[INFO] fetching crate sp-npos-elections-compact 2.0.0-rc3...
[INFO] checking sp-npos-elections-compact-2.0.0-rc3 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate sp-npos-elections-compact 2.0.0-rc3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate sp-npos-elections-compact 2.0.0-rc3 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-npos-elections-compact 2.0.0-rc3
[INFO] finished tweaking crates.io crate sp-npos-elections-compact 2.0.0-rc3
[INFO] tweaked toml for crates.io crate sp-npos-elections-compact 2.0.0-rc3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4fef1f5b9d01fbd8e2618a479db36cf52011b38b5f0fa832456bb32e7c329c7
[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" "a4fef1f5b9d01fbd8e2618a479db36cf52011b38b5f0fa832456bb32e7c329c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fef1f5b9d01fbd8e2618a479db36cf52011b38b5f0fa832456bb32e7c329c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fef1f5b9d01fbd8e2618a479db36cf52011b38b5f0fa832456bb32e7c329c7", kill_on_drop: false }`
[INFO] [stdout] a4fef1f5b9d01fbd8e2618a479db36cf52011b38b5f0fa832456bb32e7c329c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] 2e6b1b07fe5afc34c6c19009f681e8fa046af8540175b857041f89bc12db3860
[INFO] running `Command { std: "docker" "start" "-a" "2e6b1b07fe5afc34c6c19009f681e8fa046af8540175b857041f89bc12db3860", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking proc-macro2 v1.0.18
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking proc-macro-crate v0.1.4
[INFO] [stderr]     Checking sp-npos-elections-compact v2.0.0-rc3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "2e6b1b07fe5afc34c6c19009f681e8fa046af8540175b857041f89bc12db3860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6b1b07fe5afc34c6c19009f681e8fa046af8540175b857041f89bc12db3860", kill_on_drop: false }`
[INFO] [stdout] 2e6b1b07fe5afc34c6c19009f681e8fa046af8540175b857041f89bc12db3860