[INFO] cloning repository https://github.com/ntegan/project_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntegan/project_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntegan%2Fproject_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntegan%2Fproject_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5515483e5b0055471de6d6ebc1b7c28640f77107
[INFO] checking ntegan/project_euler against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntegan%2Fproject_euler" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ntegan/project_euler
[INFO] finished tweaking git repo https://github.com/ntegan/project_euler
[INFO] tweaked toml for git repo https://github.com/ntegan/project_euler written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ntegan/project_euler on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ntegan/project_euler 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bca2b6ab0efe91f5498e1d1cb58f9cbbd465ef7ee814ad094d3732a625adcbe1
[INFO] running `Command { std: "docker" "start" "-a" "bca2b6ab0efe91f5498e1d1cb58f9cbbd465ef7ee814ad094d3732a625adcbe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bca2b6ab0efe91f5498e1d1cb58f9cbbd465ef7ee814ad094d3732a625adcbe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca2b6ab0efe91f5498e1d1cb58f9cbbd465ef7ee814ad094d3732a625adcbe1", kill_on_drop: false }`
[INFO] [stdout] bca2b6ab0efe91f5498e1d1cb58f9cbbd465ef7ee814ad094d3732a625adcbe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62caef2f053374c3c3c59b275c17f8977036319a43bcd0042edbd933e6bee28a
[INFO] running `Command { std: "docker" "start" "-a" "62caef2f053374c3c3c59b275c17f8977036319a43bcd0042edbd933e6bee28a", kill_on_drop: false }`
[INFO] [stderr]     Checking zzz_print_problem_header v0.1.0 (/opt/rustwide/workdir/zzz_print_problem_header)
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking ab_two v0.1.0 (/opt/rustwide/workdir/ab_two)
[INFO] [stderr]     Checking aa_one v0.1.0 (/opt/rustwide/workdir/aa_one)
[INFO] [stderr]     Checking af_six v0.1.0 (/opt/rustwide/workdir/af_six)
[INFO] [stderr]     Checking ad_four v0.1.0 (/opt/rustwide/workdir/ad_four)
[INFO] [stderr]     Checking ag_seven v0.1.0 (/opt/rustwide/workdir/ag_seven)
[INFO] [stderr]     Checking ae_five v0.1.0 (/opt/rustwide/workdir/ae_five)
[INFO] [stderr]     Checking ac_three v0.1.0 (/opt/rustwide/workdir/ac_three)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> ad_four/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> ad_four/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_found`
[INFO] [stdout]   --> ad_four/src/main.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 | ...                   let first_found = j; 
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_found`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> ae_five/src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> ad_four/src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut first_found: u64 = 0; // j when find first palindrome
[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: unused variable: `first_found`
[INFO] [stdout]   --> ad_four/src/main.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 36 | ...                   let first_found = j; 
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_found`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> ad_four/src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let mut first_found: u64 = 0; // j when find first palindrome
[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: unused import: `super::*`
[INFO] [stdout]   --> ae_five/src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking ah_eight v0.1.0 (/opt/rustwide/workdir/ah_eight)
[INFO] [stderr]     Checking ai_nine v0.1.0 (/opt/rustwide/workdir/ai_nine)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> ah_eight/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use std::cmp::Ordering;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> ai_nine/src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use std::cmp::Ordering;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> ai_nine/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use std::fs;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> ai_nine/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use regex::Regex;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> ai_nine/src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     use std::cmp::Ordering;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]   --> ai_nine/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use std::fs;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> ai_nine/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use regex::Regex;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]   --> ah_eight/src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use std::cmp::Ordering;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.76s
[INFO] running `Command { std: "docker" "inspect" "62caef2f053374c3c3c59b275c17f8977036319a43bcd0042edbd933e6bee28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62caef2f053374c3c3c59b275c17f8977036319a43bcd0042edbd933e6bee28a", kill_on_drop: false }`
[INFO] [stdout] 62caef2f053374c3c3c59b275c17f8977036319a43bcd0042edbd933e6bee28a
