[INFO] updating cached repository thejainlabs/fibonacci-number-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thejainlabs/fibonacci-number-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thejainlabs/fibonacci-number-generator" "work/ex/beta-1.37-6/sources/1.36.0/gh/thejainlabs/fibonacci-number-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/thejainlabs/fibonacci-number-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thejainlabs/fibonacci-number-generator" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thejainlabs/fibonacci-number-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thejainlabs/fibonacci-number-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf0a890a9daf6dbf57dfefecd53fb1de6afec609
[INFO] sha for GitHub repo thejainlabs/fibonacci-number-generator: cf0a890a9daf6dbf57dfefecd53fb1de6afec609
[INFO] validating manifest of thejainlabs/fibonacci-number-generator 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 thejainlabs/fibonacci-number-generator 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 thejainlabs/fibonacci-number-generator
[INFO] finished frobbing thejainlabs/fibonacci-number-generator
[INFO] frobbed toml for thejainlabs/fibonacci-number-generator written to work/ex/beta-1.37-6/sources/1.36.0/gh/thejainlabs/fibonacci-number-generator/Cargo.toml
[INFO] started frobbing thejainlabs/fibonacci-number-generator
[INFO] finished frobbing thejainlabs/fibonacci-number-generator
[INFO] frobbed toml for thejainlabs/fibonacci-number-generator written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thejainlabs/fibonacci-number-generator/Cargo.toml
[INFO] crate thejainlabs/fibonacci-number-generator 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 thejainlabs/fibonacci-number-generator 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-7/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/thejainlabs/fibonacci-number-generator:/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] c4238b1fc365e0e3a8edb58b523e1f380369026639166e470e0582d4cdf67e5e
[INFO] running `"docker" "start" "-a" "c4238b1fc365e0e3a8edb58b523e1f380369026639166e470e0582d4cdf67e5e"`
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `temp` is never read
[INFO] [stderr]   --> src/main.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut temp = 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 0.36s
[INFO] running `"docker" "inspect" "c4238b1fc365e0e3a8edb58b523e1f380369026639166e470e0582d4cdf67e5e"`
[INFO] running `"docker" "rm" "-f" "c4238b1fc365e0e3a8edb58b523e1f380369026639166e470e0582d4cdf67e5e"`
[INFO] [stdout] c4238b1fc365e0e3a8edb58b523e1f380369026639166e470e0582d4cdf67e5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/thejainlabs/fibonacci-number-generator:/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] c486ffa28079d1e9bbcb0a8fbfbec8570db35e393c5d183056c1c67b6410c3bc
[INFO] running `"docker" "start" "-a" "c486ffa28079d1e9bbcb0a8fbfbec8570db35e393c5d183056c1c67b6410c3bc"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `temp` is never read
[INFO] [stderr]   --> src/main.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut temp = 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 0.41s
[INFO] running `"docker" "inspect" "c486ffa28079d1e9bbcb0a8fbfbec8570db35e393c5d183056c1c67b6410c3bc"`
[INFO] running `"docker" "rm" "-f" "c486ffa28079d1e9bbcb0a8fbfbec8570db35e393c5d183056c1c67b6410c3bc"`
[INFO] [stdout] c486ffa28079d1e9bbcb0a8fbfbec8570db35e393c5d183056c1c67b6410c3bc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/thejainlabs/fibonacci-number-generator:/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] e9f16279f36628b561fa535c2988eb02d6d9f5f3f62d614e59669eb714ac65bd
[INFO] running `"docker" "start" "-a" "e9f16279f36628b561fa535c2988eb02d6d9f5f3f62d614e59669eb714ac65bd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fibonacci-e1f382be7c918318
[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" "e9f16279f36628b561fa535c2988eb02d6d9f5f3f62d614e59669eb714ac65bd"`
[INFO] running `"docker" "rm" "-f" "e9f16279f36628b561fa535c2988eb02d6d9f5f3f62d614e59669eb714ac65bd"`
[INFO] [stdout] e9f16279f36628b561fa535c2988eb02d6d9f5f3f62d614e59669eb714ac65bd