[INFO] cloning repository https://github.com/divyanshvn/map-reduce
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divyanshvn/map-reduce" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivyanshvn%2Fmap-reduce", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivyanshvn%2Fmap-reduce'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7619eb47d0689d1c974cec1729c4d4093e3f5e9
[INFO] testing divyanshvn/map-reduce against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivyanshvn%2Fmap-reduce" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/divyanshvn/map-reduce
[INFO] finished tweaking git repo https://github.com/divyanshvn/map-reduce
[INFO] tweaked toml for git repo https://github.com/divyanshvn/map-reduce written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/divyanshvn/map-reduce on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/divyanshvn/map-reduce 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tarpc v0.37.0
[INFO] [stderr]   Downloaded tarpc-plugins v0.14.1
[INFO] [stderr]   Downloaded opentelemetry v0.30.0
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.30.0
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.31.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.30.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f7d9dda0f4ea0bf7f9e07f6f0d37ba78fd731579803d9326d28690674cf7253
[INFO] running `Command { std: "docker" "start" "-a" "5f7d9dda0f4ea0bf7f9e07f6f0d37ba78fd731579803d9326d28690674cf7253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f7d9dda0f4ea0bf7f9e07f6f0d37ba78fd731579803d9326d28690674cf7253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7d9dda0f4ea0bf7f9e07f6f0d37ba78fd731579803d9326d28690674cf7253", kill_on_drop: false }`
[INFO] [stdout] 5f7d9dda0f4ea0bf7f9e07f6f0d37ba78fd731579803d9326d28690674cf7253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d570643f9ac6137a64b0b9a447f3ac152cefffa9cf0214a4b2b1117776c24453
[INFO] running `Command { std: "docker" "start" "-a" "d570643f9ac6137a64b0b9a447f3ac152cefffa9cf0214a4b2b1117776c24453", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.30.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.23
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.9.4
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.11
[INFO] [stderr]    Compiling tarpc-plugins v0.14.1
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling pin-project v1.1.11
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling opentelemetry v0.30.0
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling opentelemetry_sdk v0.30.0
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling tracing-opentelemetry v0.31.0
[INFO] [stderr]    Compiling tarpc v0.37.0
[INFO] [stderr]    Compiling map-reduce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread::available_parallelism`
[INFO] [stdout]  --> src/master.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::available_parallelism;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::atomic::AtomicU32`
[INFO] [stdout]   --> src/master.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections::VecDeque, sync::atomic::AtomicU32};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LinkedList` and `Read`
[INFO] [stdout]  --> src/worker.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, LinkedList},
[INFO] [stdout]   |                            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     io::{Read, Write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/worker.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/master.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `worker_id`
[INFO] [stdout]   --> src/master.rs:36:67
[INFO] [stdout]    |
[INFO] [stdout] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stdout]    |                                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_worker_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/master.rs:40:36
[INFO] [stdout]    |
[INFO] [stdout] 40 |     async fn are_you_running(self, context: tarpc::context::Context) -> bool {
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/worker.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         context: tarpc::context::Context,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/worker.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         context: tarpc::context::Context,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/worker.rs:144:25
[INFO] [stdout]     |
[INFO] [stdout] 144 |     async fn exit(self, context: tarpc::context::Context) -> u8 {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/main.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn wc_map_fn(filename: &str, text: &str) -> Vec<(String, String)> {
[INFO] [stdout]    |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn wc_reduce_fn(key: &str, values: &Vec<String>) -> String {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     for i in 0..NUM_WORKERS {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Map` and `Reduce` are never constructed
[INFO] [stdout]   --> src/master.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum WorkerTask {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 24 |     Map(u32, u32, fn(&str, &str) -> Vec<(String, String)>), // (num, n_reduce, fn)
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     Reduce(u32, u32, fn(&str, &Vec<String>) -> String),     // (num, n_map, fn)
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WorkerTask` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worker_id` is never read
[INFO] [stdout]   --> src/master.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     async fn give_me_task(worker_id: u32) -> WorkerTask;
[INFO] [stdout]    |              ------------ ^^^^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MasterRpcRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.81s
[INFO] running `Command { std: "docker" "inspect" "d570643f9ac6137a64b0b9a447f3ac152cefffa9cf0214a4b2b1117776c24453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d570643f9ac6137a64b0b9a447f3ac152cefffa9cf0214a4b2b1117776c24453", kill_on_drop: false }`
[INFO] [stdout] d570643f9ac6137a64b0b9a447f3ac152cefffa9cf0214a4b2b1117776c24453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5141521bc258122934b6481aaf087488ecf45eebc51695a8c2881b27fde40ac3
[INFO] running `Command { std: "docker" "start" "-a" "5141521bc258122934b6481aaf087488ecf45eebc51695a8c2881b27fde40ac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling map-reduce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread::available_parallelism`
[INFO] [stdout]  --> src/master.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread::available_parallelism;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::atomic::AtomicU32`
[INFO] [stdout]   --> src/master.rs:10:34
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{collections::VecDeque, sync::atomic::AtomicU32};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LinkedList` and `Read`
[INFO] [stdout]  --> src/worker.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, LinkedList},
[INFO] [stdout]   |                            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     io::{Read, Write},
