[INFO] cloning repository https://github.com/raja-dettex/whirlpool-maelstrom-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raja-dettex/whirlpool-maelstrom-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Fwhirlpool-maelstrom-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Fwhirlpool-maelstrom-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb9c5300c5214cfcf5962358066779e5adeaaba3
[INFO] testing raja-dettex/whirlpool-maelstrom-challenge against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraja-dettex%2Fwhirlpool-maelstrom-challenge" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/raja-dettex/whirlpool-maelstrom-challenge
[INFO] finished tweaking git repo https://github.com/raja-dettex/whirlpool-maelstrom-challenge
[INFO] tweaked toml for git repo https://github.com/raja-dettex/whirlpool-maelstrom-challenge written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raja-dettex/whirlpool-maelstrom-challenge on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/raja-dettex/whirlpool-maelstrom-challenge 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ulid v1.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b57c184ff502f6f8ebed8f7fc1506708b1bfffcf43ed2e1cd7c47ce91757e386
[INFO] running `Command { std: "docker" "start" "-a" "b57c184ff502f6f8ebed8f7fc1506708b1bfffcf43ed2e1cd7c47ce91757e386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57c184ff502f6f8ebed8f7fc1506708b1bfffcf43ed2e1cd7c47ce91757e386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57c184ff502f6f8ebed8f7fc1506708b1bfffcf43ed2e1cd7c47ce91757e386", kill_on_drop: false }`
[INFO] [stdout] b57c184ff502f6f8ebed8f7fc1506708b1bfffcf43ed2e1cd7c47ce91757e386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 4240f4412a3c4b338ba87101c309f8b28a5aea029e7fcdd6d2879920982566ba
[INFO] running `Command { std: "docker" "start" "-a" "4240f4412a3c4b338ba87101c309f8b28a5aea029e7fcdd6d2879920982566ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ulid v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling whirlpool-malestorm-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read` and `sync::Arc`
[INFO] [stdout]  --> src/lib.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::{ BufRead, Read, StdoutLock, Write}, sync::Arc, thread};
[INFO] [stdout]   |                          ^^^^                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result::Result::Ok as resultOK`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::result::Result::Ok as resultOK;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:122:63
[INFO] [stdout]     |
[INFO] [stdout] 122 |                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout]     |                                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout] 122 +                 let input : Message<P> = serde_json::from_str(&input_str).context("failed to deserialize input lines")?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |             let mut stdin = std::io::stdin();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut stdin = stdin.lines(); 
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut stdin = std::io::stdin().lock();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             node.step(input, &mut stdout);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |             let _ = node.step(input, &mut stdout);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `fmt::format`
[INFO] [stdout]  --> src/bin/unique-ids.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::format, io::{BufRead, StdoutLock, Write}};
[INFO] [stdout]   |           ^^^^^^^^^^^       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/bin/unique-ids.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{bail, Context, Ok};
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/bin/unique-ids.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Body` and `Message`
[INFO] [stdout]  --> src/bin/unique-ids.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stdout]   |                                                ^^^^         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]   --> src/bin/echo.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::io::{BufRead, StdoutLock, Write};
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]   --> src/bin/echo.rs:30:23
[INFO] [stdout]    |
[INFO] [stdout] 30 | use anyhow::{Context, bail};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]   --> src/bin/echo.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Body` and `Message`
[INFO] [stdout]   --> src/bin/echo.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stdout]    |                                                ^^^^         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `fmt::format`
[INFO] [stdout]  --> src/bin/broadcast.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::{HashMap, HashSet}, fmt::format, io::{BufRead, StdoutLock, Write}, thread};
[INFO] [stdout]   |                                            ^^^^^^^^^^^       ^^^^^^^              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/bin/broadcast.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{bail, Context, Ok};
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/bin/broadcast.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo`
[INFO] [stdout]   --> src/bin/echo.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Payload::Echo { echo } => { 
[INFO] [stdout]    |                             ^^^^ help: try ignoring the field: `echo: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/bin/echo.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let state = EachNode { id : 0};
