[INFO] crate noop_proc_macro 0.2.1 is already in cache
[INFO] checking noop_proc_macro-0.2.1 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate noop_proc_macro 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate noop_proc_macro 0.2.1 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate noop_proc_macro 0.2.1
[INFO] finished tweaking crates.io crate noop_proc_macro 0.2.1
[INFO] tweaked toml for crates.io crate noop_proc_macro 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 08fab8ed9bd92dc0271dc68f8c8ab8c1ac120b05141965903cbc67bf39016992
[INFO] running `"docker" "start" "-a" "08fab8ed9bd92dc0271dc68f8c8ab8c1ac120b05141965903cbc67bf39016992"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling noop_proc_macro v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `a`
[INFO] [stderr]  --> tests/serde.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     a: usize,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "08fab8ed9bd92dc0271dc68f8c8ab8c1ac120b05141965903cbc67bf39016992"`
[INFO] running `"docker" "rm" "-f" "08fab8ed9bd92dc0271dc68f8c8ab8c1ac120b05141965903cbc67bf39016992"`
[INFO] [stdout] 08fab8ed9bd92dc0271dc68f8c8ab8c1ac120b05141965903cbc67bf39016992