[INFO] updating cached repository lukekrikorian/lottery
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lukekrikorian/lottery
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lukekrikorian/lottery" "work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lukekrikorian/lottery" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lukekrikorian/lottery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lukekrikorian/lottery'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f8eef9233a67ff12326e18c3202b5aaef2eda28a
[INFO] sha for GitHub repo lukekrikorian/lottery: f8eef9233a67ff12326e18c3202b5aaef2eda28a
[INFO] validating manifest of lukekrikorian/lottery 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 lukekrikorian/lottery 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 lukekrikorian/lottery
[INFO] finished frobbing lukekrikorian/lottery
[INFO] frobbed toml for lukekrikorian/lottery written to work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery/Cargo.toml
[INFO] started frobbing lukekrikorian/lottery
[INFO] finished frobbing lukekrikorian/lottery
[INFO] frobbed toml for lukekrikorian/lottery written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lukekrikorian/lottery/Cargo.toml
[INFO] crate lukekrikorian/lottery 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 lukekrikorian/lottery against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] f2812541270b524e3a8feb6e4ace5d56bf1687c2cffa607b64a7a15d67e1563a
[INFO] running `"docker" "start" "-a" "f2812541270b524e3a8feb6e4ace5d56bf1687c2cffa607b64a7a15d67e1563a"`
[INFO] [stderr]    Compiling rand v0.6.0
[INFO] [stderr]    Compiling lotto v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut index = i as usize;
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `"docker" "inspect" "f2812541270b524e3a8feb6e4ace5d56bf1687c2cffa607b64a7a15d67e1563a"`
[INFO] running `"docker" "rm" "-f" "f2812541270b524e3a8feb6e4ace5d56bf1687c2cffa607b64a7a15d67e1563a"`
[INFO] [stdout] f2812541270b524e3a8feb6e4ace5d56bf1687c2cffa607b64a7a15d67e1563a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3679a77666137ce2aac815321ad6be8708eca47985ee00638ca6d3921e059e5c
[INFO] running `"docker" "start" "-a" "3679a77666137ce2aac815321ad6be8708eca47985ee00638ca6d3921e059e5c"`
[INFO] [stderr]    Compiling lotto v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 let mut index = i as usize;
[INFO] [stderr]    |                     ----^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "3679a77666137ce2aac815321ad6be8708eca47985ee00638ca6d3921e059e5c"`
[INFO] running `"docker" "rm" "-f" "3679a77666137ce2aac815321ad6be8708eca47985ee00638ca6d3921e059e5c"`
[INFO] [stdout] 3679a77666137ce2aac815321ad6be8708eca47985ee00638ca6d3921e059e5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lukekrikorian/lottery:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 8113bb8c7828bfc1ac02e6309e05705a9fc16e83d9b649f1727d0e99011dd2fd
[INFO] running `"docker" "start" "-a" "8113bb8c7828bfc1ac02e6309e05705a9fc16e83d9b649f1727d0e99011dd2fd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lotto-952fa56a6e6b0f2c
[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" "8113bb8c7828bfc1ac02e6309e05705a9fc16e83d9b649f1727d0e99011dd2fd"`
[INFO] running `"docker" "rm" "-f" "8113bb8c7828bfc1ac02e6309e05705a9fc16e83d9b649f1727d0e99011dd2fd"`
[INFO] [stdout] 8113bb8c7828bfc1ac02e6309e05705a9fc16e83d9b649f1727d0e99011dd2fd