[INFO] cloning repository https://github.com/james-mchugh/rust_serde_json_testing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/james-mchugh/rust_serde_json_testing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjames-mchugh%2Frust_serde_json_testing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjames-mchugh%2Frust_serde_json_testing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 195be4beab40b7c83206afef6049b3e5e21c010a
[INFO] documenting james-mchugh/rust_serde_json_testing 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%2Fjames-mchugh%2Frust_serde_json_testing" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/james-mchugh/rust_serde_json_testing
[INFO] finished tweaking git repo https://github.com/james-mchugh/rust_serde_json_testing
[INFO] tweaked toml for git repo https://github.com/james-mchugh/rust_serde_json_testing written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/james-mchugh/rust_serde_json_testing 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/james-mchugh/rust_serde_json_testing 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] documenting james-mchugh/rust_serde_json_testing 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%2Fjames-mchugh%2Frust_serde_json_testing" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/james-mchugh/rust_serde_json_testing
[INFO] finished tweaking git repo https://github.com/james-mchugh/rust_serde_json_testing
[INFO] tweaked toml for git repo https://github.com/james-mchugh/rust_serde_json_testing written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/james-mchugh/rust_serde_json_testing 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/james-mchugh/rust_serde_json_testing 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 jemallocator v0.3.2
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 485c10fced838fc59375f4ee192ad42f27e9d60d514a726e06e4f71b4e40343f
[INFO] running `Command { std: "docker" "start" "-a" "485c10fced838fc59375f4ee192ad42f27e9d60d514a726e06e4f71b4e40343f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "485c10fced838fc59375f4ee192ad42f27e9d60d514a726e06e4f71b4e40343f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "485c10fced838fc59375f4ee192ad42f27e9d60d514a726e06e4f71b4e40343f", kill_on_drop: false }`
[INFO] [stdout] 485c10fced838fc59375f4ee192ad42f27e9d60d514a726e06e4f71b4e40343f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1ac28fdd6702276776f730128235c27c59f8fda8e6c0f327ab819d0d8739eea0
[INFO] running `Command { std: "docker" "start" "-a" "1ac28fdd6702276776f730128235c27c59f8fda8e6c0f327ab819d0d8739eea0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.9
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.135
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stderr]  Documenting json_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.74s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/json_test/index.html
[INFO] running `Command { std: "docker" "inspect" "1ac28fdd6702276776f730128235c27c59f8fda8e6c0f327ab819d0d8739eea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac28fdd6702276776f730128235c27c59f8fda8e6c0f327ab819d0d8739eea0", kill_on_drop: false }`
[INFO] [stdout] 1ac28fdd6702276776f730128235c27c59f8fda8e6c0f327ab819d0d8739eea0