[INFO] fetching crate nature_demo_executor 0.7.0...
[INFO] testing nature_demo_executor-0.7.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate nature_demo_executor 0.7.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nature_demo_executor 0.7.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nature_demo_executor 0.7.0
[INFO] finished tweaking crates.io crate nature_demo_executor 0.7.0
[INFO] tweaked toml for crates.io crate nature_demo_executor 0.7.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e46940a4161e5bd0457e6ff8854b9cc2b37fe641b9049ada29b8078a54fbf76b
[INFO] running `"docker" "start" "-a" "e46940a4161e5bd0457e6ff8854b9cc2b37fe641b9049ada29b8078a54fbf76b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling copyless v0.1.5
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling base64 v0.12.1
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling fern v0.6.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.4
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling r2d2 v0.8.8
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling actix-codec v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.19
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]    Compiling actix-macros v0.1.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.33
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling pin-project v0.4.19
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling actix-threadpool v0.3.2
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling actix-service v1.0.5
[INFO] [stderr]    Compiling actix-rt v1.1.1
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-utils v1.0.6
[INFO] [stderr]    Compiling trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]    Compiling hyper v0.13.6
[INFO] [stderr]    Compiling actix-connect v1.0.2
[INFO] [stderr]    Compiling actix-http v1.0.1
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.6
[INFO] [stderr]    Compiling actix v0.9.0
[INFO] [stderr]    Compiling nature_common v0.7.0
[INFO] [stderr]    Compiling nature_demo_common v0.7.0
[INFO] [stderr]    Compiling nature_demo_executor v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stderr]   --> src/score.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[derive(Deserialize, Serialize, Debug, Default)]
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find derive macro `Serialize` in this scope
[INFO] [stderr]   --> src/score.rs:27:23
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[derive(Deserialize, Serialize, Debug, Default)]
[INFO] [stderr]    |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `score::KV: serde::Deserialize<'_>` is not satisfied
[INFO] [stderr]     --> src/score.rs:11:18
[INFO] [stderr]      |
[INFO] [stderr] 11   |         let kv = serde_json::from_str::<Vec<KV>>(&input.content);
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `serde::Deserialize<'_>` is not implemented for `score::KV`
[INFO] [stderr]      | 
[INFO] [stderr]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.53/src/de.rs:2397:8
[INFO] [stderr]      |
[INFO] [stderr] 2397 |     T: de::Deserialize<'a>,
[INFO] [stderr]      |        ------------------- required by this bound in `serde_json::from_str`
[INFO] [stderr]      |
[INFO] [stderr]      = note: required because of the requirements on the impl of `serde::Deserialize<'_>` for `std::vec::Vec<score::KV>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `nature_demo_executor`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e46940a4161e5bd0457e6ff8854b9cc2b37fe641b9049ada29b8078a54fbf76b"`
[INFO] running `"docker" "rm" "-f" "e46940a4161e5bd0457e6ff8854b9cc2b37fe641b9049ada29b8078a54fbf76b"`
[INFO] [stdout] e46940a4161e5bd0457e6ff8854b9cc2b37fe641b9049ada29b8078a54fbf76b