[INFO] updating cached repository kgost/quick_sort
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kgost/quick_sort
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kgost/quick_sort" "work/ex/beta-1.38-1/sources/1.37.0/gh/kgost/quick_sort"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kgost/quick_sort'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kgost/quick_sort" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b7a3d6b7f8a8f2bd358e8fc361a9932e3b23029
[INFO] sha for GitHub repo kgost/quick_sort: 0b7a3d6b7f8a8f2bd358e8fc361a9932e3b23029
[INFO] validating manifest of kgost/quick_sort 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 kgost/quick_sort 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 kgost/quick_sort
[INFO] finished frobbing kgost/quick_sort
[INFO] frobbed toml for kgost/quick_sort written to work/ex/beta-1.38-1/sources/1.37.0/gh/kgost/quick_sort/Cargo.toml
[INFO] started frobbing kgost/quick_sort
[INFO] finished frobbing kgost/quick_sort
[INFO] frobbed toml for kgost/quick_sort written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort/Cargo.toml
[INFO] crate kgost/quick_sort 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 kgost/quick_sort against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8a6ad6f6c9835e5ba6df294be5c4c20ea055799429d7d019245a42cfe9c3f974
[INFO] running `"docker" "start" "-a" "8a6ad6f6c9835e5ba6df294be5c4c20ea055799429d7d019245a42cfe9c3f974"`
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling quick_sort v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..array_count {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     for i in 0..array_count {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "8a6ad6f6c9835e5ba6df294be5c4c20ea055799429d7d019245a42cfe9c3f974"`
[INFO] running `"docker" "rm" "-f" "8a6ad6f6c9835e5ba6df294be5c4c20ea055799429d7d019245a42cfe9c3f974"`
[INFO] [stdout] 8a6ad6f6c9835e5ba6df294be5c4c20ea055799429d7d019245a42cfe9c3f974
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 721b779dde1e0ddd3d71e833d32ffbfa352bc34db1ea6075ce598a07ebe318a0
[INFO] running `"docker" "start" "-a" "721b779dde1e0ddd3d71e833d32ffbfa352bc34db1ea6075ce598a07ebe318a0"`
[INFO] [stderr]    Compiling quick_sort v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..array_count {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     for i in 0..array_count {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "721b779dde1e0ddd3d71e833d32ffbfa352bc34db1ea6075ce598a07ebe318a0"`
[INFO] running `"docker" "rm" "-f" "721b779dde1e0ddd3d71e833d32ffbfa352bc34db1ea6075ce598a07ebe318a0"`
[INFO] [stdout] 721b779dde1e0ddd3d71e833d32ffbfa352bc34db1ea6075ce598a07ebe318a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgost/quick_sort:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 7901e6fdb8109d990c4dd44ccfb1c2c042516c93018ecf33fd78321492717012
[INFO] running `"docker" "start" "-a" "7901e6fdb8109d990c4dd44ccfb1c2c042516c93018ecf33fd78321492717012"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quick_sort-e8aa025a7ee999ab
[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" "7901e6fdb8109d990c4dd44ccfb1c2c042516c93018ecf33fd78321492717012"`
[INFO] running `"docker" "rm" "-f" "7901e6fdb8109d990c4dd44ccfb1c2c042516c93018ecf33fd78321492717012"`
[INFO] [stdout] 7901e6fdb8109d990c4dd44ccfb1c2c042516c93018ecf33fd78321492717012