[INFO] cloning repository https://github.com/snokaru/blockchain-project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snokaru/blockchain-project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnokaru%2Fblockchain-project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnokaru%2Fblockchain-project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 760d3a423333ad473ecd98b097d3ffed48437196
[INFO] checking snokaru/blockchain-project against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnokaru%2Fblockchain-project" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/snokaru/blockchain-project on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/snokaru/blockchain-project
[INFO] finished tweaking git repo https://github.com/snokaru/blockchain-project
[INFO] tweaked toml for git repo https://github.com/snokaru/blockchain-project written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/snokaru/blockchain-project already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64ct v1.3.3
[INFO] [stderr]   Downloaded ff v0.11.0
[INFO] [stderr]   Downloaded zeroize v1.5.0
[INFO] [stderr]   Downloaded serde_derive v1.0.134
[INFO] [stderr]   Downloaded serde_json v1.0.76
[INFO] [stderr]   Downloaded sha2 v0.10.1
[INFO] [stderr]   Downloaded k256 v0.10.2
[INFO] [stderr]   Downloaded libc v0.2.113
[INFO] [stderr]   Downloaded elliptic-curve v0.11.9
[INFO] [stderr]   Downloaded serde v1.0.134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e1c2bf9b5bc077a4d0a41bed6349ddf0b909d4f1d6150939d36ad5692803d48
[INFO] running `Command { std: "docker" "start" "-a" "1e1c2bf9b5bc077a4d0a41bed6349ddf0b909d4f1d6150939d36ad5692803d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e1c2bf9b5bc077a4d0a41bed6349ddf0b909d4f1d6150939d36ad5692803d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1c2bf9b5bc077a4d0a41bed6349ddf0b909d4f1d6150939d36ad5692803d48", kill_on_drop: false }`
[INFO] [stdout] 1e1c2bf9b5bc077a4d0a41bed6349ddf0b909d4f1d6150939d36ad5692803d48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8588e34beb26ac502539d0e85e854ec857d90a7304d95208f6e1617a4e7dc10
[INFO] running `Command { std: "docker" "start" "-a" "e8588e34beb26ac502539d0e85e854ec857d90a7304d95208f6e1617a4e7dc10", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition2021` has been stabilized in the 1.56 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.134
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.134
[INFO] [stderr]     Checking base64ct v1.3.3
[INFO] [stderr]     Checking const-oid v0.7.1
[INFO] [stderr]     Checking zeroize v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.76
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking pem-rfc7468 v0.3.1
[INFO] [stderr]     Checking der v0.5.1
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking spki v0.5.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking pkcs8 v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking ff v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking group v0.11.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-bigint v0.3.2
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking crypto-common v0.1.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking signature v1.4.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking digest v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking rfc6979 v0.1.0
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking sec1 v0.2.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking elliptic-curve v0.11.9
[INFO] [stderr]     Checking ecdsa v0.13.4
[INFO] [stderr]     Checking k256 v0.10.2
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e8588e34beb26ac502539d0e85e854ec857d90a7304d95208f6e1617a4e7dc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8588e34beb26ac502539d0e85e854ec857d90a7304d95208f6e1617a4e7dc10", kill_on_drop: false }`
[INFO] [stdout] e8588e34beb26ac502539d0e85e854ec857d90a7304d95208f6e1617a4e7dc10