[INFO] updating cached repository stillinbeta/rust_examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stillinbeta/rust_examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stillinbeta/rust_examples" "work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stillinbeta/rust_examples" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/rust_examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/rust_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 90dfcfd6394a780aa1fc81cb8fa6b2ed5e27a254
[INFO] sha for GitHub repo stillinbeta/rust_examples: 90dfcfd6394a780aa1fc81cb8fa6b2ed5e27a254
[INFO] validating manifest of stillinbeta/rust_examples 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 stillinbeta/rust_examples 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 stillinbeta/rust_examples
[INFO] finished frobbing stillinbeta/rust_examples
[INFO] frobbed toml for stillinbeta/rust_examples written to work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples/Cargo.toml
[INFO] started frobbing stillinbeta/rust_examples
[INFO] finished frobbing stillinbeta/rust_examples
[INFO] frobbed toml for stillinbeta/rust_examples written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/rust_examples/Cargo.toml
[INFO] crate stillinbeta/rust_examples 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 stillinbeta/rust_examples 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples:/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] af6d3e60c771169d58900acdc2e001e21e34f1b65b124bef24aa4190810df1d9
[INFO] running `"docker" "start" "-a" "af6d3e60c771169d58900acdc2e001e21e34f1b65b124bef24aa4190810df1d9"`
[INFO] [stderr]    Compiling fc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `"docker" "inspect" "af6d3e60c771169d58900acdc2e001e21e34f1b65b124bef24aa4190810df1d9"`
[INFO] running `"docker" "rm" "-f" "af6d3e60c771169d58900acdc2e001e21e34f1b65b124bef24aa4190810df1d9"`
[INFO] [stdout] af6d3e60c771169d58900acdc2e001e21e34f1b65b124bef24aa4190810df1d9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples:/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] 0d06c533e02bf705a20ef38e8b8c8498c28637758f812ddaa27ad5b159af5596
[INFO] running `"docker" "start" "-a" "0d06c533e02bf705a20ef38e8b8c8498c28637758f812ddaa27ad5b159af5596"`
[INFO] [stderr]    Compiling fc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "0d06c533e02bf705a20ef38e8b8c8498c28637758f812ddaa27ad5b159af5596"`
[INFO] running `"docker" "rm" "-f" "0d06c533e02bf705a20ef38e8b8c8498c28637758f812ddaa27ad5b159af5596"`
[INFO] [stdout] 0d06c533e02bf705a20ef38e8b8c8498c28637758f812ddaa27ad5b159af5596
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/rust_examples:/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] 10dcd7114534adb0dc7d8f3c236bc77324e967deabcc427727e960664129964d
[INFO] running `"docker" "start" "-a" "10dcd7114534adb0dc7d8f3c236bc77324e967deabcc427727e960664129964d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fc-21c07c4d5cc47dc4
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fc-6803207bde884c47
[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] [stdout] 
[INFO] [stderr]    Doc-tests fc
[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] [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" "10dcd7114534adb0dc7d8f3c236bc77324e967deabcc427727e960664129964d"`
[INFO] running `"docker" "rm" "-f" "10dcd7114534adb0dc7d8f3c236bc77324e967deabcc427727e960664129964d"`
[INFO] [stdout] 10dcd7114534adb0dc7d8f3c236bc77324e967deabcc427727e960664129964d