[INFO] cloning repository https://github.com/parallel-programming-hwr/benchmarks-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parallel-programming-hwr/benchmarks-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparallel-programming-hwr%2Fbenchmarks-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparallel-programming-hwr%2Fbenchmarks-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e8af7676ba840e3f401f09b3e0d19231eca6f45
[INFO] documenting parallel-programming-hwr/benchmarks-rs 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%2Fparallel-programming-hwr%2Fbenchmarks-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parallel-programming-hwr/benchmarks-rs 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/parallel-programming-hwr/benchmarks-rs
[INFO] finished tweaking git repo https://github.com/parallel-programming-hwr/benchmarks-rs
[INFO] tweaked toml for git repo https://github.com/parallel-programming-hwr/benchmarks-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/parallel-programming-hwr/benchmarks-rs 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 generator v0.6.20
[INFO] [stderr]   Downloaded may v0.3.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] b84bd3277049bf9b15512ac257d548fc1267fb84d35e4df79912c261540b3aa7
[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" "b84bd3277049bf9b15512ac257d548fc1267fb84d35e4df79912c261540b3aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b84bd3277049bf9b15512ac257d548fc1267fb84d35e4df79912c261540b3aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b84bd3277049bf9b15512ac257d548fc1267fb84d35e4df79912c261540b3aa7", kill_on_drop: false }`
[INFO] [stdout] b84bd3277049bf9b15512ac257d548fc1267fb84d35e4df79912c261540b3aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6843ae27ada948a41c252c7fff0d6c37e41e8bb2fecd33e9dddc52895a0db6e8
[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" "6843ae27ada948a41c252c7fff0d6c37e41e8bb2fecd33e9dddc52895a0db6e8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling may_queue v0.1.7
[INFO] [stderr]    Compiling may v0.3.17
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling generator v0.6.20
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking benchlib-rs v0.3.4
[INFO] [stderr]  Documenting benchmarks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.29s
[INFO] running `Command { std: "docker" "inspect" "6843ae27ada948a41c252c7fff0d6c37e41e8bb2fecd33e9dddc52895a0db6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6843ae27ada948a41c252c7fff0d6c37e41e8bb2fecd33e9dddc52895a0db6e8", kill_on_drop: false }`
[INFO] [stdout] 6843ae27ada948a41c252c7fff0d6c37e41e8bb2fecd33e9dddc52895a0db6e8