[INFO] updating cached repository HankelBao/tree_sum
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HankelBao/tree_sum
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HankelBao/tree_sum" "work/ex/beta-1.37-6/sources/1.36.0/gh/HankelBao/tree_sum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/HankelBao/tree_sum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HankelBao/tree_sum" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HankelBao/tree_sum"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HankelBao/tree_sum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8992c2d7d99209cd69773b62a44244dfe3207e20
[INFO] sha for GitHub repo HankelBao/tree_sum: 8992c2d7d99209cd69773b62a44244dfe3207e20
[INFO] validating manifest of HankelBao/tree_sum 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 HankelBao/tree_sum 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 HankelBao/tree_sum
[INFO] finished frobbing HankelBao/tree_sum
[INFO] frobbed toml for HankelBao/tree_sum written to work/ex/beta-1.37-6/sources/1.36.0/gh/HankelBao/tree_sum/Cargo.toml
[INFO] started frobbing HankelBao/tree_sum
[INFO] finished frobbing HankelBao/tree_sum
[INFO] frobbed toml for HankelBao/tree_sum written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HankelBao/tree_sum/Cargo.toml
[INFO] crate HankelBao/tree_sum 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing HankelBao/tree_sum 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-3/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/HankelBao/tree_sum:/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] ff1ac6653a23264b0a544260e9c1eab39eb0fef4de41e5e1bf7913cb1678f52b
[INFO] running `"docker" "start" "-a" "ff1ac6653a23264b0a544260e9c1eab39eb0fef4de41e5e1bf7913cb1678f52b"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tree_sum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.31s
[INFO] running `"docker" "inspect" "ff1ac6653a23264b0a544260e9c1eab39eb0fef4de41e5e1bf7913cb1678f52b"`
[INFO] running `"docker" "rm" "-f" "ff1ac6653a23264b0a544260e9c1eab39eb0fef4de41e5e1bf7913cb1678f52b"`
[INFO] [stdout] ff1ac6653a23264b0a544260e9c1eab39eb0fef4de41e5e1bf7913cb1678f52b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/HankelBao/tree_sum:/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] 61a29680672fa7beb8a4ba897e1540d4116aa340544692acde7e1f2dc204eded
[INFO] running `"docker" "start" "-a" "61a29680672fa7beb8a4ba897e1540d4116aa340544692acde7e1f2dc204eded"`
[INFO] [stderr]    Compiling tree_sum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "61a29680672fa7beb8a4ba897e1540d4116aa340544692acde7e1f2dc204eded"`
[INFO] running `"docker" "rm" "-f" "61a29680672fa7beb8a4ba897e1540d4116aa340544692acde7e1f2dc204eded"`
[INFO] [stdout] 61a29680672fa7beb8a4ba897e1540d4116aa340544692acde7e1f2dc204eded
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/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/HankelBao/tree_sum:/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] 1981dceea65440c132480a8cabca737a0dd0ad5e22d8a23042f54928f873b1a2
[INFO] running `"docker" "start" "-a" "1981dceea65440c132480a8cabca737a0dd0ad5e22d8a23042f54928f873b1a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tree_sum-f55cfb877a784950
[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" "1981dceea65440c132480a8cabca737a0dd0ad5e22d8a23042f54928f873b1a2"`
[INFO] running `"docker" "rm" "-f" "1981dceea65440c132480a8cabca737a0dd0ad5e22d8a23042f54928f873b1a2"`
[INFO] [stdout] 1981dceea65440c132480a8cabca737a0dd0ad5e22d8a23042f54928f873b1a2