[INFO] updating cached repository snoyberg/rush-crash-course-tokio-exercise-2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/snoyberg/rush-crash-course-tokio-exercise-2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/snoyberg/rush-crash-course-tokio-exercise-2" "work/ex/beta-1.38-1/sources/1.37.0/gh/snoyberg/rush-crash-course-tokio-exercise-2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/snoyberg/rush-crash-course-tokio-exercise-2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/snoyberg/rush-crash-course-tokio-exercise-2" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/snoyberg/rush-crash-course-tokio-exercise-2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/snoyberg/rush-crash-course-tokio-exercise-2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 03c5b9029263ce36e626e877e986a281c9334d4e
[INFO] sha for GitHub repo snoyberg/rush-crash-course-tokio-exercise-2: 03c5b9029263ce36e626e877e986a281c9334d4e
[INFO] validating manifest of snoyberg/rush-crash-course-tokio-exercise-2 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 snoyberg/rush-crash-course-tokio-exercise-2 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 snoyberg/rush-crash-course-tokio-exercise-2
[INFO] finished frobbing snoyberg/rush-crash-course-tokio-exercise-2
[INFO] frobbed toml for snoyberg/rush-crash-course-tokio-exercise-2 written to work/ex/beta-1.38-1/sources/1.37.0/gh/snoyberg/rush-crash-course-tokio-exercise-2/Cargo.toml
[INFO] started frobbing snoyberg/rush-crash-course-tokio-exercise-2
[INFO] finished frobbing snoyberg/rush-crash-course-tokio-exercise-2
[INFO] frobbed toml for snoyberg/rush-crash-course-tokio-exercise-2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/snoyberg/rush-crash-course-tokio-exercise-2/Cargo.toml
[INFO] crate snoyberg/rush-crash-course-tokio-exercise-2 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 snoyberg/rush-crash-course-tokio-exercise-2 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-2/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/snoyberg/rush-crash-course-tokio-exercise-2:/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] 01372c722eaa73c52ff486dea422250846625a9511e2f2c12e83052db89a2947
[INFO] running `"docker" "start" "-a" "01372c722eaa73c52ff486dea422250846625a9511e2f2c12e83052db89a2947"`
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.4
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling exercise2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.44s
[INFO] running `"docker" "inspect" "01372c722eaa73c52ff486dea422250846625a9511e2f2c12e83052db89a2947"`
[INFO] running `"docker" "rm" "-f" "01372c722eaa73c52ff486dea422250846625a9511e2f2c12e83052db89a2947"`
[INFO] [stdout] 01372c722eaa73c52ff486dea422250846625a9511e2f2c12e83052db89a2947
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/snoyberg/rush-crash-course-tokio-exercise-2:/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] 21f6eef377f6379ab8afefb2e7574cf9adb8693f3f8dd1bc31be961790f45e0b
[INFO] running `"docker" "start" "-a" "21f6eef377f6379ab8afefb2e7574cf9adb8693f3f8dd1bc31be961790f45e0b"`
[INFO] [stderr]    Compiling exercise2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `"docker" "inspect" "21f6eef377f6379ab8afefb2e7574cf9adb8693f3f8dd1bc31be961790f45e0b"`
[INFO] running `"docker" "rm" "-f" "21f6eef377f6379ab8afefb2e7574cf9adb8693f3f8dd1bc31be961790f45e0b"`
[INFO] [stdout] 21f6eef377f6379ab8afefb2e7574cf9adb8693f3f8dd1bc31be961790f45e0b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/snoyberg/rush-crash-course-tokio-exercise-2:/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] 4cce171b95bb34ca353a56bb79c242bc98417d25c90af70d13216b9b8f2ee8fe
[INFO] running `"docker" "start" "-a" "4cce171b95bb34ca353a56bb79c242bc98417d25c90af70d13216b9b8f2ee8fe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exercise2-d2aa893263e26b62
[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" "4cce171b95bb34ca353a56bb79c242bc98417d25c90af70d13216b9b8f2ee8fe"`
[INFO] running `"docker" "rm" "-f" "4cce171b95bb34ca353a56bb79c242bc98417d25c90af70d13216b9b8f2ee8fe"`
[INFO] [stdout] 4cce171b95bb34ca353a56bb79c242bc98417d25c90af70d13216b9b8f2ee8fe