[INFO] fetching crate collatz-eval 0.1.0...
[INFO] documenting collatz-eval-0.1.0 against 1.99.0-beta.8 for beta-rustdoc-1.100
[INFO] extracting crate collatz-eval 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate collatz-eval 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate collatz-eval 0.1.0
[INFO] tweaked toml for crates.io crate collatz-eval 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate collatz-eval 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate collatz-eval 0.1.0 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" "+1.99.0-beta.8" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded hegeltest-macros v0.29.3
[INFO] [stderr]   Downloaded dashu-base v0.4.3
[INFO] [stderr]   Downloaded num-modular v0.6.5
[INFO] [stderr]   Downloaded dashu-int v0.4.3
[INFO] [stderr]   Downloaded rug v1.30.0
[INFO] [stderr]   Downloaded hegeltest v0.29.3
[INFO] [stderr]   Downloaded hegeltest-c v0.32.1
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc
[INFO] running `Command { std: "docker" "start" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling collatz-eval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting collatz-eval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/collatz_eval/index.html
[INFO] running `Command { std: "docker" "inspect" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "gmp oracle" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.1
[INFO] [stderr]    Compiling rug v1.30.0
[INFO] [stderr]     Checking az v1.3.0
[INFO] [stderr]    Compiling collatz-eval v0.1.0 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc", kill_on_drop: false }`
[INFO] [stdout] 8eaf1baffc09b9133109cdb551915c48df4a7f1b4bbbf0e8642556fce20f50fc