[INFO] fetching crate serde_derive 1.0.106...
[INFO] checking serde_derive-1.0.106 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate serde_derive 1.0.106 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde_derive 1.0.106 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_derive 1.0.106
[INFO] finished tweaking crates.io crate serde_derive 1.0.106
[INFO] tweaked toml for crates.io crate serde_derive 1.0.106 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] 8b4fd22bb8dabc65a4affe31493b34c7217855a8020bf0d6827da7c36acc9963
[INFO] running `"docker" "start" "-a" "8b4fd22bb8dabc65a4affe31493b34c7217855a8020bf0d6827da7c36acc9963"`
[INFO] [stderr]     Checking syn v1.0.17
[INFO] [stderr]     Checking serde_derive v1.0.106 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `"docker" "inspect" "8b4fd22bb8dabc65a4affe31493b34c7217855a8020bf0d6827da7c36acc9963"`
[INFO] running `"docker" "rm" "-f" "8b4fd22bb8dabc65a4affe31493b34c7217855a8020bf0d6827da7c36acc9963"`
[INFO] [stdout] 8b4fd22bb8dabc65a4affe31493b34c7217855a8020bf0d6827da7c36acc9963