[INFO] fetching crate proc-macro2 1.0.26...
[INFO] checking proc-macro2-1.0.26 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate proc-macro2 1.0.26 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate proc-macro2 1.0.26 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proc-macro2 1.0.26
[INFO] finished tweaking crates.io crate proc-macro2 1.0.26
[INFO] tweaked toml for crates.io crate proc-macro2 1.0.26 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cd7059b441d7ee1dcb2dfbc9b76ad5ec5d24c33f0fa5c0c7028e7ea89d03d20
[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" "5cd7059b441d7ee1dcb2dfbc9b76ad5ec5d24c33f0fa5c0c7028e7ea89d03d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cd7059b441d7ee1dcb2dfbc9b76ad5ec5d24c33f0fa5c0c7028e7ea89d03d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd7059b441d7ee1dcb2dfbc9b76ad5ec5d24c33f0fa5c0c7028e7ea89d03d20", kill_on_drop: false }`
[INFO] [stdout] 5cd7059b441d7ee1dcb2dfbc9b76ad5ec5d24c33f0fa5c0c7028e7ea89d03d20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 1147310c61613068ba42d7beeb192f2d76f08cc269739a9cbb73b117858e7659
[INFO] running `Command { std: "docker" "start" "-a" "1147310c61613068ba42d7beeb192f2d76f08cc269739a9cbb73b117858e7659", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "1147310c61613068ba42d7beeb192f2d76f08cc269739a9cbb73b117858e7659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1147310c61613068ba42d7beeb192f2d76f08cc269739a9cbb73b117858e7659", kill_on_drop: false }`
[INFO] [stdout] 1147310c61613068ba42d7beeb192f2d76f08cc269739a9cbb73b117858e7659