[INFO] fetching crate rillrate-system-protocol 0.2.0...
[INFO] checking rillrate-system-protocol-0.2.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate rillrate-system-protocol 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rillrate-system-protocol 0.2.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rillrate-system-protocol 0.2.0
[INFO] finished tweaking crates.io crate rillrate-system-protocol 0.2.0
[INFO] tweaked toml for crates.io crate rillrate-system-protocol 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3ba3d04e804848e7833fc52220d32a57e6ac8e39ae46ccf32d994bf52aef97f
[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" "f3ba3d04e804848e7833fc52220d32a57e6ac8e39ae46ccf32d994bf52aef97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3ba3d04e804848e7833fc52220d32a57e6ac8e39ae46ccf32d994bf52aef97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ba3d04e804848e7833fc52220d32a57e6ac8e39ae46ccf32d994bf52aef97f", kill_on_drop: false }`
[INFO] [stdout] f3ba3d04e804848e7833fc52220d32a57e6ac8e39ae46ccf32d994bf52aef97f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--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] b58c4e5400eded80076100c70f3efafb56943118239c6e9dc6466f364ee08c46
[INFO] running `Command { std: "docker" "start" "-a" "b58c4e5400eded80076100c70f3efafb56943118239c6e9dc6466f364ee08c46", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking metacrate v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]     Checking meio-protocol v0.89.4
[INFO] [stderr]     Checking vectorize v0.1.0
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.2
[INFO] [stderr]     Checking num_enum v0.5.2
[INFO] [stderr]     Checking flexbuffers v2.0.0
[INFO] [stderr]     Checking rill-protocol v0.30.0-alpha.7
[INFO] [stderr]     Checking rillrate-system-protocol v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.62s
[INFO] running `Command { std: "docker" "inspect" "b58c4e5400eded80076100c70f3efafb56943118239c6e9dc6466f364ee08c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58c4e5400eded80076100c70f3efafb56943118239c6e9dc6466f364ee08c46", kill_on_drop: false }`
[INFO] [stdout] b58c4e5400eded80076100c70f3efafb56943118239c6e9dc6466f364ee08c46