[INFO] updating cached repository chupe/rust-simple_programming_problems
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chupe/rust-simple_programming_problems
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chupe/rust-simple_programming_problems" "work/ex/beta-1.38-1/sources/1.37.0/gh/chupe/rust-simple_programming_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chupe/rust-simple_programming_problems'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chupe/rust-simple_programming_problems" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chupe/rust-simple_programming_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chupe/rust-simple_programming_problems'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fc94de93565f1ee535ad0a8e79d336dfa0c54723
[INFO] sha for GitHub repo chupe/rust-simple_programming_problems: fc94de93565f1ee535ad0a8e79d336dfa0c54723
[INFO] validating manifest of chupe/rust-simple_programming_problems 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 chupe/rust-simple_programming_problems 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 chupe/rust-simple_programming_problems
[INFO] finished frobbing chupe/rust-simple_programming_problems
[INFO] frobbed toml for chupe/rust-simple_programming_problems written to work/ex/beta-1.38-1/sources/1.37.0/gh/chupe/rust-simple_programming_problems/Cargo.toml
[INFO] started frobbing chupe/rust-simple_programming_problems
[INFO] finished frobbing chupe/rust-simple_programming_problems
[INFO] frobbed toml for chupe/rust-simple_programming_problems written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chupe/rust-simple_programming_problems/Cargo.toml
[INFO] crate chupe/rust-simple_programming_problems 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing chupe/rust-simple_programming_problems 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-2/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/chupe/rust-simple_programming_problems:/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] 815c21cef81d2a9aeb783b8ad86f0fd49f2c72655b03ca0cb8114ac03d5be87f
[INFO] running `"docker" "start" "-a" "815c21cef81d2a9aeb783b8ad86f0fd49f2c72655b03ca0cb8114ac03d5be87f"`
[INFO] [stderr]    Compiling simple_programming_problems v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "815c21cef81d2a9aeb783b8ad86f0fd49f2c72655b03ca0cb8114ac03d5be87f"`
[INFO] running `"docker" "rm" "-f" "815c21cef81d2a9aeb783b8ad86f0fd49f2c72655b03ca0cb8114ac03d5be87f"`
[INFO] [stdout] 815c21cef81d2a9aeb783b8ad86f0fd49f2c72655b03ca0cb8114ac03d5be87f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/chupe/rust-simple_programming_problems:/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] c448772eb25fa66962433ae745a29495fe5642782b3b9a05bbf00a64f1d2dda4
[INFO] running `"docker" "start" "-a" "c448772eb25fa66962433ae745a29495fe5642782b3b9a05bbf00a64f1d2dda4"`
[INFO] [stderr]    Compiling simple_programming_problems v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "c448772eb25fa66962433ae745a29495fe5642782b3b9a05bbf00a64f1d2dda4"`
[INFO] running `"docker" "rm" "-f" "c448772eb25fa66962433ae745a29495fe5642782b3b9a05bbf00a64f1d2dda4"`
[INFO] [stdout] c448772eb25fa66962433ae745a29495fe5642782b3b9a05bbf00a64f1d2dda4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/chupe/rust-simple_programming_problems:/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] 616521460a8dcf1ea601806b217f56bae341cb6d0108785ed83fc8a24bc09cdd
[INFO] running `"docker" "start" "-a" "616521460a8dcf1ea601806b217f56bae341cb6d0108785ed83fc8a24bc09cdd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_programming_problems-7d398925956916f7
[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" "616521460a8dcf1ea601806b217f56bae341cb6d0108785ed83fc8a24bc09cdd"`
[INFO] running `"docker" "rm" "-f" "616521460a8dcf1ea601806b217f56bae341cb6d0108785ed83fc8a24bc09cdd"`
[INFO] [stdout] 616521460a8dcf1ea601806b217f56bae341cb6d0108785ed83fc8a24bc09cdd