[INFO] crate rs-graph 0.17.1 is already in cache
[INFO] checking rs-graph-0.17.1 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate rs-graph 0.17.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rs-graph 0.17.1 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rs-graph 0.17.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rs-graph 0.17.1
[INFO] tweaked toml for crates.io crate rs-graph 0.17.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] f5a3795e8be9e5a3b6f7372b6f27879bc341af9c79c64b639fb77bc97e34e64f
[INFO] running `"docker" "start" "-a" "f5a3795e8be9e5a3b6f7372b6f27879bc341af9c79c64b639fb77bc97e34e64f"`
[INFO] [stderr]    Compiling rs-graph v0.17.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rustop v1.0.4
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/linkedlistgraph.rs:618:74
[INFO] [stderr]     |
[INFO] [stderr] 618 |         for g in [cycle::<LinkedListGraph>(7), peterson(), hypercube(5)].into_iter() {
[INFO] [stderr]     |                                                                          ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/linkedlistgraph.rs:634:74
[INFO] [stderr]     |
[INFO] [stderr] 634 |         for g in [cycle::<LinkedListGraph>(7), peterson(), hypercube(5)].into_iter() {
[INFO] [stderr]     |                                                                          ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `"docker" "inspect" "f5a3795e8be9e5a3b6f7372b6f27879bc341af9c79c64b639fb77bc97e34e64f"`
[INFO] running `"docker" "rm" "-f" "f5a3795e8be9e5a3b6f7372b6f27879bc341af9c79c64b639fb77bc97e34e64f"`
[INFO] [stdout] f5a3795e8be9e5a3b6f7372b6f27879bc341af9c79c64b639fb77bc97e34e64f