[INFO] updating cached repository potatofarmersally/BubbleSortInRust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/potatofarmersally/BubbleSortInRust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/potatofarmersally/BubbleSortInRust" "work/ex/beta-1.38-1/sources/1.37.0/gh/potatofarmersally/BubbleSortInRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/potatofarmersally/BubbleSortInRust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/potatofarmersally/BubbleSortInRust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/potatofarmersally/BubbleSortInRust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/potatofarmersally/BubbleSortInRust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f26517dc3d1778fc8ed7d1bda884ed8c556a3c7f
[INFO] sha for GitHub repo potatofarmersally/BubbleSortInRust: f26517dc3d1778fc8ed7d1bda884ed8c556a3c7f
[INFO] validating manifest of potatofarmersally/BubbleSortInRust 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 potatofarmersally/BubbleSortInRust 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 potatofarmersally/BubbleSortInRust
[INFO] finished frobbing potatofarmersally/BubbleSortInRust
[INFO] frobbed toml for potatofarmersally/BubbleSortInRust written to work/ex/beta-1.38-1/sources/1.37.0/gh/potatofarmersally/BubbleSortInRust/Cargo.toml
[INFO] started frobbing potatofarmersally/BubbleSortInRust
[INFO] finished frobbing potatofarmersally/BubbleSortInRust
[INFO] frobbed toml for potatofarmersally/BubbleSortInRust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/potatofarmersally/BubbleSortInRust/Cargo.toml
[INFO] crate potatofarmersally/BubbleSortInRust 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 potatofarmersally/BubbleSortInRust 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-4/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/potatofarmersally/BubbleSortInRust:/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] 81b403c624b088669445b98747ad15e0993e25f8c373e273953ea37dfe551ff5
[INFO] running `"docker" "start" "-a" "81b403c624b088669445b98747ad15e0993e25f8c373e273953ea37dfe551ff5"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "81b403c624b088669445b98747ad15e0993e25f8c373e273953ea37dfe551ff5"`
[INFO] running `"docker" "rm" "-f" "81b403c624b088669445b98747ad15e0993e25f8c373e273953ea37dfe551ff5"`
[INFO] [stdout] 81b403c624b088669445b98747ad15e0993e25f8c373e273953ea37dfe551ff5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/potatofarmersally/BubbleSortInRust:/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] 105fc689e9f61d9be96072bc2ad8140ed490b7b1e9c7710f0c3a83dfbfaba262
[INFO] running `"docker" "start" "-a" "105fc689e9f61d9be96072bc2ad8140ed490b7b1e9c7710f0c3a83dfbfaba262"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "105fc689e9f61d9be96072bc2ad8140ed490b7b1e9c7710f0c3a83dfbfaba262"`
[INFO] running `"docker" "rm" "-f" "105fc689e9f61d9be96072bc2ad8140ed490b7b1e9c7710f0c3a83dfbfaba262"`
[INFO] [stdout] 105fc689e9f61d9be96072bc2ad8140ed490b7b1e9c7710f0c3a83dfbfaba262
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/potatofarmersally/BubbleSortInRust:/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] 3851f12de406d117107fbf157b39e8d1fa6d56204b0813c3d0fba84ca6086dd9
[INFO] running `"docker" "start" "-a" "3851f12de406d117107fbf157b39e8d1fa6d56204b0813c3d0fba84ca6086dd9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-07b0c184d61c811d
[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" "3851f12de406d117107fbf157b39e8d1fa6d56204b0813c3d0fba84ca6086dd9"`
[INFO] running `"docker" "rm" "-f" "3851f12de406d117107fbf157b39e8d1fa6d56204b0813c3d0fba84ca6086dd9"`
[INFO] [stdout] 3851f12de406d117107fbf157b39e8d1fa6d56204b0813c3d0fba84ca6086dd9