[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-1.38-1/sources/1.37.0/gh/mstange/merge-dags"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mstange/merge-dags'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mstange/merge-dags" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mstange/merge-dags"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mstange/merge-dags 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 mstange/merge-dags
[INFO] finished frobbing mstange/merge-dags
[INFO] frobbed toml for mstange/merge-dags written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mstange/merge-dags 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] ef74c5bb94ebd3efe3b914531c47e964ab3259a5dd7b245d92aa145291574539
[INFO] running `"docker" "start" "-a" "ef74c5bb94ebd3efe3b914531c47e964ab3259a5dd7b245d92aa145291574539"`
[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-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 9.69s
[INFO] running `"docker" "inspect" "ef74c5bb94ebd3efe3b914531c47e964ab3259a5dd7b245d92aa145291574539"`
[INFO] running `"docker" "rm" "-f" "ef74c5bb94ebd3efe3b914531c47e964ab3259a5dd7b245d92aa145291574539"`
[INFO] [stdout] ef74c5bb94ebd3efe3b914531c47e964ab3259a5dd7b245d92aa145291574539
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] eea55caa58adacc35e2a4a0211e19089cb6f2d072376f017cd0e77fe13a6ebae
[INFO] running `"docker" "start" "-a" "eea55caa58adacc35e2a4a0211e19089cb6f2d072376f017cd0e77fe13a6ebae"`
[INFO] [stderr]    Compiling merge-dags v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `"docker" "inspect" "eea55caa58adacc35e2a4a0211e19089cb6f2d072376f017cd0e77fe13a6ebae"`
[INFO] running `"docker" "rm" "-f" "eea55caa58adacc35e2a4a0211e19089cb6f2d072376f017cd0e77fe13a6ebae"`
[INFO] [stdout] eea55caa58adacc35e2a4a0211e19089cb6f2d072376f017cd0e77fe13a6ebae
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 08fe78bc39b7f9081a22c80bacc96578000eb0a6a01edd2ba9ff6f8013588cd8
[INFO] running `"docker" "start" "-a" "08fe78bc39b7f9081a22c80bacc96578000eb0a6a01edd2ba9ff6f8013588cd8"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/merge_dags-c670b01416df23cb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests merge-dags
[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" "08fe78bc39b7f9081a22c80bacc96578000eb0a6a01edd2ba9ff6f8013588cd8"`
[INFO] running `"docker" "rm" "-f" "08fe78bc39b7f9081a22c80bacc96578000eb0a6a01edd2ba9ff6f8013588cd8"`
[INFO] [stdout] 08fe78bc39b7f9081a22c80bacc96578000eb0a6a01edd2ba9ff6f8013588cd8