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/broadcast.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...                   let (mut already_known , mut notify_of)  : (HashSet<_>, HashSet<_>) = self.messages.iter().copied()
[INFO] [stdout]    |                            ----^^^^^^^^^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg_communicated` is never read
[INFO] [stdout]   --> src/bin/broadcast.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct BroadcastNode { 
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     msg_communicated : HashMap<usize, HashSet<usize>>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BroadcastNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:87:25
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.80s
[INFO] running `Command { std: "docker" "inspect" "4240f4412a3c4b338ba87101c309f8b28a5aea029e7fcdd6d2879920982566ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4240f4412a3c4b338ba87101c309f8b28a5aea029e7fcdd6d2879920982566ba", kill_on_drop: false }`
[INFO] [stdout] 4240f4412a3c4b338ba87101c309f8b28a5aea029e7fcdd6d2879920982566ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 37236bcda86a70f1a0d29968888f99746a970d357dc3c6633d0a08aca09670e3
[INFO] running `Command { std: "docker" "start" "-a" "37236bcda86a70f1a0d29968888f99746a970d357dc3c6633d0a08aca09670e3", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `Read` and `sync::Arc`
[INFO] [stdout]  --> src/lib.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::{ BufRead, Read, StdoutLock, Write}, sync::Arc, thread};
[INFO] [stdout]   |                          ^^^^                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling whirlpool-malestorm-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::result::Result::Ok as resultOK`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::result::Result::Ok as resultOK;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:122:63
[INFO] [stdout]     |
[INFO] [stdout] 122 |                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout]     |                                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout] 122 +                 let input : Message<P> = serde_json::from_str(&input_str).context("failed to deserialize input lines")?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |             let mut stdin = std::io::stdin();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut stdin = stdin.lines(); 
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut stdin = std::io::stdin().lock();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             node.step(input, &mut stdout);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |             let _ = node.step(input, &mut stdout);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `Write`, and `fmt::format`
[INFO] [stdout]  --> src/bin/broadcast.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{collections::{HashMap, HashSet}, fmt::format, io::{BufRead, StdoutLock, Write}, thread};
[INFO] [stdout]   |                                            ^^^^^^^^^^^       ^^^^^^^              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/bin/broadcast.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use anyhow::{bail, Context, Ok};
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/bin/broadcast.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `sync::Arc`
[INFO] [stdout]  --> src/lib.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::{ BufRead, Read, StdoutLock, Write}, sync::Arc, thread};
[INFO] [stdout]   |                          ^^^^                      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::result::Result::Ok as resultOK`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::result::Result::Ok as resultOK;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:122:63
[INFO] [stdout]     |
[INFO] [stdout] 122 |                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout]     |                                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stdout] 122 +                 let input : Message<P> = serde_json::from_str(&input_str).context("failed to deserialize input lines")?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `fmt::format`
[INFO] [stdout]  --> src/bin/unique-ids.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt::format, io::{BufRead, StdoutLock, Write}};
[INFO] [stdout]   |           ^^^^^^^^^^^       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/bin/unique-ids.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use anyhow::{bail, Context, Ok};
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/bin/unique-ids.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Body` and `Message`
[INFO] [stdout]  --> src/bin/unique-ids.rs:7:48
[INFO] [stdout]   |
[INFO] [stdout] 7 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stdout]   |                                                ^^^^         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]   --> src/bin/echo.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 | use std::io::{BufRead, StdoutLock, Write};
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]   --> src/bin/echo.rs:30:23
[INFO] [stdout]    |
[INFO] [stdout] 30 | use anyhow::{Context, bail};
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]   --> src/bin/echo.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Body` and `Message`
