[INFO] updating cached repository yberreby/benchmarks
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yberreby/benchmarks
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yberreby/benchmarks" "work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yberreby/benchmarks" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yberreby/benchmarks"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yberreby/benchmarks'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2815509e178888da003eeab674c296fa9d17b791
[INFO] sha for GitHub repo yberreby/benchmarks: 2815509e178888da003eeab674c296fa9d17b791
[INFO] validating manifest of yberreby/benchmarks 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 yberreby/benchmarks 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 yberreby/benchmarks
[INFO] finished frobbing yberreby/benchmarks
[INFO] frobbed toml for yberreby/benchmarks written to work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks/Cargo.toml
[INFO] started frobbing yberreby/benchmarks
[INFO] finished frobbing yberreby/benchmarks
[INFO] frobbed toml for yberreby/benchmarks written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yberreby/benchmarks/Cargo.toml
[INFO] crate yberreby/benchmarks 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] [stderr]     Blocking waiting for file lock on package cache
[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 yberreby/benchmarks 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks:/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] 3adb6862fc37a0c20b5ee357548db273d4e096a3cf22356bdf0c090593da4289
[INFO] running `"docker" "start" "-a" "3adb6862fc37a0c20b5ee357548db273d4e096a3cf22356bdf0c090593da4289"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] running `"docker" "inspect" "3adb6862fc37a0c20b5ee357548db273d4e096a3cf22356bdf0c090593da4289"`
[INFO] running `"docker" "rm" "-f" "3adb6862fc37a0c20b5ee357548db273d4e096a3cf22356bdf0c090593da4289"`
[INFO] [stdout] 3adb6862fc37a0c20b5ee357548db273d4e096a3cf22356bdf0c090593da4289
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks:/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] 925ff737d5f221b20f0fc17175bf3ec4251428d325deaa6be9c8bf4d9bd59a07
[INFO] running `"docker" "start" "-a" "925ff737d5f221b20f0fc17175bf3ec4251428d325deaa6be9c8bf4d9bd59a07"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] running `"docker" "inspect" "925ff737d5f221b20f0fc17175bf3ec4251428d325deaa6be9c8bf4d9bd59a07"`
[INFO] running `"docker" "rm" "-f" "925ff737d5f221b20f0fc17175bf3ec4251428d325deaa6be9c8bf4d9bd59a07"`
[INFO] [stdout] 925ff737d5f221b20f0fc17175bf3ec4251428d325deaa6be9c8bf4d9bd59a07
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/yberreby/benchmarks:/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] 58504551f134a168e8b8ed562945483a88e4307416c16f2d99a0071a0420f6fb
[INFO] running `"docker" "start" "-a" "58504551f134a168e8b8ed562945483a88e4307416c16f2d99a0071a0420f6fb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `"docker" "inspect" "58504551f134a168e8b8ed562945483a88e4307416c16f2d99a0071a0420f6fb"`
[INFO] running `"docker" "rm" "-f" "58504551f134a168e8b8ed562945483a88e4307416c16f2d99a0071a0420f6fb"`
[INFO] [stdout] 58504551f134a168e8b8ed562945483a88e4307416c16f2d99a0071a0420f6fb