[INFO] cloning repository https://github.com/PhilipTamb/distributed-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PhilipTamb/distributed-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhilipTamb%2Fdistributed-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhilipTamb%2Fdistributed-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 588bbf144df9324f4416df96cb53d613dca96916
[INFO] testing PhilipTamb/distributed-calculator against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhilipTamb%2Fdistributed-calculator" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PhilipTamb/distributed-calculator
[INFO] finished tweaking git repo https://github.com/PhilipTamb/distributed-calculator
[INFO] tweaked toml for git repo https://github.com/PhilipTamb/distributed-calculator written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PhilipTamb/distributed-calculator on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PhilipTamb/distributed-calculator 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" "+beta-2026-01-20" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25b97c6207bfcd807b41e213754dbbaa0c6f524d68243ce04879cf16252c630d
[INFO] running `Command { std: "docker" "start" "-a" "25b97c6207bfcd807b41e213754dbbaa0c6f524d68243ce04879cf16252c630d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25b97c6207bfcd807b41e213754dbbaa0c6f524d68243ce04879cf16252c630d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b97c6207bfcd807b41e213754dbbaa0c6f524d68243ce04879cf16252c630d", kill_on_drop: false }`
[INFO] [stdout] 25b97c6207bfcd807b41e213754dbbaa0c6f524d68243ce04879cf16252c630d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed7e829f9f0fa92982081cc871f663f66cefed0a7388c016e2f218d58a6ed852
[INFO] running `Command { std: "docker" "start" "-a" "ed7e829f9f0fa92982081cc871f663f66cefed0a7388c016e2f218d58a6ed852", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling rust_decimal v1.36.0
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling rust_decimal_macros v1.36.0
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tokio v1.42.0
[INFO] [stderr]    Compiling distributed_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Number`, `Value`, and `json`
[INFO] [stdout]  --> client/src/main.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde_json::{json, Number, Value};
[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: `std::env`
[INFO] [stdout]  --> client/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mpsc` and `oneshot`
[INFO] [stdout]  --> server/src/services.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::sync::{mpsc, oneshot};
[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 variable: `bytes_read`
[INFO] [stdout]   --> client/src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let bytes_read = socket.read(&mut buffer).await.unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> client/src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut e_approx_f64 = e_approx.to_f64().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `res` is never read
[INFO] [stdout]   --> server/src/main.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     res = result.result;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> server/src/main.rs:16:31
[INFO] [stdout]    |
[INFO] [stdout] 16 |     while let Ok((mut socket, peer)) = listener.accept().await {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.79s
[INFO] running `Command { std: "docker" "inspect" "ed7e829f9f0fa92982081cc871f663f66cefed0a7388c016e2f218d58a6ed852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7e829f9f0fa92982081cc871f663f66cefed0a7388c016e2f218d58a6ed852", kill_on_drop: false }`
[INFO] [stdout] ed7e829f9f0fa92982081cc871f663f66cefed0a7388c016e2f218d58a6ed852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21a7e45022826d3f1c33d846f0981736b27222729f854d25848d6a78faaba542
[INFO] running `Command { std: "docker" "start" "-a" "21a7e45022826d3f1c33d846f0981736b27222729f854d25848d6a78faaba542", kill_on_drop: false }`
[INFO] [stderr]    Compiling distributed_calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Number`, `Value`, and `json`
[INFO] [stdout]  --> client/src/main.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde_json::{json, Number, Value};
[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: `std::env`
[INFO] [stdout]  --> client/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> client/src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let bytes_read = socket.read(&mut buffer).await.unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> client/src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut e_approx_f64 = e_approx.to_f64().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mpsc` and `oneshot`
[INFO] [stdout]  --> server/src/services.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::sync::{mpsc, oneshot};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `res` is never read
[INFO] [stdout]   --> server/src/main.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     res = result.result;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> server/src/main.rs:16:31
[INFO] [stdout]    |
[INFO] [stdout] 16 |     while let Ok((mut socket, peer)) = listener.accept().await {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Number`, `Value`, and `json`
[INFO] [stdout]  --> client/src/main.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde_json::{json, Number, Value};
[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: `std::env`
[INFO] [stdout]  --> client/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mpsc` and `oneshot`
[INFO] [stdout]  --> server/src/services.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::sync::{mpsc, oneshot};
[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 variable: `bytes_read`
[INFO] [stdout]   --> client/src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let bytes_read = socket.read(&mut buffer).await.unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> client/src/main.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let mut e_approx_f64 = e_approx.to_f64().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `res` is never read
[INFO] [stdout]   --> server/src/main.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     res = result.result;
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer`
[INFO] [stdout]   --> server/src/main.rs:16:31
[INFO] [stdout]    |
[INFO] [stdout] 16 |     while let Ok((mut socket, peer)) = listener.accept().await {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "21a7e45022826d3f1c33d846f0981736b27222729f854d25848d6a78faaba542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a7e45022826d3f1c33d846f0981736b27222729f854d25848d6a78faaba542", kill_on_drop: false }`
[INFO] [stdout] 21a7e45022826d3f1c33d846f0981736b27222729f854d25848d6a78faaba542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b81c114d5eb0db999ebbe7c69e432cfd8675f2d35806e62b53c4e1cf98c91c5
[INFO] running `Command { std: "docker" "start" "-a" "1b81c114d5eb0db999ebbe7c69e432cfd8675f2d35806e62b53c4e1cf98c91c5", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Number`, `Value`, and `json`
