[INFO] updating cached repository kooparse/coding_problems
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kooparse/coding_problems
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kooparse/coding_problems" "work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kooparse/coding_problems" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kooparse/coding_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kooparse/coding_problems'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 19401df9cd92fec15231b368cd08e7473595ffd0
[INFO] sha for GitHub repo kooparse/coding_problems: 19401df9cd92fec15231b368cd08e7473595ffd0
[INFO] validating manifest of kooparse/coding_problems 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 kooparse/coding_problems 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 kooparse/coding_problems
[INFO] finished frobbing kooparse/coding_problems
[INFO] frobbed toml for kooparse/coding_problems written to work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems/Cargo.toml
[INFO] started frobbing kooparse/coding_problems
[INFO] finished frobbing kooparse/coding_problems
[INFO] frobbed toml for kooparse/coding_problems written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kooparse/coding_problems/Cargo.toml
[INFO] crate kooparse/coding_problems 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 kooparse/coding_problems 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems:/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] 6f0e9f4bfbbff4e35925e4dfdc76a628b0e868a68f46b2bffdb6a78bfbdbafc6
[INFO] running `"docker" "start" "-a" "6f0e9f4bfbbff4e35925e4dfdc76a628b0e868a68f46b2bffdb6a78bfbdbafc6"`
[INFO] [stderr]    Compiling coding_interview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "6f0e9f4bfbbff4e35925e4dfdc76a628b0e868a68f46b2bffdb6a78bfbdbafc6"`
[INFO] running `"docker" "rm" "-f" "6f0e9f4bfbbff4e35925e4dfdc76a628b0e868a68f46b2bffdb6a78bfbdbafc6"`
[INFO] [stdout] 6f0e9f4bfbbff4e35925e4dfdc76a628b0e868a68f46b2bffdb6a78bfbdbafc6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems:/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] 544994ee634257baea63cc8b1f53fc84fed5c0905d9e4c8d53e625154f33d2b7
[INFO] running `"docker" "start" "-a" "544994ee634257baea63cc8b1f53fc84fed5c0905d9e4c8d53e625154f33d2b7"`
[INFO] [stderr]    Compiling coding_interview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "544994ee634257baea63cc8b1f53fc84fed5c0905d9e4c8d53e625154f33d2b7"`
[INFO] running `"docker" "rm" "-f" "544994ee634257baea63cc8b1f53fc84fed5c0905d9e4c8d53e625154f33d2b7"`
[INFO] [stdout] 544994ee634257baea63cc8b1f53fc84fed5c0905d9e4c8d53e625154f33d2b7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kooparse/coding_problems:/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] c564586b840f3a250a0d1cc03403fd8cdcc59bbb5cd0cc15c84f891fd1980691
[INFO] running `"docker" "start" "-a" "c564586b840f3a250a0d1cc03403fd8cdcc59bbb5cd0cc15c84f891fd1980691"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/coding_interview-5a869fe4cdce0283
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test google_serializer::tests::serializer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests coding_interview
[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" "c564586b840f3a250a0d1cc03403fd8cdcc59bbb5cd0cc15c84f891fd1980691"`
[INFO] running `"docker" "rm" "-f" "c564586b840f3a250a0d1cc03403fd8cdcc59bbb5cd0cc15c84f891fd1980691"`
[INFO] [stdout] c564586b840f3a250a0d1cc03403fd8cdcc59bbb5cd0cc15c84f891fd1980691