[INFO] updating cached repository SteveBirtles/rust_for_polyglots
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SteveBirtles/rust_for_polyglots
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SteveBirtles/rust_for_polyglots" "work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SteveBirtles/rust_for_polyglots" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SteveBirtles/rust_for_polyglots"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SteveBirtles/rust_for_polyglots'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1dfc720c5b211fb49bc60e106ab8daace0a10d11
[INFO] sha for GitHub repo SteveBirtles/rust_for_polyglots: 1dfc720c5b211fb49bc60e106ab8daace0a10d11
[INFO] validating manifest of SteveBirtles/rust_for_polyglots 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 SteveBirtles/rust_for_polyglots 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 SteveBirtles/rust_for_polyglots
[INFO] finished frobbing SteveBirtles/rust_for_polyglots
[INFO] frobbed toml for SteveBirtles/rust_for_polyglots written to work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots/Cargo.toml
[INFO] started frobbing SteveBirtles/rust_for_polyglots
[INFO] finished frobbing SteveBirtles/rust_for_polyglots
[INFO] frobbed toml for SteveBirtles/rust_for_polyglots written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SteveBirtles/rust_for_polyglots/Cargo.toml
[INFO] crate SteveBirtles/rust_for_polyglots 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] testing SteveBirtles/rust_for_polyglots 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots:/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] 23fde9fb77fd32d25212930603dc22555b688ed0fc3a5c7175a6edc441e82efc
[INFO] running `"docker" "start" "-a" "23fde9fb77fd32d25212930603dc22555b688ed0fc3a5c7175a6edc441e82efc"`
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "23fde9fb77fd32d25212930603dc22555b688ed0fc3a5c7175a6edc441e82efc"`
[INFO] running `"docker" "rm" "-f" "23fde9fb77fd32d25212930603dc22555b688ed0fc3a5c7175a6edc441e82efc"`
[INFO] [stdout] 23fde9fb77fd32d25212930603dc22555b688ed0fc3a5c7175a6edc441e82efc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots:/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] 2499bc089f2b780ab9db51506899a684091de8b3f19b4cea743fad1a8aa28928
[INFO] running `"docker" "start" "-a" "2499bc089f2b780ab9db51506899a684091de8b3f19b4cea743fad1a8aa28928"`
[INFO] [stderr]    Compiling rust_for_polyglots v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "2499bc089f2b780ab9db51506899a684091de8b3f19b4cea743fad1a8aa28928"`
[INFO] running `"docker" "rm" "-f" "2499bc089f2b780ab9db51506899a684091de8b3f19b4cea743fad1a8aa28928"`
[INFO] [stdout] 2499bc089f2b780ab9db51506899a684091de8b3f19b4cea743fad1a8aa28928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SteveBirtles/rust_for_polyglots:/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] 0ce589ffc68a52ea6ef17fc8ded4a13a375fa99ae7f6ba1404c78474472821a8
[INFO] running `"docker" "start" "-a" "0ce589ffc68a52ea6ef17fc8ded4a13a375fa99ae7f6ba1404c78474472821a8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_for_polyglots-a6ab99b24cd6bc7d
[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" "0ce589ffc68a52ea6ef17fc8ded4a13a375fa99ae7f6ba1404c78474472821a8"`
[INFO] running `"docker" "rm" "-f" "0ce589ffc68a52ea6ef17fc8ded4a13a375fa99ae7f6ba1404c78474472821a8"`
[INFO] [stdout] 0ce589ffc68a52ea6ef17fc8ded4a13a375fa99ae7f6ba1404c78474472821a8