[INFO] cloning repository https://github.com/sulox/rust-developer-course-r_d
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sulox/rust-developer-course-r_d" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulox%2Frust-developer-course-r_d", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulox%2Frust-developer-course-r_d'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0444163d321b730f3e8faff7d054fd0246c18814
[INFO] documenting sulox/rust-developer-course-r_d 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%2Fsulox%2Frust-developer-course-r_d" "/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/sulox/rust-developer-course-r_d
[INFO] finished tweaking git repo https://github.com/sulox/rust-developer-course-r_d
[INFO] tweaked toml for git repo https://github.com/sulox/rust-developer-course-r_d written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sulox/rust-developer-course-r_d 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/sulox/rust-developer-course-r_d 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
[ERROR] error running command: no output for 300 seconds
[INFO] documenting sulox/rust-developer-course-r_d 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%2Fsulox%2Frust-developer-course-r_d" "/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/sulox/rust-developer-course-r_d
[INFO] finished tweaking git repo https://github.com/sulox/rust-developer-course-r_d
[INFO] tweaked toml for git repo https://github.com/sulox/rust-developer-course-r_d written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sulox/rust-developer-course-r_d 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/sulox/rust-developer-course-r_d 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 deunicode v1.6.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05d6f5a557e6b88efda907a05ef96062e3a1cae6351719d0534471442f484edc
[INFO] running `Command { std: "docker" "start" "-a" "05d6f5a557e6b88efda907a05ef96062e3a1cae6351719d0534471442f484edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05d6f5a557e6b88efda907a05ef96062e3a1cae6351719d0534471442f484edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05d6f5a557e6b88efda907a05ef96062e3a1cae6351719d0534471442f484edc", kill_on_drop: false }`
[INFO] [stdout] 05d6f5a557e6b88efda907a05ef96062e3a1cae6351719d0534471442f484edc
[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: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] 142b2b55e2ed03df52163537bb34261080f958ea159d216fa8d4e4c3bcd621c1
[INFO] running `Command { std: "docker" "start" "-a" "142b2b55e2ed03df52163537bb34261080f958ea159d216fa8d4e4c3bcd621c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]     Checking deunicode v1.6.0
[INFO] [stderr]     Checking slug v0.1.6
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]  Documenting rust-developer-course-r_d v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rust_developer_course_r_d/index.html
[INFO] running `Command { std: "docker" "inspect" "142b2b55e2ed03df52163537bb34261080f958ea159d216fa8d4e4c3bcd621c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142b2b55e2ed03df52163537bb34261080f958ea159d216fa8d4e4c3bcd621c1", kill_on_drop: false }`
[INFO] [stdout] 142b2b55e2ed03df52163537bb34261080f958ea159d216fa8d4e4c3bcd621c1