[INFO] cloning repository https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRust-Mikrocontroller-Praktikum-2017%2Fsplines-render", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRust-Mikrocontroller-Praktikum-2017%2Fsplines-render'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 707a641d196df00d09609739d5deb228331ce292
[INFO] documenting Rust-Mikrocontroller-Praktikum-2017/splines-render 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%2FRust-Mikrocontroller-Praktikum-2017%2Fsplines-render" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render 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/Rust-Mikrocontroller-Praktikum-2017/splines-render
[INFO] finished tweaking git repo https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render
[INFO] tweaked toml for git repo https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Rust-Mikrocontroller-Praktikum-2017/splines-render 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]     Updating git repository `https://github.com/Rust-Mikrocontroller-Praktikum-2017/renderer`
[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] 7a6934d85bd66bf78b6107afae0c67c90986c75b5efe1243d96a885f35c2ada4
[INFO] running `Command { std: "docker" "start" "-a" "7a6934d85bd66bf78b6107afae0c67c90986c75b5efe1243d96a885f35c2ada4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a6934d85bd66bf78b6107afae0c67c90986c75b5efe1243d96a885f35c2ada4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6934d85bd66bf78b6107afae0c67c90986c75b5efe1243d96a885f35c2ada4", kill_on_drop: false }`
[INFO] [stdout] 7a6934d85bd66bf78b6107afae0c67c90986c75b5efe1243d96a885f35c2ada4
[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] 8fb8585e4c33c1d0351e1097f24f3751ca4ea9751bd9d9c8cd292685bd84e7e5
[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" "8fb8585e4c33c1d0351e1097f24f3751ca4ea9751bd9d9c8cd292685bd84e7e5", kill_on_drop: false }`
[INFO] [stderr]     Checking renderer v0.1.0 (https://github.com/Rust-Mikrocontroller-Praktikum-2017/renderer?branch=testing#5e489e25)
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/renderer-cc2e39d87e65b38a/5e489e2/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `renderer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8fb8585e4c33c1d0351e1097f24f3751ca4ea9751bd9d9c8cd292685bd84e7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb8585e4c33c1d0351e1097f24f3751ca4ea9751bd9d9c8cd292685bd84e7e5", kill_on_drop: false }`
[INFO] [stdout] 8fb8585e4c33c1d0351e1097f24f3751ca4ea9751bd9d9c8cd292685bd84e7e5