[INFO] cloning repository https://github.com/isabelgk/rustlings-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/isabelgk/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisabelgk%2Frustlings-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisabelgk%2Frustlings-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56c7a80d974b32c8d6caa258de963cc95cd4f3fa
[INFO] documenting isabelgk/rustlings-solutions against beta-2025-09-21 for beta-rustdoc-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisabelgk%2Frustlings-solutions" "/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/isabelgk/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/isabelgk/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/isabelgk/rustlings-solutions written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/isabelgk/rustlings-solutions on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/isabelgk/rustlings-solutions 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-2025-09-21" "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 serde_json v1.0.66
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c0833282f2c34484c58e19cd7d3b277052fbcf7405e9718ec85b4e2f78ffd07
[INFO] running `Command { std: "docker" "start" "-a" "0c0833282f2c34484c58e19cd7d3b277052fbcf7405e9718ec85b4e2f78ffd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c0833282f2c34484c58e19cd7d3b277052fbcf7405e9718ec85b4e2f78ffd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0833282f2c34484c58e19cd7d3b277052fbcf7405e9718ec85b4e2f78ffd07", kill_on_drop: false }`
[INFO] [stdout] 0c0833282f2c34484c58e19cd7d3b277052fbcf7405e9718ec85b4e2f78ffd07
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96ead912ea354817f60518d4f5e42cebcd148995b514828d72af7e9868254f47
[INFO] running `Command { std: "docker" "start" "-a" "96ead912ea354817f60518d4f5e42cebcd148995b514828d72af7e9868254f47", kill_on_drop: false }`
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]  Documenting rustlings v4.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rustlings/index.html
[INFO] running `Command { std: "docker" "inspect" "96ead912ea354817f60518d4f5e42cebcd148995b514828d72af7e9868254f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ead912ea354817f60518d4f5e42cebcd148995b514828d72af7e9868254f47", kill_on_drop: false }`
[INFO] [stdout] 96ead912ea354817f60518d4f5e42cebcd148995b514828d72af7e9868254f47
[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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4708cbc3bf0af5ae3d45b0d9b3d6bb47885c4fe60d5f0efbd474c0bcc4879a3
[INFO] running `Command { std: "docker" "start" "-a" "f4708cbc3bf0af5ae3d45b0d9b3d6bb47885c4fe60d5f0efbd474c0bcc4879a3", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustlings v4.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rustlings/index.html
[INFO] running `Command { std: "docker" "inspect" "f4708cbc3bf0af5ae3d45b0d9b3d6bb47885c4fe60d5f0efbd474c0bcc4879a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4708cbc3bf0af5ae3d45b0d9b3d6bb47885c4fe60d5f0efbd474c0bcc4879a3", kill_on_drop: false }`
[INFO] [stdout] f4708cbc3bf0af5ae3d45b0d9b3d6bb47885c4fe60d5f0efbd474c0bcc4879a3