[INFO] updating cached repository frenicth/find_next_sparse
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/frenicth/find_next_sparse
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/frenicth/find_next_sparse" "work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/frenicth/find_next_sparse" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/frenicth/find_next_sparse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/frenicth/find_next_sparse'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5b56e1435b4e64537af674f24c40b103a5a1b7d
[INFO] sha for GitHub repo frenicth/find_next_sparse: a5b56e1435b4e64537af674f24c40b103a5a1b7d
[INFO] validating manifest of frenicth/find_next_sparse 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 frenicth/find_next_sparse 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 frenicth/find_next_sparse
[INFO] finished frobbing frenicth/find_next_sparse
[INFO] frobbed toml for frenicth/find_next_sparse written to work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse/Cargo.toml
[INFO] started frobbing frenicth/find_next_sparse
[INFO] finished frobbing frenicth/find_next_sparse
[INFO] frobbed toml for frenicth/find_next_sparse written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/frenicth/find_next_sparse/Cargo.toml
[INFO] crate frenicth/find_next_sparse 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 frenicth/find_next_sparse against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 223d92993b5ed9684fa8ffddf9f15a2837305a9ab7b069881a9282939c9c5d79
[INFO] running `"docker" "start" "-a" "223d92993b5ed9684fa8ffddf9f15a2837305a9ab7b069881a9282939c9c5d79"`
[INFO] [stderr]    Compiling sparse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "223d92993b5ed9684fa8ffddf9f15a2837305a9ab7b069881a9282939c9c5d79"`
[INFO] running `"docker" "rm" "-f" "223d92993b5ed9684fa8ffddf9f15a2837305a9ab7b069881a9282939c9c5d79"`
[INFO] [stdout] 223d92993b5ed9684fa8ffddf9f15a2837305a9ab7b069881a9282939c9c5d79
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f748f954edc1de60dac134ccb6a62846148fcc2d945870bbd49d3aaa60739ae6
[INFO] running `"docker" "start" "-a" "f748f954edc1de60dac134ccb6a62846148fcc2d945870bbd49d3aaa60739ae6"`
[INFO] [stderr]    Compiling sparse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "f748f954edc1de60dac134ccb6a62846148fcc2d945870bbd49d3aaa60739ae6"`
[INFO] running `"docker" "rm" "-f" "f748f954edc1de60dac134ccb6a62846148fcc2d945870bbd49d3aaa60739ae6"`
[INFO] [stdout] f748f954edc1de60dac134ccb6a62846148fcc2d945870bbd49d3aaa60739ae6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/frenicth/find_next_sparse:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9dc0b9a7ab0b2df3516ef010bb95e176ec55be5d0a8f5edebfae6317b32fc3a3
[INFO] running `"docker" "start" "-a" "9dc0b9a7ab0b2df3516ef010bb95e176ec55be5d0a8f5edebfae6317b32fc3a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/find_next_sparse-5620065cf122501e
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_next_sparse_num_40 ... ok
[INFO] [stdout] test test_next_sparse_num_64 ... ok
[INFO] [stdout] test test_next_sparse_num_8 ... ok
[INFO] [stdout] test test_next_sparse_num_4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests find_next_sparse
[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" "9dc0b9a7ab0b2df3516ef010bb95e176ec55be5d0a8f5edebfae6317b32fc3a3"`
[INFO] running `"docker" "rm" "-f" "9dc0b9a7ab0b2df3516ef010bb95e176ec55be5d0a8f5edebfae6317b32fc3a3"`
[INFO] [stdout] 9dc0b9a7ab0b2df3516ef010bb95e176ec55be5d0a8f5edebfae6317b32fc3a3