[INFO] [stdout]   --> src/bin/echo.rs:32:48
[INFO] [stdout]    |
[INFO] [stdout] 32 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stdout]    |                                                ^^^^         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/broadcast.rs:97:34
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...                   let (mut already_known , mut notify_of)  : (HashSet<_>, HashSet<_>) = self.messages.iter().copied()
[INFO] [stdout]    |                            ----^^^^^^^^^^^^^
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg_communicated` is never read
[INFO] [stdout]   --> src/bin/broadcast.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct BroadcastNode { 
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     msg_communicated : HashMap<usize, HashSet<usize>>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BroadcastNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 80 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/broadcast.rs:87:25
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         reply.send(&mut *output);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |                         let _ = reply.send(&mut *output);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:118:17
[INFO] [stdout]     |
[INFO] [stdout] 118 |             let mut stdin = std::io::stdin();
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:119:17
[INFO] [stdout]     |
[INFO] [stdout] 119 |             let mut stdin = stdin.lines(); 
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let mut stdin = std::io::stdin().lock();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |             stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 127 |             let _ = stdin_tx.send(Event::EOF);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:131:13
[INFO] [stdout]     |
[INFO] [stdout] 131 |             node.step(input, &mut stdout);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 131 |             let _ = node.step(input, &mut stdout);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo`
[INFO] [stdout]   --> src/bin/echo.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 |             Payload::Echo { echo } => { 
[INFO] [stdout]    |                             ^^^^ help: try ignoring the field: `echo: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/bin/echo.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let state = EachNode { id : 0};
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "37236bcda86a70f1a0d29968888f99746a970d357dc3c6633d0a08aca09670e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37236bcda86a70f1a0d29968888f99746a970d357dc3c6633d0a08aca09670e3", kill_on_drop: false }`
[INFO] [stdout] 37236bcda86a70f1a0d29968888f99746a970d357dc3c6633d0a08aca09670e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 24d93904db760edb3a93f3665272db2d72083ec8ddccc864c23afa1733791514
[INFO] running `Command { std: "docker" "start" "-a" "24d93904db760edb3a93f3665272db2d72083ec8ddccc864c23afa1733791514", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Read` and `sync::Arc`
[INFO] [stderr]  --> src/lib.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{io::{ BufRead, Read, StdoutLock, Write}, sync::Arc, thread};
[INFO] [stderr]   |                          ^^^^                      ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result::Result::Ok as resultOK`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::result::Result::Ok as resultOK;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:122:63
[INFO] [stderr]     |
[INFO] [stderr] 122 |                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stderr]     |                                                               ^          ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 122 -                 let input : Message<P> = serde_json::from_str((&input_str)).context("failed to deserialize input lines")?;
[INFO] [stderr] 122 +                 let input : Message<P> = serde_json::from_str(&input_str).context("failed to deserialize input lines")?;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:118:17
[INFO] [stderr]     |
[INFO] [stderr] 118 |             let mut stdin = std::io::stdin();
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |             let mut stdin = stdin.lines(); 
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let mut stdin = std::io::stdin().lock();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |             stdin_tx.send(Event::EOF);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let _ = stdin_tx.send(Event::EOF);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:131:13
[INFO] [stderr]     |
[INFO] [stderr] 131 |             node.step(input, &mut stdout);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let _ = node.step(input, &mut stdout);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `whirlpool-malestorm-challenge` (lib) generated 8 warnings (run `cargo fix --lib -p whirlpool-malestorm-challenge` to apply 6 suggestions)
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]   --> src/bin/echo.rs:28:15
[INFO] [stderr]    |
[INFO] [stderr] 28 | use std::io::{BufRead, StdoutLock, Write};
[INFO] [stderr]    |               ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bail`
[INFO] [stderr]   --> src/bin/echo.rs:30:23
[INFO] [stderr]    |
[INFO] [stderr] 30 | use anyhow::{Context, bail};
[INFO] [stderr]    |                       ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `de::DeserializeOwned`
