[INFO] fetching crate potatonet-node 0.4.3...
[INFO] testing potatonet-node-0.4.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate potatonet-node 0.4.3 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate potatonet-node 0.4.3 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 crates.io crate potatonet-node 0.4.3
[INFO] finished tweaking crates.io crate potatonet-node 0.4.3
[INFO] tweaked toml for crates.io crate potatonet-node 0.4.3 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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 rmp v0.8.10
[INFO] [stderr]   Downloaded potatonet-codegen v0.4.3
[INFO] [stderr]   Downloaded potatonet-client v0.4.3
[INFO] [stderr]   Downloaded potatonet-common v0.4.3
[INFO] [stderr]   Downloaded rmp-serde v0.14.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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] 126373a33ea57df5a17c881b6c45c9ece0c9706c58b35afae1c0bd25cc026508
[INFO] running `Command { std: "docker" "start" "-a" "126373a33ea57df5a17c881b6c45c9ece0c9706c58b35afae1c0bd25cc026508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "126373a33ea57df5a17c881b6c45c9ece0c9706c58b35afae1c0bd25cc026508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "126373a33ea57df5a17c881b6c45c9ece0c9706c58b35afae1c0bd25cc026508", kill_on_drop: false }`
[INFO] [stdout] 126373a33ea57df5a17c881b6c45c9ece0c9706c58b35afae1c0bd25cc026508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "RUSTFLAGS=--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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68862c3b44a96909f19b8c584b625ee2ddae6ba64a411b6119a1a696aee054dc
[INFO] running `Command { std: "docker" "start" "-a" "68862c3b44a96909f19b8c584b625ee2ddae6ba64a411b6119a1a696aee054dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling rmp v0.8.10
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling rmp-serde v0.14.4
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling potatonet-codegen v0.4.3
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling async-process v1.2.0
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling potatonet-common v0.4.3
[INFO] [stderr]    Compiling potatonet-client v0.4.3
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/potatonet-client-0.4.3/src/lib.rs:20:12
[INFO] [stdout]     |
[INFO] [stdout] 20  | use serde::export::PhantomData;
[INFO] [stdout]     |            ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `export` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.130/src/lib.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 | use self::__private as export;
[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 E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `potatonet-client` 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" "68862c3b44a96909f19b8c584b625ee2ddae6ba64a411b6119a1a696aee054dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68862c3b44a96909f19b8c584b625ee2ddae6ba64a411b6119a1a696aee054dc", kill_on_drop: false }`
[INFO] [stdout] 68862c3b44a96909f19b8c584b625ee2ddae6ba64a411b6119a1a696aee054dc