[INFO] cloning repository https://github.com/lffg2/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lffg2/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c24374d224f0183e684db05a6da05efe9af8a181
[INFO] documenting lffg2/rust-playground against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lffg2/rust-playground 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 git repo https://github.com/lffg2/rust-playground
[INFO] finished tweaking git repo https://github.com/lffg2/rust-playground
[INFO] tweaked toml for git repo https://github.com/lffg2/rust-playground written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/lffg2/rust-playground 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e33adff3426eeb71675222fbbe7860f05ef3bb723ad6c7b03d699e6322e6658c
[INFO] running `Command { std: "docker" "start" "-a" "e33adff3426eeb71675222fbbe7860f05ef3bb723ad6c7b03d699e6322e6658c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e33adff3426eeb71675222fbbe7860f05ef3bb723ad6c7b03d699e6322e6658c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e33adff3426eeb71675222fbbe7860f05ef3bb723ad6c7b03d699e6322e6658c", kill_on_drop: false }`
[INFO] [stdout] e33adff3426eeb71675222fbbe7860f05ef3bb723ad6c7b03d699e6322e6658c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ff21a5d284b5e74a5c835808aa587b0af7c3ad2cfdca3c79b11b55b6d93f060c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff21a5d284b5e74a5c835808aa587b0af7c3ad2cfdca3c79b11b55b6d93f060c", kill_on_drop: false }`
[INFO] [stderr]  Documenting stack-overflow v0.1.0 (/opt/rustwide/workdir/experiments/stack-overflow)
[INFO] [stderr]  Documenting signed-vs-unsigned v0.1.0 (/opt/rustwide/workdir/experiments/signed-vs-unsigned)
[INFO] [stderr]  Documenting multi-test v0.1.0 (/opt/rustwide/workdir/experiments/multi-test)
[INFO] [stderr]  Documenting lib-and-main-ex1 v0.1.0 (/opt/rustwide/workdir/experiments/lib-and-main-ex1)
[INFO] [stderr]  Documenting iter-with-last v0.1.0 (/opt/rustwide/workdir/experiments/iter-with-last)
[INFO] [stderr]  Documenting ast-visitor-etc v0.1.0 (/opt/rustwide/workdir/experiments/ast-visitor-etc)
[INFO] [stderr]  Documenting iter-freq v0.1.0 (/opt/rustwide/workdir/experiments/iter-freq)
[INFO] [stderr]  Documenting binary-search-index v0.1.0 (/opt/rustwide/workdir/experiments/binary-search-index)
[INFO] [stderr]  Documenting iter-to-arr v0.1.0 (/opt/rustwide/workdir/experiments/iter-to-arr)
[INFO] [stderr]  Documenting collatz-toctou v0.1.0 (/opt/rustwide/workdir/experiments/collatz-toctou)
[INFO] [stderr]  Documenting lambda-int1 v0.1.0 (/opt/rustwide/workdir/experiments/lambda-int1)
[INFO] [stderr]  Documenting string-builder v0.1.0 (/opt/rustwide/workdir/experiments/string-builder)
[INFO] [stderr]  Documenting bin-alarms v0.1.0 (/opt/rustwide/workdir/experiments/bitwise-alarms)
[INFO] [stderr]  Documenting stdin-take-nums v0.1.0 (/opt/rustwide/workdir/experiments/stdin-take-nums)
[INFO] [stderr] error: could not document `multi-test`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name multi_test experiments/multi-test/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1552d3d69b23817b -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `binary-search-index`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name binary_search_index experiments/binary-search-index/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=0b7b8e0ca725c94f -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `collatz-toctou`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name collatz_toctou experiments/collatz-toctou/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b1233b6a66e7c46d -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ff21a5d284b5e74a5c835808aa587b0af7c3ad2cfdca3c79b11b55b6d93f060c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff21a5d284b5e74a5c835808aa587b0af7c3ad2cfdca3c79b11b55b6d93f060c", kill_on_drop: false }`
[INFO] [stdout] ff21a5d284b5e74a5c835808aa587b0af7c3ad2cfdca3c79b11b55b6d93f060c