[INFO] updating cached repository upenn-cis198-2018f/lecture8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/upenn-cis198-2018f/lecture8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/upenn-cis198-2018f/lecture8" "work/ex/beta-1.38-1/sources/1.37.0/gh/upenn-cis198-2018f/lecture8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/upenn-cis198-2018f/lecture8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/upenn-cis198-2018f/lecture8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/upenn-cis198-2018f/lecture8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/upenn-cis198-2018f/lecture8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ccc03f9683e90bfe33b0a8fc34771bfbb72ed746
[INFO] sha for GitHub repo upenn-cis198-2018f/lecture8: ccc03f9683e90bfe33b0a8fc34771bfbb72ed746
[INFO] validating manifest of upenn-cis198-2018f/lecture8 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 upenn-cis198-2018f/lecture8 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 upenn-cis198-2018f/lecture8
[INFO] finished frobbing upenn-cis198-2018f/lecture8
[INFO] frobbed toml for upenn-cis198-2018f/lecture8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/upenn-cis198-2018f/lecture8/Cargo.toml
[INFO] started frobbing upenn-cis198-2018f/lecture8
[INFO] finished frobbing upenn-cis198-2018f/lecture8
[INFO] frobbed toml for upenn-cis198-2018f/lecture8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/upenn-cis198-2018f/lecture8/Cargo.toml
[INFO] crate upenn-cis198-2018f/lecture8 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 upenn-cis198-2018f/lecture8 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-0/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/upenn-cis198-2018f/lecture8:/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] bd882dd7964f2295edf7f03454b7eb533faadaae24e5924394e261f42e6b0372
[INFO] running `"docker" "start" "-a" "bd882dd7964f2295edf7f03454b7eb533faadaae24e5924394e261f42e6b0372"`
[INFO] [stderr]    Compiling lecture8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "bd882dd7964f2295edf7f03454b7eb533faadaae24e5924394e261f42e6b0372"`
[INFO] running `"docker" "rm" "-f" "bd882dd7964f2295edf7f03454b7eb533faadaae24e5924394e261f42e6b0372"`
[INFO] [stdout] bd882dd7964f2295edf7f03454b7eb533faadaae24e5924394e261f42e6b0372
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/upenn-cis198-2018f/lecture8:/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] e14ff2916e2bea494153646f496bede6c8679d986d773704368eb4809b7fdac5
[INFO] running `"docker" "start" "-a" "e14ff2916e2bea494153646f496bede6c8679d986d773704368eb4809b7fdac5"`
[INFO] [stderr]    Compiling lecture8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "e14ff2916e2bea494153646f496bede6c8679d986d773704368eb4809b7fdac5"`
[INFO] running `"docker" "rm" "-f" "e14ff2916e2bea494153646f496bede6c8679d986d773704368eb4809b7fdac5"`
[INFO] [stdout] e14ff2916e2bea494153646f496bede6c8679d986d773704368eb4809b7fdac5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/upenn-cis198-2018f/lecture8:/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] f4441d5ff35bae5664fcc2d92637052d779398e7996f5f0fa6e2522ee24b7a77
[INFO] running `"docker" "start" "-a" "f4441d5ff35bae5664fcc2d92637052d779398e7996f5f0fa6e2522ee24b7a77"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lecture8-6ad8c9a70d99c0f2
[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" "f4441d5ff35bae5664fcc2d92637052d779398e7996f5f0fa6e2522ee24b7a77"`
[INFO] running `"docker" "rm" "-f" "f4441d5ff35bae5664fcc2d92637052d779398e7996f5f0fa6e2522ee24b7a77"`
[INFO] [stdout] f4441d5ff35bae5664fcc2d92637052d779398e7996f5f0fa6e2522ee24b7a77