[INFO] cloning repository https://github.com/marcohoovy/ferrum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcohoovy/ferrum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcohoovy%2Fferrum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcohoovy%2Fferrum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 678c1021a26d002b018aa78e21b301a9b07f5ee2
[INFO] testing marcohoovy/ferrum against 1.98.0-beta.8+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcohoovy%2Fferrum" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marcohoovy/ferrum
[INFO] finished tweaking git repo https://github.com/marcohoovy/ferrum
[INFO] tweaked toml for git repo https://github.com/marcohoovy/ferrum written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marcohoovy/ferrum on toolchain 1.98.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marcohoovy/ferrum 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" "+1.98.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837
[INFO] running `Command { std: "docker" "start" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ferrum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HeaderValue`
[INFO] [stdout]  --> src/main.rs:2:89
[INFO] [stdout]   |
[INFO] [stdout] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[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: `HashMap`
[INFO] [stdout]  --> src/bot.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, VecDeque}, sync::Arc, time::{Duration, Instant}};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::consts::U325`
[INFO] [stdout]  --> src/bot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sha2::digest::consts::U325;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]  --> src/bot.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     mut req: Request
[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 import: `handler::HandlerWithoutStateExt`
[INFO] [stdout]  --> src/main.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     mut req: Request
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sol` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (difficulty, len, sol);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_sol` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sol` is never read
[INFO] [stdout]   --> src/main.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |         (difficulty, len, sol) = (config.default_difficulty, config.challenge_length as u8, config.solutions_required);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sol` is never read
[INFO] [stdout]   --> src/main.rs:96:27
[INFO] [stdout]    |
[INFO] [stdout] 96 |         (difficulty, len, sol) = bot::scale_challenge_params(&mut lock, &config);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1m 50s
[INFO] running `Command { std: "docker" "inspect" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling ferrum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HeaderValue`
[INFO] [stdout]  --> src/main.rs:2:89
[INFO] [stdout]   |
[INFO] [stdout] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[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: `HashMap`
[INFO] [stdout]  --> src/bot.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, VecDeque}, sync::Arc, time::{Duration, Instant}};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sha2::digest::consts::U325`
[INFO] [stdout]  --> src/bot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sha2::digest::consts::U325;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]  --> src/bot.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::sync::Mutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     mut req: Request
[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 import: `handler::HandlerWithoutStateExt`
[INFO] [stdout]  --> src/main.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]   --> src/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     mut req: Request
[INFO] [stdout]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sol` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (difficulty, len, sol);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_sol` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sol` is never read
[INFO] [stdout]   --> src/main.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |         (difficulty, len, sol) = (config.default_difficulty, config.challenge_length as u8, config.solutions_required);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `sol` is never read
[INFO] [stdout]   --> src/main.rs:96:27
[INFO] [stdout]    |
[INFO] [stdout] 96 |         (difficulty, len, sol) = bot::scale_challenge_params(&mut lock, &config);
[INFO] [stdout]    |                           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `HeaderValue`
[INFO] [stderr]  --> src/main.rs:2:89
[INFO] [stderr]   |
[INFO] [stderr] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[INFO] [stderr]   |                                                                                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/bot.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::{HashMap, VecDeque}, sync::Arc, time::{Duration, Instant}};
[INFO] [stderr]   |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sha2::digest::consts::U325`
[INFO] [stderr]  --> src/bot.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sha2::digest::consts::U325;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::sync::Mutex`
[INFO] [stderr]  --> src/bot.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tokio::sync::Mutex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     mut req: Request
[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 import: `handler::HandlerWithoutStateExt`
[INFO] [stderr]  --> src/main.rs:2:49
[INFO] [stderr]   |
[INFO] [stderr] 2 |     body::Bytes, extract::{Extension, Request}, handler::HandlerWithoutStateExt, http::{HeaderValue, StatusCode}, response::{Html, In...
[INFO] [stderr]   |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `req`
[INFO] [stderr]   --> src/main.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     mut req: Request
[INFO] [stderr]    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `sol` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:92:27
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let (difficulty, len, sol);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_sol` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sol` is never read
[INFO] [stderr]   --> src/main.rs:98:27
[INFO] [stderr]    |
[INFO] [stderr] 98 |         (difficulty, len, sol) = (config.default_difficulty, config.challenge_length as u8, config.solutions_required);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `sol` is never read
[INFO] [stderr]   --> src/main.rs:96:27
[INFO] [stderr]    |
[INFO] [stderr] 96 |         (difficulty, len, sol) = bot::scale_challenge_params(&mut lock, &config);
[INFO] [stderr]    |                           ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `ferrum` (bin "ferrum" test) generated 10 warnings (run `cargo fix --bin "ferrum" -p ferrum --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.29s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/ferrum-70cf5c1d84c5e179)
[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" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837", kill_on_drop: false }`
[INFO] [stdout] f0857eaaa200971dfd5ac64a67ae5ea4043f3c6b8c307f35bbbbc816cfd1a837
