[INFO] updating cached repository dacox/rustchain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dacox/rustchain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dacox/rustchain" "work/ex/beta-1.38-1/sources/1.37.0/gh/dacox/rustchain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dacox/rustchain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dacox/rustchain" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dacox/rustchain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dacox/rustchain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf1414fb80cc6e087b6f031d8feec0dec7147e57
[INFO] sha for GitHub repo dacox/rustchain: cf1414fb80cc6e087b6f031d8feec0dec7147e57
[INFO] validating manifest of dacox/rustchain 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 dacox/rustchain 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 dacox/rustchain
[INFO] finished frobbing dacox/rustchain
[INFO] frobbed toml for dacox/rustchain written to work/ex/beta-1.38-1/sources/1.37.0/gh/dacox/rustchain/Cargo.toml
[INFO] started frobbing dacox/rustchain
[INFO] finished frobbing dacox/rustchain
[INFO] frobbed toml for dacox/rustchain written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dacox/rustchain/Cargo.toml
[INFO] crate dacox/rustchain 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/dacox/rustchain/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[INFO] the lockfile is outdated, regenerating it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 dacox/rustchain 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/dacox/rustchain:/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] c4c2f12e4c9e0e8c7c25339aec148cd2368c2f3532940296517f5c2f53f63d8c
[INFO] running `"docker" "start" "-a" "c4c2f12e4c9e0e8c7c25339aec148cd2368c2f3532940296517f5c2f53f63d8c"`
[INFO] [stderr]    Compiling rustchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "c4c2f12e4c9e0e8c7c25339aec148cd2368c2f3532940296517f5c2f53f63d8c"`
[INFO] running `"docker" "rm" "-f" "c4c2f12e4c9e0e8c7c25339aec148cd2368c2f3532940296517f5c2f53f63d8c"`
[INFO] [stdout] c4c2f12e4c9e0e8c7c25339aec148cd2368c2f3532940296517f5c2f53f63d8c
[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/dacox/rustchain:/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] f78a3193851da56e4385fe660e8441fa6facdd5408a4dcf8d97ba5213d6b3adb
[INFO] running `"docker" "start" "-a" "f78a3193851da56e4385fe660e8441fa6facdd5408a4dcf8d97ba5213d6b3adb"`
[INFO] [stderr]    Compiling rustchain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "f78a3193851da56e4385fe660e8441fa6facdd5408a4dcf8d97ba5213d6b3adb"`
[INFO] running `"docker" "rm" "-f" "f78a3193851da56e4385fe660e8441fa6facdd5408a4dcf8d97ba5213d6b3adb"`
[INFO] [stdout] f78a3193851da56e4385fe660e8441fa6facdd5408a4dcf8d97ba5213d6b3adb
[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/dacox/rustchain:/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] cd7796d6e648e5fde88bee91b202bbad8253109c462641c0bbec01d42a695832
[INFO] running `"docker" "start" "-a" "cd7796d6e648e5fde88bee91b202bbad8253109c462641c0bbec01d42a695832"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustchain-159ebb46f657cc5e
[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" "cd7796d6e648e5fde88bee91b202bbad8253109c462641c0bbec01d42a695832"`
[INFO] running `"docker" "rm" "-f" "cd7796d6e648e5fde88bee91b202bbad8253109c462641c0bbec01d42a695832"`
[INFO] [stdout] cd7796d6e648e5fde88bee91b202bbad8253109c462641c0bbec01d42a695832