[INFO] updating cached repository skrobchik/rust-15-puzzle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/skrobchik/rust-15-puzzle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/skrobchik/rust-15-puzzle" "work/ex/beta-1.38-1/sources/1.37.0/gh/skrobchik/rust-15-puzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/skrobchik/rust-15-puzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/skrobchik/rust-15-puzzle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 06b3273dc149a5a0842818dfff449cb1ff313c7d
[INFO] sha for GitHub repo skrobchik/rust-15-puzzle: 06b3273dc149a5a0842818dfff449cb1ff313c7d
[INFO] validating manifest of skrobchik/rust-15-puzzle on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of skrobchik/rust-15-puzzle on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing skrobchik/rust-15-puzzle
[INFO] finished frobbing skrobchik/rust-15-puzzle
[INFO] frobbed toml for skrobchik/rust-15-puzzle written to work/ex/beta-1.38-1/sources/1.37.0/gh/skrobchik/rust-15-puzzle/Cargo.toml
[INFO] started frobbing skrobchik/rust-15-puzzle
[INFO] finished frobbing skrobchik/rust-15-puzzle
[INFO] frobbed toml for skrobchik/rust-15-puzzle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle/Cargo.toml
[INFO] crate skrobchik/rust-15-puzzle already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing skrobchik/rust-15-puzzle against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 81a70347583471d942d040382b30488d9424d799dc1354d3693635221cb5f9fa
[INFO] running `"docker" "start" "-a" "81a70347583471d942d040382b30488d9424d799dc1354d3693635221cb5f9fa"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling pathfinding v1.1.12
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]    Compiling rust-15-puzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.48s
[INFO] running `"docker" "inspect" "81a70347583471d942d040382b30488d9424d799dc1354d3693635221cb5f9fa"`
[INFO] running `"docker" "rm" "-f" "81a70347583471d942d040382b30488d9424d799dc1354d3693635221cb5f9fa"`
[INFO] [stdout] 81a70347583471d942d040382b30488d9424d799dc1354d3693635221cb5f9fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9432faed2bcce714e6495ea8353ffb613a316b1364e39aea52956bb046307d2b
[INFO] running `"docker" "start" "-a" "9432faed2bcce714e6495ea8353ffb613a316b1364e39aea52956bb046307d2b"`
[INFO] [stderr]    Compiling rust-15-puzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "9432faed2bcce714e6495ea8353ffb613a316b1364e39aea52956bb046307d2b"`
[INFO] running `"docker" "rm" "-f" "9432faed2bcce714e6495ea8353ffb613a316b1364e39aea52956bb046307d2b"`
[INFO] [stdout] 9432faed2bcce714e6495ea8353ffb613a316b1364e39aea52956bb046307d2b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/skrobchik/rust-15-puzzle:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] aa9ed060f4f2a047a7a22dcddc7f554b7debc77ace8b153a6d4dba9ae9c41aaf
[INFO] running `"docker" "start" "-a" "aa9ed060f4f2a047a7a22dcddc7f554b7debc77ace8b153a6d4dba9ae9c41aaf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_15_puzzle-10db606ccb4b49e4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "aa9ed060f4f2a047a7a22dcddc7f554b7debc77ace8b153a6d4dba9ae9c41aaf"`
[INFO] running `"docker" "rm" "-f" "aa9ed060f4f2a047a7a22dcddc7f554b7debc77ace8b153a6d4dba9ae9c41aaf"`
[INFO] [stdout] aa9ed060f4f2a047a7a22dcddc7f554b7debc77ace8b153a6d4dba9ae9c41aaf