[INFO] cloning repository https://github.com/rand-chain/SeqPoW
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rand-chain/SeqPoW" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cecba92ced2e090e05107b709bbe3866f1006812
[INFO] checking rand-chain/SeqPoW against try#ef8c760c4c3d93b561a5b431502e92f4b4773aca for pr-92472
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rand-chain/SeqPoW on toolchain ef8c760c4c3d93b561a5b431502e92f4b4773aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rand-chain/SeqPoW
[INFO] finished tweaking git repo https://github.com/rand-chain/SeqPoW
[INFO] tweaked toml for git repo https://github.com/rand-chain/SeqPoW written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/rand-chain/SeqPoW already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-63/source/examples/wes19.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v2.33.2
[INFO] [stderr]   Downloaded rug v1.9.0
[INFO] [stderr]   Downloaded ecvrf v0.4.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d28ae78644d5c7a980dbfbbdf7e504bbcea5b4c6518c4fa9143af22a9af89e47
[INFO] running `Command { std: "docker" "start" "-a" "d28ae78644d5c7a980dbfbbdf7e504bbcea5b4c6518c4fa9143af22a9af89e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d28ae78644d5c7a980dbfbbdf7e504bbcea5b4c6518c4fa9143af22a9af89e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d28ae78644d5c7a980dbfbbdf7e504bbcea5b4c6518c4fa9143af22a9af89e47", kill_on_drop: false }`
[INFO] [stdout] d28ae78644d5c7a980dbfbbdf7e504bbcea5b4c6518c4fa9143af22a9af89e47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ef8c760c4c3d93b561a5b431502e92f4b4773aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e9412f28e3e754c5aa85935d858260572f01c632da2acbaf995787f6d5a6474
[INFO] running `Command { std: "docker" "start" "-a" "6e9412f28e3e754c5aa85935d858260572f01c632da2acbaf995787f6d5a6474", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/wes19.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.2.4
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rug v1.9.0
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking az v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking elapsed v0.1.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling generic-array v0.14.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking ecvrf v0.4.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking seq_pow v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused logical operation that must be used
[INFO] [stdout]   --> benches/bench_sloth.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         util::validate_difficulty(&util::h_state(modulus, pubkey, &cur_state), target)
[INFO] [stdout] 41 | |             && util::validate_difficulty(&util::h_state(modulus, pubkey, &cur_state_inv), target);
[INFO] [stdout]    | |_________________________________________________________________________________________________^ the logical operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = util::validate_difficulty(&util::h_state(modulus, pubkey, &cur_state), target)
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 01s
[INFO] running `Command { std: "docker" "inspect" "6e9412f28e3e754c5aa85935d858260572f01c632da2acbaf995787f6d5a6474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9412f28e3e754c5aa85935d858260572f01c632da2acbaf995787f6d5a6474", kill_on_drop: false }`
[INFO] [stdout] 6e9412f28e3e754c5aa85935d858260572f01c632da2acbaf995787f6d5a6474