[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] checking nickyc975/PregelR against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickyc975%2FPregelR" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nickyc975/PregelR on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-31/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 477dd2c95b274be6e0e5857ff84a3725d234ecc2381ce3ae1fb33a21941457f7
[INFO] running `Command { std: "docker" "start" "-a" "477dd2c95b274be6e0e5857ff84a3725d234ecc2381ce3ae1fb33a21941457f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "477dd2c95b274be6e0e5857ff84a3725d234ecc2381ce3ae1fb33a21941457f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "477dd2c95b274be6e0e5857ff84a3725d234ecc2381ce3ae1fb33a21941457f7", kill_on_drop: false }`
[INFO] [stdout] 477dd2c95b274be6e0e5857ff84a3725d234ecc2381ce3ae1fb33a21941457f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cffa3e44194846f3302f31a53a38d971bc3857b03d83bf09b06330f5086d1191
[INFO] running `Command { std: "docker" "start" "-a" "cffa3e44194846f3302f31a53a38d971bc3857b03d83bf09b06330f5086d1191", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking pregel v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/pregel/worker.rs (1 fix)
[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: 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: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking pregel v0.1.0 (/tmp/fixit)
[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: `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: `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: `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: `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: `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: `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: `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: `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: `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: `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: `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/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: `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/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: `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: `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: 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: 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: 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: 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: 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: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "cffa3e44194846f3302f31a53a38d971bc3857b03d83bf09b06330f5086d1191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffa3e44194846f3302f31a53a38d971bc3857b03d83bf09b06330f5086d1191", kill_on_drop: false }`
[INFO] [stdout] cffa3e44194846f3302f31a53a38d971bc3857b03d83bf09b06330f5086d1191