[INFO] updating cached repository StuartHa/binary_tree_printer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/StuartHa/binary_tree_printer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/StuartHa/binary_tree_printer" "work/ex/beta-1.38-1/sources/1.37.0/gh/StuartHa/binary_tree_printer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/StuartHa/binary_tree_printer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/StuartHa/binary_tree_printer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29f9b8dba13b0387919fa3aea846ceea7294d106
[INFO] sha for GitHub repo StuartHa/binary_tree_printer: 29f9b8dba13b0387919fa3aea846ceea7294d106
[INFO] validating manifest of StuartHa/binary_tree_printer 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 StuartHa/binary_tree_printer 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 StuartHa/binary_tree_printer
[INFO] finished frobbing StuartHa/binary_tree_printer
[INFO] frobbed toml for StuartHa/binary_tree_printer written to work/ex/beta-1.38-1/sources/1.37.0/gh/StuartHa/binary_tree_printer/Cargo.toml
[INFO] started frobbing StuartHa/binary_tree_printer
[INFO] finished frobbing StuartHa/binary_tree_printer
[INFO] frobbed toml for StuartHa/binary_tree_printer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer/Cargo.toml
[INFO] crate StuartHa/binary_tree_printer 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 StuartHa/binary_tree_printer against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 68ced972fb486eca5e0613298a9ccba81857d1837f9020473d577fe911d491fd
[INFO] running `"docker" "start" "-a" "68ced972fb486eca5e0613298a9ccba81857d1837f9020473d577fe911d491fd"`
[INFO] [stderr]    Compiling binary_tree_visualizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "68ced972fb486eca5e0613298a9ccba81857d1837f9020473d577fe911d491fd"`
[INFO] running `"docker" "rm" "-f" "68ced972fb486eca5e0613298a9ccba81857d1837f9020473d577fe911d491fd"`
[INFO] [stdout] 68ced972fb486eca5e0613298a9ccba81857d1837f9020473d577fe911d491fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f644ea436f3251a17ec4aa512773519e866a2aad0c8e6ca648742d393de97c21
[INFO] running `"docker" "start" "-a" "f644ea436f3251a17ec4aa512773519e866a2aad0c8e6ca648742d393de97c21"`
[INFO] [stderr]    Compiling binary_tree_visualizer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "f644ea436f3251a17ec4aa512773519e866a2aad0c8e6ca648742d393de97c21"`
[INFO] running `"docker" "rm" "-f" "f644ea436f3251a17ec4aa512773519e866a2aad0c8e6ca648742d393de97c21"`
[INFO] [stdout] f644ea436f3251a17ec4aa512773519e866a2aad0c8e6ca648742d393de97c21
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/StuartHa/binary_tree_printer:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b228e6afcbc15a384392eaac50be95260a31731b3b6894e059c319603b48f666
[INFO] running `"docker" "start" "-a" "b228e6afcbc15a384392eaac50be95260a31731b3b6894e059c319603b48f666"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/binary_tree_visualizer-7e282fa21356915f
[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] [stderr]      Running /opt/crater/target/debug/deps/binary_tree_visualizer-c13c15f14caccf92
[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] [stderr]    Doc-tests binary_tree_visualizer
[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" "b228e6afcbc15a384392eaac50be95260a31731b3b6894e059c319603b48f666"`
[INFO] running `"docker" "rm" "-f" "b228e6afcbc15a384392eaac50be95260a31731b3b6894e059c319603b48f666"`
[INFO] [stdout] b228e6afcbc15a384392eaac50be95260a31731b3b6894e059c319603b48f666