[INFO] cloning repository https://github.com/zzeroo/xmz-test-shiftregisters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zzeroo/xmz-test-shiftregisters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzeroo%2Fxmz-test-shiftregisters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzeroo%2Fxmz-test-shiftregisters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44980fb70e3338f3f37dc7036d29c0c60e4287a7
[INFO] documenting zzeroo/xmz-test-shiftregisters against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzzeroo%2Fxmz-test-shiftregisters" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zzeroo/xmz-test-shiftregisters 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] started tweaking git repo https://github.com/zzeroo/xmz-test-shiftregisters
[INFO] finished tweaking git repo https://github.com/zzeroo/xmz-test-shiftregisters
[INFO] tweaked toml for git repo https://github.com/zzeroo/xmz-test-shiftregisters written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/zzeroo/xmz-test-shiftregisters already has a lockfile, it will not be regenerated
[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 bitflags v0.4.0
[INFO] [stderr]   Downloaded vec_map v0.8.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.15.1
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded atty v0.2.2
[INFO] [stderr]   Downloaded backtrace v0.3.2
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded gcc v0.3.46
[INFO] [stderr]   Downloaded unicode-width v0.1.4
[INFO] [stderr]   Downloaded clap v2.24.2
[INFO] [stderr]   Downloaded regex v0.1.80
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded cfg-if v0.1.0
[INFO] [stderr]   Downloaded utf8-ranges v0.1.3
[INFO] [stderr]   Downloaded bitflags v0.8.2
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.0
[INFO] [stderr]   Downloaded serde_derive v1.0.8
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] [stderr]   Downloaded aho-corasick v0.5.3
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded memchr v0.1.11
[INFO] [stderr]   Downloaded regex-syntax v0.3.9
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded thread-id v2.0.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded rustc-demangle v0.1.4
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded sysfs_gpio v0.5.0
[INFO] [stderr]   Downloaded thread_local v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] efd3a503db3430a3444a3a68cbf3afebe62a4fd3a14cbac2ccc159c203e41d08
[INFO] running `Command { std: "docker" "start" "-a" "efd3a503db3430a3444a3a68cbf3afebe62a4fd3a14cbac2ccc159c203e41d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efd3a503db3430a3444a3a68cbf3afebe62a4fd3a14cbac2ccc159c203e41d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efd3a503db3430a3444a3a68cbf3afebe62a4fd3a14cbac2ccc159c203e41d08", kill_on_drop: false }`
[INFO] [stdout] efd3a503db3430a3444a3a68cbf3afebe62a4fd3a14cbac2ccc159c203e41d08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 8a05b8f3215ea9e856f1c94e4b04358ca5735567800e3e3212035e820330fbc5
[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" "8a05b8f3215ea9e856f1c94e4b04358ca5735567800e3e3212035e820330fbc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]     Checking sysfs_gpio v0.5.0
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]  Documenting xmz-test-shiftregisters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.08s
[INFO] running `Command { std: "docker" "inspect" "8a05b8f3215ea9e856f1c94e4b04358ca5735567800e3e3212035e820330fbc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a05b8f3215ea9e856f1c94e4b04358ca5735567800e3e3212035e820330fbc5", kill_on_drop: false }`
[INFO] [stdout] 8a05b8f3215ea9e856f1c94e4b04358ca5735567800e3e3212035e820330fbc5