[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 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-1/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 92d5489367801dde77662b0f177cf75c3888f3b9717f23d5adb9f356214f729c
[INFO] running `"docker" "start" "-a" "92d5489367801dde77662b0f177cf75c3888f3b9717f23d5adb9f356214f729c"`
[INFO] [stderr]    Compiling letter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `"docker" "inspect" "92d5489367801dde77662b0f177cf75c3888f3b9717f23d5adb9f356214f729c"`
[INFO] running `"docker" "rm" "-f" "92d5489367801dde77662b0f177cf75c3888f3b9717f23d5adb9f356214f729c"`
[INFO] [stdout] 92d5489367801dde77662b0f177cf75c3888f3b9717f23d5adb9f356214f729c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] c55695a48bc55414110ea5d4d525a6e3ed7bcad4eb1e2c725876339977913a3f
[INFO] running `"docker" "start" "-a" "c55695a48bc55414110ea5d4d525a6e3ed7bcad4eb1e2c725876339977913a3f"`
[INFO] [stderr]    Compiling letter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "c55695a48bc55414110ea5d4d525a6e3ed7bcad4eb1e2c725876339977913a3f"`
[INFO] running `"docker" "rm" "-f" "c55695a48bc55414110ea5d4d525a6e3ed7bcad4eb1e2c725876339977913a3f"`
[INFO] [stdout] c55695a48bc55414110ea5d4d525a6e3ed7bcad4eb1e2c725876339977913a3f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 71206220487a50fecd537f32349ec0f250ce24ece536dd2fc36e85ae8e810cb1
[INFO] running `"docker" "start" "-a" "71206220487a50fecd537f32349ec0f250ce24ece536dd2fc36e85ae8e810cb1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/letter-14e645f3be0dd842
[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" "71206220487a50fecd537f32349ec0f250ce24ece536dd2fc36e85ae8e810cb1"`
[INFO] running `"docker" "rm" "-f" "71206220487a50fecd537f32349ec0f250ce24ece536dd2fc36e85ae8e810cb1"`
[INFO] [stdout] 71206220487a50fecd537f32349ec0f250ce24ece536dd2fc36e85ae8e810cb1