[INFO] fetching crate futures-signals-structs-traits 0.2.0...
[INFO] checking futures-signals-structs-traits-0.2.0 against beta for pr-78714
[INFO] extracting crate futures-signals-structs-traits 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate futures-signals-structs-traits 0.2.0 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 futures-signals-structs-traits 0.2.0
[INFO] finished tweaking crates.io crate futures-signals-structs-traits 0.2.0
[INFO] tweaked toml for crates.io crate futures-signals-structs-traits 0.2.0 written to /workspace/builds/worker-2/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0edf3fc87ae095c7728a3af06e0c08c3979fe88953fc6665752e65d84c0980c4
[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" "0edf3fc87ae095c7728a3af06e0c08c3979fe88953fc6665752e65d84c0980c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0edf3fc87ae095c7728a3af06e0c08c3979fe88953fc6665752e65d84c0980c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0edf3fc87ae095c7728a3af06e0c08c3979fe88953fc6665752e65d84c0980c4", kill_on_drop: false }`
[INFO] [stdout] 0edf3fc87ae095c7728a3af06e0c08c3979fe88953fc6665752e65d84c0980c4
[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" "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] [stdout] d1fa418b17671bc699640c3020e13a052f4831e23cad46ada13d6499b8ab76d5
[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" "d1fa418b17671bc699640c3020e13a052f4831e23cad46ada13d6499b8ab76d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking futures-signals v0.3.15
[INFO] [stderr]     Checking futures-signals-structs-traits v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "d1fa418b17671bc699640c3020e13a052f4831e23cad46ada13d6499b8ab76d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1fa418b17671bc699640c3020e13a052f4831e23cad46ada13d6499b8ab76d5", kill_on_drop: false }`
[INFO] [stdout] d1fa418b17671bc699640c3020e13a052f4831e23cad46ada13d6499b8ab76d5