[INFO] updating cached repository nu-rust-course/bench2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nu-rust-course/bench2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nu-rust-course/bench2" "work/ex/beta-1.37-6/sources/1.36.0/gh/nu-rust-course/bench2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nu-rust-course/bench2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nu-rust-course/bench2" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nu-rust-course/bench2"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nu-rust-course/bench2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 742b9998bb3aa65879ebc048799aa0fa35503438
[INFO] sha for GitHub repo nu-rust-course/bench2: 742b9998bb3aa65879ebc048799aa0fa35503438
[INFO] validating manifest of nu-rust-course/bench2 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 nu-rust-course/bench2 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 nu-rust-course/bench2
[INFO] finished frobbing nu-rust-course/bench2
[INFO] frobbed toml for nu-rust-course/bench2 written to work/ex/beta-1.37-6/sources/1.36.0/gh/nu-rust-course/bench2/Cargo.toml
[INFO] started frobbing nu-rust-course/bench2
[INFO] finished frobbing nu-rust-course/bench2
[INFO] frobbed toml for nu-rust-course/bench2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nu-rust-course/bench2/Cargo.toml
[INFO] crate nu-rust-course/bench2 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 nu-rust-course/bench2 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-4/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/nu-rust-course/bench2:/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] 877a270037470ca2d103851affd1a91182ec6a7b91f2b85e47f2c2f5f3cc96d6
[INFO] running `"docker" "start" "-a" "877a270037470ca2d103851affd1a91182ec6a7b91f2b85e47f2c2f5f3cc96d6"`
[INFO] [stderr]    Compiling bench2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "877a270037470ca2d103851affd1a91182ec6a7b91f2b85e47f2c2f5f3cc96d6"`
[INFO] running `"docker" "rm" "-f" "877a270037470ca2d103851affd1a91182ec6a7b91f2b85e47f2c2f5f3cc96d6"`
[INFO] [stdout] 877a270037470ca2d103851affd1a91182ec6a7b91f2b85e47f2c2f5f3cc96d6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/nu-rust-course/bench2:/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] 88eed515b6f6f0e94e45356de0dee76014b952d8ece4539c3b1d0a25cda81300
[INFO] running `"docker" "start" "-a" "88eed515b6f6f0e94e45356de0dee76014b952d8ece4539c3b1d0a25cda81300"`
[INFO] [stderr]    Compiling bench2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "88eed515b6f6f0e94e45356de0dee76014b952d8ece4539c3b1d0a25cda81300"`
[INFO] running `"docker" "rm" "-f" "88eed515b6f6f0e94e45356de0dee76014b952d8ece4539c3b1d0a25cda81300"`
[INFO] [stdout] 88eed515b6f6f0e94e45356de0dee76014b952d8ece4539c3b1d0a25cda81300
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/nu-rust-course/bench2:/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] 45770582e3338d73acfae604e3354d14827fa9ddeb36142befdc0984c83dd5cb
[INFO] running `"docker" "start" "-a" "45770582e3338d73acfae604e3354d14827fa9ddeb36142befdc0984c83dd5cb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bench2-c24bbb8046b014e1
[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" "45770582e3338d73acfae604e3354d14827fa9ddeb36142befdc0984c83dd5cb"`
[INFO] running `"docker" "rm" "-f" "45770582e3338d73acfae604e3354d14827fa9ddeb36142befdc0984c83dd5cb"`
[INFO] [stdout] 45770582e3338d73acfae604e3354d14827fa9ddeb36142befdc0984c83dd5cb