[INFO] updating cached repository vibhoothiiaanand/potato_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vibhoothiiaanand/potato_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vibhoothiiaanand/potato_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vibhoothiiaanand/potato_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vibhoothiiaanand/potato_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vibhoothiiaanand/potato_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9818784268bf6b4a2e6a9abd761464f156159e06
[INFO] sha for GitHub repo vibhoothiiaanand/potato_rust: 9818784268bf6b4a2e6a9abd761464f156159e06
[INFO] validating manifest of vibhoothiiaanand/potato_rust 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 vibhoothiiaanand/potato_rust 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 vibhoothiiaanand/potato_rust
[INFO] finished frobbing vibhoothiiaanand/potato_rust
[INFO] frobbed toml for vibhoothiiaanand/potato_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust/Cargo.toml
[INFO] started frobbing vibhoothiiaanand/potato_rust
[INFO] finished frobbing vibhoothiiaanand/potato_rust
[INFO] frobbed toml for vibhoothiiaanand/potato_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vibhoothiiaanand/potato_rust/Cargo.toml
[INFO] crate vibhoothiiaanand/potato_rust 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]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust/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[INFO] the lockfile is outdated, regenerating it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 vibhoothiiaanand/potato_rust 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust:/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] 335dd222d2a3c6fb5773b534e74fbc96b7e187fe43384d68cb094174e42650c6
[INFO] running `"docker" "start" "-a" "335dd222d2a3c6fb5773b534e74fbc96b7e187fe43384d68cb094174e42650c6"`
[INFO] [stderr]    Compiling potato_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "335dd222d2a3c6fb5773b534e74fbc96b7e187fe43384d68cb094174e42650c6"`
[INFO] running `"docker" "rm" "-f" "335dd222d2a3c6fb5773b534e74fbc96b7e187fe43384d68cb094174e42650c6"`
[INFO] [stdout] 335dd222d2a3c6fb5773b534e74fbc96b7e187fe43384d68cb094174e42650c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust:/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] 5418e6403957919e4c26e6155948d5dd9c972ab50627b9866b7a7ad8087d34af
[INFO] running `"docker" "start" "-a" "5418e6403957919e4c26e6155948d5dd9c972ab50627b9866b7a7ad8087d34af"`
[INFO] [stderr]    Compiling potato_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "5418e6403957919e4c26e6155948d5dd9c972ab50627b9866b7a7ad8087d34af"`
[INFO] running `"docker" "rm" "-f" "5418e6403957919e4c26e6155948d5dd9c972ab50627b9866b7a7ad8087d34af"`
[INFO] [stdout] 5418e6403957919e4c26e6155948d5dd9c972ab50627b9866b7a7ad8087d34af
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vibhoothiiaanand/potato_rust:/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] 0ea9da2ef4ad3015e2cf228cc5727f856be2af8d31e341077cceb8a7c83d0ca5
[INFO] running `"docker" "start" "-a" "0ea9da2ef4ad3015e2cf228cc5727f856be2af8d31e341077cceb8a7c83d0ca5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/potato_rust-f06f347451db7d10
[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" "0ea9da2ef4ad3015e2cf228cc5727f856be2af8d31e341077cceb8a7c83d0ca5"`
[INFO] running `"docker" "rm" "-f" "0ea9da2ef4ad3015e2cf228cc5727f856be2af8d31e341077cceb8a7c83d0ca5"`
[INFO] [stdout] 0ea9da2ef4ad3015e2cf228cc5727f856be2af8d31e341077cceb8a7c83d0ca5