[INFO] fetching crate net_ensembles 0.4.0...
[INFO] testing net_ensembles-0.4.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate net_ensembles 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate net_ensembles 0.4.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate net_ensembles 0.4.0
[INFO] finished tweaking crates.io crate net_ensembles 0.4.0
[INFO] tweaked toml for crates.io crate net_ensembles 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d22f5664e0d0165188936cd623602931684cb7cfe3cc7f2c3554b466214b749
[INFO] running `Command { std: "docker" "start" "-a" "3d22f5664e0d0165188936cd623602931684cb7cfe3cc7f2c3554b466214b749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d22f5664e0d0165188936cd623602931684cb7cfe3cc7f2c3554b466214b749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d22f5664e0d0165188936cd623602931684cb7cfe3cc7f2c3554b466214b749", kill_on_drop: false }`
[INFO] [stdout] 3d22f5664e0d0165188936cd623602931684cb7cfe3cc7f2c3554b466214b749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 482abc78a8f27fba35278c1afaec6abd12945767703ff4c7e654ab7666d1f18a
[INFO] running `Command { std: "docker" "start" "-a" "482abc78a8f27fba35278c1afaec6abd12945767703ff4c7e654ab7666d1f18a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling net_ensembles v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: attribute should be applied to a function
[INFO] [stdout]    --> src/sampling/traits.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |                 #[cold]
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 189 |                 return MetropolisState::new(stepsize, steps, m_beta, rng, current_energy, i + 1);
[INFO] [stdout]     |                 -------------------------------------------------------------------------------- not a function
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:277:23
[INFO] [stdout]     |
[INFO] [stdout] 277 | #![deny(missing_docs, warnings)]
[INFO] [stdout]     |                       ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_attributes)]` implied by `#[deny(warnings)]`
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attribute should be applied to a function
[INFO] [stdout]    --> src/sampling/traits.rs:342:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |                 #[cold]
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 343 |                 return MetropolisState::new(stepsize, steps, m_beta, rng, current_energy, i + 1);
[INFO] [stdout]     |                 -------------------------------------------------------------------------------- not a function
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net_ensembles`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "482abc78a8f27fba35278c1afaec6abd12945767703ff4c7e654ab7666d1f18a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482abc78a8f27fba35278c1afaec6abd12945767703ff4c7e654ab7666d1f18a", kill_on_drop: false }`
[INFO] [stdout] 482abc78a8f27fba35278c1afaec6abd12945767703ff4c7e654ab7666d1f18a