[INFO] updating cached repository jakelacey2012/learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jakelacey2012/learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jakelacey2012/learning-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/jakelacey2012/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jakelacey2012/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jakelacey2012/learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakelacey2012/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakelacey2012/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b70367caafe5a23e097bba2eced95506b9bfef50
[INFO] sha for GitHub repo jakelacey2012/learning-rust: b70367caafe5a23e097bba2eced95506b9bfef50
[INFO] validating manifest of jakelacey2012/learning-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 jakelacey2012/learning-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 jakelacey2012/learning-rust
[INFO] finished frobbing jakelacey2012/learning-rust
[INFO] frobbed toml for jakelacey2012/learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/jakelacey2012/learning-rust/Cargo.toml
[INFO] started frobbing jakelacey2012/learning-rust
[INFO] finished frobbing jakelacey2012/learning-rust
[INFO] frobbed toml for jakelacey2012/learning-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jakelacey2012/learning-rust/Cargo.toml
[INFO] crate jakelacey2012/learning-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 jakelacey2012/learning-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-0/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/jakelacey2012/learning-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] 105128012fcfdf683447370fd9b59b339ab63cbf9bf04c0413609d9cd04decf4
[INFO] running `"docker" "start" "-a" "105128012fcfdf683447370fd9b59b339ab63cbf9bf04c0413609d9cd04decf4"`
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "105128012fcfdf683447370fd9b59b339ab63cbf9bf04c0413609d9cd04decf4"`
[INFO] running `"docker" "rm" "-f" "105128012fcfdf683447370fd9b59b339ab63cbf9bf04c0413609d9cd04decf4"`
[INFO] [stdout] 105128012fcfdf683447370fd9b59b339ab63cbf9bf04c0413609d9cd04decf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/jakelacey2012/learning-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] 6b2e0d2272d7800e4f30180d81f141da6f4e30f49c9d621c56b11627f81a2b30
[INFO] running `"docker" "start" "-a" "6b2e0d2272d7800e4f30180d81f141da6f4e30f49c9d621c56b11627f81a2b30"`
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "6b2e0d2272d7800e4f30180d81f141da6f4e30f49c9d621c56b11627f81a2b30"`
[INFO] running `"docker" "rm" "-f" "6b2e0d2272d7800e4f30180d81f141da6f4e30f49c9d621c56b11627f81a2b30"`
[INFO] [stdout] 6b2e0d2272d7800e4f30180d81f141da6f4e30f49c9d621c56b11627f81a2b30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/jakelacey2012/learning-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] 3b2e0e20ea26a1c558dc99e7a6cc6c72289489e77f7d1b3c7f178f467ed3a16b
[INFO] running `"docker" "start" "-a" "3b2e0e20ea26a1c558dc99e7a6cc6c72289489e77f7d1b3c7f178f467ed3a16b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guess-4d06f07ba1dcadd3
[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" "3b2e0e20ea26a1c558dc99e7a6cc6c72289489e77f7d1b3c7f178f467ed3a16b"`
[INFO] running `"docker" "rm" "-f" "3b2e0e20ea26a1c558dc99e7a6cc6c72289489e77f7d1b3c7f178f467ed3a16b"`
[INFO] [stdout] 3b2e0e20ea26a1c558dc99e7a6cc6c72289489e77f7d1b3c7f178f467ed3a16b