[INFO] fetching crate epoll-rs 0.2.1...
[INFO] checking epoll-rs-0.2.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate epoll-rs 0.2.1 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate epoll-rs 0.2.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate epoll-rs 0.2.1
[INFO] finished tweaking crates.io crate epoll-rs 0.2.1
[INFO] tweaked toml for crates.io crate epoll-rs 0.2.1 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate crates.io crate epoll-rs 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b75099da2230b9967d41163f5013edf9d786e7fb88a0118b05c21667bfdaabb5
[INFO] running `Command { std: "docker" "start" "-a" "b75099da2230b9967d41163f5013edf9d786e7fb88a0118b05c21667bfdaabb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b75099da2230b9967d41163f5013edf9d786e7fb88a0118b05c21667bfdaabb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75099da2230b9967d41163f5013edf9d786e7fb88a0118b05c21667bfdaabb5", kill_on_drop: false }`
[INFO] [stdout] b75099da2230b9967d41163f5013edf9d786e7fb88a0118b05c21667bfdaabb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 427a8633b6c8363392ee070015c84f56911949525c230f21f4d5cc0607128d37
[INFO] running `Command { std: "docker" "start" "-a" "427a8633b6c8363392ee070015c84f56911949525c230f21f4d5cc0607128d37", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking epoll-rs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.45s
[INFO] running `Command { std: "docker" "inspect" "427a8633b6c8363392ee070015c84f56911949525c230f21f4d5cc0607128d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427a8633b6c8363392ee070015c84f56911949525c230f21f4d5cc0607128d37", kill_on_drop: false }`
[INFO] [stdout] 427a8633b6c8363392ee070015c84f56911949525c230f21f4d5cc0607128d37
