[INFO] crate serializers 0.2.3 is already in cache
[INFO] checking serializers-0.2.3 against master#450abe80f193ccefbfcd48214d70520f2d507f0e for pr-73084
[INFO] extracting crate serializers 0.2.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate serializers 0.2.3 on toolchain 450abe80f193ccefbfcd48214d70520f2d507f0e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serializers 0.2.3
[INFO] finished tweaking crates.io crate serializers 0.2.3
[INFO] tweaked toml for crates.io crate serializers 0.2.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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] d28f9bba9ab56f6c82a715df0d5b6a4040e61d54a6cb3654848398c969ed03b8
[INFO] running `"docker" "start" "-a" "d28f9bba9ab56f6c82a715df0d5b6a4040e61d54a6cb3654848398c969ed03b8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.54
[INFO] [stderr]     Checking version-sync v0.5.0
[INFO] [stderr]     Checking serializers v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.32s
[INFO] running `"docker" "inspect" "d28f9bba9ab56f6c82a715df0d5b6a4040e61d54a6cb3654848398c969ed03b8"`
[INFO] running `"docker" "rm" "-f" "d28f9bba9ab56f6c82a715df0d5b6a4040e61d54a6cb3654848398c969ed03b8"`
[INFO] [stdout] d28f9bba9ab56f6c82a715df0d5b6a4040e61d54a6cb3654848398c969ed03b8