[INFO] updating cached repository SawyerHood/letter-boxed-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SawyerHood/letter-boxed-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SawyerHood/letter-boxed-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SawyerHood/letter-boxed-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SawyerHood/letter-boxed-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SawyerHood/letter-boxed-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 419b66571e7f801af72084f1d6d37ecbd31e56b3
[INFO] sha for GitHub repo SawyerHood/letter-boxed-rust: 419b66571e7f801af72084f1d6d37ecbd31e56b3
[INFO] validating manifest of SawyerHood/letter-boxed-rust 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 SawyerHood/letter-boxed-rust 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 SawyerHood/letter-boxed-rust
[INFO] finished frobbing SawyerHood/letter-boxed-rust
[INFO] frobbed toml for SawyerHood/letter-boxed-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust/Cargo.toml
[INFO] started frobbing SawyerHood/letter-boxed-rust
[INFO] finished frobbing SawyerHood/letter-boxed-rust
[INFO] frobbed toml for SawyerHood/letter-boxed-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SawyerHood/letter-boxed-rust/Cargo.toml
[INFO] crate SawyerHood/letter-boxed-rust 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 SawyerHood/letter-boxed-rust 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust:/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] 17f8afabd16119f373a63abd08e088bc55e11adc219c8ce79bad2383c0eb4510
[INFO] running `"docker" "start" "-a" "17f8afabd16119f373a63abd08e088bc55e11adc219c8ce79bad2383c0eb4510"`
[INFO] [stderr]    Compiling letter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `"docker" "inspect" "17f8afabd16119f373a63abd08e088bc55e11adc219c8ce79bad2383c0eb4510"`
[INFO] running `"docker" "rm" "-f" "17f8afabd16119f373a63abd08e088bc55e11adc219c8ce79bad2383c0eb4510"`
[INFO] [stdout] 17f8afabd16119f373a63abd08e088bc55e11adc219c8ce79bad2383c0eb4510
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust:/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] 5f83fda95c99feae98c2134eea87ef876376f4225d125174004ecb23bbfec82d
[INFO] running `"docker" "start" "-a" "5f83fda95c99feae98c2134eea87ef876376f4225d125174004ecb23bbfec82d"`
[INFO] [stderr]    Compiling letter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "5f83fda95c99feae98c2134eea87ef876376f4225d125174004ecb23bbfec82d"`
[INFO] running `"docker" "rm" "-f" "5f83fda95c99feae98c2134eea87ef876376f4225d125174004ecb23bbfec82d"`
[INFO] [stdout] 5f83fda95c99feae98c2134eea87ef876376f4225d125174004ecb23bbfec82d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SawyerHood/letter-boxed-rust:/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] 026e2bdbed7b8c776f4fd8e3c0ac5f4460e41bc0df3d8aaac5afe1018c7b8440
[INFO] running `"docker" "start" "-a" "026e2bdbed7b8c776f4fd8e3c0ac5f4460e41bc0df3d8aaac5afe1018c7b8440"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/letter-55b6d0c82f69d96b
[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" "026e2bdbed7b8c776f4fd8e3c0ac5f4460e41bc0df3d8aaac5afe1018c7b8440"`
[INFO] running `"docker" "rm" "-f" "026e2bdbed7b8c776f4fd8e3c0ac5f4460e41bc0df3d8aaac5afe1018c7b8440"`
[INFO] [stdout] 026e2bdbed7b8c776f4fd8e3c0ac5f4460e41bc0df3d8aaac5afe1018c7b8440