[INFO] fetching crate prophet 0.4.2... [INFO] checking prophet-0.4.2 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331 [INFO] extracting crate prophet 0.4.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate prophet 0.4.2 on toolchain 914adf04af1c1a984707f778da3d04590c03d144 [INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate prophet 0.4.2 [INFO] finished tweaking crates.io crate prophet 0.4.2 [INFO] tweaked toml for crates.io crate prophet 0.4.2 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4a139c6cf8853bac1ce2658a9610153246c42e71903b227e2524e150e832d290 [INFO] running `"docker" "start" "-a" "4a139c6cf8853bac1ce2658a9610153246c42e71903b227e2524e150e832d290"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling ndarray v0.10.14 [INFO] [stderr] Compiling syn v1.0.23 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking ndarray-rand v0.6.1 [INFO] [stderr] Checking prophet v0.4.2 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used [INFO] [stderr] --> src/neural_net.rs:418:4 [INFO] [stderr] | [INFO] [stderr] 418 | layer.calculate_output_gradients(expected.view()).to_owned(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: cloning is often expensive and is not expected to have side effects [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.28s [INFO] running `"docker" "inspect" "4a139c6cf8853bac1ce2658a9610153246c42e71903b227e2524e150e832d290"` [INFO] running `"docker" "rm" "-f" "4a139c6cf8853bac1ce2658a9610153246c42e71903b227e2524e150e832d290"` [INFO] [stdout] 4a139c6cf8853bac1ce2658a9610153246c42e71903b227e2524e150e832d290