[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 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9666546f0f2450a6ee02ff3fc2c5e64ea4789d748a3ed1c0deb067d28b02a391
[INFO] running `"docker" "start" "-a" "9666546f0f2450a6ee02ff3fc2c5e64ea4789d748a3ed1c0deb067d28b02a391"`
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[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 22.24s
[INFO] running `"docker" "inspect" "9666546f0f2450a6ee02ff3fc2c5e64ea4789d748a3ed1c0deb067d28b02a391"`
[INFO] running `"docker" "rm" "-f" "9666546f0f2450a6ee02ff3fc2c5e64ea4789d748a3ed1c0deb067d28b02a391"`
[INFO] [stdout] 9666546f0f2450a6ee02ff3fc2c5e64ea4789d748a3ed1c0deb067d28b02a391
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7a1cadfe20aaec6dee72363a97553b2394bded1af0dcd649e01c82f44c298036
[INFO] running `"docker" "start" "-a" "7a1cadfe20aaec6dee72363a97553b2394bded1af0dcd649e01c82f44c298036"`
[INFO] [stderr]    Compiling exercise2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "7a1cadfe20aaec6dee72363a97553b2394bded1af0dcd649e01c82f44c298036"`
[INFO] running `"docker" "rm" "-f" "7a1cadfe20aaec6dee72363a97553b2394bded1af0dcd649e01c82f44c298036"`
[INFO] [stdout] 7a1cadfe20aaec6dee72363a97553b2394bded1af0dcd649e01c82f44c298036
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 31af95f8086433d4b86fdb8e84f2b4b7eb801eaa05e8146528c89134daf24527
[INFO] running `"docker" "start" "-a" "31af95f8086433d4b86fdb8e84f2b4b7eb801eaa05e8146528c89134daf24527"`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exercise2-49335445e199ac83
[INFO] running `"docker" "inspect" "31af95f8086433d4b86fdb8e84f2b4b7eb801eaa05e8146528c89134daf24527"`
[INFO] running `"docker" "rm" "-f" "31af95f8086433d4b86fdb8e84f2b4b7eb801eaa05e8146528c89134daf24527"`
[INFO] [stdout] 31af95f8086433d4b86fdb8e84f2b4b7eb801eaa05e8146528c89134daf24527