[INFO] fetching crate ex_merge_sort_by_key 0.2.0...
[INFO] documenting ex_merge_sort_by_key-0.2.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate ex_merge_sort_by_key 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate ex_merge_sort_by_key 0.2.0 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 ex_merge_sort_by_key 0.2.0
[INFO] finished tweaking crates.io crate ex_merge_sort_by_key 0.2.0
[INFO] tweaked toml for crates.io crate ex_merge_sort_by_key 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] c21ebb9c90ed6e0adde692c621d95d0ff77e60d3fc4481602c720bc1a206032c
[INFO] running `Command { std: "docker" "start" "-a" "c21ebb9c90ed6e0adde692c621d95d0ff77e60d3fc4481602c720bc1a206032c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c21ebb9c90ed6e0adde692c621d95d0ff77e60d3fc4481602c720bc1a206032c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c21ebb9c90ed6e0adde692c621d95d0ff77e60d3fc4481602c720bc1a206032c", kill_on_drop: false }`
[INFO] [stdout] c21ebb9c90ed6e0adde692c621d95d0ff77e60d3fc4481602c720bc1a206032c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 8a63525a674ca8a2e8fed9afb19be95880f175b5b11f1b51cfabb252319d7e88
[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" "8a63525a674ca8a2e8fed9afb19be95880f175b5b11f1b51cfabb252319d7e88", kill_on_drop: false }`
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]  Documenting ex_merge_sort_by_key v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "8a63525a674ca8a2e8fed9afb19be95880f175b5b11f1b51cfabb252319d7e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a63525a674ca8a2e8fed9afb19be95880f175b5b11f1b51cfabb252319d7e88", kill_on_drop: false }`
[INFO] [stdout] 8a63525a674ca8a2e8fed9afb19be95880f175b5b11f1b51cfabb252319d7e88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 57b9a460214d41af4103948b078ccfe30e7b8066abe51ba045402fc899ea73e5
[INFO] running `Command { std: "docker" "start" "-a" "57b9a460214d41af4103948b078ccfe30e7b8066abe51ba045402fc899ea73e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]  Documenting ex_merge_sort_by_key v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "57b9a460214d41af4103948b078ccfe30e7b8066abe51ba045402fc899ea73e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b9a460214d41af4103948b078ccfe30e7b8066abe51ba045402fc899ea73e5", kill_on_drop: false }`
[INFO] [stdout] 57b9a460214d41af4103948b078ccfe30e7b8066abe51ba045402fc899ea73e5