[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 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 10c431dc72175321aff2a255f5750893a19135269b017e86a427ca8e7ea56e03
[INFO] running `"docker" "start" "-a" "10c431dc72175321aff2a255f5750893a19135269b017e86a427ca8e7ea56e03"`
[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 0.85s
[INFO] running `"docker" "inspect" "10c431dc72175321aff2a255f5750893a19135269b017e86a427ca8e7ea56e03"`
[INFO] running `"docker" "rm" "-f" "10c431dc72175321aff2a255f5750893a19135269b017e86a427ca8e7ea56e03"`
[INFO] [stdout] 10c431dc72175321aff2a255f5750893a19135269b017e86a427ca8e7ea56e03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3f1eb11916649fcb0b3c581ae1cffebcf9f78294828bb5a5d193871a207b841a
[INFO] running `"docker" "start" "-a" "3f1eb11916649fcb0b3c581ae1cffebcf9f78294828bb5a5d193871a207b841a"`
[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 0.65s
[INFO] running `"docker" "inspect" "3f1eb11916649fcb0b3c581ae1cffebcf9f78294828bb5a5d193871a207b841a"`
[INFO] running `"docker" "rm" "-f" "3f1eb11916649fcb0b3c581ae1cffebcf9f78294828bb5a5d193871a207b841a"`
[INFO] [stdout] 3f1eb11916649fcb0b3c581ae1cffebcf9f78294828bb5a5d193871a207b841a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 07c7d45b621d053aff5381045f59698ea186ba3ec7f997303e0ab354d0833dd9
[INFO] running `"docker" "start" "-a" "07c7d45b621d053aff5381045f59698ea186ba3ec7f997303e0ab354d0833dd9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-03084a90e557edb8
[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" "07c7d45b621d053aff5381045f59698ea186ba3ec7f997303e0ab354d0833dd9"`
[INFO] running `"docker" "rm" "-f" "07c7d45b621d053aff5381045f59698ea186ba3ec7f997303e0ab354d0833dd9"`
[INFO] [stdout] 07c7d45b621d053aff5381045f59698ea186ba3ec7f997303e0ab354d0833dd9