[INFO] fetching crate pakr-mio-signalfd 1.0.0...
[INFO] checking pakr-mio-signalfd-1.0.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate pakr-mio-signalfd 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pakr-mio-signalfd 1.0.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pakr-mio-signalfd 1.0.0
[INFO] finished tweaking crates.io crate pakr-mio-signalfd 1.0.0
[INFO] tweaked toml for crates.io crate pakr-mio-signalfd 1.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.7.6
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded ntapi v0.3.6
[INFO] [stderr]   Downloaded pakr-signals v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] 98919a2b6fe43bbb25b40e60c5e4e2656aed0c0e201c963f479e6bee1c28318d
[INFO] running `Command { std: "docker" "start" "-a" "98919a2b6fe43bbb25b40e60c5e4e2656aed0c0e201c963f479e6bee1c28318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98919a2b6fe43bbb25b40e60c5e4e2656aed0c0e201c963f479e6bee1c28318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98919a2b6fe43bbb25b40e60c5e4e2656aed0c0e201c963f479e6bee1c28318d", kill_on_drop: false }`
[INFO] [stdout] 98919a2b6fe43bbb25b40e60c5e4e2656aed0c0e201c963f479e6bee1c28318d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] c16ed9de6e2468cb32efbd29be3232856f2ae4721ed510aabb5d0cb99b6c07c0
[INFO] running `Command { std: "docker" "start" "-a" "c16ed9de6e2468cb32efbd29be3232856f2ae4721ed510aabb5d0cb99b6c07c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking pakr-signals v1.0.0
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking pakr-mio-signalfd v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "c16ed9de6e2468cb32efbd29be3232856f2ae4721ed510aabb5d0cb99b6c07c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c16ed9de6e2468cb32efbd29be3232856f2ae4721ed510aabb5d0cb99b6c07c0", kill_on_drop: false }`
[INFO] [stdout] c16ed9de6e2468cb32efbd29be3232856f2ae4721ed510aabb5d0cb99b6c07c0