[INFO] [stderr]   --> src/bin/echo.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Body` and `Message`
[INFO] [stderr]   --> src/bin/echo.rs:32:48
[INFO] [stderr]    |
[INFO] [stderr] 32 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stderr]    |                                                ^^^^         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `echo`
[INFO] [stderr]   --> src/bin/echo.rs:79:29
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Payload::Echo { echo } => { 
[INFO] [stderr]    |                             ^^^^ help: try ignoring the field: `echo: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]   --> src/bin/echo.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let state = EachNode { id : 0};
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead` and `fmt::format`
[INFO] [stderr]  --> src/bin/unique-ids.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{fmt::format, io::{BufRead, StdoutLock, Write}};
[INFO] [stderr]   |           ^^^^^^^^^^^       ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bail`
[INFO] [stderr]  --> src/bin/unique-ids.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | use anyhow::{bail, Context, Ok};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `de::DeserializeOwned`
[INFO] [stderr]  --> src/bin/unique-ids.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Body` and `Message`
[INFO] [stderr]  --> src/bin/unique-ids.rs:7:48
[INFO] [stderr]   |
[INFO] [stderr] 7 | use whirlpool_malestorm_challenge::{main_loop, Body, Event, Message, Node};
[INFO] [stderr]   |                                                ^^^^         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `Write`, and `fmt::format`
[INFO] [stderr]  --> src/bin/broadcast.rs:4:44
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::{collections::{HashMap, HashSet}, fmt::format, io::{BufRead, StdoutLock, Write}, thread};
[INFO] [stderr]   |                                            ^^^^^^^^^^^       ^^^^^^^              ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bail`
[INFO] [stderr]  --> src/bin/broadcast.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 | use anyhow::{bail, Context, Ok};
[INFO] [stderr]   |              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `de::DeserializeOwned`
[INFO] [stderr]  --> src/bin/broadcast.rs:8:13
[INFO] [stderr]   |
[INFO] [stderr] 8 | use serde::{de::DeserializeOwned, Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/broadcast.rs:97:34
[INFO] [stderr]    |
[INFO] [stderr] 97 | ...                   let (mut already_known , mut notify_of)  : (HashSet<_>, HashSet<_>) = self.messages.iter().copied()
[INFO] [stderr]    |                            ----^^^^^^^^^^^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `msg_communicated` is never read
[INFO] [stderr]   --> src/bin/broadcast.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub struct BroadcastNode { 
[INFO] [stderr]    |            ------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 40 |     msg_communicated : HashMap<usize, HashSet<usize>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `BroadcastNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/broadcast.rs:76:25
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         reply.send(&mut *output);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 76 |                         let _ = reply.send(&mut *output);
[INFO] [stderr]    |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/broadcast.rs:80:25
[INFO] [stderr]    |
[INFO] [stderr] 80 |                         reply.send(&mut *output);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 80 |                         let _ = reply.send(&mut *output);
[INFO] [stderr]    |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/bin/broadcast.rs:87:25
[INFO] [stderr]    |
[INFO] [stderr] 87 |                         reply.send(&mut *output);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 87 |                         let _ = reply.send(&mut *output);
[INFO] [stderr]    |                         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `whirlpool-malestorm-challenge` (bin "echo" test) generated 6 warnings (run `cargo fix --bin "echo" --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `whirlpool-malestorm-challenge` (bin "unique-ids" test) generated 4 warnings (run `cargo fix --bin "unique-ids" --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `whirlpool-malestorm-challenge` (bin "broadcast" test) generated 8 warnings (run `cargo fix --bin "broadcast" --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `whirlpool-malestorm-challenge` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/whirlpool_malestorm_challenge-4db16016da82c648)
[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 src/bin/broadcast.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/broadcast-020ea742e46b84a9)
[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 src/bin/echo.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/echo-3e331115f8ed4877)
[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 src/bin/unique-ids.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/unique_ids-dd4f167ed7a7d207)
[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" "24d93904db760edb3a93f3665272db2d72083ec8ddccc864c23afa1733791514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d93904db760edb3a93f3665272db2d72083ec8ddccc864c23afa1733791514", kill_on_drop: false }`
[INFO] [stdout] 24d93904db760edb3a93f3665272db2d72083ec8ddccc864c23afa1733791514