[INFO] updating cached repository ripta/rust-test-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ripta/rust-test-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ripta/rust-test-guessing-game" "work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ripta/rust-test-guessing-game" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ripta/rust-test-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ripta/rust-test-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 79c1cc4bf3a2780e2df02a6418e2b2c7347cf672
[INFO] sha for GitHub repo ripta/rust-test-guessing-game: 79c1cc4bf3a2780e2df02a6418e2b2c7347cf672
[INFO] validating manifest of ripta/rust-test-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 ripta/rust-test-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 ripta/rust-test-guessing-game
[INFO] finished frobbing ripta/rust-test-guessing-game
[INFO] frobbed toml for ripta/rust-test-guessing-game written to work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-guessing-game/Cargo.toml
[INFO] started frobbing ripta/rust-test-guessing-game
[INFO] finished frobbing ripta/rust-test-guessing-game
[INFO] frobbed toml for ripta/rust-test-guessing-game written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ripta/rust-test-guessing-game/Cargo.toml
[INFO] crate ripta/rust-test-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/ripta/rust-test-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[INFO] the lockfile is outdated, regenerating it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 ripta/rust-test-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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-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] 7b837ab819ea372fa73dbca37d7129670a3316525c5751bdc4c3ad155506e744
[INFO] running `"docker" "start" "-a" "7b837ab819ea372fa73dbca37d7129670a3316525c5751bdc4c3ad155506e744"`
[INFO] [stderr]    Compiling rust-test-guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "7b837ab819ea372fa73dbca37d7129670a3316525c5751bdc4c3ad155506e744"`
[INFO] running `"docker" "rm" "-f" "7b837ab819ea372fa73dbca37d7129670a3316525c5751bdc4c3ad155506e744"`
[INFO] [stdout] 7b837ab819ea372fa73dbca37d7129670a3316525c5751bdc4c3ad155506e744
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-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] b35f657557f9ef5fe2b7f0e8fd8aa7ac0b2434d3869af78f18e1ca583551f5db
[INFO] running `"docker" "start" "-a" "b35f657557f9ef5fe2b7f0e8fd8aa7ac0b2434d3869af78f18e1ca583551f5db"`
[INFO] [stderr]    Compiling rust-test-guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "b35f657557f9ef5fe2b7f0e8fd8aa7ac0b2434d3869af78f18e1ca583551f5db"`
[INFO] running `"docker" "rm" "-f" "b35f657557f9ef5fe2b7f0e8fd8aa7ac0b2434d3869af78f18e1ca583551f5db"`
[INFO] [stdout] b35f657557f9ef5fe2b7f0e8fd8aa7ac0b2434d3869af78f18e1ca583551f5db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ripta/rust-test-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] b7ac0bdceba45292d5f9b531eec000ba977372df74e10b58cd5e7eab0e4a68a2
[INFO] running `"docker" "start" "-a" "b7ac0bdceba45292d5f9b531eec000ba977372df74e10b58cd5e7eab0e4a68a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_test_guessing_game-4e770556ec674660
[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" "b7ac0bdceba45292d5f9b531eec000ba977372df74e10b58cd5e7eab0e4a68a2"`
[INFO] running `"docker" "rm" "-f" "b7ac0bdceba45292d5f9b531eec000ba977372df74e10b58cd5e7eab0e4a68a2"`
[INFO] [stdout] b7ac0bdceba45292d5f9b531eec000ba977372df74e10b58cd5e7eab0e4a68a2