[INFO] fetching crate serde_derive 1.0.117...
[INFO] checking serde_derive-1.0.117 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate serde_derive 1.0.117 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serde_derive 1.0.117 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_derive 1.0.117
[INFO] finished tweaking crates.io crate serde_derive 1.0.117
[INFO] tweaked toml for crates.io crate serde_derive 1.0.117 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94772a4ee8b3a6cfc063113fb80a795057e35a135bb518ab29e11358af63b2f4
[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" "94772a4ee8b3a6cfc063113fb80a795057e35a135bb518ab29e11358af63b2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94772a4ee8b3a6cfc063113fb80a795057e35a135bb518ab29e11358af63b2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94772a4ee8b3a6cfc063113fb80a795057e35a135bb518ab29e11358af63b2f4", kill_on_drop: false }`
[INFO] [stdout] 94772a4ee8b3a6cfc063113fb80a795057e35a135bb518ab29e11358af63b2f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3427709a9cd58d8d6c6c259d0eb8022fa2b1664b26c72ec41031ee24ff9877c3
[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" "3427709a9cd58d8d6c6c259d0eb8022fa2b1664b26c72ec41031ee24ff9877c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.117 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking syn v1.0.48
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.55s
[INFO] running `Command { std: "docker" "inspect" "3427709a9cd58d8d6c6c259d0eb8022fa2b1664b26c72ec41031ee24ff9877c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3427709a9cd58d8d6c6c259d0eb8022fa2b1664b26c72ec41031ee24ff9877c3", kill_on_drop: false }`
[INFO] [stdout] 3427709a9cd58d8d6c6c259d0eb8022fa2b1664b26c72ec41031ee24ff9877c3