[INFO] cloning repository https://github.com/roman-karpovich/codewars [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roman-karpovich/codewars" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2d6954c57a066ed1104b6a14b62acabf09a3a3f3 [INFO] checking roman-karpovich/codewars against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roman-karpovich/codewars on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/roman-karpovich/codewars [INFO] finished tweaking git repo https://github.com/roman-karpovich/codewars [INFO] tweaked toml for git repo https://github.com/roman-karpovich/codewars written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/roman-karpovich/codewars 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking roman-karpovich/codewars against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roman-karpovich/codewars on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/roman-karpovich/codewars [INFO] finished tweaking git repo https://github.com/roman-karpovich/codewars [INFO] tweaked toml for git repo https://github.com/roman-karpovich/codewars written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/roman-karpovich/codewars 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking roman-karpovich/codewars against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roman-karpovich/codewars on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/roman-karpovich/codewars [INFO] finished tweaking git repo https://github.com/roman-karpovich/codewars [INFO] tweaked toml for git repo https://github.com/roman-karpovich/codewars written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/roman-karpovich/codewars 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking roman-karpovich/codewars against try#2277c63fa464d237b17b68d3b87f9fbb89e58a3e for pr-133570-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froman-karpovich%2Fcodewars" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roman-karpovich/codewars on toolchain 2277c63fa464d237b17b68d3b87f9fbb89e58a3e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/roman-karpovich/codewars [INFO] finished tweaking git repo https://github.com/roman-karpovich/codewars [INFO] tweaked toml for git repo https://github.com/roman-karpovich/codewars written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/roman-karpovich/codewars 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" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7b73c93518379f269b82e195008182e494f92788877912728e10232f5733a8a8 [INFO] running `Command { std: "docker" "start" "-a" "7b73c93518379f269b82e195008182e494f92788877912728e10232f5733a8a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b73c93518379f269b82e195008182e494f92788877912728e10232f5733a8a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b73c93518379f269b82e195008182e494f92788877912728e10232f5733a8a8", kill_on_drop: false }` [INFO] [stdout] 7b73c93518379f269b82e195008182e494f92788877912728e10232f5733a8a8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+2277c63fa464d237b17b68d3b87f9fbb89e58a3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 466ecfe5b886d62c4426acac2e3c93afbda7d1fec1f6e7d01572026028842577 [INFO] running `Command { std: "docker" "start" "-a" "466ecfe5b886d62c4426acac2e3c93afbda7d1fec1f6e7d01572026028842577", kill_on_drop: false }` [INFO] [stderr] Checking aho-corasick v0.7.20 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking twice_linear v0.1.0 (/opt/rustwide/workdir/kata_4/twice_linear) [INFO] [stderr] Checking factorial_decomposition v0.1.0 (/opt/rustwide/workdir/kata_5/factorial_decomposition) [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::{BTreeSet, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> kata_5/factorial_decomposition/src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:11:41 [INFO] [stdout] | [INFO] [stdout] 11 | let mut queue = BTreeSet::from([1]);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `VecDeque` [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::{BTreeSet, VecDeque}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:11:41 [INFO] [stdout] | [INFO] [stdout] 11 | let mut queue = BTreeSet::from([1]);; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::current` [INFO] [stdout] --> kata_5/factorial_decomposition/src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread::current; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_next_elements` is never used [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:4:4 [INFO] [stdout] | [INFO] [stdout] 4 | fn get_next_elements(x: u32) -> (u32, u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `dbl_linear` is never used [INFO] [stdout] --> kata_4/twice_linear/src/main.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn dbl_linear(n: u32) -> u32{ [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `decompose_prime` is never used [INFO] [stdout] --> kata_5/factorial_decomposition/src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn decompose_prime(n: i32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `decomp` is never used [INFO] [stdout] --> kata_5/factorial_decomposition/src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn decomp(n: i32) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v1.7.3 [INFO] [stderr] Checking isbn_validator v0.1.0 (/opt/rustwide/workdir/kata_5/isbn_validator) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> kata_5/isbn_validator/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut chars: Vec = isbn.chars().collect(); [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: function `valid_isbn10` is never used [INFO] [stdout] --> kata_5/isbn_validator/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn valid_isbn10(isbn: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> kata_5/isbn_validator/src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut chars: Vec = isbn.chars().collect(); [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.53s [INFO] running `Command { std: "docker" "inspect" "466ecfe5b886d62c4426acac2e3c93afbda7d1fec1f6e7d01572026028842577", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "466ecfe5b886d62c4426acac2e3c93afbda7d1fec1f6e7d01572026028842577", kill_on_drop: false }` [INFO] [stdout] 466ecfe5b886d62c4426acac2e3c93afbda7d1fec1f6e7d01572026028842577