[INFO] fetching crate serde_json 1.0.52...
[INFO] checking serde_json-1.0.52 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate serde_json 1.0.52 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate serde_json 1.0.52 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_json 1.0.52
[INFO] finished tweaking crates.io crate serde_json 1.0.52
[INFO] tweaked toml for crates.io crate serde_json 1.0.52 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2310b54c437556db6ef0be599533ab119f3d1f02d846ccd6620bd23d826f0dc9
[INFO] running `"docker" "start" "-a" "2310b54c437556db6ef0be599533ab119f3d1f02d846ccd6620bd23d826f0dc9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking dissimilar v1.0.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.9
[INFO] [stderr]     Checking libc v0.2.69
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling automod v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_bytes v0.11.4
[INFO] [stderr]     Checking serde_stacker v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.52 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking trybuild v1.0.27
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.63s
[INFO] running `"docker" "inspect" "2310b54c437556db6ef0be599533ab119f3d1f02d846ccd6620bd23d826f0dc9"`
[INFO] running `"docker" "rm" "-f" "2310b54c437556db6ef0be599533ab119f3d1f02d846ccd6620bd23d826f0dc9"`
[INFO] [stdout] 2310b54c437556db6ef0be599533ab119f3d1f02d846ccd6620bd23d826f0dc9