[INFO] [stderr]  --> client/src/main.rs:5:18
[INFO] [stderr]   |
[INFO] [stderr] 5 | use serde_json::{json, Number, Value};
[INFO] [stderr]   |                  ^^^^  ^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> client/src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> client/src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let bytes_read = socket.read(&mut buffer).await.unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> client/src/main.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |         let mut e_approx_f64 = e_approx.to_f64().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `mpsc` and `oneshot`
[INFO] [stderr]  --> server/src/services.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio::sync::{mpsc, oneshot};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `res` is never read
[INFO] [stderr]   --> server/src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     res = result.result;
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `peer`
[INFO] [stderr]   --> server/src/main.rs:16:31
[INFO] [stderr]    |
[INFO] [stderr] 16 |     while let Ok((mut socket, peer)) = listener.accept().await {
[INFO] [stderr]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `distributed_calculator` (bin "client" test) generated 4 warnings (run `cargo fix --bin "client" -p distributed_calculator --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `distributed_calculator` (bin "client") generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: `distributed_calculator` (bin "server") generated 3 warnings (run `cargo fix --bin "server" -p distributed_calculator` to apply 2 suggestions)
[INFO] [stderr] warning: `distributed_calculator` (bin "server" test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests client/src/main.rs (/opt/rustwide/target/debug/deps/client-ee870ce6a5166eb4)
[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 server/src/main.rs (/opt/rustwide/target/debug/deps/server-e17d3f594ab8aed9)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-b4abf4359b834aed)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr] warning: unused imports: `mpsc` and `oneshot`
[INFO] [stderr]  --> server/src/services.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio::sync::{mpsc, oneshot};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `res` is never read
[INFO] [stderr]   --> server/src/main.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     res = result.result;
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `peer`
[INFO] [stderr]   --> server/src/main.rs:16:31
[INFO] [stderr]    |
[INFO] [stderr] 16 |     while let Ok((mut socket, peer)) = listener.accept().await {
[INFO] [stderr]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `server` (bin "server") generated 3 warnings (run `cargo fix --bin "server" -p server` to apply 2 suggestions)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] [stderr]      Running `/opt/rustwide/target/debug/server`
[INFO] [stdout] Listening on: 127.0.0.1:8080
[INFO] [stdout] test test_e_computation ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--test test`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_e_computation stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_e_computation' (27) panicked at tests/test.rs:40:5:
[INFO] [stdout] assertion failed: result.contains("Valore approssimato di e con N=5")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5fd62b641252 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5fd62b641252 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5fd62b641252 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5fd62b641252 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5fd62b6512aa - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5fd62b6512aa - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5fd62b60fe66 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5fd62b60fe66 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5fd62b620739 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5fd62b620739 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5fd62b6205d1 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5fd62b5e490e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5fd62b5e490e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5fd62b6209b2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5fd62b6209b2 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5fd62b62082a - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5fd62b61bbc9 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5fd62b604a5d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5fd62b65859c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5fd62b658562 - core::panicking::panic::h6519d2e94a76dd19
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x5fd62b5c4b81 - test::test_e_computation::hf8885b00beac8d01
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test.rs:40:5
[INFO] [stdout]   21:     0x5fd62b5c4cb7 - test::test_e_computation::{{closure}}::hec212fbf363c8569
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test.rs:25:24
[INFO] [stdout]   22:     0x5fd62b5bcfa6 - core::ops::function::FnOnce::call_once::h94be99bc7865840a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5fd62b5e470b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5fd62b5e470b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x5fd62b5f80da - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x5fd62b5f80da - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x5fd62b5f80da - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x5fd62b5f80da - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5fd62b5f80da - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5fd62b5f80da - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x5fd62b5f80da - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x5fd62b5d2534 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x5fd62b5d2534 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x5fd62b5d5df2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x5fd62b5d5df2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x5fd62b5d5df2 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x5fd62b5d5df2 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5fd62b5d5df2 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5fd62b5d5df2 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x5fd62b5d5df2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5fd62b616caf - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x5fd62b616caf - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   43:     0x7ad8cba0aaa4 - <unknown>
[INFO] [stdout]   44:     0x7ad8cba97a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_e_computation
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 25.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b81c114d5eb0db999ebbe7c69e432cfd8675f2d35806e62b53c4e1cf98c91c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b81c114d5eb0db999ebbe7c69e432cfd8675f2d35806e62b53c4e1cf98c91c5", kill_on_drop: false }`
[INFO] [stdout] 1b81c114d5eb0db999ebbe7c69e432cfd8675f2d35806e62b53c4e1cf98c91c5
