[INFO] cloning repository https://github.com/ppamorim/fibonacci-sequence-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ppamorim/fibonacci-sequence-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fppamorim%2Ffibonacci-sequence-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fppamorim%2Ffibonacci-sequence-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d827edb79304f20f3c8982ae3b0644f019875560 [INFO] checking ppamorim/fibonacci-sequence-rs against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fppamorim%2Ffibonacci-sequence-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ppamorim/fibonacci-sequence-rs [INFO] finished tweaking git repo https://github.com/ppamorim/fibonacci-sequence-rs [INFO] tweaked toml for git repo https://github.com/ppamorim/fibonacci-sequence-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ppamorim/fibonacci-sequence-rs on toolchain f21fbac535ab2c3bc50db20547f4d48477357103 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ppamorim/fibonacci-sequence-rs 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8176f49a548c8890f70951a93b0ca69350aa42daffb048d23e429f056acb05fa [INFO] running `Command { std: "docker" "start" "-a" "8176f49a548c8890f70951a93b0ca69350aa42daffb048d23e429f056acb05fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8176f49a548c8890f70951a93b0ca69350aa42daffb048d23e429f056acb05fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8176f49a548c8890f70951a93b0ca69350aa42daffb048d23e429f056acb05fa", kill_on_drop: false }` [INFO] [stdout] 8176f49a548c8890f70951a93b0ca69350aa42daffb048d23e429f056acb05fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 107c95698a232fbeeecddfe99b8e538acad88e914b0e8affa677a1256663c0f5 [INFO] running `Command { std: "docker" "start" "-a" "107c95698a232fbeeecddfe99b8e538acad88e914b0e8affa677a1256663c0f5", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.107 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Checking num_cpus v0.2.13 [INFO] [stderr] Checking bigNumber v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem::replace` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem::replace; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::replace` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::mem::replace; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `thread` [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{ thread, sync::{ Arc, Mutex }}; [INFO] [stdout] | ^^^^^^ ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/main.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufRead` and `self` [INFO] [stdout] --> src/main.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{self, BufRead}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `TryRecvError` and `self` [INFO] [stdout] --> src/main.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::mpsc::{self, TryRecvError}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex`, and `thread` [INFO] [stdout] --> src/main.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | use std::{ thread, sync::{ Arc, Mutex }}; [INFO] [stdout] | ^^^^^^ ^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/main.rs:5:17 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufRead` and `self` [INFO] [stdout] --> src/main.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use std::io::{self, BufRead}; [INFO] [stdout] | ^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `TryRecvError` and `self` [INFO] [stdout] --> src/main.rs:8:23 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::mpsc::{self, TryRecvError}; [INFO] [stdout] | ^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result1` [INFO] [stdout] --> src/main.rs:75:7 [INFO] [stdout] | [INFO] [stdout] 75 | let result1 = fib4(n/3); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result2` [INFO] [stdout] --> src/main.rs:76:7 [INFO] [stdout] | [INFO] [stdout] 76 | let result2 = fib4(n/2); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result3` [INFO] [stdout] --> src/main.rs:77:7 [INFO] [stdout] | [INFO] [stdout] 77 | let result3 = fib4(n); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result1` [INFO] [stdout] --> src/main.rs:75:7 [INFO] [stdout] | [INFO] [stdout] 75 | let result1 = fib4(n/3); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result2` [INFO] [stdout] --> src/main.rs:76:7 [INFO] [stdout] | [INFO] [stdout] 76 | let result2 = fib4(n/2); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result3` [INFO] [stdout] --> src/main.rs:77:7 [INFO] [stdout] | [INFO] [stdout] 77 | let result3 = fib4(n); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result3` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.04s [INFO] running `Command { std: "docker" "inspect" "107c95698a232fbeeecddfe99b8e538acad88e914b0e8affa677a1256663c0f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "107c95698a232fbeeecddfe99b8e538acad88e914b0e8affa677a1256663c0f5", kill_on_drop: false }` [INFO] [stdout] 107c95698a232fbeeecddfe99b8e538acad88e914b0e8affa677a1256663c0f5