[INFO] updating cached repository kwanCCC/rust-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kwanCCC/rust-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kwanCCC/rust-tutorial" "work/ex/beta-1.38-1/sources/1.37.0/gh/kwanCCC/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kwanCCC/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kwanCCC/rust-tutorial" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwanCCC/rust-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwanCCC/rust-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 971f7fbc762196f604ec24b71331db2c1695b416
[INFO] sha for GitHub repo kwanCCC/rust-tutorial: 971f7fbc762196f604ec24b71331db2c1695b416
[INFO] validating manifest of kwanCCC/rust-tutorial 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 kwanCCC/rust-tutorial 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 kwanCCC/rust-tutorial
[INFO] finished frobbing kwanCCC/rust-tutorial
[INFO] frobbed toml for kwanCCC/rust-tutorial written to work/ex/beta-1.38-1/sources/1.37.0/gh/kwanCCC/rust-tutorial/Cargo.toml
[INFO] started frobbing kwanCCC/rust-tutorial
[INFO] finished frobbing kwanCCC/rust-tutorial
[INFO] frobbed toml for kwanCCC/rust-tutorial written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwanCCC/rust-tutorial/Cargo.toml
[INFO] crate kwanCCC/rust-tutorial 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 kwanCCC/rust-tutorial 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/kwanCCC/rust-tutorial:/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] 34c3be45aca89d4bb8bc5b4eb4b138c74d13b99dacac68a68c5db8008c356852
[INFO] running `"docker" "start" "-a" "34c3be45aca89d4bb8bc5b4eb4b138c74d13b99dacac68a68c5db8008c356852"`
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `"docker" "inspect" "34c3be45aca89d4bb8bc5b4eb4b138c74d13b99dacac68a68c5db8008c356852"`
[INFO] running `"docker" "rm" "-f" "34c3be45aca89d4bb8bc5b4eb4b138c74d13b99dacac68a68c5db8008c356852"`
[INFO] [stdout] 34c3be45aca89d4bb8bc5b4eb4b138c74d13b99dacac68a68c5db8008c356852
[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/kwanCCC/rust-tutorial:/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] b7a2a090ffe6a6ee4ae91ed34e808690f43649d2fa8ff2403b8b98c808294a3e
[INFO] running `"docker" "start" "-a" "b7a2a090ffe6a6ee4ae91ed34e808690f43649d2fa8ff2403b8b98c808294a3e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "b7a2a090ffe6a6ee4ae91ed34e808690f43649d2fa8ff2403b8b98c808294a3e"`
[INFO] running `"docker" "rm" "-f" "b7a2a090ffe6a6ee4ae91ed34e808690f43649d2fa8ff2403b8b98c808294a3e"`
[INFO] [stdout] b7a2a090ffe6a6ee4ae91ed34e808690f43649d2fa8ff2403b8b98c808294a3e
[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/kwanCCC/rust-tutorial:/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] 472bb2723620b359fad1a20d2d6c25c4039a8bf48a7cc1f5f6c596ffe3bdccea
[INFO] running `"docker" "start" "-a" "472bb2723620b359fad1a20d2d6c25c4039a8bf48a7cc1f5f6c596ffe3bdccea"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-688b9a33c8c2ba03
[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" "472bb2723620b359fad1a20d2d6c25c4039a8bf48a7cc1f5f6c596ffe3bdccea"`
[INFO] running `"docker" "rm" "-f" "472bb2723620b359fad1a20d2d6c25c4039a8bf48a7cc1f5f6c596ffe3bdccea"`
[INFO] [stdout] 472bb2723620b359fad1a20d2d6c25c4039a8bf48a7cc1f5f6c596ffe3bdccea