[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-1.37-6/sources/1.36.0/gh/WaltersDilemma/fibo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/WaltersDilemma/fibo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WaltersDilemma/fibo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/WaltersDilemma/fibo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of WaltersDilemma/fibo 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 WaltersDilemma/fibo
[INFO] finished frobbing WaltersDilemma/fibo
[INFO] frobbed toml for WaltersDilemma/fibo written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 WaltersDilemma/fibo 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-0/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/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 5872fbd95268075d3d91d07c2e29d7283745548b280b2549be3bdc861625a2e5
[INFO] running `"docker" "start" "-a" "5872fbd95268075d3d91d07c2e29d7283745548b280b2549be3bdc861625a2e5"`
[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 1.06s
[INFO] running `"docker" "inspect" "5872fbd95268075d3d91d07c2e29d7283745548b280b2549be3bdc861625a2e5"`
[INFO] running `"docker" "rm" "-f" "5872fbd95268075d3d91d07c2e29d7283745548b280b2549be3bdc861625a2e5"`
[INFO] [stdout] 5872fbd95268075d3d91d07c2e29d7283745548b280b2549be3bdc861625a2e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7d9748506eba9141066aa217275c6e10458cc210aca19d871b45e24f19f3bc11
[INFO] running `"docker" "start" "-a" "7d9748506eba9141066aa217275c6e10458cc210aca19d871b45e24f19f3bc11"`
[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 0.73s
[INFO] running `"docker" "inspect" "7d9748506eba9141066aa217275c6e10458cc210aca19d871b45e24f19f3bc11"`
[INFO] running `"docker" "rm" "-f" "7d9748506eba9141066aa217275c6e10458cc210aca19d871b45e24f19f3bc11"`
[INFO] [stdout] 7d9748506eba9141066aa217275c6e10458cc210aca19d871b45e24f19f3bc11
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5c46787cd65538b7a8f9b931a7337aaf9bdd1ddb6f09fabb1422890e897b32cf
[INFO] running `"docker" "start" "-a" "5c46787cd65538b7a8f9b931a7337aaf9bdd1ddb6f09fabb1422890e897b32cf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fibo-69640096922a1f42
[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" "5c46787cd65538b7a8f9b931a7337aaf9bdd1ddb6f09fabb1422890e897b32cf"`
[INFO] running `"docker" "rm" "-f" "5c46787cd65538b7a8f9b931a7337aaf9bdd1ddb6f09fabb1422890e897b32cf"`
[INFO] [stdout] 5c46787cd65538b7a8f9b931a7337aaf9bdd1ddb6f09fabb1422890e897b32cf