[INFO] fetching crate build-info-common 0.0.20...
[INFO] checking build-info-common-0.0.20 against beta for pr-78714
[INFO] extracting crate build-info-common 0.0.20 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate build-info-common 0.0.20 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate build-info-common 0.0.20
[INFO] finished tweaking crates.io crate build-info-common 0.0.20
[INFO] tweaked toml for crates.io crate build-info-common 0.0.20 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta" "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] 0a931d6cedebd289d3797d3da7226dc1caea8d9cd789132cb35d4bc176cd33b4
[INFO] running `Command { std: "docker" "start" "-a" "0a931d6cedebd289d3797d3da7226dc1caea8d9cd789132cb35d4bc176cd33b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a931d6cedebd289d3797d3da7226dc1caea8d9cd789132cb35d4bc176cd33b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a931d6cedebd289d3797d3da7226dc1caea8d9cd789132cb35d4bc176cd33b4", kill_on_drop: false }`
[INFO] [stdout] 0a931d6cedebd289d3797d3da7226dc1caea8d9cd789132cb35d4bc176cd33b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta" "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] 23d6b335054cee35106c41c7f4d0ac83ae5879cbc88983cfbc2ebf9290cff721
[INFO] running `Command { std: "docker" "start" "-a" "23d6b335054cee35106c41c7f4d0ac83ae5879cbc88983cfbc2ebf9290cff721", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]     Checking build-info-common v0.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.44s
[INFO] running `Command { std: "docker" "inspect" "23d6b335054cee35106c41c7f4d0ac83ae5879cbc88983cfbc2ebf9290cff721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d6b335054cee35106c41c7f4d0ac83ae5879cbc88983cfbc2ebf9290cff721", kill_on_drop: false }`
[INFO] [stdout] 23d6b335054cee35106c41c7f4d0ac83ae5879cbc88983cfbc2ebf9290cff721