[INFO] updating cached repository jutley/rust_chapt2_practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jutley/rust_chapt2_practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jutley/rust_chapt2_practice" "work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jutley/rust_chapt2_practice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jutley/rust_chapt2_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jutley/rust_chapt2_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aa822f1c16d5251e2dc2236398de175cf11e347d
[INFO] sha for GitHub repo jutley/rust_chapt2_practice: aa822f1c16d5251e2dc2236398de175cf11e347d
[INFO] validating manifest of jutley/rust_chapt2_practice 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 jutley/rust_chapt2_practice 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 jutley/rust_chapt2_practice
[INFO] finished frobbing jutley/rust_chapt2_practice
[INFO] frobbed toml for jutley/rust_chapt2_practice written to work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice/Cargo.toml
[INFO] started frobbing jutley/rust_chapt2_practice
[INFO] finished frobbing jutley/rust_chapt2_practice
[INFO] frobbed toml for jutley/rust_chapt2_practice written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jutley/rust_chapt2_practice/Cargo.toml
[INFO] crate jutley/rust_chapt2_practice 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 jutley/rust_chapt2_practice 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice:/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] e613ed7b03787760018152b51677675b15bfb59121784a0ed82e5bbc88caca56
[INFO] running `"docker" "start" "-a" "e613ed7b03787760018152b51677675b15bfb59121784a0ed82e5bbc88caca56"`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "e613ed7b03787760018152b51677675b15bfb59121784a0ed82e5bbc88caca56"`
[INFO] running `"docker" "rm" "-f" "e613ed7b03787760018152b51677675b15bfb59121784a0ed82e5bbc88caca56"`
[INFO] [stdout] e613ed7b03787760018152b51677675b15bfb59121784a0ed82e5bbc88caca56
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice:/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] a669d230c2e786edac288fdcc02cb9dd417928ec6be34aefb58f32b72f5e5271
[INFO] running `"docker" "start" "-a" "a669d230c2e786edac288fdcc02cb9dd417928ec6be34aefb58f32b72f5e5271"`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "a669d230c2e786edac288fdcc02cb9dd417928ec6be34aefb58f32b72f5e5271"`
[INFO] running `"docker" "rm" "-f" "a669d230c2e786edac288fdcc02cb9dd417928ec6be34aefb58f32b72f5e5271"`
[INFO] [stdout] a669d230c2e786edac288fdcc02cb9dd417928ec6be34aefb58f32b72f5e5271
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jutley/rust_chapt2_practice:/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] a33602e0f0dcc17902810085a62f8f8425a4c007d9a590e47118ff9f1b69b332
[INFO] running `"docker" "start" "-a" "a33602e0f0dcc17902810085a62f8f8425a4c007d9a590e47118ff9f1b69b332"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_chapt2_practice-5ee6acf194464122
[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" "a33602e0f0dcc17902810085a62f8f8425a4c007d9a590e47118ff9f1b69b332"`
[INFO] running `"docker" "rm" "-f" "a33602e0f0dcc17902810085a62f8f8425a4c007d9a590e47118ff9f1b69b332"`
[INFO] [stdout] a33602e0f0dcc17902810085a62f8f8425a4c007d9a590e47118ff9f1b69b332