[INFO] fetching crate constexpr-macros 0.0.1-alpha1...
[INFO] checking constexpr-macros-0.0.1-alpha1 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate constexpr-macros 0.0.1-alpha1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate constexpr-macros 0.0.1-alpha1 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate constexpr-macros 0.0.1-alpha1
[INFO] finished tweaking crates.io crate constexpr-macros 0.0.1-alpha1
[INFO] tweaked toml for crates.io crate constexpr-macros 0.0.1-alpha1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68d4dd5e644ffe61337457aedb2e37eb1c4806c4ce1d778e0d3ecbc8bd468f42
[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" "68d4dd5e644ffe61337457aedb2e37eb1c4806c4ce1d778e0d3ecbc8bd468f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68d4dd5e644ffe61337457aedb2e37eb1c4806c4ce1d778e0d3ecbc8bd468f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d4dd5e644ffe61337457aedb2e37eb1c4806c4ce1d778e0d3ecbc8bd468f42", kill_on_drop: false }`
[INFO] [stdout] 68d4dd5e644ffe61337457aedb2e37eb1c4806c4ce1d778e0d3ecbc8bd468f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98b93247f3a047cc5a6aa45b42980fd359b42c3b8dedf9d6bf920e47adcf8d7a
[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" "98b93247f3a047cc5a6aa45b42980fd359b42c3b8dedf9d6bf920e47adcf8d7a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking proc-macro-hack v0.4.2
[INFO] [stderr]     Checking constexpr-macros v0.0.1-alpha1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.71s
[INFO] running `Command { std: "docker" "inspect" "98b93247f3a047cc5a6aa45b42980fd359b42c3b8dedf9d6bf920e47adcf8d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b93247f3a047cc5a6aa45b42980fd359b42c3b8dedf9d6bf920e47adcf8d7a", kill_on_drop: false }`
[INFO] [stdout] 98b93247f3a047cc5a6aa45b42980fd359b42c3b8dedf9d6bf920e47adcf8d7a