[INFO] crate rgb 0.8.17 is already in cache
[INFO] checking rgb-0.8.17 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate rgb 0.8.17 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rgb 0.8.17 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rgb 0.8.17
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rgb 0.8.17
[INFO] tweaked toml for crates.io crate rgb 0.8.17 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate rgb 0.8.17 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "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] 3775654ff0449006c17af9712866fe3cc427b2c090a7cc8ae4241c52cd67582f
[INFO] running `"docker" "start" "-a" "3775654ff0449006c17af9712866fe3cc427b2c090a7cc8ae4241c52cd67582f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking rgb v0.8.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.64s
[INFO] running `"docker" "inspect" "3775654ff0449006c17af9712866fe3cc427b2c090a7cc8ae4241c52cd67582f"`
[INFO] running `"docker" "rm" "-f" "3775654ff0449006c17af9712866fe3cc427b2c090a7cc8ae4241c52cd67582f"`
[INFO] [stdout] 3775654ff0449006c17af9712866fe3cc427b2c090a7cc8ae4241c52cd67582f