker.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn local_n_vertices(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_edges`
[INFO] [stdout]   --> src/pregel/worker.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn local_n_edges(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pregel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/pregel/worker.rs:112:32
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn mark_as_done(&mut self, id: i64) {
[INFO] [stdout]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]   --> src/pregel/master.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     state: State,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `superstep`
[INFO] [stdout]   --> src/pregel/master.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     superstep: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `nworkers`
[INFO] [stdout]   --> src/pregel/master.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     nworkers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `n_active_workers`
[INFO] [stdout]   --> src/pregel/master.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     n_active_workers: i64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `workers`
[INFO] [stdout]   --> src/pregel/master.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     workers: HashMap<i64, Worker<'a, V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `work_path`
[INFO] [stdout]   --> src/pregel/master.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     work_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/master.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     edges_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/master.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     vertices_path: Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/master.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     edge_parser: Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/master.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertex_parser: Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/master.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     compute: Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `combiner`
[INFO] [stdout]   --> src/pregel/master.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     combiner: Option<Box<dyn Combine<M>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `aggregators`
[INFO] [stdout]   --> src/pregel/master.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     aggregators: Vec<Rc<dyn Aggregate<V>>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     vertices: HashMap<i64, Vertex<V, E, M>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edges_path`
[INFO] [stdout]   --> src/pregel/worker.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     edges_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertices_path`
[INFO] [stdout]   --> src/pregel/worker.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     vertices_path: &'a Box<Path>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `edge_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     edge_parser: &'a Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vertex_parser`
[INFO] [stdout]   --> src/pregel/worker.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     vertex_parser: &'a Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `compute`
[INFO] [stdout]   --> src/pregel/worker.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     compute: &'a Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/pregel/worker.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_vertices`
[INFO] [stdout]   --> src/pregel/worker.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn local_n_vertices(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `local_n_edges`
[INFO] [stdout]   --> src/pregel/worker.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn local_n_edges(&self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.56s
[INFO] running `Command { std: "docker" "inspect" "ffd3b44d7965d37b987d8f7dc35384a56a4848500b9ae0da9f05c6d534d32618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd3b44d7965d37b987d8f7dc35384a56a4848500b9ae0da9f05c6d534d32618", kill_on_drop: false }`
[INFO] [stdout] ffd3b44d7965d37b987d8f7dc35384a56a4848500b9ae0da9f05c6d534d32618
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ede860bb57cc90da789b95ec55aa152c80d1ca78c5a9f14e621801a1f92e42e
[INFO] running `Command { std: "docker" "start" "-a" "5ede860bb57cc90da789b95ec55aa152c80d1ca78c5a9f14e621801a1f92e42e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]    --> src/pregel/worker.rs:112:32
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn mark_as_done(&mut self, id: i64) {
[INFO] [stderr]     |                                ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `state`
[INFO] [stderr]   --> src/pregel/master.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     state: State,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `superstep`
[INFO] [stderr]   --> src/pregel/master.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     superstep: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `nworkers`
[INFO] [stderr]   --> src/pregel/master.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     nworkers: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `n_active_workers`
[INFO] [stderr]   --> src/pregel/master.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     n_active_workers: i64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `workers`
[INFO] [stderr]   --> src/pregel/master.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     workers: HashMap<i64, Worker<'a, V, E, M>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `work_path`
[INFO] [stderr]   --> src/pregel/master.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     work_path: Box<Path>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `edges_path`
[INFO] [stderr]   --> src/pregel/master.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     edges_path: Box<Path>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vertices_path`
[INFO] [stderr]   --> src/pregel/master.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     vertices_path: Box<Path>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `edge_parser`
[INFO] [stderr]   --> src/pregel/master.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     edge_parser: Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vertex_parser`
[INFO] [stderr]   --> src/pregel/master.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     vertex_parser: Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `compute`
[INFO] [stderr]   --> src/pregel/master.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     compute: Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `combiner`
[INFO] [stderr]   --> src/pregel/master.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     combiner: Option<Box<dyn Combine<M>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `aggregators`
[INFO] [stderr]   --> src/pregel/master.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     aggregators: Vec<Rc<dyn Aggregate<V>>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vertices`
[INFO] [stderr]   --> src/pregel/worker.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     vertices: HashMap<i64, Vertex<V, E, M>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `edges_path`
[INFO] [stderr]   --> src/pregel/worker.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     edges_path: &'a Box<Path>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vertices_path`
[INFO] [stderr]   --> src/pregel/worker.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     vertices_path: &'a Box<Path>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `edge_parser`
[INFO] [stderr]   --> src/pregel/worker.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     edge_parser: &'a Box<dyn Fn(String) -> (i64, i64, E)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `vertex_parser`
[INFO] [stderr]   --> src/pregel/worker.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     vertex_parser: &'a Box<dyn Fn(String) -> (i64, V)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `compute`
[INFO] [stderr]   --> src/pregel/worker.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     compute: &'a Box<dyn Fn(&mut Vertex<V, E, M>)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pregel/worker.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `local_n_vertices`
[INFO] [stderr]   --> src/pregel/worker.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn local_n_vertices(&self) -> i64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `local_n_edges`
[INFO] [stderr]   --> src/pregel/worker.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn local_n_edges(&self) -> i64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pregel` (lib) generated 23 warnings
[INFO] [stderr] warning: `pregel` (lib test) generated 23 warnings (23 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pregel-54717130ab76d752)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pregel-658e3b6c259c34f4)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pregel
[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] [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" "5ede860bb57cc90da789b95ec55aa152c80d1ca78c5a9f14e621801a1f92e42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ede860bb57cc90da789b95ec55aa152c80d1ca78c5a9f14e621801a1f92e42e", kill_on_drop: false }`
[INFO] [stdout] 5ede860bb57cc90da789b95ec55aa152c80d1ca78c5a9f14e621801a1f92e42e