[INFO] fetching crate darling_macro 0.10.2...
[INFO] checking darling_macro-0.10.2 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate darling_macro 0.10.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate darling_macro 0.10.2 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darling_macro 0.10.2
[INFO] finished tweaking crates.io crate darling_macro 0.10.2
[INFO] tweaked toml for crates.io crate darling_macro 0.10.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4878daa829200aeba2b52f720f2f0337d5fdc3ebfbc23d5122db851e7c06557b
[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" "4878daa829200aeba2b52f720f2f0337d5fdc3ebfbc23d5122db851e7c06557b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4878daa829200aeba2b52f720f2f0337d5fdc3ebfbc23d5122db851e7c06557b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4878daa829200aeba2b52f720f2f0337d5fdc3ebfbc23d5122db851e7c06557b", kill_on_drop: false }`
[INFO] [stdout] 4878daa829200aeba2b52f720f2f0337d5fdc3ebfbc23d5122db851e7c06557b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f9e1ffbaff6cea15d4a8e5b755de9a66c745ceb46175039e29f874a2cb0c23d3
[INFO] running `Command { std: "docker" "start" "-a" "f9e1ffbaff6cea15d4a8e5b755de9a66c745ceb46175039e29f874a2cb0c23d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking darling_core v0.10.2
[INFO] [stderr]     Checking darling_macro v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `Command { std: "docker" "inspect" "f9e1ffbaff6cea15d4a8e5b755de9a66c745ceb46175039e29f874a2cb0c23d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e1ffbaff6cea15d4a8e5b755de9a66c745ceb46175039e29f874a2cb0c23d3", kill_on_drop: false }`
[INFO] [stdout] f9e1ffbaff6cea15d4a8e5b755de9a66c745ceb46175039e29f874a2cb0c23d3