[INFO] updating cached repository Ramzec/union-find
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ramzec/union-find
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ramzec/union-find" "work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ramzec/union-find" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ramzec/union-find"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ramzec/union-find'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1f1587062f90cf1c634c312f4073099babd30dd0
[INFO] sha for GitHub repo Ramzec/union-find: 1f1587062f90cf1c634c312f4073099babd30dd0
[INFO] validating manifest of Ramzec/union-find 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 Ramzec/union-find 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 Ramzec/union-find
[INFO] finished frobbing Ramzec/union-find
[INFO] frobbed toml for Ramzec/union-find written to work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find/Cargo.toml
[INFO] started frobbing Ramzec/union-find
[INFO] finished frobbing Ramzec/union-find
[INFO] frobbed toml for Ramzec/union-find written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Ramzec/union-find/Cargo.toml
[INFO] crate Ramzec/union-find 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 Ramzec/union-find 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find:/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] 5edb75d85b77e4584b3878d3e3184cb35df9939c839b6108a4f52f3be6fc2eea
[INFO] running `"docker" "start" "-a" "5edb75d85b77e4584b3878d3e3184cb35df9939c839b6108a4f52f3be6fc2eea"`
[INFO] [stderr]    Compiling union-find v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "5edb75d85b77e4584b3878d3e3184cb35df9939c839b6108a4f52f3be6fc2eea"`
[INFO] running `"docker" "rm" "-f" "5edb75d85b77e4584b3878d3e3184cb35df9939c839b6108a4f52f3be6fc2eea"`
[INFO] [stdout] 5edb75d85b77e4584b3878d3e3184cb35df9939c839b6108a4f52f3be6fc2eea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find:/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] bc7f7640c9638164423509f2e872adb5960b6f5466857e8bed4ee2a30722fdf7
[INFO] running `"docker" "start" "-a" "bc7f7640c9638164423509f2e872adb5960b6f5466857e8bed4ee2a30722fdf7"`
[INFO] [stderr]    Compiling union-find v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "bc7f7640c9638164423509f2e872adb5960b6f5466857e8bed4ee2a30722fdf7"`
[INFO] running `"docker" "rm" "-f" "bc7f7640c9638164423509f2e872adb5960b6f5466857e8bed4ee2a30722fdf7"`
[INFO] [stdout] bc7f7640c9638164423509f2e872adb5960b6f5466857e8bed4ee2a30722fdf7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Ramzec/union-find:/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] ea2d194cb81e22815fe1dfcf6a2b4bf853152200fc13c81bdd04ad9f5b9cc0a2
[INFO] running `"docker" "start" "-a" "ea2d194cb81e22815fe1dfcf6a2b4bf853152200fc13c81bdd04ad9f5b9cc0a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/union_find-00966d921f344cfe
[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" "ea2d194cb81e22815fe1dfcf6a2b4bf853152200fc13c81bdd04ad9f5b9cc0a2"`
[INFO] running `"docker" "rm" "-f" "ea2d194cb81e22815fe1dfcf6a2b4bf853152200fc13c81bdd04ad9f5b9cc0a2"`
[INFO] [stdout] ea2d194cb81e22815fe1dfcf6a2b4bf853152200fc13c81bdd04ad9f5b9cc0a2