[INFO] fetching crate darling_macro 0.12.3...
[INFO] checking darling_macro-0.12.3 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate darling_macro 0.12.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate darling_macro 0.12.3 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darling_macro 0.12.3
[INFO] finished tweaking crates.io crate darling_macro 0.12.3
[INFO] tweaked toml for crates.io crate darling_macro 0.12.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_core v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", 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] 8c6dcd905b997aaeb4d914e84bdf6d4b6228d6f5e59145c0ba6cc1d15eeec0be
[INFO] running `Command { std: "docker" "start" "-a" "8c6dcd905b997aaeb4d914e84bdf6d4b6228d6f5e59145c0ba6cc1d15eeec0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c6dcd905b997aaeb4d914e84bdf6d4b6228d6f5e59145c0ba6cc1d15eeec0be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c6dcd905b997aaeb4d914e84bdf6d4b6228d6f5e59145c0ba6cc1d15eeec0be", kill_on_drop: false }`
[INFO] [stdout] 8c6dcd905b997aaeb4d914e84bdf6d4b6228d6f5e59145c0ba6cc1d15eeec0be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] c60f821d44518b3edd70efbad2522ec36ea25e2960989db5cb005b9fb27fb481
[INFO] running `Command { std: "docker" "start" "-a" "c60f821d44518b3edd70efbad2522ec36ea25e2960989db5cb005b9fb27fb481", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking darling_core v0.12.3
[INFO] [stderr]     Checking darling_macro v0.12.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.39s
[INFO] running `Command { std: "docker" "inspect" "c60f821d44518b3edd70efbad2522ec36ea25e2960989db5cb005b9fb27fb481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60f821d44518b3edd70efbad2522ec36ea25e2960989db5cb005b9fb27fb481", kill_on_drop: false }`
[INFO] [stdout] c60f821d44518b3edd70efbad2522ec36ea25e2960989db5cb005b9fb27fb481