[INFO] cloning repository https://github.com/dhartunian/advent-of-code-2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhartunian/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhartunian%2Fadvent-of-code-2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhartunian%2Fadvent-of-code-2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0ccb6ff4a6a92c7360daecc1e2ce0a5a940201ee [INFO] checking dhartunian/advent-of-code-2018 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhartunian%2Fadvent-of-code-2018" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dhartunian/advent-of-code-2018 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dhartunian/advent-of-code-2018 [INFO] finished tweaking git repo https://github.com/dhartunian/advent-of-code-2018 [INFO] tweaked toml for git repo https://github.com/dhartunian/advent-of-code-2018 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/dhartunian/advent-of-code-2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4264bc6ba2c45d2d7b2cb06899dbd0e58a2b8eeb8cc7e26f8a8469d7409c36ef [INFO] running `Command { std: "docker" "start" "-a" "4264bc6ba2c45d2d7b2cb06899dbd0e58a2b8eeb8cc7e26f8a8469d7409c36ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4264bc6ba2c45d2d7b2cb06899dbd0e58a2b8eeb8cc7e26f8a8469d7409c36ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4264bc6ba2c45d2d7b2cb06899dbd0e58a2b8eeb8cc7e26f8a8469d7409c36ef", kill_on_drop: false }` [INFO] [stdout] 4264bc6ba2c45d2d7b2cb06899dbd0e58a2b8eeb8cc7e26f8a8469d7409c36ef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 15f05417b6c943d51772ddd6a88ce25b190d1f645309572d2decca62df92a59e [INFO] running `Command { std: "docker" "start" "-a" "15f05417b6c943d51772ddd6a88ce25b190d1f645309572d2decca62df92a59e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `char_difference` [INFO] [stdout] --> src/main.rs:332:4 [INFO] [stdout] | [INFO] [stdout] 332 | fn char_difference(word1 : &String, word2 : &String) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_letter_counts` [INFO] [stdout] --> src/main.rs:372:4 [INFO] [stdout] | [INFO] [stdout] 372 | fn get_letter_counts(word: &str) -> HashMap { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `char_difference` [INFO] [stdout] --> src/main.rs:332:4 [INFO] [stdout] | [INFO] [stdout] 332 | fn char_difference(word1 : &String, word2 : &String) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_letter_counts` [INFO] [stdout] --> src/main.rs:372:4 [INFO] [stdout] | [INFO] [stdout] 372 | fn get_letter_counts(word: &str) -> HashMap { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `Command { std: "docker" "inspect" "15f05417b6c943d51772ddd6a88ce25b190d1f645309572d2decca62df92a59e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15f05417b6c943d51772ddd6a88ce25b190d1f645309572d2decca62df92a59e", kill_on_drop: false }` [INFO] [stdout] 15f05417b6c943d51772ddd6a88ce25b190d1f645309572d2decca62df92a59e