[INFO] cloning repository https://github.com/Andrii32/rust-bitcoin-explore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Andrii32/rust-bitcoin-explore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrii32%2Frust-bitcoin-explore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrii32%2Frust-bitcoin-explore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ab80b3c4b171c693c7c2a11ca02ff42f498ff27
[INFO] checking Andrii32/rust-bitcoin-explore against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrii32%2Frust-bitcoin-explore" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Andrii32/rust-bitcoin-explore 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 git repo https://github.com/Andrii32/rust-bitcoin-explore
[INFO] finished tweaking git repo https://github.com/Andrii32/rust-bitcoin-explore
[INFO] tweaked toml for git repo https://github.com/Andrii32/rust-bitcoin-explore written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Andrii32/rust-bitcoin-explore 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 466ff713c3a2c927330910a66417ffd88b92c3fe1b2a4aac9618e99f1bb11702
[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" "466ff713c3a2c927330910a66417ffd88b92c3fe1b2a4aac9618e99f1bb11702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "466ff713c3a2c927330910a66417ffd88b92c3fe1b2a4aac9618e99f1bb11702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466ff713c3a2c927330910a66417ffd88b92c3fe1b2a4aac9618e99f1bb11702", kill_on_drop: false }`
[INFO] [stdout] 466ff713c3a2c927330910a66417ffd88b92c3fe1b2a4aac9618e99f1bb11702
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 928b644802f12feb2a007a2ee1178e3fb52e68571d7061826666bd73b102f65d
[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" "928b644802f12feb2a007a2ee1178e3fb52e68571d7061826666bd73b102f65d", kill_on_drop: false }`
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking ripemd160 v0.8.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rust-base58 v0.0.4
[INFO] [stderr]     Checking rust-bitcoin-explore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | use errors::{Error};
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_hex`
[INFO] [stdout]   --> src/public.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn to_hex(&self) -> String{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_hex`
[INFO] [stdout]   --> src/public.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn to_hex(&self) -> String{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `Command { std: "docker" "inspect" "928b644802f12feb2a007a2ee1178e3fb52e68571d7061826666bd73b102f65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928b644802f12feb2a007a2ee1178e3fb52e68571d7061826666bd73b102f65d", kill_on_drop: false }`
[INFO] [stdout] 928b644802f12feb2a007a2ee1178e3fb52e68571d7061826666bd73b102f65d