[INFO] updating cached repository mahabubulhasan/rust-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mahabubulhasan/rust-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mahabubulhasan/rust-practice" "work/ex/beta-1.37-6/sources/1.36.0/gh/mahabubulhasan/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mahabubulhasan/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mahabubulhasan/rust-practice" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ebaa6c3f0231e457d754a4f1988d3a806a0e541
[INFO] sha for GitHub repo mahabubulhasan/rust-practice: 2ebaa6c3f0231e457d754a4f1988d3a806a0e541
[INFO] validating manifest of mahabubulhasan/rust-practice on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mahabubulhasan/rust-practice on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mahabubulhasan/rust-practice
[INFO] finished frobbing mahabubulhasan/rust-practice
[INFO] frobbed toml for mahabubulhasan/rust-practice written to work/ex/beta-1.37-6/sources/1.36.0/gh/mahabubulhasan/rust-practice/Cargo.toml
[INFO] started frobbing mahabubulhasan/rust-practice
[INFO] finished frobbing mahabubulhasan/rust-practice
[INFO] frobbed toml for mahabubulhasan/rust-practice written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice/Cargo.toml
[INFO] crate mahabubulhasan/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mahabubulhasan/rust-practice against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7ea52d25c439a545463084abace0653774e7c8cea45c1970d647d00e732421e5
[INFO] running `"docker" "start" "-a" "7ea52d25c439a545463084abace0653774e7c8cea45c1970d647d00e732421e5"`
[INFO] [stderr]    Compiling patterns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "7ea52d25c439a545463084abace0653774e7c8cea45c1970d647d00e732421e5"`
[INFO] running `"docker" "rm" "-f" "7ea52d25c439a545463084abace0653774e7c8cea45c1970d647d00e732421e5"`
[INFO] [stdout] 7ea52d25c439a545463084abace0653774e7c8cea45c1970d647d00e732421e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d49d59a32090d1b0869d4bc6628fff276699a68052096e3f95997c10bc5bb043
[INFO] running `"docker" "start" "-a" "d49d59a32090d1b0869d4bc6628fff276699a68052096e3f95997c10bc5bb043"`
[INFO] [stderr]    Compiling patterns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "d49d59a32090d1b0869d4bc6628fff276699a68052096e3f95997c10bc5bb043"`
[INFO] running `"docker" "rm" "-f" "d49d59a32090d1b0869d4bc6628fff276699a68052096e3f95997c10bc5bb043"`
[INFO] [stdout] d49d59a32090d1b0869d4bc6628fff276699a68052096e3f95997c10bc5bb043
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mahabubulhasan/rust-practice:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 57c94cd0cf0c4fe3101443d64ac5de87251eec102b4814d31d58046b26d5865d
[INFO] running `"docker" "start" "-a" "57c94cd0cf0c4fe3101443d64ac5de87251eec102b4814d31d58046b26d5865d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/patterns-16f8bb2ec861e166
[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" "57c94cd0cf0c4fe3101443d64ac5de87251eec102b4814d31d58046b26d5865d"`
[INFO] running `"docker" "rm" "-f" "57c94cd0cf0c4fe3101443d64ac5de87251eec102b4814d31d58046b26d5865d"`
[INFO] [stdout] 57c94cd0cf0c4fe3101443d64ac5de87251eec102b4814d31d58046b26d5865d