[INFO] fetching crate serde_json 1.0.40...
[INFO] checking serde_json-1.0.40 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate serde_json 1.0.40 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate serde_json 1.0.40 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_json 1.0.40
[INFO] finished tweaking crates.io crate serde_json 1.0.40
[INFO] tweaked toml for crates.io crate serde_json 1.0.40 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0aee01e37265149276db1f9b87752ccb549f0cd93b5e973c8deb866896a07217
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "0aee01e37265149276db1f9b87752ccb549f0cd93b5e973c8deb866896a07217"`
[INFO] [stderr]    Compiling psm v0.1.5
[INFO] [stderr]    Compiling stacker v0.1.6
[INFO] [stderr]    Compiling automod v0.1.2
[INFO] [stderr]    Compiling select-rustc v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.40 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking trybuild v1.0.17
[INFO] [stderr]     Checking serde_stacker v0.1.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `"docker" "inspect" "0aee01e37265149276db1f9b87752ccb549f0cd93b5e973c8deb866896a07217"`
[INFO] running `"docker" "rm" "-f" "0aee01e37265149276db1f9b87752ccb549f0cd93b5e973c8deb866896a07217"`
[INFO] [stdout] 0aee01e37265149276db1f9b87752ccb549f0cd93b5e973c8deb866896a07217