[INFO] cloning repository https://github.com/hinagis/kupc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hinagis/kupc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinagis%2Fkupc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhinagis%2Fkupc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66685867b2f1ff9d3e558c110ed7a0d2af9f3b1f
[INFO] documenting hinagis/kupc2020 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%2Fhinagis%2Fkupc2020" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hinagis/kupc2020 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/hinagis/kupc2020
[INFO] finished tweaking git repo https://github.com/hinagis/kupc2020
[INFO] tweaked toml for git repo https://github.com/hinagis/kupc2020 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hinagis/kupc2020 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d4acc2db5ecd262f17a694e99fc8d2e73f375beca845e937fd3b19de0b954811
[INFO] running `Command { std: "docker" "start" "-a" "d4acc2db5ecd262f17a694e99fc8d2e73f375beca845e937fd3b19de0b954811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4acc2db5ecd262f17a694e99fc8d2e73f375beca845e937fd3b19de0b954811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4acc2db5ecd262f17a694e99fc8d2e73f375beca845e937fd3b19de0b954811", kill_on_drop: false }`
[INFO] [stdout] d4acc2db5ecd262f17a694e99fc8d2e73f375beca845e937fd3b19de0b954811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e88d89ec1c8a5a339dec0f376c481d00da382873faef8060bbbef6c0ac7db77
[INFO] running `Command { std: "docker" "start" "-a" "6e88d89ec1c8a5a339dec0f376c481d00da382873faef8060bbbef6c0ac7db77", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling proconio-derive v0.1.6
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]  Documenting kupc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `kupc2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name i src/bin/i.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=85387e53d584f0bf -L dependency=/opt/rustwide/target/debug/deps --extern proconio=/opt/rustwide/target/debug/deps/libproconio-9b7a3418dff6607b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-030b61e71ea20107.rmeta --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 `kupc2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name h src/bin/h.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3a46473547923036 -L dependency=/opt/rustwide/target/debug/deps --extern proconio=/opt/rustwide/target/debug/deps/libproconio-9b7a3418dff6607b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-030b61e71ea20107.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `kupc2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name l src/bin/l.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a05834266132fba3 -L dependency=/opt/rustwide/target/debug/deps --extern proconio=/opt/rustwide/target/debug/deps/libproconio-9b7a3418dff6607b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-030b61e71ea20107.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `kupc2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name a src/bin/a.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1642d7dc125e7a5f -L dependency=/opt/rustwide/target/debug/deps --extern proconio=/opt/rustwide/target/debug/deps/libproconio-9b7a3418dff6607b.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-030b61e71ea20107.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "6e88d89ec1c8a5a339dec0f376c481d00da382873faef8060bbbef6c0ac7db77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e88d89ec1c8a5a339dec0f376c481d00da382873faef8060bbbef6c0ac7db77", kill_on_drop: false }`
[INFO] [stdout] 6e88d89ec1c8a5a339dec0f376c481d00da382873faef8060bbbef6c0ac7db77