[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 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9f30339144ab4c2c9d9e738f50e95afcc0a766e84cb6bb57924ddfe48df3a261
[INFO] running `"docker" "start" "-a" "9f30339144ab4c2c9d9e738f50e95afcc0a766e84cb6bb57924ddfe48df3a261"`
[INFO] [stderr]    Compiling simple_programming_problems v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "9f30339144ab4c2c9d9e738f50e95afcc0a766e84cb6bb57924ddfe48df3a261"`
[INFO] running `"docker" "rm" "-f" "9f30339144ab4c2c9d9e738f50e95afcc0a766e84cb6bb57924ddfe48df3a261"`
[INFO] [stdout] 9f30339144ab4c2c9d9e738f50e95afcc0a766e84cb6bb57924ddfe48df3a261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 214d59893d204c48b48370b20e916bdc91a2065ee7e1bb2ef44806c7518e6806
[INFO] running `"docker" "start" "-a" "214d59893d204c48b48370b20e916bdc91a2065ee7e1bb2ef44806c7518e6806"`
[INFO] [stderr]    Compiling simple_programming_problems v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "214d59893d204c48b48370b20e916bdc91a2065ee7e1bb2ef44806c7518e6806"`
[INFO] running `"docker" "rm" "-f" "214d59893d204c48b48370b20e916bdc91a2065ee7e1bb2ef44806c7518e6806"`
[INFO] [stdout] 214d59893d204c48b48370b20e916bdc91a2065ee7e1bb2ef44806c7518e6806
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 966f73dfaa4c9c347a74268ce72d83e97a89039616250f7f53318743de0f4cc3
[INFO] running `"docker" "start" "-a" "966f73dfaa4c9c347a74268ce72d83e97a89039616250f7f53318743de0f4cc3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_programming_problems-97567904b677dfe3
[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" "966f73dfaa4c9c347a74268ce72d83e97a89039616250f7f53318743de0f4cc3"`
[INFO] running `"docker" "rm" "-f" "966f73dfaa4c9c347a74268ce72d83e97a89039616250f7f53318743de0f4cc3"`
[INFO] [stdout] 966f73dfaa4c9c347a74268ce72d83e97a89039616250f7f53318743de0f4cc3