[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 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b25d6bb5a549858cc9f9303fd543893e1379215e8e09a2316ee54f608004c6c8
[INFO] running `"docker" "start" "-a" "b25d6bb5a549858cc9f9303fd543893e1379215e8e09a2316ee54f608004c6c8"`
[INFO] [stderr]    Compiling lecture8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "b25d6bb5a549858cc9f9303fd543893e1379215e8e09a2316ee54f608004c6c8"`
[INFO] running `"docker" "rm" "-f" "b25d6bb5a549858cc9f9303fd543893e1379215e8e09a2316ee54f608004c6c8"`
[INFO] [stdout] b25d6bb5a549858cc9f9303fd543893e1379215e8e09a2316ee54f608004c6c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a018748ef72979312d4fda0a0d293f830e0c7eb6fa49589deeed5d4391bbddd2
[INFO] running `"docker" "start" "-a" "a018748ef72979312d4fda0a0d293f830e0c7eb6fa49589deeed5d4391bbddd2"`
[INFO] [stderr]    Compiling lecture8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "a018748ef72979312d4fda0a0d293f830e0c7eb6fa49589deeed5d4391bbddd2"`
[INFO] running `"docker" "rm" "-f" "a018748ef72979312d4fda0a0d293f830e0c7eb6fa49589deeed5d4391bbddd2"`
[INFO] [stdout] a018748ef72979312d4fda0a0d293f830e0c7eb6fa49589deeed5d4391bbddd2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 7b3d550fb04f94930d330927c3fa09f2cfd494923880c9d26927f176d9e6caf0
[INFO] running `"docker" "start" "-a" "7b3d550fb04f94930d330927c3fa09f2cfd494923880c9d26927f176d9e6caf0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lecture8-692d352f248602d4
[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" "7b3d550fb04f94930d330927c3fa09f2cfd494923880c9d26927f176d9e6caf0"`
[INFO] running `"docker" "rm" "-f" "7b3d550fb04f94930d330927c3fa09f2cfd494923880c9d26927f176d9e6caf0"`
[INFO] [stdout] 7b3d550fb04f94930d330927c3fa09f2cfd494923880c9d26927f176d9e6caf0