[INFO] fetching crate nanny 0.0.9... [INFO] documenting nanny-0.0.9 against 1.46.0 for beta-1.47-rustdoc-1 [INFO] extracting crate nanny 0.0.9 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate nanny 0.0.9 on toolchain 1.46.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate nanny 0.0.9 [INFO] removed path dependency nanny-sys from crates.io crate nanny 0.0.9 [INFO] finished tweaking crates.io crate nanny 0.0.9 [INFO] tweaked toml for crates.io crate nanny 0.0.9 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6af11d0f257d7786b93dff28140b3da63c225cd54efac106950ce9a6f23ced45 [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" "6af11d0f257d7786b93dff28140b3da63c225cd54efac106950ce9a6f23ced45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6af11d0f257d7786b93dff28140b3da63c225cd54efac106950ce9a6f23ced45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6af11d0f257d7786b93dff28140b3da63c225cd54efac106950ce9a6f23ced45", kill_on_drop: false }` [INFO] [stdout] 6af11d0f257d7786b93dff28140b3da63c225cd54efac106950ce9a6f23ced45 [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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20c6d9b6445c2d0443e42f65c3ec8a8d7b3fabeed9b2982cba09c4ec4e3a03ad [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" "20c6d9b6445c2d0443e42f65c3ec8a8d7b3fabeed9b2982cba09c4ec4e3a03ad", kill_on_drop: false }` [INFO] [stderr] Compiling nanny-sys v0.0.6 [INFO] [stderr] error: failed to run custom build command for `nanny-sys v0.0.6` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/nanny-sys-4ae52c9c997fb91d/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nanny-sys-0.0.6/build.rs:23:54 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5591b686dde5 - backtrace::backtrace::libunwind::trace::h14d338b30b3ea0a7 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x5591b686dde5 - backtrace::backtrace::trace_unsynchronized::h73ea91d74a3fd67f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5591b686dde5 - std::sys_common::backtrace::_print_fmt::hd42948c952866e12 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x5591b686dde5 - ::fmt::ha8f928866ff7571e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x5591b68926cc - core::fmt::write::he0c1e5f7426d2718 [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x5591b6869ec2 - std::io::Write::write_fmt::hf3afc6cfd57d0033 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x5591b6870570 - std::sys_common::backtrace::_print::hfc0110703f3696fd [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x5591b6870570 - std::sys_common::backtrace::print::h3f77c6990ddfaa22 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x5591b6870570 - std::panicking::default_hook::{{closure}}::heae49580a8d62d75 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x5591b68702bc - std::panicking::default_hook::hecc34e3f729e213c [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x5591b6870bb3 - std::panicking::rust_panic_with_hook::he82f5d0644692441 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x5591b68707ab - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:437 [INFO] [stderr] 12: 0x5591b6891ad1 - core::panicking::panic_fmt::h09c929f06bb87c98 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x5591b6891a1d - core::panicking::panic::h7ece43057e5422d4 [INFO] [stderr] at src/libcore/panicking.rs:50 [INFO] [stderr] 14: 0x5591b6824d58 - core::option::Option::unwrap::hf3afd41509f914c1 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libcore/macros/mod.rs:10 [INFO] [stderr] 15: 0x5591b68249ad - build_script_build::build_object_file::hc7109d56326e5b18 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nanny-sys-0.0.6/build.rs:23 [INFO] [stderr] 16: 0x5591b6824ce6 - build_script_build::main::he9b5d8d46950c224 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nanny-sys-0.0.6/build.rs:41 [INFO] [stderr] 17: 0x5591b68243db - std::rt::lang_start::{{closure}}::h43af9e3929518290 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 18: 0x5591b6870f83 - std::rt::lang_start_internal::{{closure}}::h5d3ea623498f5f43 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 19: 0x5591b6870f83 - std::panicking::try::do_call::hac65e71be769a440 [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 20: 0x5591b6870f83 - std::panicking::try::hd4706e264bcf6712 [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 21: 0x5591b6870f83 - std::panic::catch_unwind::h948a0fb4a8b3ee82 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x5591b6870f83 - std::rt::lang_start_internal::h72cc068ed2d0ac53 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x5591b68243b7 - std::rt::lang_start::h3be8216131fca5e8 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x5591b6824d1a - main [INFO] [stderr] 25: 0x7f720a0580b3 - __libc_start_main [INFO] [stderr] 26: 0x5591b682419e - _start [INFO] [stderr] 27: 0x0 - [INFO] running `Command { std: "docker" "inspect" "20c6d9b6445c2d0443e42f65c3ec8a8d7b3fabeed9b2982cba09c4ec4e3a03ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20c6d9b6445c2d0443e42f65c3ec8a8d7b3fabeed9b2982cba09c4ec4e3a03ad", kill_on_drop: false }` [INFO] [stdout] 20c6d9b6445c2d0443e42f65c3ec8a8d7b3fabeed9b2982cba09c4ec4e3a03ad