[INFO] updating cached repository davidbegin/rust-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidbegin/rust-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidbegin/rust-guessing-game" "work/ex/beta-1.37-6/sources/1.36.0/gh/davidbegin/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/davidbegin/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidbegin/rust-guessing-game" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/davidbegin/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/davidbegin/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f3970f30e5c9dc705cf30bb305ab149943074797
[INFO] sha for GitHub repo davidbegin/rust-guessing-game: f3970f30e5c9dc705cf30bb305ab149943074797
[INFO] validating manifest of davidbegin/rust-guessing-game 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 davidbegin/rust-guessing-game 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 davidbegin/rust-guessing-game
[INFO] finished frobbing davidbegin/rust-guessing-game
[INFO] frobbed toml for davidbegin/rust-guessing-game written to work/ex/beta-1.37-6/sources/1.36.0/gh/davidbegin/rust-guessing-game/Cargo.toml
[INFO] started frobbing davidbegin/rust-guessing-game
[INFO] finished frobbing davidbegin/rust-guessing-game
[INFO] frobbed toml for davidbegin/rust-guessing-game written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/davidbegin/rust-guessing-game/Cargo.toml
[INFO] crate davidbegin/rust-guessing-game 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/davidbegin/rust-guessing-game/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 davidbegin/rust-guessing-game 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/davidbegin/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4712f95395d32eb69c2432d64b918e828089f3ee3285bf4f01088c195fa2ad08
[INFO] running `"docker" "start" "-a" "4712f95395d32eb69c2432d64b918e828089f3ee3285bf4f01088c195fa2ad08"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "4712f95395d32eb69c2432d64b918e828089f3ee3285bf4f01088c195fa2ad08"`
[INFO] running `"docker" "rm" "-f" "4712f95395d32eb69c2432d64b918e828089f3ee3285bf4f01088c195fa2ad08"`
[INFO] [stdout] 4712f95395d32eb69c2432d64b918e828089f3ee3285bf4f01088c195fa2ad08
[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/davidbegin/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 70d9d50802d941dc0bcaf398fe2d4c04a76fc82cf8f2a2418e1bd4f4da1281e8
[INFO] running `"docker" "start" "-a" "70d9d50802d941dc0bcaf398fe2d4c04a76fc82cf8f2a2418e1bd4f4da1281e8"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "70d9d50802d941dc0bcaf398fe2d4c04a76fc82cf8f2a2418e1bd4f4da1281e8"`
[INFO] running `"docker" "rm" "-f" "70d9d50802d941dc0bcaf398fe2d4c04a76fc82cf8f2a2418e1bd4f4da1281e8"`
[INFO] [stdout] 70d9d50802d941dc0bcaf398fe2d4c04a76fc82cf8f2a2418e1bd4f4da1281e8
[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/davidbegin/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f85fa8754eb5420cc348c83e8d50eabb5af4b88cc17b564470b3705832bf44e2
[INFO] running `"docker" "start" "-a" "f85fa8754eb5420cc348c83e8d50eabb5af4b88cc17b564470b3705832bf44e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-f3e495f6ff4cfbb0
[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" "f85fa8754eb5420cc348c83e8d50eabb5af4b88cc17b564470b3705832bf44e2"`
[INFO] running `"docker" "rm" "-f" "f85fa8754eb5420cc348c83e8d50eabb5af4b88cc17b564470b3705832bf44e2"`
[INFO] [stdout] f85fa8754eb5420cc348c83e8d50eabb5af4b88cc17b564470b3705832bf44e2