[INFO] updating cached repository sector-f/prepend
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sector-f/prepend
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sector-f/prepend" "work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/prepend"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/prepend'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sector-f/prepend" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/prepend"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/prepend'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 97f905b50808d6898e961aeee054b3aedfd53735
[INFO] sha for GitHub repo sector-f/prepend: 97f905b50808d6898e961aeee054b3aedfd53735
[INFO] validating manifest of sector-f/prepend 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 sector-f/prepend 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 sector-f/prepend
[INFO] finished frobbing sector-f/prepend
[INFO] frobbed toml for sector-f/prepend written to work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/prepend/Cargo.toml
[INFO] started frobbing sector-f/prepend
[INFO] finished frobbing sector-f/prepend
[INFO] frobbed toml for sector-f/prepend written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/prepend/Cargo.toml
[INFO] crate sector-f/prepend 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] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/prepend/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[INFO] the lockfile is outdated, regenerating it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" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sector-f/prepend 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-4/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/sector-f/prepend:/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] 3281ef26abd77a35f2f4e82d9110431f836c3d9c82daaffd9f3f1fe1943e2f72
[INFO] running `"docker" "start" "-a" "3281ef26abd77a35f2f4e82d9110431f836c3d9c82daaffd9f3f1fe1943e2f72"`
[INFO] [stderr]    Compiling prepend v2.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "3281ef26abd77a35f2f4e82d9110431f836c3d9c82daaffd9f3f1fe1943e2f72"`
[INFO] running `"docker" "rm" "-f" "3281ef26abd77a35f2f4e82d9110431f836c3d9c82daaffd9f3f1fe1943e2f72"`
[INFO] [stdout] 3281ef26abd77a35f2f4e82d9110431f836c3d9c82daaffd9f3f1fe1943e2f72
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/sector-f/prepend:/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] b6eb9c70d883379a173dc4e8cbc5800cd96c7d499b17ed9f8e4b897a161dba7d
[INFO] running `"docker" "start" "-a" "b6eb9c70d883379a173dc4e8cbc5800cd96c7d499b17ed9f8e4b897a161dba7d"`
[INFO] [stderr]    Compiling prepend v2.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "b6eb9c70d883379a173dc4e8cbc5800cd96c7d499b17ed9f8e4b897a161dba7d"`
[INFO] running `"docker" "rm" "-f" "b6eb9c70d883379a173dc4e8cbc5800cd96c7d499b17ed9f8e4b897a161dba7d"`
[INFO] [stdout] b6eb9c70d883379a173dc4e8cbc5800cd96c7d499b17ed9f8e4b897a161dba7d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/sector-f/prepend:/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] 4cfb0aacf71fec9a25088d0e80433383688ec4b6008da81ad82119afad996a99
[INFO] running `"docker" "start" "-a" "4cfb0aacf71fec9a25088d0e80433383688ec4b6008da81ad82119afad996a99"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prepend-ccea6e9503a9580f
[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" "4cfb0aacf71fec9a25088d0e80433383688ec4b6008da81ad82119afad996a99"`
[INFO] running `"docker" "rm" "-f" "4cfb0aacf71fec9a25088d0e80433383688ec4b6008da81ad82119afad996a99"`
[INFO] [stdout] 4cfb0aacf71fec9a25088d0e80433383688ec4b6008da81ad82119afad996a99