[INFO] cloning repository https://github.com/dmichiels/RustFBP
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmichiels/RustFBP" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88859ff8361765c5fd3d28b2a5771bdbf12fa035
[INFO] documenting dmichiels/RustFBP against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmichiels%2FRustFBP" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmichiels/RustFBP on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmichiels/RustFBP
[INFO] finished tweaking git repo https://github.com/dmichiels/RustFBP
[INFO] tweaked toml for git repo https://github.com/dmichiels/RustFBP written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/dmichiels/RustFBP already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libloading v0.2.0
[INFO] [stderr]   Downloaded capnpc v0.5.1
[INFO] [stderr]   Downloaded capnp v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 042cb09049068c04264b9303b9d99174b921f4a7040264ffe42b02c122d53cf9
[INFO] running `Command { std: "docker" "start" "-a" "042cb09049068c04264b9303b9d99174b921f4a7040264ffe42b02c122d53cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "042cb09049068c04264b9303b9d99174b921f4a7040264ffe42b02c122d53cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "042cb09049068c04264b9303b9d99174b921f4a7040264ffe42b02c122d53cf9", kill_on_drop: false }`
[INFO] [stdout] 042cb09049068c04264b9303b9d99174b921f4a7040264ffe42b02c122d53cf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] cc30bfc0ebc345bfe49dd82cb748ea7c710431a1151a2a70875948edfff901db
[INFO] running `Command { std: "docker" "start" "-a" "cc30bfc0ebc345bfe49dd82cb748ea7c710431a1151a2a70875948edfff901db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]    Compiling libloading v0.2.0
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking capnp v0.5.2
[INFO] [stdout] error[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.5.2/src/private/layout.rs:630:47
[INFO] [stdout]     |
[INFO] [stdout] 630 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stdout]     |                        ----------- ---------  ^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stdout]     |                        |           |
[INFO] [stdout]     |                        |           mutable borrow occurs here
[INFO] [stdout]     |                        mutable borrow later used by call
[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 E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `capnp` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cc30bfc0ebc345bfe49dd82cb748ea7c710431a1151a2a70875948edfff901db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc30bfc0ebc345bfe49dd82cb748ea7c710431a1151a2a70875948edfff901db", kill_on_drop: false }`
[INFO] [stdout] cc30bfc0ebc345bfe49dd82cb748ea7c710431a1151a2a70875948edfff901db