[INFO] updating cached repository gallowstree/dancing-letters
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gallowstree/dancing-letters
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gallowstree/dancing-letters" "work/ex/beta-1.38-1/sources/1.37.0/gh/gallowstree/dancing-letters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gallowstree/dancing-letters'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gallowstree/dancing-letters" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gallowstree/dancing-letters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gallowstree/dancing-letters'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 02b98e2defcebafece1de4290fe7c2894863b629
[INFO] sha for GitHub repo gallowstree/dancing-letters: 02b98e2defcebafece1de4290fe7c2894863b629
[INFO] validating manifest of gallowstree/dancing-letters 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 gallowstree/dancing-letters 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 gallowstree/dancing-letters
[INFO] finished frobbing gallowstree/dancing-letters
[INFO] frobbed toml for gallowstree/dancing-letters written to work/ex/beta-1.38-1/sources/1.37.0/gh/gallowstree/dancing-letters/Cargo.toml
[INFO] started frobbing gallowstree/dancing-letters
[INFO] finished frobbing gallowstree/dancing-letters
[INFO] frobbed toml for gallowstree/dancing-letters written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gallowstree/dancing-letters/Cargo.toml
[INFO] crate gallowstree/dancing-letters 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 gallowstree/dancing-letters 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/gallowstree/dancing-letters:/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] 40def9e44eb79f80128a1e30f2bf2eb114ba488309643d7962eb2e1dde8f5320
[INFO] running `"docker" "start" "-a" "40def9e44eb79f80128a1e30f2bf2eb114ba488309643d7962eb2e1dde8f5320"`
[INFO] [stderr]    Compiling dancing-letters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "40def9e44eb79f80128a1e30f2bf2eb114ba488309643d7962eb2e1dde8f5320"`
[INFO] running `"docker" "rm" "-f" "40def9e44eb79f80128a1e30f2bf2eb114ba488309643d7962eb2e1dde8f5320"`
[INFO] [stdout] 40def9e44eb79f80128a1e30f2bf2eb114ba488309643d7962eb2e1dde8f5320
[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/gallowstree/dancing-letters:/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] 83c4bf23efd33dd6f02e004d0b3c9a94ce0bf1031fde0258766bb9ee30f6c544
[INFO] running `"docker" "start" "-a" "83c4bf23efd33dd6f02e004d0b3c9a94ce0bf1031fde0258766bb9ee30f6c544"`
[INFO] [stderr]    Compiling dancing-letters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "83c4bf23efd33dd6f02e004d0b3c9a94ce0bf1031fde0258766bb9ee30f6c544"`
[INFO] running `"docker" "rm" "-f" "83c4bf23efd33dd6f02e004d0b3c9a94ce0bf1031fde0258766bb9ee30f6c544"`
[INFO] [stdout] 83c4bf23efd33dd6f02e004d0b3c9a94ce0bf1031fde0258766bb9ee30f6c544
[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/gallowstree/dancing-letters:/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] cfd31ff3e5e6c252adfa505334b835c4db5d34f1ffabdba58301586a7452aa31
[INFO] running `"docker" "start" "-a" "cfd31ff3e5e6c252adfa505334b835c4db5d34f1ffabdba58301586a7452aa31"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dancing_letters-2ce9ff2a87d8ef0f
[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" "cfd31ff3e5e6c252adfa505334b835c4db5d34f1ffabdba58301586a7452aa31"`
[INFO] running `"docker" "rm" "-f" "cfd31ff3e5e6c252adfa505334b835c4db5d34f1ffabdba58301586a7452aa31"`
[INFO] [stdout] cfd31ff3e5e6c252adfa505334b835c4db5d34f1ffabdba58301586a7452aa31