[INFO] crate grin-miner 0.4.2 is already in cache
[INFO] extracting crate grin-miner 0.4.2 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/grin-miner/0.4.2
[INFO] extracting crate grin-miner 0.4.2 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/grin-miner/0.4.2
[INFO] validating manifest of grin-miner-0.4.2 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of grin-miner-0.4.2 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing grin-miner-0.4.2
[INFO] finished frobbing grin-miner-0.4.2
[INFO] frobbed toml for grin-miner-0.4.2 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/grin-miner/0.4.2/Cargo.toml
[INFO] started frobbing grin-miner-0.4.2
[INFO] finished frobbing grin-miner-0.4.2
[INFO] frobbed toml for grin-miner-0.4.2 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/grin-miner/0.4.2/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking grin-miner-0.4.2 against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/grin-miner/0.4.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b5a96319904e93109797009976528a3fa0450be24d20d648811f529736c285ad
[INFO] running `"docker" "start" "-a" "b5a96319904e93109797009976528a3fa0450be24d20d648811f529736c285ad"`
[INFO] [stderr]     Checking slog v2.1.1
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling cuckoo_miner v0.4.2
[INFO] [stderr]     Checking grin_miner_plugin v0.4.2
[INFO] [stderr]     Checking enumset v0.3.19
[INFO] [stderr]     Checking cursive v0.9.2
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking grin_miner_util v0.4.2
[INFO] [stderr]     Checking grin_miner_config v0.4.2
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling built v0.2.3
[INFO] [stderr]    Compiling grin-miner v0.4.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.48s
[INFO] running `"docker" "inspect" "b5a96319904e93109797009976528a3fa0450be24d20d648811f529736c285ad"`
[INFO] running `"docker" "rm" "-f" "b5a96319904e93109797009976528a3fa0450be24d20d648811f529736c285ad"`
[INFO] [stdout] b5a96319904e93109797009976528a3fa0450be24d20d648811f529736c285ad