[INFO] updating cached repository wismer/rugit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wismer/rugit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wismer/rugit" "work/ex/beta-1.38-1/sources/1.37.0/gh/wismer/rugit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wismer/rugit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wismer/rugit" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wismer/rugit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wismer/rugit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bcefcf74a34d8baed4fba1840e67f3918e36ad4e
[INFO] sha for GitHub repo wismer/rugit: bcefcf74a34d8baed4fba1840e67f3918e36ad4e
[INFO] validating manifest of wismer/rugit 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 wismer/rugit 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 wismer/rugit
[INFO] finished frobbing wismer/rugit
[INFO] frobbed toml for wismer/rugit written to work/ex/beta-1.38-1/sources/1.37.0/gh/wismer/rugit/Cargo.toml
[INFO] started frobbing wismer/rugit
[INFO] finished frobbing wismer/rugit
[INFO] frobbed toml for wismer/rugit written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wismer/rugit/Cargo.toml
[INFO] crate wismer/rugit 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 wismer/rugit 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-6/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/wismer/rugit:/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] 581486f14fc0d1c27815589ff41ea37023a2983102b82c56da16352599b23f1b
[INFO] running `"docker" "start" "-a" "581486f14fc0d1c27815589ff41ea37023a2983102b82c56da16352599b23f1b"`
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling rugit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `files`
[INFO] [stderr]   --> src/rugit/mod.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "581486f14fc0d1c27815589ff41ea37023a2983102b82c56da16352599b23f1b"`
[INFO] running `"docker" "rm" "-f" "581486f14fc0d1c27815589ff41ea37023a2983102b82c56da16352599b23f1b"`
[INFO] [stdout] 581486f14fc0d1c27815589ff41ea37023a2983102b82c56da16352599b23f1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/wismer/rugit:/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] 4b5a7d190a91731c539272c458bbae2f8b659a6ef9cf61e7cda7f75ed761e351
[INFO] running `"docker" "start" "-a" "4b5a7d190a91731c539272c458bbae2f8b659a6ef9cf61e7cda7f75ed761e351"`
[INFO] [stderr]    Compiling rugit v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `files`
[INFO] [stderr]   --> src/rugit/mod.rs:50:3
[INFO] [stderr]    |
[INFO] [stderr] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "4b5a7d190a91731c539272c458bbae2f8b659a6ef9cf61e7cda7f75ed761e351"`
[INFO] running `"docker" "rm" "-f" "4b5a7d190a91731c539272c458bbae2f8b659a6ef9cf61e7cda7f75ed761e351"`
[INFO] [stdout] 4b5a7d190a91731c539272c458bbae2f8b659a6ef9cf61e7cda7f75ed761e351
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/wismer/rugit:/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] 313dd9b70ffcb66cc26c7e24cdd380dc026b88df6365ebddd0dc10c2370072d2
[INFO] running `"docker" "start" "-a" "313dd9b70ffcb66cc26c7e24cdd380dc026b88df6365ebddd0dc10c2370072d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rugit-7d27105ea2c9869b
[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" "313dd9b70ffcb66cc26c7e24cdd380dc026b88df6365ebddd0dc10c2370072d2"`
[INFO] running `"docker" "rm" "-f" "313dd9b70ffcb66cc26c7e24cdd380dc026b88df6365ebddd0dc10c2370072d2"`
[INFO] [stdout] 313dd9b70ffcb66cc26c7e24cdd380dc026b88df6365ebddd0dc10c2370072d2