[INFO] updating cached repository https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f033227958f55eb620e5bbfee7ec170b09ed6d36
[INFO] checking LearningOS/rust-rustlings-2024-spring-excaliburdraco/f033227958f55eb620e5bbfee7ec170b09ed6d36 against try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-excaliburdraco" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2024-spring-excaliburdraco 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" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f4f1595e5791e3eca5df589e96134d335add8586f2e429b976a39fc50b504d2
[INFO] running `Command { std: "docker" "start" "-a" "2f4f1595e5791e3eca5df589e96134d335add8586f2e429b976a39fc50b504d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4f1595e5791e3eca5df589e96134d335add8586f2e429b976a39fc50b504d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4f1595e5791e3eca5df589e96134d335add8586f2e429b976a39fc50b504d2", kill_on_drop: false }`
[INFO] [stdout] 2f4f1595e5791e3eca5df589e96134d335add8586f2e429b976a39fc50b504d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9087445b731d780300f8270d4c50b7d78e4e5db82052dbac1a16caa86db103f2
[INFO] running `Command { std: "docker" "start" "-a" "9087445b731d780300f8270d4c50b7d78e4e5db82052dbac1a16caa86db103f2", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `calculate_price_of_apples` is never used
[INFO] [stdout]   --> exercises/quiz1.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn calculate_price_of_apples(a: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Command` is never used
[INFO] [stdout]   --> exercises/quiz2.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum Command {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transformer` is never used
[INFO] [stdout]   --> exercises/quiz2.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn transformer(input: Vec<(String, Command)>) -> Vec<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReportCard` is never constructed
[INFO] [stdout]   --> exercises/quiz3.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct ReportCard<T: Display> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> exercises/quiz3.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<T: Display> ReportCard<T> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] 27 |     pub fn print(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "9087445b731d780300f8270d4c50b7d78e4e5db82052dbac1a16caa86db103f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9087445b731d780300f8270d4c50b7d78e4e5db82052dbac1a16caa86db103f2", kill_on_drop: false }`
[INFO] [stdout] 9087445b731d780300f8270d4c50b7d78e4e5db82052dbac1a16caa86db103f2