[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-1.37-6/sources/1.36.0/gh/Knium/trpl-exercise-chap8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Knium/trpl-exercise-chap8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Knium/trpl-exercise-chap8" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Knium/trpl-exercise-chap8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Knium/trpl-exercise-chap8 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 Knium/trpl-exercise-chap8
[INFO] finished frobbing Knium/trpl-exercise-chap8
[INFO] frobbed toml for Knium/trpl-exercise-chap8 written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Knium/trpl-exercise-chap8 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 5b1dac48aa02698e42f3262a68f7b1b22e57c83f93be79fce4019a3130770ee1
[INFO] running `"docker" "start" "-a" "5b1dac48aa02698e42f3262a68f7b1b22e57c83f93be79fce4019a3130770ee1"`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "5b1dac48aa02698e42f3262a68f7b1b22e57c83f93be79fce4019a3130770ee1"`
[INFO] running `"docker" "rm" "-f" "5b1dac48aa02698e42f3262a68f7b1b22e57c83f93be79fce4019a3130770ee1"`
[INFO] [stdout] 5b1dac48aa02698e42f3262a68f7b1b22e57c83f93be79fce4019a3130770ee1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c4f1f179de4de5fc7851dd4db4d249352054bd57aecad06c9ef188dd581f0f6c
[INFO] running `"docker" "start" "-a" "c4f1f179de4de5fc7851dd4db4d249352054bd57aecad06c9ef188dd581f0f6c"`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "c4f1f179de4de5fc7851dd4db4d249352054bd57aecad06c9ef188dd581f0f6c"`
[INFO] running `"docker" "rm" "-f" "c4f1f179de4de5fc7851dd4db4d249352054bd57aecad06c9ef188dd581f0f6c"`
[INFO] [stdout] c4f1f179de4de5fc7851dd4db4d249352054bd57aecad06c9ef188dd581f0f6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 549ac121970bed71f70fe85f497611b002b5f038be1280601f58e58d2ecee0ec
[INFO] running `"docker" "start" "-a" "549ac121970bed71f70fe85f497611b002b5f038be1280601f58e58d2ecee0ec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/trpl_exercise_chap8-8e7376cd2fdf84c1
[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" "549ac121970bed71f70fe85f497611b002b5f038be1280601f58e58d2ecee0ec"`
[INFO] running `"docker" "rm" "-f" "549ac121970bed71f70fe85f497611b002b5f038be1280601f58e58d2ecee0ec"`
[INFO] [stdout] 549ac121970bed71f70fe85f497611b002b5f038be1280601f58e58d2ecee0ec