[INFO] updating cached repository yshuman1/rust-book-exercises
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yshuman1/rust-book-exercises
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yshuman1/rust-book-exercises" "work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yshuman1/rust-book-exercises" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yshuman1/rust-book-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yshuman1/rust-book-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6fbd66c89e51e1d87137833070bb8c0181c917c
[INFO] sha for GitHub repo yshuman1/rust-book-exercises: c6fbd66c89e51e1d87137833070bb8c0181c917c
[INFO] validating manifest of yshuman1/rust-book-exercises 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 yshuman1/rust-book-exercises 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 yshuman1/rust-book-exercises
[INFO] finished frobbing yshuman1/rust-book-exercises
[INFO] frobbed toml for yshuman1/rust-book-exercises written to work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises/Cargo.toml
[INFO] started frobbing yshuman1/rust-book-exercises
[INFO] finished frobbing yshuman1/rust-book-exercises
[INFO] frobbed toml for yshuman1/rust-book-exercises written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yshuman1/rust-book-exercises/Cargo.toml
[INFO] crate yshuman1/rust-book-exercises 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yshuman1/rust-book-exercises 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises:/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] 7638da47ebef649d1e2f3864f8f4f2a83975a687f9ae5dadd8491012caa60607
[INFO] running `"docker" "start" "-a" "7638da47ebef649d1e2f3864f8f4f2a83975a687f9ae5dadd8491012caa60607"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "7638da47ebef649d1e2f3864f8f4f2a83975a687f9ae5dadd8491012caa60607"`
[INFO] running `"docker" "rm" "-f" "7638da47ebef649d1e2f3864f8f4f2a83975a687f9ae5dadd8491012caa60607"`
[INFO] [stdout] 7638da47ebef649d1e2f3864f8f4f2a83975a687f9ae5dadd8491012caa60607
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises:/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] e43aecbe692279ec7b5f1b9993fcf7b5e7cf2f91dd615e02f6bc5289733d265b
[INFO] running `"docker" "start" "-a" "e43aecbe692279ec7b5f1b9993fcf7b5e7cf2f91dd615e02f6bc5289733d265b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "e43aecbe692279ec7b5f1b9993fcf7b5e7cf2f91dd615e02f6bc5289733d265b"`
[INFO] running `"docker" "rm" "-f" "e43aecbe692279ec7b5f1b9993fcf7b5e7cf2f91dd615e02f6bc5289733d265b"`
[INFO] [stdout] e43aecbe692279ec7b5f1b9993fcf7b5e7cf2f91dd615e02f6bc5289733d265b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yshuman1/rust-book-exercises:/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] cbb78f426b62d4de3c857932987c9e122521ce5a085bef2b80641ad7588e9230
[INFO] running `"docker" "start" "-a" "cbb78f426b62d4de3c857932987c9e122521ce5a085bef2b80641ad7588e9230"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-58c232806c714553
[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" "cbb78f426b62d4de3c857932987c9e122521ce5a085bef2b80641ad7588e9230"`
[INFO] running `"docker" "rm" "-f" "cbb78f426b62d4de3c857932987c9e122521ce5a085bef2b80641ad7588e9230"`
[INFO] [stdout] cbb78f426b62d4de3c857932987c9e122521ce5a085bef2b80641ad7588e9230