[INFO] updating cached repository scvalex/python-challenge
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/scvalex/python-challenge
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/scvalex/python-challenge" "work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/scvalex/python-challenge" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/scvalex/python-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/scvalex/python-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d9f22bb0bfb9df866d4aa79f61287e852760d11b
[INFO] sha for GitHub repo scvalex/python-challenge: d9f22bb0bfb9df866d4aa79f61287e852760d11b
[INFO] validating manifest of scvalex/python-challenge 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 scvalex/python-challenge 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 scvalex/python-challenge
[INFO] finished frobbing scvalex/python-challenge
[INFO] frobbed toml for scvalex/python-challenge written to work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge/Cargo.toml
[INFO] started frobbing scvalex/python-challenge
[INFO] finished frobbing scvalex/python-challenge
[INFO] frobbed toml for scvalex/python-challenge written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/scvalex/python-challenge/Cargo.toml
[INFO] crate scvalex/python-challenge 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 scvalex/python-challenge against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] dabb09cc9120631936d9d94dac2f8708d5729ec1d81994d26d2b0b6c37b95c67
[INFO] running `"docker" "start" "-a" "dabb09cc9120631936d9d94dac2f8708d5729ec1d81994d26d2b0b6c37b95c67"`
[INFO] [stderr]    Compiling openssl-sys v0.9.28
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling hyper v0.11.25
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling hyper-tls v0.1.3
[INFO] [stderr]    Compiling reqwest v0.8.5
[INFO] [stderr]    Compiling python-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.81s
[INFO] running `"docker" "inspect" "dabb09cc9120631936d9d94dac2f8708d5729ec1d81994d26d2b0b6c37b95c67"`
[INFO] running `"docker" "rm" "-f" "dabb09cc9120631936d9d94dac2f8708d5729ec1d81994d26d2b0b6c37b95c67"`
[INFO] [stdout] dabb09cc9120631936d9d94dac2f8708d5729ec1d81994d26d2b0b6c37b95c67
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 29cee567e0cf75b284018eb7bfacfd24ac108601b4b93b610690b287b5c8ee14
[INFO] running `"docker" "start" "-a" "29cee567e0cf75b284018eb7bfacfd24ac108601b4b93b610690b287b5c8ee14"`
[INFO] [stderr]    Compiling python-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "29cee567e0cf75b284018eb7bfacfd24ac108601b4b93b610690b287b5c8ee14"`
[INFO] running `"docker" "rm" "-f" "29cee567e0cf75b284018eb7bfacfd24ac108601b4b93b610690b287b5c8ee14"`
[INFO] [stdout] 29cee567e0cf75b284018eb7bfacfd24ac108601b4b93b610690b287b5c8ee14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/scvalex/python-challenge:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 77de7c7d4e5be2fb19904aaa2a1e3493f077efaa6bd04e84116cb286a5ea4d51
[INFO] running `"docker" "start" "-a" "77de7c7d4e5be2fb19904aaa2a1e3493f077efaa6bd04e84116cb286a5ea4d51"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/python_challenge-1b6c368e8902835b
[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] [stderr]      Running /opt/crater/target/debug/deps/python_challenge-81b591e1ebd5dba9
[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] [stderr]    Doc-tests python-challenge
[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" "77de7c7d4e5be2fb19904aaa2a1e3493f077efaa6bd04e84116cb286a5ea4d51"`
[INFO] running `"docker" "rm" "-f" "77de7c7d4e5be2fb19904aaa2a1e3493f077efaa6bd04e84116cb286a5ea4d51"`
[INFO] [stdout] 77de7c7d4e5be2fb19904aaa2a1e3493f077efaa6bd04e84116cb286a5ea4d51