[INFO] fetching crate neobirth 0.1.1...
[INFO] documenting neobirth-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate neobirth 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate neobirth 0.1.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking crates.io crate neobirth 0.1.1
[INFO] finished tweaking crates.io crate neobirth 0.1.1
[INFO] tweaked toml for crates.io crate neobirth 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded ws2812-timer-delay v0.1.0
[INFO] [stderr]   Downloaded smart-leds-trait v0.1.1
[INFO] [stderr]   Downloaded atsamd51g19a v0.4.0
[INFO] [stderr]   Downloaded trellis_m4 v0.1.2
[INFO] [stderr]   Downloaded smart-leds v0.1.0
[INFO] [stderr]   Downloaded atsamd-hal v0.4.1
[INFO] [stderr]   Downloaded purezen v0.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 50b2660df1082f5160694b7d78a632c706ad5c40c4db07f9e5a1bbe2eba9c45a
[INFO] running `Command { std: "docker" "start" "-a" "50b2660df1082f5160694b7d78a632c706ad5c40c4db07f9e5a1bbe2eba9c45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50b2660df1082f5160694b7d78a632c706ad5c40c4db07f9e5a1bbe2eba9c45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50b2660df1082f5160694b7d78a632c706ad5c40c4db07f9e5a1bbe2eba9c45a", kill_on_drop: false }`
[INFO] [stdout] 50b2660df1082f5160694b7d78a632c706ad5c40c4db07f9e5a1bbe2eba9c45a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1215f88b70f26313b667b9460219d38ccbe235abba66e2d23dad4981ab4b68e3
[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" "1215f88b70f26313b667b9460219d38ccbe235abba66e2d23dad4981ab4b68e3", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking bytemuck v1.4.0
[INFO] [stderr]    Compiling atsamd51g19a v0.4.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling heapless v0.4.4
[INFO] [stderr]    Compiling trellis_m4 v0.1.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking typenum v1.12.0
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking bare-metal v0.2.5
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking smart-leds-trait v0.1.1
[INFO] [stderr]     Checking smart-leds v0.1.0
[INFO] [stderr]     Checking ws2812-timer-delay v0.1.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stderr]     Checking cortex-m v0.6.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking purezen v0.0.2
[INFO] [stderr]     Checking atsamd-hal v0.4.1
[INFO] [stderr]  Documenting neobirth v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.24s
[INFO] running `Command { std: "docker" "inspect" "1215f88b70f26313b667b9460219d38ccbe235abba66e2d23dad4981ab4b68e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1215f88b70f26313b667b9460219d38ccbe235abba66e2d23dad4981ab4b68e3", kill_on_drop: false }`
[INFO] [stdout] 1215f88b70f26313b667b9460219d38ccbe235abba66e2d23dad4981ab4b68e3