[INFO] fetching crate handlebars-cli-ext 0.0.0...
[INFO] documenting handlebars-cli-ext-0.0.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate handlebars-cli-ext 0.0.0 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate handlebars-cli-ext 0.0.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate handlebars-cli-ext 0.0.0
[INFO] finished tweaking crates.io crate handlebars-cli-ext 0.0.0
[INFO] tweaked toml for crates.io crate handlebars-cli-ext 0.0.0 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate handlebars-cli-ext 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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 execute-command-macro-impl v0.1.6
[INFO] [stderr]   Downloaded execute-command-macro v0.1.6
[INFO] [stderr]   Downloaded execute-command-tokens v0.1.4
[INFO] [stderr]   Downloaded handlebars v4.2.1
[INFO] [stderr]   Downloaded execute v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b63f2b7a727e755855e7e5dfff4ea319cf5977a6d98f682e5836e2bd4c2481e
[INFO] running `Command { std: "docker" "start" "-a" "4b63f2b7a727e755855e7e5dfff4ea319cf5977a6d98f682e5836e2bd4c2481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b63f2b7a727e755855e7e5dfff4ea319cf5977a6d98f682e5836e2bd4c2481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b63f2b7a727e755855e7e5dfff4ea319cf5977a6d98f682e5836e2bd4c2481e", kill_on_drop: false }`
[INFO] [stdout] 4b63f2b7a727e755855e7e5dfff4ea319cf5977a6d98f682e5836e2bd4c2481e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31eca9597bab0cc6791284023247d1e96c32e334227c12077c6770fd25d8b70a
[INFO] running `Command { std: "docker" "start" "-a" "31eca9597bab0cc6791284023247d1e96c32e334227c12077c6770fd25d8b70a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling execute-command-tokens v0.1.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling execute-command-macro-impl v0.1.6
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking execute-command-macro v0.1.6
[INFO] [stderr]     Checking handlebars v4.2.1
[INFO] [stderr]     Checking execute v0.2.9
[INFO] [stderr]  Documenting handlebars-cli-ext v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.83s
[INFO] running `Command { std: "docker" "inspect" "31eca9597bab0cc6791284023247d1e96c32e334227c12077c6770fd25d8b70a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31eca9597bab0cc6791284023247d1e96c32e334227c12077c6770fd25d8b70a", kill_on_drop: false }`
[INFO] [stdout] 31eca9597bab0cc6791284023247d1e96c32e334227c12077c6770fd25d8b70a