[INFO] cloning repository https://github.com/abustany/flouze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abustany/flouze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabustany%2Fflouze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabustany%2Fflouze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a97debb0c46f1c8b88ec2983a90ce83198faf849
[INFO] documenting abustany/flouze against beta-2021-09-08 for beta-1.56-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabustany%2Fflouze" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/abustany/flouze on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/abustany/flouze
[INFO] finished tweaking git repo https://github.com/abustany/flouze
[INFO] tweaked toml for git repo https://github.com/abustany/flouze written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/abustany/flouze already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded pagecache v0.19.4
[INFO] [stderr]   Downloaded jsonrpc-core v13.2.0
[INFO] [stderr]   Downloaded indexmap v1.2.0
[INFO] [stderr]   Downloaded hyper v0.12.35
[INFO] [stderr]   Downloaded proc-macro-error v0.2.6
[INFO] [stderr]   Downloaded env_logger v0.7.0
[INFO] [stderr]   Downloaded pkg-config v0.3.16
[INFO] [stderr]   Downloaded openssl-sys v0.9.49
[INFO] [stderr]   Downloaded structopt v0.3.2
[INFO] [stderr]   Downloaded structopt-derive v0.3.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.4
[INFO] [stderr]   Downloaded sled v0.28.0
[INFO] [stderr]   Downloaded prost v0.5.0
[INFO] [stderr]   Downloaded prost-derive v0.5.0
[INFO] [stderr]   Downloaded prost-types v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.45
[INFO] [stderr]   Downloaded jsonrpc-core-client v13.2.0
[INFO] [stderr]   Downloaded jsonrpc-client-transports v13.2.0
[INFO] [stderr]   Downloaded jsonrpc-server-utils v13.2.0
[INFO] [stderr]   Downloaded bitflags v1.2.0
[INFO] [stderr]   Downloaded jni v0.13.1
[INFO] [stderr]   Downloaded multimap v0.4.0
[INFO] [stderr]   Downloaded jsonrpc-pubsub v13.2.0
[INFO] [stderr]   Downloaded jsonrpc-derive v13.2.0
[INFO] [stderr]   Downloaded prost-build v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.38
[INFO] [stderr]   Downloaded toml v0.5.3
[INFO] [stderr]   Downloaded globset v0.4.4
[INFO] [stderr]   Downloaded jsonrpc-http-server v13.2.0
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded serde_bytes v0.11.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f0bf9b7e6f2a7bb8cdb9a3d27635339ba15f17a051465c9ddfb8b1f50a44f84
[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" "4f0bf9b7e6f2a7bb8cdb9a3d27635339ba15f17a051465c9ddfb8b1f50a44f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f0bf9b7e6f2a7bb8cdb9a3d27635339ba15f17a051465c9ddfb8b1f50a44f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0bf9b7e6f2a7bb8cdb9a3d27635339ba15f17a051465c9ddfb8b1f50a44f84", kill_on_drop: false }`
[INFO] [stdout] 4f0bf9b7e6f2a7bb8cdb9a3d27635339ba15f17a051465c9ddfb8b1f50a44f84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdfec88bbfd2ef9ab75b165ef253edbe589a7b300481796d75abb4c44597cab3
[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" "bdfec88bbfd2ef9ab75b165ef253edbe589a7b300481796d75abb4c44597cab3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking env_logger v0.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling structopt-derive v0.3.2
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking structopt v0.3.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.5.0/src/lib.rs:114:14
[INFO] [stdout]     |
[INFO] [stdout] 114 |             .intersperse(quote!(|));
[INFO] [stdout]     |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 110 ~         let tags = Iterator::intersperse(field
[INFO] [stdout] 111 +             .tags()
[INFO] [stdout] 112 +             .into_iter()
[INFO] [stdout] 113 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 114 +         let mut _s = $crate::__rt::TokenStream::new();
[INFO] [stdout] 115 +         let _span = $span;
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 110 ~         let tags = Itertools::intersperse(field
[INFO] [stdout] 111 +             .tags()
[INFO] [stdout] 112 +             .into_iter()
[INFO] [stdout] 113 +             .map(|tag| quote!(#tag)), {
[INFO] [stdout] 114 +         let mut _s = $crate::__rt::TokenStream::new();
[INFO] [stdout] 115 +         let _span = $span;
[INFO] [stdout]   ...
[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 E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prost-derive` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bdfec88bbfd2ef9ab75b165ef253edbe589a7b300481796d75abb4c44597cab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdfec88bbfd2ef9ab75b165ef253edbe589a7b300481796d75abb4c44597cab3", kill_on_drop: false }`
[INFO] [stdout] bdfec88bbfd2ef9ab75b165ef253edbe589a7b300481796d75abb4c44597cab3