[INFO] updating cached repository devillies/rust_lang_project
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/devillies/rust_lang_project
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/devillies/rust_lang_project" "work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/devillies/rust_lang_project" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/devillies/rust_lang_project"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/devillies/rust_lang_project'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b1d7c5cc88c3e0d0ba948a67d7507852ef23015
[INFO] sha for GitHub repo devillies/rust_lang_project: 1b1d7c5cc88c3e0d0ba948a67d7507852ef23015
[INFO] validating manifest of devillies/rust_lang_project 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 devillies/rust_lang_project 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 devillies/rust_lang_project
[INFO] finished frobbing devillies/rust_lang_project
[INFO] frobbed toml for devillies/rust_lang_project written to work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project/Cargo.toml
[INFO] started frobbing devillies/rust_lang_project
[INFO] finished frobbing devillies/rust_lang_project
[INFO] frobbed toml for devillies/rust_lang_project written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/devillies/rust_lang_project/Cargo.toml
[INFO] crate devillies/rust_lang_project 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 devillies/rust_lang_project 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project:/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] 31f01a640eeda437639d95bc7da50077066d0b1b6686835434bb4d1408c8ee4a
[INFO] running `"docker" "start" "-a" "31f01a640eeda437639d95bc7da50077066d0b1b6686835434bb4d1408c8ee4a"`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "31f01a640eeda437639d95bc7da50077066d0b1b6686835434bb4d1408c8ee4a"`
[INFO] running `"docker" "rm" "-f" "31f01a640eeda437639d95bc7da50077066d0b1b6686835434bb4d1408c8ee4a"`
[INFO] [stdout] 31f01a640eeda437639d95bc7da50077066d0b1b6686835434bb4d1408c8ee4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project:/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] df964394a547f35a6d5951332849cc5c8c063d8b55835707c799db3f33ffe25e
[INFO] running `"docker" "start" "-a" "df964394a547f35a6d5951332849cc5c8c063d8b55835707c799db3f33ffe25e"`
[INFO] [stderr]    Compiling rust_project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "df964394a547f35a6d5951332849cc5c8c063d8b55835707c799db3f33ffe25e"`
[INFO] running `"docker" "rm" "-f" "df964394a547f35a6d5951332849cc5c8c063d8b55835707c799db3f33ffe25e"`
[INFO] [stdout] df964394a547f35a6d5951332849cc5c8c063d8b55835707c799db3f33ffe25e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/devillies/rust_lang_project:/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] e09b8b796060c589e5ab7d1582f2d47f6da51e6c29867b1342eda1456eaea41f
[INFO] running `"docker" "start" "-a" "e09b8b796060c589e5ab7d1582f2d47f6da51e6c29867b1342eda1456eaea41f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_project-2fe9d9eafddab083
[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" "e09b8b796060c589e5ab7d1582f2d47f6da51e6c29867b1342eda1456eaea41f"`
[INFO] running `"docker" "rm" "-f" "e09b8b796060c589e5ab7d1582f2d47f6da51e6c29867b1342eda1456eaea41f"`
[INFO] [stdout] e09b8b796060c589e5ab7d1582f2d47f6da51e6c29867b1342eda1456eaea41f