[INFO] cloning repository https://github.com/Flexicon/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Flexicon/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlexicon%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlexicon%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ce4ab2e9f5f72785a607e14fdfa44dcfa61be1b4 [INFO] documenting Flexicon/rustlings against beta-2026-01-20 for beta-1.94-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlexicon%2Frustlings" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Flexicon/rustlings [INFO] finished tweaking git repo https://github.com/Flexicon/rustlings [INFO] tweaked toml for git repo https://github.com/Flexicon/rustlings written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Flexicon/rustlings on toolchain beta-2026-01-20 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Flexicon/rustlings 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded float-cmp v0.8.0 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded home v0.5.3 [INFO] [stderr] Downloaded terminal_size v0.1.17 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded indicatif v0.16.2 [INFO] [stderr] Downloaded notify v4.0.17 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded difference v2.0.0 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded console v0.15.0 [INFO] [stderr] Downloaded inotify v0.7.1 [INFO] [stderr] Downloaded syn v1.0.75 [INFO] [stderr] Downloaded slab v0.4.4 [INFO] [stderr] Downloaded libc v0.2.100 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d1485425448713cac04cd7c46ea5a00cc4b7f74500408b90cddb277179315fc1 [INFO] running `Command { std: "docker" "start" "-a" "d1485425448713cac04cd7c46ea5a00cc4b7f74500408b90cddb277179315fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d1485425448713cac04cd7c46ea5a00cc4b7f74500408b90cddb277179315fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1485425448713cac04cd7c46ea5a00cc4b7f74500408b90cddb277179315fc1", kill_on_drop: false }` [INFO] [stdout] d1485425448713cac04cd7c46ea5a00cc4b7f74500408b90cddb277179315fc1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a79049b78f3f4f4084fdc2e414cc6c29831778c68a8b727ba0867223c30e2d75 [INFO] running `Command { std: "docker" "start" "-a" "a79049b78f3f4f4084fdc2e414cc6c29831778c68a8b727ba0867223c30e2d75", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking number_prefix v0.4.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking home v0.5.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking terminal_size v0.1.17 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.17 [INFO] [stderr] Checking regex v1.5.5 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Checking console v0.15.0 [INFO] [stderr] Checking indicatif v0.16.2 [INFO] [stderr] Checking argh v0.1.5 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Documenting rustlings v5.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unclosed HTML tag `filename` [INFO] [stdout] --> src/main.rs:77:50 [INFO] [stdout] | [INFO] [stdout] 77 | /// 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 14.44s [INFO] [stderr] Generated /opt/rustwide/target/doc/rustlings/index.html [INFO] running `Command { std: "docker" "inspect" "a79049b78f3f4f4084fdc2e414cc6c29831778c68a8b727ba0867223c30e2d75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a79049b78f3f4f4084fdc2e414cc6c29831778c68a8b727ba0867223c30e2d75", kill_on_drop: false }` [INFO] [stdout] a79049b78f3f4f4084fdc2e414cc6c29831778c68a8b727ba0867223c30e2d75