[INFO] cloning repository https://github.com/Shock-1/sam3x8e
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shock-1/sam3x8e" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShock-1%2Fsam3x8e", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShock-1%2Fsam3x8e'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6f6ec773c0af37ed075a0b11faaff2d4b99e49e
[INFO] documenting Shock-1/sam3x8e against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShock-1%2Fsam3x8e" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shock-1/sam3x8e on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Shock-1/sam3x8e
[INFO] finished tweaking git repo https://github.com/Shock-1/sam3x8e
[INFO] tweaked toml for git repo https://github.com/Shock-1/sam3x8e written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Shock-1/sam3x8e already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6b4912302f9350724f38bd23599c01288ece343195dfc171238a95aa324938d
[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" "a6b4912302f9350724f38bd23599c01288ece343195dfc171238a95aa324938d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6b4912302f9350724f38bd23599c01288ece343195dfc171238a95aa324938d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b4912302f9350724f38bd23599c01288ece343195dfc171238a95aa324938d", kill_on_drop: false }`
[INFO] [stdout] a6b4912302f9350724f38bd23599c01288ece343195dfc171238a95aa324938d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a048d7825fd0ae1c3ed20e8e7abefb890f4c3b8411bcf80be4a1020f9dd51c3
[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" "9a048d7825fd0ae1c3ed20e8e7abefb890f4c3b8411bcf80be4a1020f9dd51c3", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.0
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling alt-sam3x8e v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking as-slice v0.1.0
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr]  Documenting alt-sam3x8e v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `alt-sam3x8e`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name alt_sam3x8e src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-728af65ff2517c4a.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-ba4561320287567f.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-24e9bb05980248c2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9a048d7825fd0ae1c3ed20e8e7abefb890f4c3b8411bcf80be4a1020f9dd51c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a048d7825fd0ae1c3ed20e8e7abefb890f4c3b8411bcf80be4a1020f9dd51c3", kill_on_drop: false }`
[INFO] [stdout] 9a048d7825fd0ae1c3ed20e8e7abefb890f4c3b8411bcf80be4a1020f9dd51c3