[INFO] updating cached repository travierm/rust_guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/travierm/rust_guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/travierm/rust_guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/travierm/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/travierm/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/travierm/rust_guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travierm/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travierm/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7d928d3042505e221ac1de2a61e758de917eae8d
[INFO] sha for GitHub repo travierm/rust_guessing_game: 7d928d3042505e221ac1de2a61e758de917eae8d
[INFO] validating manifest of travierm/rust_guessing_game 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 travierm/rust_guessing_game 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 travierm/rust_guessing_game
[INFO] finished frobbing travierm/rust_guessing_game
[INFO] frobbed toml for travierm/rust_guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/travierm/rust_guessing_game/Cargo.toml
[INFO] started frobbing travierm/rust_guessing_game
[INFO] finished frobbing travierm/rust_guessing_game
[INFO] frobbed toml for travierm/rust_guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/travierm/rust_guessing_game/Cargo.toml
[INFO] crate travierm/rust_guessing_game 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 travierm/rust_guessing_game 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-4/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/travierm/rust_guessing_game:/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] 71c46ad6d44367bc9a6f0e212ad5e6cb236888d5c9dc248ced7c4a8902dc2725
[INFO] running `"docker" "start" "-a" "71c46ad6d44367bc9a6f0e212ad5e6cb236888d5c9dc248ced7c4a8902dc2725"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `"docker" "inspect" "71c46ad6d44367bc9a6f0e212ad5e6cb236888d5c9dc248ced7c4a8902dc2725"`
[INFO] running `"docker" "rm" "-f" "71c46ad6d44367bc9a6f0e212ad5e6cb236888d5c9dc248ced7c4a8902dc2725"`
[INFO] [stdout] 71c46ad6d44367bc9a6f0e212ad5e6cb236888d5c9dc248ced7c4a8902dc2725
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/travierm/rust_guessing_game:/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] a0cc0d625344c4264fa1da9010fbaa2be81829bd610bf99ed2bd6d3ad0c85a7f
[INFO] running `"docker" "start" "-a" "a0cc0d625344c4264fa1da9010fbaa2be81829bd610bf99ed2bd6d3ad0c85a7f"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "a0cc0d625344c4264fa1da9010fbaa2be81829bd610bf99ed2bd6d3ad0c85a7f"`
[INFO] running `"docker" "rm" "-f" "a0cc0d625344c4264fa1da9010fbaa2be81829bd610bf99ed2bd6d3ad0c85a7f"`
[INFO] [stdout] a0cc0d625344c4264fa1da9010fbaa2be81829bd610bf99ed2bd6d3ad0c85a7f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/travierm/rust_guessing_game:/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] 92bacd2fa9b63c275b69c582c65c51f1eae3437f866398a0703725f2ed9c4469
[INFO] running `"docker" "start" "-a" "92bacd2fa9b63c275b69c582c65c51f1eae3437f866398a0703725f2ed9c4469"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-310a8a59cb3465c5
[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" "92bacd2fa9b63c275b69c582c65c51f1eae3437f866398a0703725f2ed9c4469"`
[INFO] running `"docker" "rm" "-f" "92bacd2fa9b63c275b69c582c65c51f1eae3437f866398a0703725f2ed9c4469"`
[INFO] [stdout] 92bacd2fa9b63c275b69c582c65c51f1eae3437f866398a0703725f2ed9c4469