[INFO] updating cached repository Knium/trpl-exercise-chap8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Knium/trpl-exercise-chap8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Knium/trpl-exercise-chap8" "work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Knium/trpl-exercise-chap8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Knium/trpl-exercise-chap8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Knium/trpl-exercise-chap8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51ba570a09a7e0c4d7cda9296c36ec5b9545c78b
[INFO] sha for GitHub repo Knium/trpl-exercise-chap8: 51ba570a09a7e0c4d7cda9296c36ec5b9545c78b
[INFO] validating manifest of Knium/trpl-exercise-chap8 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 Knium/trpl-exercise-chap8 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 Knium/trpl-exercise-chap8
[INFO] finished frobbing Knium/trpl-exercise-chap8
[INFO] frobbed toml for Knium/trpl-exercise-chap8 written to work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8/Cargo.toml
[INFO] started frobbing Knium/trpl-exercise-chap8
[INFO] finished frobbing Knium/trpl-exercise-chap8
[INFO] frobbed toml for Knium/trpl-exercise-chap8 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Knium/trpl-exercise-chap8/Cargo.toml
[INFO] crate Knium/trpl-exercise-chap8 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 Knium/trpl-exercise-chap8 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8:/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] 5ae08c60c35eb35e1c16c172c5e9c7414c9c592bd0e6ee3811009fdaf4efd371
[INFO] running `"docker" "start" "-a" "5ae08c60c35eb35e1c16c172c5e9c7414c9c592bd0e6ee3811009fdaf4efd371"`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "5ae08c60c35eb35e1c16c172c5e9c7414c9c592bd0e6ee3811009fdaf4efd371"`
[INFO] running `"docker" "rm" "-f" "5ae08c60c35eb35e1c16c172c5e9c7414c9c592bd0e6ee3811009fdaf4efd371"`
[INFO] [stdout] 5ae08c60c35eb35e1c16c172c5e9c7414c9c592bd0e6ee3811009fdaf4efd371
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8:/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] 0febf1c2f63e572b3854b8bfde4e5add8dea37d0f7049510db08c0e551f78a0e
[INFO] running `"docker" "start" "-a" "0febf1c2f63e572b3854b8bfde4e5add8dea37d0f7049510db08c0e551f78a0e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "0febf1c2f63e572b3854b8bfde4e5add8dea37d0f7049510db08c0e551f78a0e"`
[INFO] running `"docker" "rm" "-f" "0febf1c2f63e572b3854b8bfde4e5add8dea37d0f7049510db08c0e551f78a0e"`
[INFO] [stdout] 0febf1c2f63e572b3854b8bfde4e5add8dea37d0f7049510db08c0e551f78a0e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Knium/trpl-exercise-chap8:/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] 633cbf03a424564e563f4179ad79204211f6080b63f43b0a6ea2ffbd0a323039
[INFO] running `"docker" "start" "-a" "633cbf03a424564e563f4179ad79204211f6080b63f43b0a6ea2ffbd0a323039"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/trpl_exercise_chap8-f4fd551c1b2a0414
[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" "633cbf03a424564e563f4179ad79204211f6080b63f43b0a6ea2ffbd0a323039"`
[INFO] running `"docker" "rm" "-f" "633cbf03a424564e563f4179ad79204211f6080b63f43b0a6ea2ffbd0a323039"`
[INFO] [stdout] 633cbf03a424564e563f4179ad79204211f6080b63f43b0a6ea2ffbd0a323039