[INFO] crate serde-json-core 0.1.0 is already in cache
[INFO] checking serde-json-core-0.1.0 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate serde-json-core 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serde-json-core 0.1.0 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-json-core 0.1.0
[INFO] finished tweaking crates.io crate serde-json-core 0.1.0
[INFO] tweaked toml for crates.io crate serde-json-core 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f852b888441b4eb40dccc1dad8b07bc93fa11e2364f19559e62573b501fff802
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f852b888441b4eb40dccc1dad8b07bc93fa11e2364f19559e62573b501fff802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f852b888441b4eb40dccc1dad8b07bc93fa11e2364f19559e62573b501fff802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f852b888441b4eb40dccc1dad8b07bc93fa11e2364f19559e62573b501fff802", kill_on_drop: false }`
[INFO] [stdout] f852b888441b4eb40dccc1dad8b07bc93fa11e2364f19559e62573b501fff802
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f236e12b192dad8f94fbf0788a80c8d97e048dbedf79b230a76a7acdea2f7373
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f236e12b192dad8f94fbf0788a80c8d97e048dbedf79b230a76a7acdea2f7373", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking serde-json-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.45s
[INFO] running `Command { std: "docker" "inspect" "f236e12b192dad8f94fbf0788a80c8d97e048dbedf79b230a76a7acdea2f7373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f236e12b192dad8f94fbf0788a80c8d97e048dbedf79b230a76a7acdea2f7373", kill_on_drop: false }`
[INFO] [stdout] f236e12b192dad8f94fbf0788a80c8d97e048dbedf79b230a76a7acdea2f7373