[INFO] updating cached repository sombr/task-grep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sombr/task-grep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sombr/task-grep" "work/ex/beta-1.38-1/sources/1.37.0/gh/sombr/task-grep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sombr/task-grep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sombr/task-grep" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sombr/task-grep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sombr/task-grep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3341e487af7df70c918e8a7e0a4b437ddd322b3e
[INFO] sha for GitHub repo sombr/task-grep: 3341e487af7df70c918e8a7e0a4b437ddd322b3e
[INFO] validating manifest of sombr/task-grep 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 sombr/task-grep 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 sombr/task-grep
[INFO] finished frobbing sombr/task-grep
[INFO] frobbed toml for sombr/task-grep written to work/ex/beta-1.38-1/sources/1.37.0/gh/sombr/task-grep/Cargo.toml
[INFO] started frobbing sombr/task-grep
[INFO] finished frobbing sombr/task-grep
[INFO] frobbed toml for sombr/task-grep written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sombr/task-grep/Cargo.toml
[INFO] crate sombr/task-grep 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/sombr/task-grep/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[INFO] the lockfile is outdated, regenerating it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 sombr/task-grep 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/sombr/task-grep:/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] 924e94c4a618bb4c6a39b43bc5af053b723fdbcf9bf726188c5b5e59a1a1a3f7
[INFO] running `"docker" "start" "-a" "924e94c4a618bb4c6a39b43bc5af053b723fdbcf9bf726188c5b5e59a1a1a3f7"`
[INFO] [stderr]    Compiling lock-free-stack v0.1.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling tasks-framework v0.1.0
[INFO] [stderr]    Compiling task-grep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `"docker" "inspect" "924e94c4a618bb4c6a39b43bc5af053b723fdbcf9bf726188c5b5e59a1a1a3f7"`
[INFO] running `"docker" "rm" "-f" "924e94c4a618bb4c6a39b43bc5af053b723fdbcf9bf726188c5b5e59a1a1a3f7"`
[INFO] [stdout] 924e94c4a618bb4c6a39b43bc5af053b723fdbcf9bf726188c5b5e59a1a1a3f7
[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/sombr/task-grep:/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] b4857dd0cf2426fd38a279706a09c0bec8779241b43cfbe4d24cb7fe0fe9569f
[INFO] running `"docker" "start" "-a" "b4857dd0cf2426fd38a279706a09c0bec8779241b43cfbe4d24cb7fe0fe9569f"`
[INFO] [stderr]    Compiling task-grep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "b4857dd0cf2426fd38a279706a09c0bec8779241b43cfbe4d24cb7fe0fe9569f"`
[INFO] running `"docker" "rm" "-f" "b4857dd0cf2426fd38a279706a09c0bec8779241b43cfbe4d24cb7fe0fe9569f"`
[INFO] [stdout] b4857dd0cf2426fd38a279706a09c0bec8779241b43cfbe4d24cb7fe0fe9569f
[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/sombr/task-grep:/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] 0b92f2bd63692dcbb12c0f20cb844095baa3bf20a0b303b16961f3429eeba423
[INFO] running `"docker" "start" "-a" "0b92f2bd63692dcbb12c0f20cb844095baa3bf20a0b303b16961f3429eeba423"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/task_grep-c3ba3a633f861125
[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" "0b92f2bd63692dcbb12c0f20cb844095baa3bf20a0b303b16961f3429eeba423"`
[INFO] running `"docker" "rm" "-f" "0b92f2bd63692dcbb12c0f20cb844095baa3bf20a0b303b16961f3429eeba423"`
[INFO] [stdout] 0b92f2bd63692dcbb12c0f20cb844095baa3bf20a0b303b16961f3429eeba423