[INFO] updating cached repository k-nasa/git-bch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/k-nasa/git-bch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/k-nasa/git-bch" "work/ex/beta-1.37-6/sources/1.36.0/gh/k-nasa/git-bch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/k-nasa/git-bch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/k-nasa/git-bch" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fe60df7e2242dd8fbbc480742a114b6008e596db
[INFO] sha for GitHub repo k-nasa/git-bch: fe60df7e2242dd8fbbc480742a114b6008e596db
[INFO] validating manifest of k-nasa/git-bch on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of k-nasa/git-bch on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing k-nasa/git-bch
[INFO] finished frobbing k-nasa/git-bch
[INFO] frobbed toml for k-nasa/git-bch written to work/ex/beta-1.37-6/sources/1.36.0/gh/k-nasa/git-bch/Cargo.toml
[INFO] started frobbing k-nasa/git-bch
[INFO] finished frobbing k-nasa/git-bch
[INFO] frobbed toml for k-nasa/git-bch written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch/Cargo.toml
[INFO] crate k-nasa/git-bch already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing k-nasa/git-bch against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 279c663671726e731f6fcdca7dbf37f8bbff6d961843af8bf9812e1f64828c4e
[INFO] running `"docker" "start" "-a" "279c663671726e731f6fcdca7dbf37f8bbff6d961843af8bf9812e1f64828c4e"`
[INFO] [stderr]    Compiling git-bch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `BranchTree`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct BranchTree {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BranchNode`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct BranchNode {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "279c663671726e731f6fcdca7dbf37f8bbff6d961843af8bf9812e1f64828c4e"`
[INFO] running `"docker" "rm" "-f" "279c663671726e731f6fcdca7dbf37f8bbff6d961843af8bf9812e1f64828c4e"`
[INFO] [stdout] 279c663671726e731f6fcdca7dbf37f8bbff6d961843af8bf9812e1f64828c4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 506ad41913d6ca37dc5fe7edad6ad1389ed3a6e1b8e884a756d71d7b8fa74c4e
[INFO] running `"docker" "start" "-a" "506ad41913d6ca37dc5fe7edad6ad1389ed3a6e1b8e884a756d71d7b8fa74c4e"`
[INFO] [stderr]    Compiling git-bch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `BranchTree`
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct BranchTree {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BranchNode`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct BranchNode {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "506ad41913d6ca37dc5fe7edad6ad1389ed3a6e1b8e884a756d71d7b8fa74c4e"`
[INFO] running `"docker" "rm" "-f" "506ad41913d6ca37dc5fe7edad6ad1389ed3a6e1b8e884a756d71d7b8fa74c4e"`
[INFO] [stdout] 506ad41913d6ca37dc5fe7edad6ad1389ed3a6e1b8e884a756d71d7b8fa74c4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/k-nasa/git-bch:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] bfea2b73eb5d0acef579eeb40877546cacd12fc4adc2601f2d15425e989c64da
[INFO] running `"docker" "start" "-a" "bfea2b73eb5d0acef579eeb40877546cacd12fc4adc2601f2d15425e989c64da"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_bch-4414482a6a619f0b
[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" "bfea2b73eb5d0acef579eeb40877546cacd12fc4adc2601f2d15425e989c64da"`
[INFO] running `"docker" "rm" "-f" "bfea2b73eb5d0acef579eeb40877546cacd12fc4adc2601f2d15425e989c64da"`
[INFO] [stdout] bfea2b73eb5d0acef579eeb40877546cacd12fc4adc2601f2d15425e989c64da