[INFO] cloning repository https://github.com/Bosswell/block_chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bosswell/block_chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51fbb5ada2e50f043acf24b862edf9091f7bf1ea
[INFO] checking Bosswell/block_chain against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBosswell%2Fblock_chain" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bosswell/block_chain on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Bosswell/block_chain
[INFO] finished tweaking git repo https://github.com/Bosswell/block_chain
[INFO] tweaked toml for git repo https://github.com/Bosswell/block_chain written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Bosswell/block_chain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded digest v0.7.6
[INFO] [stderr]   Downloaded crypto-mac v0.8.0
[INFO] [stderr]   Downloaded subtle v2.3.0
[INFO] [stderr]   Downloaded blake2 v0.9.0
[INFO] [stderr]   Downloaded groestl v0.9.0
[INFO] [stderr]   Downloaded keccak v0.1.0
[INFO] [stderr]   Downloaded ripemd160 v0.7.0
[INFO] [stderr]   Downloaded block-padding v0.2.1
[INFO] [stderr]   Downloaded whirlpool v0.9.0
[INFO] [stderr]   Downloaded sha3 v0.9.1
[INFO] [stderr]   Downloaded crypto-hashes v0.9.0
[INFO] [stderr]   Downloaded sha2 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ecfc4afdc10f1a607bdc79d4f5f87b49baaebb81fa3a67a7b5314cdccb8dbba
[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" "3ecfc4afdc10f1a607bdc79d4f5f87b49baaebb81fa3a67a7b5314cdccb8dbba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ecfc4afdc10f1a607bdc79d4f5f87b49baaebb81fa3a67a7b5314cdccb8dbba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecfc4afdc10f1a607bdc79d4f5f87b49baaebb81fa3a67a7b5314cdccb8dbba", kill_on_drop: false }`
[INFO] [stdout] 3ecfc4afdc10f1a607bdc79d4f5f87b49baaebb81fa3a67a7b5314cdccb8dbba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 4d1c3225070609fe6599fba52c6c9abf514ab5c00a7c1f6ffd32a7e2ff3fabe3
[INFO] running `Command { std: "docker" "start" "-a" "4d1c3225070609fe6599fba52c6c9abf514ab5c00a7c1f6ffd32a7e2ff3fabe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking ripemd160 v0.7.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking groestl v0.9.0
[INFO] [stderr]     Checking whirlpool v0.9.0
[INFO] [stderr]     Checking crypto-hashes v0.9.0
[INFO] [stderr]     Checking block_chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `Command { std: "docker" "inspect" "4d1c3225070609fe6599fba52c6c9abf514ab5c00a7c1f6ffd32a7e2ff3fabe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d1c3225070609fe6599fba52c6c9abf514ab5c00a7c1f6ffd32a7e2ff3fabe3", kill_on_drop: false }`
[INFO] [stdout] 4d1c3225070609fe6599fba52c6c9abf514ab5c00a7c1f6ffd32a7e2ff3fabe3