[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-1.38-1/sources/1.37.0/gh/thejainlabs/fibonacci-number-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/thejainlabs/fibonacci-number-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thejainlabs/fibonacci-number-generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thejainlabs/fibonacci-number-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of thejainlabs/fibonacci-number-generator on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing thejainlabs/fibonacci-number-generator against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 911b9b3ed1197d7d2b6c30f7a1b4977848c980f3499b93f8fb1480bc0f207156
[INFO] running `"docker" "start" "-a" "911b9b3ed1197d7d2b6c30f7a1b4977848c980f3499b93f8fb1480bc0f207156"`
[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" "911b9b3ed1197d7d2b6c30f7a1b4977848c980f3499b93f8fb1480bc0f207156"`
[INFO] running `"docker" "rm" "-f" "911b9b3ed1197d7d2b6c30f7a1b4977848c980f3499b93f8fb1480bc0f207156"`
[INFO] [stdout] 911b9b3ed1197d7d2b6c30f7a1b4977848c980f3499b93f8fb1480bc0f207156
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1e89637938e4a9d5f1ddd1cd7be84d70845f7b453e275170a0d83706767d5596
[INFO] running `"docker" "start" "-a" "1e89637938e4a9d5f1ddd1cd7be84d70845f7b453e275170a0d83706767d5596"`
[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 0.40s
[INFO] running `"docker" "inspect" "1e89637938e4a9d5f1ddd1cd7be84d70845f7b453e275170a0d83706767d5596"`
[INFO] running `"docker" "rm" "-f" "1e89637938e4a9d5f1ddd1cd7be84d70845f7b453e275170a0d83706767d5596"`
[INFO] [stdout] 1e89637938e4a9d5f1ddd1cd7be84d70845f7b453e275170a0d83706767d5596
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e00bc2c5f0e9f79ee1fcca12c26d8cb6fb7c575964d88e55abf731f3bc8967e4
[INFO] running `"docker" "start" "-a" "e00bc2c5f0e9f79ee1fcca12c26d8cb6fb7c575964d88e55abf731f3bc8967e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fibonacci-19bbea4c069f7f17
[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" "e00bc2c5f0e9f79ee1fcca12c26d8cb6fb7c575964d88e55abf731f3bc8967e4"`
[INFO] running `"docker" "rm" "-f" "e00bc2c5f0e9f79ee1fcca12c26d8cb6fb7c575964d88e55abf731f3bc8967e4"`
[INFO] [stdout] e00bc2c5f0e9f79ee1fcca12c26d8cb6fb7c575964d88e55abf731f3bc8967e4