[INFO] cloning repository https://github.com/robertkottelin/Rust_Blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertkottelin/Rust_Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertkottelin%2FRust_Blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertkottelin%2FRust_Blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89ee013d59af98a962ad64d55eebe2aa10a864ab
[INFO] checking robertkottelin/Rust_Blockchain against master#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertkottelin%2FRust_Blockchain" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertkottelin/Rust_Blockchain on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robertkottelin/Rust_Blockchain
[INFO] finished tweaking git repo https://github.com/robertkottelin/Rust_Blockchain
[INFO] tweaked toml for git repo https://github.com/robertkottelin/Rust_Blockchain written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/robertkottelin/Rust_Blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha2 v0.10.1
[INFO] [stderr]   Downloaded serde_json v1.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 763fb3a7867f4c72c4a292b755641c70401f0631c7984cb3a3823f641af066ac
[INFO] running `Command { std: "docker" "start" "-a" "763fb3a7867f4c72c4a292b755641c70401f0631c7984cb3a3823f641af066ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "763fb3a7867f4c72c4a292b755641c70401f0631c7984cb3a3823f641af066ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763fb3a7867f4c72c4a292b755641c70401f0631c7984cb3a3823f641af066ac", kill_on_drop: false }`
[INFO] [stdout] 763fb3a7867f4c72c4a292b755641c70401f0631c7984cb3a3823f641af066ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 936f9ad92ab5ed07fafaf5a2527ad7ef94ac6ca27ac71205efd17a601cc8c8de
[INFO] running `Command { std: "docker" "start" "-a" "936f9ad92ab5ed07fafaf5a2527ad7ef94ac6ca27ac71205efd17a601cc8c8de", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.68s
[INFO] running `Command { std: "docker" "inspect" "936f9ad92ab5ed07fafaf5a2527ad7ef94ac6ca27ac71205efd17a601cc8c8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "936f9ad92ab5ed07fafaf5a2527ad7ef94ac6ca27ac71205efd17a601cc8c8de", kill_on_drop: false }`
[INFO] [stdout] 936f9ad92ab5ed07fafaf5a2527ad7ef94ac6ca27ac71205efd17a601cc8c8de