[INFO] cloning repository sisou/nimiq-rust-miner
[INFO] running `"git" "clone" "--bare" "git://github.com/sisou/nimiq-rust-miner.git" "work/cache/sources/gh/sisou/nimiq-rust-miner"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/sisou/nimiq-rust-miner'...
[INFO] running `"git" "clone" "work/cache/sources/gh/sisou/nimiq-rust-miner" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/sisou/nimiq-rust-miner"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/sisou/nimiq-rust-miner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sisou/nimiq-rust-miner" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/sisou/nimiq-rust-miner"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/sisou/nimiq-rust-miner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aa091a492dc0ff43b4e7a8624ae2644487bb3ede
[INFO] sha for GitHub repo sisou/nimiq-rust-miner: aa091a492dc0ff43b4e7a8624ae2644487bb3ede
[INFO] validating manifest of sisou/nimiq-rust-miner on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sisou/nimiq-rust-miner on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sisou/nimiq-rust-miner
[INFO] finished frobbing sisou/nimiq-rust-miner
[INFO] frobbed toml for sisou/nimiq-rust-miner written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/sisou/nimiq-rust-miner/Cargo.toml
[INFO] started frobbing sisou/nimiq-rust-miner
[INFO] finished frobbing sisou/nimiq-rust-miner
[INFO] frobbed toml for sisou/nimiq-rust-miner written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/sisou/nimiq-rust-miner/Cargo.toml
[INFO] crate sisou/nimiq-rust-miner already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-argon2 v0.3.0
[INFO] [stderr]   Downloaded u256 v0.1.0
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sisou/nimiq-rust-miner against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/sisou/nimiq-rust-miner:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c19402a6ed69419d9fe8dfabb454460ce2d7c082a57bd0ea6bb4a32ceb9ae45f
[INFO] running `"docker" "start" "-a" "c19402a6ed69419d9fe8dfabb454460ce2d7c082a57bd0ea6bb4a32ceb9ae45f"`
[INFO] [stderr]     Checking serde v1.0.35
[INFO] [stderr]     Checking u256 v0.1.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking rust-argon2 v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking flame v0.2.2
[INFO] [stderr]     Checking rust_miner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `argon2` is imported redundantly
[INFO] [stderr]   --> src/main.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 1  | extern crate argon2;
[INFO] [stderr]    | -------------------- the item `argon2` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 37 |     use argon2::{self, Config, ThreadMode, Variant, Version};
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `argon2` is imported redundantly
[INFO] [stderr]   --> src/main.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 1  | extern crate argon2;
[INFO] [stderr]    | -------------------- the item `argon2` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 37 |     use argon2::{self, Config, ThreadMode, Variant, Version};
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.46s
[INFO] running `"docker" "inspect" "c19402a6ed69419d9fe8dfabb454460ce2d7c082a57bd0ea6bb4a32ceb9ae45f"`
[INFO] running `"docker" "rm" "-f" "c19402a6ed69419d9fe8dfabb454460ce2d7c082a57bd0ea6bb4a32ceb9ae45f"`
[INFO] [stdout] c19402a6ed69419d9fe8dfabb454460ce2d7c082a57bd0ea6bb4a32ceb9ae45f