[INFO] fetching crate systemd 0.6.0...
[INFO] documenting systemd-0.6.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate systemd 0.6.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate systemd 0.6.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate systemd 0.6.0
[INFO] finished tweaking crates.io crate systemd 0.6.0
[INFO] tweaked toml for crates.io crate systemd 0.6.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate systemd 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f92c2c9f0a6ebc2f34b556e90a29bf6c3f135b268496e407d7504051c17a4233
[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" "f92c2c9f0a6ebc2f34b556e90a29bf6c3f135b268496e407d7504051c17a4233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f92c2c9f0a6ebc2f34b556e90a29bf6c3f135b268496e407d7504051c17a4233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92c2c9f0a6ebc2f34b556e90a29bf6c3f135b268496e407d7504051c17a4233", kill_on_drop: false }`
[INFO] [stdout] f92c2c9f0a6ebc2f34b556e90a29bf6c3f135b268496e407d7504051c17a4233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f8f15d6a14f8b917d5d4dfb579e6b9932f119bcc0117d7457eb9583071e16b5
[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" "1f8f15d6a14f8b917d5d4dfb579e6b9932f119bcc0117d7457eb9583071e16b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling build-env v0.2.0
[INFO] [stderr]     Checking utf8-cstr v0.1.6
[INFO] [stderr]     Checking cstr-argument v0.1.1
[INFO] [stderr]    Compiling libsystemd-sys v0.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling foreign-types-macros v0.2.1
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]  Documenting systemd v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ffi::daemon`
[INFO] [stdout]  --> src/daemon.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ffi::daemon as ffi;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^ no `daemon` in `daemon`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `ffi::login`
[INFO] [stdout]  --> src/login.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ffi::login as ffi;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `login` in `login`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `ffi` is ambiguous (name vs any other name during import resolution)
[INFO] [stdout]  --> src/daemon.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ffi::daemon as ffi;
[INFO] [stdout]   |     ^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout] note: `ffi` could refer to the module imported here
[INFO] [stdout]  --> src/daemon.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ffi::daemon as ffi;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = help: use `self::ffi` to refer to this module unambiguously
[INFO] [stdout] note: `ffi` could also refer to the crate imported here
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate libsystemd_sys as ffi;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = help: use `::ffi` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `ffi` is ambiguous (name vs any other name during import resolution)
[INFO] [stdout]  --> src/login.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ffi::login as ffi;
[INFO] [stdout]   |     ^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout] note: `ffi` could refer to the module imported here
[INFO] [stdout]  --> src/login.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ffi::login as ffi;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = help: use `self::ffi` to refer to this module unambiguously
[INFO] [stdout] note: `ffi` could also refer to the crate imported here
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate libsystemd_sys as ffi;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = help: use `::ffi` to refer to this crate unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0659.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `systemd`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name systemd src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="bus"' --cfg 'feature="default"' --cfg 'feature="journal"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cstr_argument=/opt/rustwide/target/debug/deps/libcstr_argument-d5ff55e7cf01151e.rmeta --extern foreign_types=/opt/rustwide/target/debug/deps/libforeign_types-b9507d8d4ce1bac9.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-b01e5f49cd1b74e8.rmeta --extern libsystemd_sys=/opt/rustwide/target/debug/deps/liblibsystemd_sys-52d3fb9d16738e56.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-8b25aaf2e71705fc.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-7c0aafbec5e5841d.rmeta --extern utf8_cstr=/opt/rustwide/target/debug/deps/libutf8_cstr-935059663c91684f.rmeta --cap-lints=warn --crate-version 0.6.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1f8f15d6a14f8b917d5d4dfb579e6b9932f119bcc0117d7457eb9583071e16b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f8f15d6a14f8b917d5d4dfb579e6b9932f119bcc0117d7457eb9583071e16b5", kill_on_drop: false }`
[INFO] [stdout] 1f8f15d6a14f8b917d5d4dfb579e6b9932f119bcc0117d7457eb9583071e16b5