[INFO] updating cached repository thesabbir/rguess
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thesabbir/rguess
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thesabbir/rguess" "work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thesabbir/rguess" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thesabbir/rguess"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thesabbir/rguess'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74b6e45362767a0db2da7efca0d840caf7aea948
[INFO] sha for GitHub repo thesabbir/rguess: 74b6e45362767a0db2da7efca0d840caf7aea948
[INFO] validating manifest of thesabbir/rguess 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 thesabbir/rguess 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 thesabbir/rguess
[INFO] finished frobbing thesabbir/rguess
[INFO] frobbed toml for thesabbir/rguess written to work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess/Cargo.toml
[INFO] started frobbing thesabbir/rguess
[INFO] finished frobbing thesabbir/rguess
[INFO] frobbed toml for thesabbir/rguess written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thesabbir/rguess/Cargo.toml
[INFO] crate thesabbir/rguess 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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 thesabbir/rguess 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess:/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] 8cae937c564410e0f2b00274f3060fb9fb4d47af178f655805102a3ee4560683
[INFO] running `"docker" "start" "-a" "8cae937c564410e0f2b00274f3060fb9fb4d47af178f655805102a3ee4560683"`
[INFO] [stderr]    Compiling reportr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "8cae937c564410e0f2b00274f3060fb9fb4d47af178f655805102a3ee4560683"`
[INFO] running `"docker" "rm" "-f" "8cae937c564410e0f2b00274f3060fb9fb4d47af178f655805102a3ee4560683"`
[INFO] [stdout] 8cae937c564410e0f2b00274f3060fb9fb4d47af178f655805102a3ee4560683
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess:/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] d314c7c528d063e5df8b8d637cad7de15077afeabcbc0b06927aa3210f5a5b9c
[INFO] running `"docker" "start" "-a" "d314c7c528d063e5df8b8d637cad7de15077afeabcbc0b06927aa3210f5a5b9c"`
[INFO] [stderr]    Compiling reportr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "d314c7c528d063e5df8b8d637cad7de15077afeabcbc0b06927aa3210f5a5b9c"`
[INFO] running `"docker" "rm" "-f" "d314c7c528d063e5df8b8d637cad7de15077afeabcbc0b06927aa3210f5a5b9c"`
[INFO] [stdout] d314c7c528d063e5df8b8d637cad7de15077afeabcbc0b06927aa3210f5a5b9c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thesabbir/rguess:/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] c52f72f5ae9dff45c108cb7713bf7856bd1f19c47910351925d4ccc9d53d2d7d
[INFO] running `"docker" "start" "-a" "c52f72f5ae9dff45c108cb7713bf7856bd1f19c47910351925d4ccc9d53d2d7d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reportr-16c739ec90a7ad07
[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" "c52f72f5ae9dff45c108cb7713bf7856bd1f19c47910351925d4ccc9d53d2d7d"`
[INFO] running `"docker" "rm" "-f" "c52f72f5ae9dff45c108cb7713bf7856bd1f19c47910351925d4ccc9d53d2d7d"`
[INFO] [stdout] c52f72f5ae9dff45c108cb7713bf7856bd1f19c47910351925d4ccc9d53d2d7d