[INFO] cloning repository https://github.com/iximiuz/shimmy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iximiuz/shimmy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximiuz%2Fshimmy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximiuz%2Fshimmy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fb97a1b5a84596d3aba19944d328f2c1e1bdac8
[INFO] documenting iximiuz/shimmy against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiximiuz%2Fshimmy" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iximiuz/shimmy 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 git repo https://github.com/iximiuz/shimmy
[INFO] finished tweaking git repo https://github.com/iximiuz/shimmy
[INFO] tweaked toml for git repo https://github.com/iximiuz/shimmy written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/iximiuz/shimmy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 74e721fa88b53a44a0672658782e5d5582bf203a22cd199f18d5f2ab4bb327cc
[INFO] running `Command { std: "docker" "start" "-a" "74e721fa88b53a44a0672658782e5d5582bf203a22cd199f18d5f2ab4bb327cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74e721fa88b53a44a0672658782e5d5582bf203a22cd199f18d5f2ab4bb327cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74e721fa88b53a44a0672658782e5d5582bf203a22cd199f18d5f2ab4bb327cc", kill_on_drop: false }`
[INFO] [stdout] 74e721fa88b53a44a0672658782e5d5582bf203a22cd199f18d5f2ab4bb327cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 760359972ef22550eaabfa4382b0b6e402ecb66367598f87c42712dbfdd98bc3
[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" "760359972ef22550eaabfa4382b0b6e402ecb66367598f87c42712dbfdd98bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking syslog v5.0.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking shimmy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting shimmy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `shimmy::nixtools::set_child_subreaper`, `shimmy::nixtools::signals_block`
[INFO] [stdout]   --> src/playground/signalfd.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | use shimmy::nixtools::{set_child_subreaper, signals_block};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^ no `signals_block` in `nixtools`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        no `set_child_subreaper` in `nixtools`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `shimmy`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name signalfd src/playground/signalfd.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-052fa75ae8d3414e.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-67b1975f20521804.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f96ba0118540bef9.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-1c73270922eccaf8.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-de7cdd98c90daa43.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-73d140f550f2f849.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-25e50c1644e6bf11.rmeta --extern shimmy=/opt/rustwide/target/debug/deps/libshimmy-db0d36b2ce327b0e.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-7a4d23c4dd9de336.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-a5bccca6ca7564b3.rmeta --cap-lints=warn` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "760359972ef22550eaabfa4382b0b6e402ecb66367598f87c42712dbfdd98bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760359972ef22550eaabfa4382b0b6e402ecb66367598f87c42712dbfdd98bc3", kill_on_drop: false }`
[INFO] [stdout] 760359972ef22550eaabfa4382b0b6e402ecb66367598f87c42712dbfdd98bc3