[INFO] fetching crate signatory-dalek 0.99.0...
[INFO] checking signatory-dalek-0.99.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate signatory-dalek 0.99.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate signatory-dalek 0.99.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signatory-dalek 0.99.0
[INFO] finished tweaking crates.io crate signatory-dalek 0.99.0
[INFO] tweaked toml for crates.io crate signatory-dalek 0.99.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate signatory-dalek 0.99.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72d34bc5e10237727db6c88a0ff5cec61871e659ac5130e08b806536aa9e9526
[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" "72d34bc5e10237727db6c88a0ff5cec61871e659ac5130e08b806536aa9e9526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72d34bc5e10237727db6c88a0ff5cec61871e659ac5130e08b806536aa9e9526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d34bc5e10237727db6c88a0ff5cec61871e659ac5130e08b806536aa9e9526", kill_on_drop: false }`
[INFO] [stdout] 72d34bc5e10237727db6c88a0ff5cec61871e659ac5130e08b806536aa9e9526
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6909a4963b779bdee2e2ddf8872e81e8ee53cc81fd212704a4de55d00bcfb4f
[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" "b6909a4963b779bdee2e2ddf8872e81e8ee53cc81fd212704a4de55d00bcfb4f", kill_on_drop: false }`
[INFO] [stderr]     Checking signatory-dalek v0.99.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "b6909a4963b779bdee2e2ddf8872e81e8ee53cc81fd212704a4de55d00bcfb4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6909a4963b779bdee2e2ddf8872e81e8ee53cc81fd212704a4de55d00bcfb4f", kill_on_drop: false }`
[INFO] [stdout] b6909a4963b779bdee2e2ddf8872e81e8ee53cc81fd212704a4de55d00bcfb4f