[INFO] cloning repository https://github.com/jrawsthorne/rust-bitcoin-cpu-miner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrawsthorne/rust-bitcoin-cpu-miner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrawsthorne%2Frust-bitcoin-cpu-miner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrawsthorne%2Frust-bitcoin-cpu-miner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e27282ebed6ef5bf7d81f4ceb0f6f09174580e8
[INFO] checking jrawsthorne/rust-bitcoin-cpu-miner against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrawsthorne%2Frust-bitcoin-cpu-miner" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrawsthorne/rust-bitcoin-cpu-miner on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jrawsthorne/rust-bitcoin-cpu-miner
[INFO] finished tweaking git repo https://github.com/jrawsthorne/rust-bitcoin-cpu-miner
[INFO] tweaked toml for git repo https://github.com/jrawsthorne/rust-bitcoin-cpu-miner written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jrawsthorne/rust-bitcoin-cpu-miner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitcoin_hashes v0.7.2
[INFO] [stderr]   Downloaded bech32 v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5e1e57199cf7c6d242dbee7cfc0c4c147c17cab8f4e88417040e49b46fefe0f
[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" "b5e1e57199cf7c6d242dbee7cfc0c4c147c17cab8f4e88417040e49b46fefe0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5e1e57199cf7c6d242dbee7cfc0c4c147c17cab8f4e88417040e49b46fefe0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5e1e57199cf7c6d242dbee7cfc0c4c147c17cab8f4e88417040e49b46fefe0f", kill_on_drop: false }`
[INFO] [stdout] b5e1e57199cf7c6d242dbee7cfc0c4c147c17cab8f4e88417040e49b46fefe0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] dd8d08f92cbee6d6baefc78b8374c5f72573e47bb4dc695fc06b9f0630eb4aad
[INFO] running `Command { std: "docker" "start" "-a" "dd8d08f92cbee6d6baefc78b8374c5f72573e47bb4dc695fc06b9f0630eb4aad", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking bech32 v0.7.1
[INFO] [stderr]     Checking bitcoin_hashes v0.7.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling secp256k1 v0.15.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking bitcoin v0.21.0
[INFO] [stderr]     Checking rust-bitcoin-cpu-miner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.77s
[INFO] running `Command { std: "docker" "inspect" "dd8d08f92cbee6d6baefc78b8374c5f72573e47bb4dc695fc06b9f0630eb4aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8d08f92cbee6d6baefc78b8374c5f72573e47bb4dc695fc06b9f0630eb4aad", kill_on_drop: false }`
[INFO] [stdout] dd8d08f92cbee6d6baefc78b8374c5f72573e47bb4dc695fc06b9f0630eb4aad