[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-1.37-6/sources/1.36.0/gh/kooparse/coding_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kooparse/coding_problems'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kooparse/coding_problems" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kooparse/coding_problems"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kooparse/coding_problems on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kooparse/coding_problems against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4bb057ebd0397fbaed8f7ee46d335ddd0b123f3797e2604cd52cb2f4b53eca53
[INFO] running `"docker" "start" "-a" "4bb057ebd0397fbaed8f7ee46d335ddd0b123f3797e2604cd52cb2f4b53eca53"`
[INFO] [stderr]    Compiling coding_interview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "4bb057ebd0397fbaed8f7ee46d335ddd0b123f3797e2604cd52cb2f4b53eca53"`
[INFO] running `"docker" "rm" "-f" "4bb057ebd0397fbaed8f7ee46d335ddd0b123f3797e2604cd52cb2f4b53eca53"`
[INFO] [stdout] 4bb057ebd0397fbaed8f7ee46d335ddd0b123f3797e2604cd52cb2f4b53eca53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 42c8ca0cfd505bc98848a601bd2d3ba0ece2d4c60179794c6ef36410323ef103
[INFO] running `"docker" "start" "-a" "42c8ca0cfd505bc98848a601bd2d3ba0ece2d4c60179794c6ef36410323ef103"`
[INFO] [stderr]    Compiling coding_interview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "42c8ca0cfd505bc98848a601bd2d3ba0ece2d4c60179794c6ef36410323ef103"`
[INFO] running `"docker" "rm" "-f" "42c8ca0cfd505bc98848a601bd2d3ba0ece2d4c60179794c6ef36410323ef103"`
[INFO] [stdout] 42c8ca0cfd505bc98848a601bd2d3ba0ece2d4c60179794c6ef36410323ef103
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] abd63ac2cc5bce2ed8a999b9fc3cacf1d8d57a4f20bfc5ece238f31967aca34c
[INFO] running `"docker" "start" "-a" "abd63ac2cc5bce2ed8a999b9fc3cacf1d8d57a4f20bfc5ece238f31967aca34c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/coding_interview-26658e0703d2eef8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test google_serializer::tests::serializer ... ok
[INFO] [stderr]    Doc-tests coding_interview
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "abd63ac2cc5bce2ed8a999b9fc3cacf1d8d57a4f20bfc5ece238f31967aca34c"`
[INFO] running `"docker" "rm" "-f" "abd63ac2cc5bce2ed8a999b9fc3cacf1d8d57a4f20bfc5ece238f31967aca34c"`
[INFO] [stdout] abd63ac2cc5bce2ed8a999b9fc3cacf1d8d57a4f20bfc5ece238f31967aca34c