[INFO] cloning repository https://github.com/tekjar/systemd-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tekjar/systemd-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftekjar%2Fsystemd-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftekjar%2Fsystemd-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59b10ef7bd5a181deea1836cc0a976f4e6ac01f3
[INFO] documenting tekjar/systemd-test 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%2Ftekjar%2Fsystemd-test" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tekjar/systemd-test 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/tekjar/systemd-test
[INFO] finished tweaking git repo https://github.com/tekjar/systemd-test
[INFO] tweaked toml for git repo https://github.com/tekjar/systemd-test written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tekjar/systemd-test 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/kteza1/rust-systemd`
[INFO] [stderr]     Updating git submodule `https://github.com/systemd/systemd.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-cstr v0.1.6
[INFO] [stderr]   Downloaded mbox v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ddd3f75b0f667ad4ed6c41e1abe78eb7a79d2e421512eca81e0d9ac94fc1ae0b
[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" "ddd3f75b0f667ad4ed6c41e1abe78eb7a79d2e421512eca81e0d9ac94fc1ae0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddd3f75b0f667ad4ed6c41e1abe78eb7a79d2e421512eca81e0d9ac94fc1ae0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd3f75b0f667ad4ed6c41e1abe78eb7a79d2e421512eca81e0d9ac94fc1ae0b", kill_on_drop: false }`
[INFO] [stdout] ddd3f75b0f667ad4ed6c41e1abe78eb7a79d2e421512eca81e0d9ac94fc1ae0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 54afd00ac3a399a02d2c156bb8a5f0231840a88245305ae773961ec7e3531af0
[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" "54afd00ac3a399a02d2c156bb8a5f0231840a88245305ae773961ec7e3531af0", 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] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]     Checking utf8-cstr v0.1.6
[INFO] [stderr]    Compiling mbox v0.1.3
[INFO] [stderr]    Compiling libsystemd-sys v0.0.10 (https://github.com/kteza1/rust-systemd#f1178ca4)
[INFO] [stdout] error: unexpected token: `<-`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mbox-0.1.3/src/mbox.rs:188:16
[INFO] [stdout]     |
[INFO] [stdout] 188 |         MALLOC <- value.clone()
[INFO] [stdout]     |                ^^
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to write a comparison against a negative value, add a space in between `<` and `-`
[INFO] [stdout]     |
[INFO] [stdout] 188 |         MALLOC < - value.clone()
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mbox-0.1.3/src/mbox.rs:114:23
[INFO] [stdout]     |
[INFO] [stdout] 114 |         self.as_ptr().fmt(formatter)
[INFO] [stdout]     |                       ^^^ multiple `fmt` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::fmt::Pointer` for the type `*const T`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `std::fmt::Debug` for the type `*const T`
[INFO] [stdout] note: candidate #3 is defined in the trait `std::fmt::Display`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 114 |         std::fmt::Pointer::fmt(&self.as_ptr(), formatter)
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 114 |         std::fmt::Debug::fmt(&self.as_ptr(), formatter)
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #3
[INFO] [stdout]     |
[INFO] [stdout] 114 |         std::fmt::Display::fmt(self.as_ptr(), formatter)
[INFO] [stdout]     |
[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 E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mbox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "54afd00ac3a399a02d2c156bb8a5f0231840a88245305ae773961ec7e3531af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54afd00ac3a399a02d2c156bb8a5f0231840a88245305ae773961ec7e3531af0", kill_on_drop: false }`
[INFO] [stdout] 54afd00ac3a399a02d2c156bb8a5f0231840a88245305ae773961ec7e3531af0