[INFO] fetching crate dominator_helpers 0.3.5...
[INFO] checking dominator_helpers-0.3.5 against beta for pr-78714
[INFO] extracting crate dominator_helpers 0.3.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dominator_helpers 0.3.5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dominator_helpers 0.3.5
[INFO] finished tweaking crates.io crate dominator_helpers 0.3.5
[INFO] tweaked toml for crates.io crate dominator_helpers 0.3.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 297472c44f51f67c40032787de66ba5f8cf640229cbc248538060f12c81d898f
[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" "297472c44f51f67c40032787de66ba5f8cf640229cbc248538060f12c81d898f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "297472c44f51f67c40032787de66ba5f8cf640229cbc248538060f12c81d898f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "297472c44f51f67c40032787de66ba5f8cf640229cbc248538060f12c81d898f", kill_on_drop: false }`
[INFO] [stdout] 297472c44f51f67c40032787de66ba5f8cf640229cbc248538060f12c81d898f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 30f303cf93ff96fc81b25a93dfe2c5f4e0c03c6543bfce0ac62e8ac76396adc7
[INFO] running `Command { std: "docker" "start" "-a" "30f303cf93ff96fc81b25a93dfe2c5f4e0c03c6543bfce0ac62e8ac76396adc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.68
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.68
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking js-sys v0.3.45
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures-signals v0.3.15
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.18
[INFO] [stderr]     Checking dominator_helpers v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.05s
[INFO] running `Command { std: "docker" "inspect" "30f303cf93ff96fc81b25a93dfe2c5f4e0c03c6543bfce0ac62e8ac76396adc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f303cf93ff96fc81b25a93dfe2c5f4e0c03c6543bfce0ac62e8ac76396adc7", kill_on_drop: false }`
[INFO] [stdout] 30f303cf93ff96fc81b25a93dfe2c5f4e0c03c6543bfce0ac62e8ac76396adc7