[INFO] fetching crate next-gen_proc-macro 0.0.10...
[INFO] checking next-gen_proc-macro-0.0.10 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate next-gen_proc-macro 0.0.10 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate next-gen_proc-macro 0.0.10 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate next-gen_proc-macro 0.0.10
[INFO] finished tweaking crates.io crate next-gen_proc-macro 0.0.10
[INFO] tweaked toml for crates.io crate next-gen_proc-macro 0.0.10 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3e80eda291b649e58f472441bde166c3dfa197574a0aa3d42b293a074649d1f
[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" "b3e80eda291b649e58f472441bde166c3dfa197574a0aa3d42b293a074649d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3e80eda291b649e58f472441bde166c3dfa197574a0aa3d42b293a074649d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e80eda291b649e58f472441bde166c3dfa197574a0aa3d42b293a074649d1f", kill_on_drop: false }`
[INFO] [stdout] b3e80eda291b649e58f472441bde166c3dfa197574a0aa3d42b293a074649d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6578c1b4f856a013947bb174e10be42a551aee5f5e9f48bc84125fae81b259fa
[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" "6578c1b4f856a013947bb174e10be42a551aee5f5e9f48bc84125fae81b259fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]    Compiling fstrings-proc-macro v0.2.3
[INFO] [stderr]     Checking fstrings v0.2.3
[INFO] [stderr]     Checking next-gen_proc-macro v0.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.36s
[INFO] running `Command { std: "docker" "inspect" "6578c1b4f856a013947bb174e10be42a551aee5f5e9f48bc84125fae81b259fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6578c1b4f856a013947bb174e10be42a551aee5f5e9f48bc84125fae81b259fa", kill_on_drop: false }`
[INFO] [stdout] 6578c1b4f856a013947bb174e10be42a551aee5f5e9f48bc84125fae81b259fa