[INFO] updating cached repository Minege/FindTheNumber
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Minege/FindTheNumber
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Minege/FindTheNumber" "work/ex/beta-1.37-6/sources/1.36.0/gh/Minege/FindTheNumber"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Minege/FindTheNumber'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Minege/FindTheNumber" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Minege/FindTheNumber"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Minege/FindTheNumber'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e2c36875fbbeb671d3d74156b8ebd53684a8815
[INFO] sha for GitHub repo Minege/FindTheNumber: 5e2c36875fbbeb671d3d74156b8ebd53684a8815
[INFO] validating manifest of Minege/FindTheNumber 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 Minege/FindTheNumber 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 Minege/FindTheNumber
[INFO] finished frobbing Minege/FindTheNumber
[INFO] frobbed toml for Minege/FindTheNumber written to work/ex/beta-1.37-6/sources/1.36.0/gh/Minege/FindTheNumber/Cargo.toml
[INFO] started frobbing Minege/FindTheNumber
[INFO] finished frobbing Minege/FindTheNumber
[INFO] frobbed toml for Minege/FindTheNumber written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Minege/FindTheNumber/Cargo.toml
[INFO] crate Minege/FindTheNumber 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Minege/FindTheNumber 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-1/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/Minege/FindTheNumber:/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] 1912a7750e51f2b1a68a76983c998252fcba5b9bd865020fac4800b7057d15fd
[INFO] running `"docker" "start" "-a" "1912a7750e51f2b1a68a76983c998252fcba5b9bd865020fac4800b7057d15fd"`
[INFO] [stderr]    Compiling guess_the_number v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `secret_number` is never read
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut secret_number = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "1912a7750e51f2b1a68a76983c998252fcba5b9bd865020fac4800b7057d15fd"`
[INFO] running `"docker" "rm" "-f" "1912a7750e51f2b1a68a76983c998252fcba5b9bd865020fac4800b7057d15fd"`
[INFO] [stdout] 1912a7750e51f2b1a68a76983c998252fcba5b9bd865020fac4800b7057d15fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/Minege/FindTheNumber:/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] 17c793d2f115d9d9e4cb0b79350abf98a1198f86e3c1b8de137ef5c8354ba7e5
[INFO] running `"docker" "start" "-a" "17c793d2f115d9d9e4cb0b79350abf98a1198f86e3c1b8de137ef5c8354ba7e5"`
[INFO] [stderr]    Compiling guess_the_number v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `secret_number` is never read
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut secret_number = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "17c793d2f115d9d9e4cb0b79350abf98a1198f86e3c1b8de137ef5c8354ba7e5"`
[INFO] running `"docker" "rm" "-f" "17c793d2f115d9d9e4cb0b79350abf98a1198f86e3c1b8de137ef5c8354ba7e5"`
[INFO] [stdout] 17c793d2f115d9d9e4cb0b79350abf98a1198f86e3c1b8de137ef5c8354ba7e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/Minege/FindTheNumber:/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] 6ed6e9dd7e051011ee00b8e06c5056cd64f5e218b5140ca1b76d689950d35ff3
[INFO] running `"docker" "start" "-a" "6ed6e9dd7e051011ee00b8e06c5056cd64f5e218b5140ca1b76d689950d35ff3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guess_the_number-bc3c27aa429f0f2d
[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" "6ed6e9dd7e051011ee00b8e06c5056cd64f5e218b5140ca1b76d689950d35ff3"`
[INFO] running `"docker" "rm" "-f" "6ed6e9dd7e051011ee00b8e06c5056cd64f5e218b5140ca1b76d689950d35ff3"`
[INFO] [stdout] 6ed6e9dd7e051011ee00b8e06c5056cd64f5e218b5140ca1b76d689950d35ff3