[INFO] updating cached repository mstange/merge-dags
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mstange/merge-dags
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mstange/merge-dags" "work/ex/beta-1.37-6/sources/1.36.0/gh/mstange/merge-dags"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mstange/merge-dags'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mstange/merge-dags" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mstange/merge-dags"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mstange/merge-dags'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ab5626cdda1412d1833c8a6d5c08a57ee90ab230
[INFO] sha for GitHub repo mstange/merge-dags: ab5626cdda1412d1833c8a6d5c08a57ee90ab230
[INFO] validating manifest of mstange/merge-dags 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 mstange/merge-dags 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 mstange/merge-dags
[INFO] finished frobbing mstange/merge-dags
[INFO] frobbed toml for mstange/merge-dags written to work/ex/beta-1.37-6/sources/1.36.0/gh/mstange/merge-dags/Cargo.toml
[INFO] started frobbing mstange/merge-dags
[INFO] finished frobbing mstange/merge-dags
[INFO] frobbed toml for mstange/merge-dags written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mstange/merge-dags/Cargo.toml
[INFO] crate mstange/merge-dags 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 mstange/merge-dags 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-1/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/mstange/merge-dags:/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] 22c21f10b9eeb393edaba9b51ec8f53e8ded29d4ebd700c5cc14a96e2f9fbafc
[INFO] running `"docker" "start" "-a" "22c21f10b9eeb393edaba9b51ec8f53e8ded29d4ebd700c5cc14a96e2f9fbafc"`
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling euclid v0.17.2
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling merge-dags v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.73s
[INFO] running `"docker" "inspect" "22c21f10b9eeb393edaba9b51ec8f53e8ded29d4ebd700c5cc14a96e2f9fbafc"`
[INFO] running `"docker" "rm" "-f" "22c21f10b9eeb393edaba9b51ec8f53e8ded29d4ebd700c5cc14a96e2f9fbafc"`
[INFO] [stdout] 22c21f10b9eeb393edaba9b51ec8f53e8ded29d4ebd700c5cc14a96e2f9fbafc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mstange/merge-dags:/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] fd02ea7bec986eaaf1961a99caa91fc4b4d03d0ea899c46f0211deee6ec9c86f
[INFO] running `"docker" "start" "-a" "fd02ea7bec986eaaf1961a99caa91fc4b4d03d0ea899c46f0211deee6ec9c86f"`
[INFO] [stderr]    Compiling merge-dags v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `"docker" "inspect" "fd02ea7bec986eaaf1961a99caa91fc4b4d03d0ea899c46f0211deee6ec9c86f"`
[INFO] running `"docker" "rm" "-f" "fd02ea7bec986eaaf1961a99caa91fc4b4d03d0ea899c46f0211deee6ec9c86f"`
[INFO] [stdout] fd02ea7bec986eaaf1961a99caa91fc4b4d03d0ea899c46f0211deee6ec9c86f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mstange/merge-dags:/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] 9e0ab8283fb1fa2c1c3dc80ee84ddb7269dc54caff92dbdafa7b32b0ecea62e2
[INFO] running `"docker" "start" "-a" "9e0ab8283fb1fa2c1c3dc80ee84ddb7269dc54caff92dbdafa7b32b0ecea62e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/merge_dags-4a83dbef9842081d
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests merge-dags
[INFO] [stdout] test tests::insert_between_pancakes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "9e0ab8283fb1fa2c1c3dc80ee84ddb7269dc54caff92dbdafa7b32b0ecea62e2"`
[INFO] running `"docker" "rm" "-f" "9e0ab8283fb1fa2c1c3dc80ee84ddb7269dc54caff92dbdafa7b32b0ecea62e2"`
[INFO] [stdout] 9e0ab8283fb1fa2c1c3dc80ee84ddb7269dc54caff92dbdafa7b32b0ecea62e2