[INFO] cloning repository https://github.com/jackie-png/Boggle-on-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackie-png/Boggle-on-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-png%2FBoggle-on-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-png%2FBoggle-on-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00b17929c147fad02e5fbd6c14b93aabeb08cbf0
[INFO] checking jackie-png/Boggle-on-Rust/00b17929c147fad02e5fbd6c14b93aabeb08cbf0 against master#65407954098ca3c19f0d46092cb374b5d3e9dc3c for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-png%2FBoggle-on-Rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jackie-png/Boggle-on-Rust
[INFO] finished tweaking git repo https://github.com/jackie-png/Boggle-on-Rust
[INFO] tweaked toml for git repo https://github.com/jackie-png/Boggle-on-Rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jackie-png/Boggle-on-Rust on toolchain 65407954098ca3c19f0d46092cb374b5d3e9dc3c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+65407954098ca3c19f0d46092cb374b5d3e9dc3c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jackie-png/Boggle-on-Rust 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" "+65407954098ca3c19f0d46092cb374b5d3e9dc3c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a
[INFO] running `Command { std: "docker" "start" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a", 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" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a" "/opt/rustwide/cargo-home/bin/cargo" "+65407954098ca3c19f0d46092cb374b5d3e9dc3c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a" "/opt/rustwide/cargo-home/bin/cargo" "+65407954098ca3c19f0d46092cb374b5d3e9dc3c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking boggle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::HashMap, env};
[INFO] [stdout]   |                                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `boggle`
[INFO] [stdout]    --> src/main.rs:216:11
[INFO] [stdout]     |
[INFO] [stdout] 216 | mod tests;
[INFO] [stdout]     |           ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `boggle` (bin "boggle") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]    --> src/main.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |         for (col, letter) in row_str.chars().enumerate() {
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> src/main.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::HashMap, env};
[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: `letter`
[INFO] [stdout]    --> src/main.rs:101:19
[INFO] [stdout]     |
[INFO] [stdout] 101 |         for (col, letter) in row_str.chars().enumerate() {
[INFO] [stdout]     |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]   --> src/tests.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let found = boggle(&board, &words);
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a", kill_on_drop: false }`
[INFO] [stdout] 546cd7f7abb6c3142073bff8dc59860bbcd7eea71b0eb45d901e1e4e9307322a
