[INFO] updating cached repository deepak/guessing-game.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/deepak/guessing-game.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/deepak/guessing-game.rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/deepak/guessing-game.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/deepak/guessing-game.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/deepak/guessing-game.rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e57cae071c7af2b2537ab35c4695f6895176ed2
[INFO] sha for GitHub repo deepak/guessing-game.rs: 1e57cae071c7af2b2537ab35c4695f6895176ed2
[INFO] validating manifest of deepak/guessing-game.rs 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 deepak/guessing-game.rs 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 deepak/guessing-game.rs
[INFO] finished frobbing deepak/guessing-game.rs
[INFO] frobbed toml for deepak/guessing-game.rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/deepak/guessing-game.rs/Cargo.toml
[INFO] started frobbing deepak/guessing-game.rs
[INFO] finished frobbing deepak/guessing-game.rs
[INFO] frobbed toml for deepak/guessing-game.rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs/Cargo.toml
[INFO] crate deepak/guessing-game.rs 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/deepak/guessing-game.rs/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[INFO] the lockfile is outdated, regenerating it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 deepak/guessing-game.rs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 105ece71f07588cc00d614995df9e412503f9b680f7f2c4944a2292b33bc47e7
[INFO] running `"docker" "start" "-a" "105ece71f07588cc00d614995df9e412503f9b680f7f2c4944a2292b33bc47e7"`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "105ece71f07588cc00d614995df9e412503f9b680f7f2c4944a2292b33bc47e7"`
[INFO] running `"docker" "rm" "-f" "105ece71f07588cc00d614995df9e412503f9b680f7f2c4944a2292b33bc47e7"`
[INFO] [stdout] 105ece71f07588cc00d614995df9e412503f9b680f7f2c4944a2292b33bc47e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2d0b47a44e583177adf77b969057fd876cdffdcf1b1d83d85b0dd827330df3d3
[INFO] running `"docker" "start" "-a" "2d0b47a44e583177adf77b969057fd876cdffdcf1b1d83d85b0dd827330df3d3"`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "2d0b47a44e583177adf77b969057fd876cdffdcf1b1d83d85b0dd827330df3d3"`
[INFO] running `"docker" "rm" "-f" "2d0b47a44e583177adf77b969057fd876cdffdcf1b1d83d85b0dd827330df3d3"`
[INFO] [stdout] 2d0b47a44e583177adf77b969057fd876cdffdcf1b1d83d85b0dd827330df3d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/deepak/guessing-game.rs:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b7c60376dbe4e55d19b04c12bfd1f5d33bdddc882ee5e388019cc1bccfd7bf8a
[INFO] running `"docker" "start" "-a" "b7c60376dbe4e55d19b04c12bfd1f5d33bdddc882ee5e388019cc1bccfd7bf8a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-50ac3f3a1b801c82
[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" "b7c60376dbe4e55d19b04c12bfd1f5d33bdddc882ee5e388019cc1bccfd7bf8a"`
[INFO] running `"docker" "rm" "-f" "b7c60376dbe4e55d19b04c12bfd1f5d33bdddc882ee5e388019cc1bccfd7bf8a"`
[INFO] [stdout] b7c60376dbe4e55d19b04c12bfd1f5d33bdddc882ee5e388019cc1bccfd7bf8a