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/worker.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/master.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `worker_id`
[INFO] [stdout]   --> src/master.rs:36:67
[INFO] [stdout]    |
[INFO] [stdout] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stdout]    |                                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_worker_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/master.rs:40:36
[INFO] [stdout]    |
[INFO] [stdout] 40 |     async fn are_you_running(self, context: tarpc::context::Context) -> bool {
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> src/worker.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         context: tarpc::context::Context,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/worker.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         context: tarpc::context::Context,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> src/worker.rs:144:25
[INFO] [stdout]     |
[INFO] [stdout] 144 |     async fn exit(self, context: tarpc::context::Context) -> u8 {
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/main.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn wc_map_fn(filename: &str, text: &str) -> Vec<(String, String)> {
[INFO] [stdout]    |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn wc_reduce_fn(key: &str, values: &Vec<String>) -> String {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     for i in 0..NUM_WORKERS {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Map` and `Reduce` are never constructed
[INFO] [stdout]   --> src/master.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum WorkerTask {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 24 |     Map(u32, u32, fn(&str, &str) -> Vec<(String, String)>), // (num, n_reduce, fn)
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 25 |     Reduce(u32, u32, fn(&str, &Vec<String>) -> String),     // (num, n_map, fn)
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WorkerTask` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `worker_id` is never read
[INFO] [stdout]   --> src/master.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |     async fn give_me_task(worker_id: u32) -> WorkerTask;
[INFO] [stdout]    |              ------------ ^^^^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MasterRpcRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "5141521bc258122934b6481aaf087488ecf45eebc51695a8c2881b27fde40ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5141521bc258122934b6481aaf087488ecf45eebc51695a8c2881b27fde40ac3", kill_on_drop: false }`
[INFO] [stdout] 5141521bc258122934b6481aaf087488ecf45eebc51695a8c2881b27fde40ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4badf4eec4c9651b1e38cb2f0577ba4c018bc78776e86a401a5351fee36050e7
[INFO] running `Command { std: "docker" "start" "-a" "4badf4eec4c9651b1e38cb2f0577ba4c018bc78776e86a401a5351fee36050e7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::thread::available_parallelism`
[INFO] [stderr]  --> src/master.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread::available_parallelism;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sync::atomic::AtomicU32`
[INFO] [stderr]   --> src/master.rs:10:34
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::{collections::VecDeque, sync::atomic::AtomicU32};
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `LinkedList` and `Read`
[INFO] [stderr]  --> src/worker.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 |     collections::{HashMap, LinkedList},
[INFO] [stderr]   |                            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 5 |     io::{Read, Write},
[INFO] [stderr]   |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]   --> src/worker.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde::Serialize;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/master.rs:36:33
[INFO] [stderr]    |
[INFO] [stderr] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stderr]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `worker_id`
[INFO] [stderr]   --> src/master.rs:36:67
[INFO] [stderr]    |
[INFO] [stderr] 36 |     async fn give_me_task(self, context: tarpc::context::Context, worker_id: u32) -> WorkerTask {
[INFO] [stderr]    |                                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_worker_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/master.rs:40:36
[INFO] [stderr]    |
[INFO] [stderr] 40 |     async fn are_you_running(self, context: tarpc::context::Context) -> bool {
[INFO] [stderr]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]   --> src/worker.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |         context: tarpc::context::Context,
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/worker.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         context: tarpc::context::Context,
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/worker.rs:144:25
[INFO] [stderr]     |
[INFO] [stderr] 144 |     async fn exit(self, context: tarpc::context::Context) -> u8 {
[INFO] [stderr]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/main.rs:19:14
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn wc_map_fn(filename: &str, text: &str) -> Vec<(String, String)> {
[INFO] [stderr]    |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/main.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn wc_reduce_fn(key: &str, values: &Vec<String>) -> String {
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     for i in 0..NUM_WORKERS {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Map` and `Reduce` are never constructed
[INFO] [stderr]   --> src/master.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub enum WorkerTask {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] 24 |     Map(u32, u32, fn(&str, &str) -> Vec<(String, String)>), // (num, n_reduce, fn)
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 25 |     Reduce(u32, u32, fn(&str, &Vec<String>) -> String),     // (num, n_map, fn)
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `WorkerTask` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `worker_id` is never read
[INFO] [stderr]   --> src/master.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |     async fn give_me_task(worker_id: u32) -> WorkerTask;
[INFO] [stderr]    |              ------------ ^^^^^^^^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MasterRpcRequest` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `map-reduce` (bin "map-reduce" test) generated 15 warnings (run `cargo fix --bin "map-reduce" -p map-reduce --tests` to apply 13 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/map_reduce-f12198f3a8517da6)
[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" "4badf4eec4c9651b1e38cb2f0577ba4c018bc78776e86a401a5351fee36050e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4badf4eec4c9651b1e38cb2f0577ba4c018bc78776e86a401a5351fee36050e7", kill_on_drop: false }`
[INFO] [stdout] 4badf4eec4c9651b1e38cb2f0577ba4c018bc78776e86a401a5351fee36050e7
