[INFO] fetching crate mirrord-protocol 0.2.0...
[INFO] testing mirrord-protocol-0.2.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate mirrord-protocol 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mirrord-protocol 0.2.0
[INFO] finished tweaking crates.io crate mirrord-protocol 0.2.0
[INFO] tweaked toml for crates.io crate mirrord-protocol 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mirrord-protocol 0.2.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 47 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cc7767f9c5774afe79a7558b81099418c2c86d2035cdb6c5a35fcf0ce579b6b
[INFO] running `Command { std: "docker" "start" "-a" "6cc7767f9c5774afe79a7558b81099418c2c86d2035cdb6c5a35fcf0ce579b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cc7767f9c5774afe79a7558b81099418c2c86d2035cdb6c5a35fcf0ce579b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc7767f9c5774afe79a7558b81099418c2c86d2035cdb6c5a35fcf0ce579b6b", kill_on_drop: false }`
[INFO] [stdout] 6cc7767f9c5774afe79a7558b81099418c2c86d2035cdb6c5a35fcf0ce579b6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b7a07302d4db4fa8eea088ee6c3334902cef85d68e6f02de98cdd695dabe5a3
[INFO] running `Command { std: "docker" "start" "-a" "0b7a07302d4db4fa8eea088ee6c3334902cef85d68e6f02de98cdd695dabe5a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling actix-codec v0.5.2
[INFO] [stderr]    Compiling mirrord-protocol v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0533]: expected unit struct, unit variant or constant, found struct variant `DecodeError::UnexpectedEnd`
[INFO] [stdout]   --> src/codec.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             Err(DecodeError::UnexpectedEnd) => Ok(None),
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ not a unit struct, unit variant or constant
[INFO] [stdout]    |
[INFO] [stdout] help: the struct variant's field is being ignored
[INFO] [stdout]    |
[INFO] [stdout] 77 |             Err(DecodeError::UnexpectedEnd { additional: _ }) => Ok(None),
[INFO] [stdout]    |                                            +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0533]: expected unit struct, unit variant or constant, found struct variant `DecodeError::UnexpectedEnd`
[INFO] [stdout]    --> src/codec.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |             Err(DecodeError::UnexpectedEnd) => Ok(None),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ not a unit struct, unit variant or constant
[INFO] [stdout]     |
[INFO] [stdout] help: the struct variant's field is being ignored
[INFO] [stdout]     |
[INFO] [stdout] 128 |             Err(DecodeError::UnexpectedEnd { additional: _ }) => Ok(None),
[INFO] [stdout]     |                                            +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0533`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mirrord-protocol` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0b7a07302d4db4fa8eea088ee6c3334902cef85d68e6f02de98cdd695dabe5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7a07302d4db4fa8eea088ee6c3334902cef85d68e6f02de98cdd695dabe5a3", kill_on_drop: false }`
[INFO] [stdout] 0b7a07302d4db4fa8eea088ee6c3334902cef85d68e6f02de98cdd695dabe5a3