[INFO] fetching crate structural 0.4.1...
[INFO] checking structural-0.4.1 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate structural 0.4.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate structural 0.4.1 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate structural 0.4.1
[INFO] finished tweaking crates.io crate structural 0.4.1
[INFO] tweaked toml for crates.io crate structural 0.4.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 99502628364d227119632d8f951f4514e6d855ec18c6a2ebe93b36ff9225b50a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "99502628364d227119632d8f951f4514e6d855ec18c6a2ebe93b36ff9225b50a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling typed-arena v1.5.0
[INFO] [stderr]    Compiling core_extensions v0.1.16
[INFO] [stderr]    Compiling as_derive_utils v0.8.2
[INFO] [stderr]    Compiling structural_derive v0.4.0
[INFO] [stderr]     Checking structural v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: tests must be run with the "testing" feature
[INFO] [stderr]    --> src/lib.rs:788:1
[INFO] [stderr]     |
[INFO] [stderr] 788 | compile_error! { "tests must be run with the \"testing\" feature" }
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `crate::test_utils`
[INFO] [stderr]    --> src/field/array_impls.rs:323:24
[INFO] [stderr]     |
[INFO] [stderr] 323 |             use crate::test_utils::DecOnDrop;
[INFO] [stderr]     |                        ^^^^^^^^^^ maybe a missing crate `test_utils`?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `structural`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "99502628364d227119632d8f951f4514e6d855ec18c6a2ebe93b36ff9225b50a"`
[INFO] running `"docker" "rm" "-f" "99502628364d227119632d8f951f4514e6d855ec18c6a2ebe93b36ff9225b50a"`
[INFO] [stdout] 99502628364d227119632d8f951f4514e6d855ec18c6a2ebe93b36ff9225b50a