[INFO] fetching crate schema-registry-observability 0.1.0...
[INFO] checking schema-registry-observability-0.1.0 against try#70daa2c0d8eed7066b07966f3c0b0b8622bff4e4 for pr-151539
[INFO] extracting crate schema-registry-observability 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate schema-registry-observability 0.1.0
[INFO] finished tweaking crates.io crate schema-registry-observability 0.1.0
[INFO] tweaked toml for crates.io crate schema-registry-observability 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate schema-registry-observability 0.1.0 on toolchain 70daa2c0d8eed7066b07966f3c0b0b8622bff4e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate schema-registry-observability 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c621497fb1e9de495b05016fcc8f75752c0b47cbd8fa52cc804078ed5452cbac
[INFO] running `Command { std: "docker" "start" "-a" "c621497fb1e9de495b05016fcc8f75752c0b47cbd8fa52cc804078ed5452cbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c621497fb1e9de495b05016fcc8f75752c0b47cbd8fa52cc804078ed5452cbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c621497fb1e9de495b05016fcc8f75752c0b47cbd8fa52cc804078ed5452cbac", kill_on_drop: false }`
[INFO] [stdout] c621497fb1e9de495b05016fcc8f75752c0b47cbd8fa52cc804078ed5452cbac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+70daa2c0d8eed7066b07966f3c0b0b8622bff4e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1127785918b5ee9579b76f5eb58d1e5dd44104b6137a801aed6284b29bce885
[INFO] running `Command { std: "docker" "start" "-a" "d1127785918b5ee9579b76f5eb58d1e5dd44104b6137a801aed6284b29bce885", kill_on_drop: false }`
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[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/prost-derive-0.11.9/src/field/scalar.rs:721:51
[INFO] [stdout]     |
[INFO] [stdout] 721 | ...                   let value: i64 = -lit.base10_parse()?;
[INFO] [stdout]     |                                             ^^^^^^^^^^^^ cannot infer type of the type parameter `N` declared on the method `base10_parse`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 721 |                             let value: i64 = -lit.base10_parse::<N>()?;
[INFO] [stdout]     |                                                               +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prost-derive` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d1127785918b5ee9579b76f5eb58d1e5dd44104b6137a801aed6284b29bce885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1127785918b5ee9579b76f5eb58d1e5dd44104b6137a801aed6284b29bce885", kill_on_drop: false }`
[INFO] [stdout] d1127785918b5ee9579b76f5eb58d1e5dd44104b6137a801aed6284b29bce885