[INFO] fetching crate butterfly 0.1.0...
[INFO] checking butterfly-0.1.0 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate butterfly 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate butterfly 0.1.0 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate butterfly 0.1.0
[INFO] finished tweaking crates.io crate butterfly 0.1.0
[INFO] tweaked toml for crates.io crate butterfly 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] fa1600e868faec655a8f4d427c8a8be4d3c18d932fffee52625469276bab76a2
[INFO] running `Command { std: "docker" "start" "-a" "fa1600e868faec655a8f4d427c8a8be4d3c18d932fffee52625469276bab76a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1600e868faec655a8f4d427c8a8be4d3c18d932fffee52625469276bab76a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1600e868faec655a8f4d427c8a8be4d3c18d932fffee52625469276bab76a2", kill_on_drop: false }`
[INFO] [stdout] fa1600e868faec655a8f4d427c8a8be4d3c18d932fffee52625469276bab76a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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] cbd75c16e280315d6dd1a670f8594fba56eaf0d72ff4a9a21c2c8913abd2aeda
[INFO] running `Command { std: "docker" "start" "-a" "cbd75c16e280315d6dd1a670f8594fba56eaf0d72ff4a9a21c2c8913abd2aeda", kill_on_drop: false }`
[INFO] [stderr]     Checking butterfly v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "cbd75c16e280315d6dd1a670f8594fba56eaf0d72ff4a9a21c2c8913abd2aeda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd75c16e280315d6dd1a670f8594fba56eaf0d72ff4a9a21c2c8913abd2aeda", kill_on_drop: false }`
[INFO] [stdout] cbd75c16e280315d6dd1a670f8594fba56eaf0d72ff4a9a21c2c8913abd2aeda