[INFO] updating cached repository willmurphyscode/simple-rust-tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/willmurphyscode/simple-rust-tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/willmurphyscode/simple-rust-tree" "work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/willmurphyscode/simple-rust-tree" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/willmurphyscode/simple-rust-tree"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/willmurphyscode/simple-rust-tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9fed11bd29057459ead0b54458541ad1302e25c7
[INFO] sha for GitHub repo willmurphyscode/simple-rust-tree: 9fed11bd29057459ead0b54458541ad1302e25c7
[INFO] validating manifest of willmurphyscode/simple-rust-tree 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 willmurphyscode/simple-rust-tree 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 willmurphyscode/simple-rust-tree
[INFO] finished frobbing willmurphyscode/simple-rust-tree
[INFO] frobbed toml for willmurphyscode/simple-rust-tree written to work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree/Cargo.toml
[INFO] started frobbing willmurphyscode/simple-rust-tree
[INFO] finished frobbing willmurphyscode/simple-rust-tree
[INFO] frobbed toml for willmurphyscode/simple-rust-tree written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/willmurphyscode/simple-rust-tree/Cargo.toml
[INFO] crate willmurphyscode/simple-rust-tree 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 willmurphyscode/simple-rust-tree against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] e966b9d12cfa1910a5fed8736182238bccb2c5f01d8ef81aa05f002675748f53
[INFO] running `"docker" "start" "-a" "e966b9d12cfa1910a5fed8736182238bccb2c5f01d8ef81aa05f002675748f53"`
[INFO] [stderr]    Compiling libc v0.2.24
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling tree_walker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `"docker" "inspect" "e966b9d12cfa1910a5fed8736182238bccb2c5f01d8ef81aa05f002675748f53"`
[INFO] running `"docker" "rm" "-f" "e966b9d12cfa1910a5fed8736182238bccb2c5f01d8ef81aa05f002675748f53"`
[INFO] [stdout] e966b9d12cfa1910a5fed8736182238bccb2c5f01d8ef81aa05f002675748f53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d295448a96b81f781aa5acd7b8f60ed9638996296267a5efa7f5e8167ce800cf
[INFO] running `"docker" "start" "-a" "d295448a96b81f781aa5acd7b8f60ed9638996296267a5efa7f5e8167ce800cf"`
[INFO] [stderr]    Compiling tree_walker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "d295448a96b81f781aa5acd7b8f60ed9638996296267a5efa7f5e8167ce800cf"`
[INFO] running `"docker" "rm" "-f" "d295448a96b81f781aa5acd7b8f60ed9638996296267a5efa7f5e8167ce800cf"`
[INFO] [stdout] d295448a96b81f781aa5acd7b8f60ed9638996296267a5efa7f5e8167ce800cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/willmurphyscode/simple-rust-tree:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] abdea33e95130e0ac71937ad365a7a6a8fdf9a3b0ad637391f29e6a8d5ad9641
[INFO] running `"docker" "start" "-a" "abdea33e95130e0ac71937ad365a7a6a8fdf9a3b0ad637391f29e6a8d5ad9641"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tree_walker-25b7377d1203bb81
[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" "abdea33e95130e0ac71937ad365a7a6a8fdf9a3b0ad637391f29e6a8d5ad9641"`
[INFO] running `"docker" "rm" "-f" "abdea33e95130e0ac71937ad365a7a6a8fdf9a3b0ad637391f29e6a8d5ad9641"`
[INFO] [stdout] abdea33e95130e0ac71937ad365a7a6a8fdf9a3b0ad637391f29e6a8d5ad9641