[INFO] updating cached repository WaltersDilemma/fibo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WaltersDilemma/fibo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WaltersDilemma/fibo" "work/ex/beta-1.38-1/sources/1.37.0/gh/WaltersDilemma/fibo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/WaltersDilemma/fibo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WaltersDilemma/fibo" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WaltersDilemma/fibo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WaltersDilemma/fibo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d1218275652cc86672d4501ff2992411a7e3bfab
[INFO] sha for GitHub repo WaltersDilemma/fibo: d1218275652cc86672d4501ff2992411a7e3bfab
[INFO] validating manifest of WaltersDilemma/fibo 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 WaltersDilemma/fibo 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 WaltersDilemma/fibo
[INFO] finished frobbing WaltersDilemma/fibo
[INFO] frobbed toml for WaltersDilemma/fibo written to work/ex/beta-1.38-1/sources/1.37.0/gh/WaltersDilemma/fibo/Cargo.toml
[INFO] started frobbing WaltersDilemma/fibo
[INFO] finished frobbing WaltersDilemma/fibo
[INFO] frobbed toml for WaltersDilemma/fibo written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WaltersDilemma/fibo/Cargo.toml
[INFO] crate WaltersDilemma/fibo 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 WaltersDilemma/fibo 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/WaltersDilemma/fibo:/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] 48a5d13ef0362228d63a46da7daa26bac7a8cff9460349c2258c621a29e1cc24
[INFO] running `"docker" "start" "-a" "48a5d13ef0362228d63a46da7daa26bac7a8cff9460349c2258c621a29e1cc24"`
[INFO] [stderr]    Compiling fibo v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "48a5d13ef0362228d63a46da7daa26bac7a8cff9460349c2258c621a29e1cc24"`
[INFO] running `"docker" "rm" "-f" "48a5d13ef0362228d63a46da7daa26bac7a8cff9460349c2258c621a29e1cc24"`
[INFO] [stdout] 48a5d13ef0362228d63a46da7daa26bac7a8cff9460349c2258c621a29e1cc24
[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/WaltersDilemma/fibo:/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] c637bdff62c046700e5b3e5023a786cef0d9557f94e6a23dbab780b052d03123
[INFO] running `"docker" "start" "-a" "c637bdff62c046700e5b3e5023a786cef0d9557f94e6a23dbab780b052d03123"`
[INFO] [stderr]    Compiling fibo v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "c637bdff62c046700e5b3e5023a786cef0d9557f94e6a23dbab780b052d03123"`
[INFO] running `"docker" "rm" "-f" "c637bdff62c046700e5b3e5023a786cef0d9557f94e6a23dbab780b052d03123"`
[INFO] [stdout] c637bdff62c046700e5b3e5023a786cef0d9557f94e6a23dbab780b052d03123
[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/WaltersDilemma/fibo:/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] 91b93bdfaef799443422f3e1dcbbc8308287d1fe262464fb04a38ea926ce9151
[INFO] running `"docker" "start" "-a" "91b93bdfaef799443422f3e1dcbbc8308287d1fe262464fb04a38ea926ce9151"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fibo-18ebcfec5c155ea8
[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" "91b93bdfaef799443422f3e1dcbbc8308287d1fe262464fb04a38ea926ce9151"`
[INFO] running `"docker" "rm" "-f" "91b93bdfaef799443422f3e1dcbbc8308287d1fe262464fb04a38ea926ce9151"`
[INFO] [stdout] 91b93bdfaef799443422f3e1dcbbc8308287d1fe262464fb04a38ea926ce9151