[INFO] cloning repository https://github.com/psimonyi/songset
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psimonyi/songset" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimonyi%2Fsongset", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimonyi%2Fsongset'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e68587c8f1ea47efce9bea41a4ace03fff7e46c1
[INFO] documenting psimonyi/songset against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsimonyi%2Fsongset" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/psimonyi/songset on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/psimonyi/songset
[INFO] finished tweaking git repo https://github.com/psimonyi/songset
[INFO] tweaked toml for git repo https://github.com/psimonyi/songset written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/psimonyi/songset already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-05-20" "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] 1885efcf6f43b77cbb76e1afc0317fc02cac666bdeefd9ea9c7ebb001924114f
[INFO] running `Command { std: "docker" "start" "-a" "1885efcf6f43b77cbb76e1afc0317fc02cac666bdeefd9ea9c7ebb001924114f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1885efcf6f43b77cbb76e1afc0317fc02cac666bdeefd9ea9c7ebb001924114f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1885efcf6f43b77cbb76e1afc0317fc02cac666bdeefd9ea9c7ebb001924114f", kill_on_drop: false }`
[INFO] [stdout] 1885efcf6f43b77cbb76e1afc0317fc02cac666bdeefd9ea9c7ebb001924114f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-05-20" "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] 2e3a1e34c3cb68eda8ff91628f54f9968b2aa5ac69e276ddeaba661f602cf162
[INFO] running `Command { std: "docker" "start" "-a" "2e3a1e34c3cb68eda8ff91628f54f9968b2aa5ac69e276ddeaba661f602cf162", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.3.0
[INFO] [stderr]    Compiling gio v0.3.0
[INFO] [stderr]     Checking c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.7.0
[INFO] [stderr]    Compiling gtk v0.3.0
[INFO] [stderr]    Compiling pangocairo v0.4.1
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gio-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling pango-sys v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.5.0
[INFO] [stderr]    Compiling gdk-sys v0.5.0
[INFO] [stderr]    Compiling atk-sys v0.5.0
[INFO] [stderr]    Compiling pangocairo-sys v0.6.0
[INFO] [stderr]    Compiling gtk-sys v0.5.0
[INFO] [stderr]    Compiling peg v0.5.4
[INFO] [stderr]    Compiling songset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking glib v0.4.0
[INFO] [stderr]     Checking pango v0.3.0
[INFO] [stderr]  Documenting songset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "2e3a1e34c3cb68eda8ff91628f54f9968b2aa5ac69e276ddeaba661f602cf162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e3a1e34c3cb68eda8ff91628f54f9968b2aa5ac69e276ddeaba661f602cf162", kill_on_drop: false }`
[INFO] [stdout] 2e3a1e34c3cb68eda8ff91628f54f9968b2aa5ac69e276ddeaba661f602cf162