[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 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9efd9f5ef928157c8dde3bed10f4aafaabf2fd30057497a7e3a3a40422d205d3
[INFO] running `"docker" "start" "-a" "9efd9f5ef928157c8dde3bed10f4aafaabf2fd30057497a7e3a3a40422d205d3"`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[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 5.75s
[INFO] running `"docker" "inspect" "9efd9f5ef928157c8dde3bed10f4aafaabf2fd30057497a7e3a3a40422d205d3"`
[INFO] running `"docker" "rm" "-f" "9efd9f5ef928157c8dde3bed10f4aafaabf2fd30057497a7e3a3a40422d205d3"`
[INFO] [stdout] 9efd9f5ef928157c8dde3bed10f4aafaabf2fd30057497a7e3a3a40422d205d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f910e8e7987b14fd5ed065f98dee96ab4cb820de4c21b5a2cb7bea1fb2db0501
[INFO] running `"docker" "start" "-a" "f910e8e7987b14fd5ed065f98dee96ab4cb820de4c21b5a2cb7bea1fb2db0501"`
[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 0.79s
[INFO] running `"docker" "inspect" "f910e8e7987b14fd5ed065f98dee96ab4cb820de4c21b5a2cb7bea1fb2db0501"`
[INFO] running `"docker" "rm" "-f" "f910e8e7987b14fd5ed065f98dee96ab4cb820de4c21b5a2cb7bea1fb2db0501"`
[INFO] [stdout] f910e8e7987b14fd5ed065f98dee96ab4cb820de4c21b5a2cb7bea1fb2db0501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d664a466a37cf2abbb05634d5ca4a4f28947a95e4fd56bcbeda43e11ee4839f2
[INFO] running `"docker" "start" "-a" "d664a466a37cf2abbb05634d5ca4a4f28947a95e4fd56bcbeda43e11ee4839f2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rugit-43d6a403839af506
[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" "d664a466a37cf2abbb05634d5ca4a4f28947a95e4fd56bcbeda43e11ee4839f2"`
[INFO] running `"docker" "rm" "-f" "d664a466a37cf2abbb05634d5ca4a4f28947a95e4fd56bcbeda43e11ee4839f2"`
[INFO] [stdout] d664a466a37cf2abbb05634d5ca4a4f28947a95e4fd56bcbeda43e11ee4839f2