[INFO] fetching crate derive_builder_core 0.10.0-alpha...
[INFO] checking derive_builder_core-0.10.0-alpha against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate derive_builder_core 0.10.0-alpha into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate derive_builder_core 0.10.0-alpha on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derive_builder_core 0.10.0-alpha
[INFO] finished tweaking crates.io crate derive_builder_core 0.10.0-alpha
[INFO] tweaked toml for crates.io crate derive_builder_core 0.10.0-alpha written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ba6caeccb74d02a5bef0b61ee55f4940acf054ccaa6eb351ac21e71b6f8d15d
[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" "4ba6caeccb74d02a5bef0b61ee55f4940acf054ccaa6eb351ac21e71b6f8d15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ba6caeccb74d02a5bef0b61ee55f4940acf054ccaa6eb351ac21e71b6f8d15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ba6caeccb74d02a5bef0b61ee55f4940acf054ccaa6eb351ac21e71b6f8d15d", kill_on_drop: false }`
[INFO] [stdout] 4ba6caeccb74d02a5bef0b61ee55f4940acf054ccaa6eb351ac21e71b6f8d15d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5157f42f6ae7c3c8ab3e2e77fc18a9669e6c0059dfff8ff130a9e9891d48b00
[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" "d5157f42f6ae7c3c8ab3e2e77fc18a9669e6c0059dfff8ff130a9e9891d48b00", kill_on_drop: false }`
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking darling_core v0.12.2
[INFO] [stderr]    Compiling darling_macro v0.12.2
[INFO] [stderr]     Checking darling v0.12.2
[INFO] [stderr]     Checking derive_builder_core v0.10.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.63s
[INFO] running `Command { std: "docker" "inspect" "d5157f42f6ae7c3c8ab3e2e77fc18a9669e6c0059dfff8ff130a9e9891d48b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5157f42f6ae7c3c8ab3e2e77fc18a9669e6c0059dfff8ff130a9e9891d48b00", kill_on_drop: false }`
[INFO] [stdout] d5157f42f6ae7c3c8ab3e2e77fc18a9669e6c0059dfff8ff130a9e9891d48b00