[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-starccy", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-starccy'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f4de6d251457a66501c0b222b76d747e17ad3f7b [INFO] documenting LearningOS/rust-rustlings-2023-autumn-starccy against beta-2026-04-21 for beta-1.96-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-starccy" "/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/LearningOS/rust-rustlings-2023-autumn-starccy [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-starccy 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" "+beta-2026-04-21" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-ident v1.0.10 [INFO] [stderr] Downloaded proc-macro2 v1.0.64 [INFO] [stderr] Downloaded itoa v1.0.8 [INFO] [stderr] Downloaded serde_derive v1.0.171 [INFO] [stderr] Downloaded ryu v1.0.14 [INFO] [stderr] Downloaded serde v1.0.171 [INFO] [stderr] Downloaded serde_json v1.0.102 [INFO] [stderr] Downloaded syn v2.0.25 [INFO] [stderr] Downloaded regex-automata v0.3.3 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 362b8df4a02da6cfdf2c3d6d450669ba9dab3e6a156c60eeb6b03aa0448ddc3f [INFO] running `Command { std: "docker" "start" "-a" "362b8df4a02da6cfdf2c3d6d450669ba9dab3e6a156c60eeb6b03aa0448ddc3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "362b8df4a02da6cfdf2c3d6d450669ba9dab3e6a156c60eeb6b03aa0448ddc3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "362b8df4a02da6cfdf2c3d6d450669ba9dab3e6a156c60eeb6b03aa0448ddc3f", kill_on_drop: false }` [INFO] [stdout] 362b8df4a02da6cfdf2c3d6d450669ba9dab3e6a156c60eeb6b03aa0448ddc3f [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f135db722ec824e50ede50c3a2ebb407bf9d6a8e3ef437d690e306a8ac224a6e [INFO] running `Command { std: "docker" "start" "-a" "f135db722ec824e50ede50c3a2ebb407bf9d6a8e3ef437d690e306a8ac224a6e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking regex-syntax v0.7.4 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Checking itoa v1.0.8 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Checking ryu v1.0.14 [INFO] [stderr] Checking home v0.5.5 [INFO] [stderr] Checking net2 v0.2.39 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking filetime v0.2.21 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking console v0.15.7 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking regex-automata v0.3.3 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Checking regex v1.9.1 [INFO] [stderr] Checking argh v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Documenting rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unclosed HTML tag `filename` [INFO] [stdout] --> src/main.rs:88:50 [INFO] [stdout] | [INFO] [stdout] 88 | /// Resets a single exercise using "git stash -- " [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(rustdoc::invalid_html_tags)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.77s [INFO] [stderr] Generated /opt/rustwide/target/doc/rustlings/index.html [INFO] running `Command { std: "docker" "inspect" "f135db722ec824e50ede50c3a2ebb407bf9d6a8e3ef437d690e306a8ac224a6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f135db722ec824e50ede50c3a2ebb407bf9d6a8e3ef437d690e306a8ac224a6e", kill_on_drop: false }` [INFO] [stdout] f135db722ec824e50ede50c3a2ebb407bf9d6a8e3ef437d690e306a8ac224a6e