[INFO] fetching crate netcorehost 0.1.0...
[INFO] checking netcorehost-0.1.0 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate netcorehost 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate netcorehost 0.1.0 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netcorehost 0.1.0
[INFO] finished tweaking crates.io crate netcorehost 0.1.0
[INFO] tweaked toml for crates.io crate netcorehost 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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" "+195ad4830e11a544391abe296b146450dea8411b" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a30d768096a6d3a03935e0c3c6aaded28556a7114bd862c167a631b7c01654e
[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" "4a30d768096a6d3a03935e0c3c6aaded28556a7114bd862c167a631b7c01654e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a30d768096a6d3a03935e0c3c6aaded28556a7114bd862c167a631b7c01654e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a30d768096a6d3a03935e0c3c6aaded28556a7114bd862c167a631b7c01654e", kill_on_drop: false }`
[INFO] [stdout] 4a30d768096a6d3a03935e0c3c6aaded28556a7114bd862c167a631b7c01654e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d70a5cfe4fe80fae76e90417a2ee796548ee3f6cc17bc240fb5831a16dacd51
[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" "2d70a5cfe4fe80fae76e90417a2ee796548ee3f6cc17bc240fb5831a16dacd51", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling netcorehost v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking path-dedot v3.0.8
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking path-absolutize v3.0.7
[INFO] [stderr]    Compiling dlopen_derive v0.1.4
[INFO] [stderr]     Checking dlopen v0.1.8
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.74s
[INFO] running `Command { std: "docker" "inspect" "2d70a5cfe4fe80fae76e90417a2ee796548ee3f6cc17bc240fb5831a16dacd51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d70a5cfe4fe80fae76e90417a2ee796548ee3f6cc17bc240fb5831a16dacd51", kill_on_drop: false }`
[INFO] [stdout] 2d70a5cfe4fe80fae76e90417a2ee796548ee3f6cc17bc240fb5831a16dacd51