[INFO] fetching crate blockchain-demo 0.1.0...
[INFO] checking blockchain-demo-0.1.0 against beta for pr-78714
[INFO] extracting crate blockchain-demo 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate blockchain-demo 0.1.0 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 blockchain-demo 0.1.0
[INFO] finished tweaking crates.io crate blockchain-demo 0.1.0
[INFO] tweaked toml for crates.io crate blockchain-demo 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate blockchain-demo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded merkle-cbt v0.2.2
[INFO] [stderr]   Downloaded sled v0.34.3
[INFO] [stderr]   Downloaded bitcoincash-addr v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 0cc073ff06e11a3c078cb1cc878791f4a11e4c199df254511cb3fbd01c0dd7a1
[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" "0cc073ff06e11a3c078cb1cc878791f4a11e4c199df254511cb3fbd01c0dd7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cc073ff06e11a3c078cb1cc878791f4a11e4c199df254511cb3fbd01c0dd7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc073ff06e11a3c078cb1cc878791f4a11e4c199df254511cb3fbd01c0dd7a1", kill_on_drop: false }`
[INFO] [stdout] 0cc073ff06e11a3c078cb1cc878791f4a11e4c199df254511cb3fbd01c0dd7a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] a2e959e6f9c1f8a7661f4e0f7510d63dd30ffc8f35debc9fbce152307114c28a
[INFO] running `Command { std: "docker" "start" "-a" "a2e959e6f9c1f8a7661f4e0f7510d63dd30ffc8f35debc9fbce152307114c28a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking merkle-cbt v0.2.2
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking sled v0.34.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bitcoincash-addr v0.5.2
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking blockchain-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.25s
[INFO] running `Command { std: "docker" "inspect" "a2e959e6f9c1f8a7661f4e0f7510d63dd30ffc8f35debc9fbce152307114c28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e959e6f9c1f8a7661f4e0f7510d63dd30ffc8f35debc9fbce152307114c28a", kill_on_drop: false }`
[INFO] [stdout] a2e959e6f9c1f8a7661f4e0f7510d63dd30ffc8f35debc9fbce152307114c28a