[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 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b66eddde1e8fb323de933d34cde18a5173b82f0ad494ec5354ea5438a6f3808b
[INFO] running `"docker" "start" "-a" "b66eddde1e8fb323de933d34cde18a5173b82f0ad494ec5354ea5438a6f3808b"`
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "b66eddde1e8fb323de933d34cde18a5173b82f0ad494ec5354ea5438a6f3808b"`
[INFO] running `"docker" "rm" "-f" "b66eddde1e8fb323de933d34cde18a5173b82f0ad494ec5354ea5438a6f3808b"`
[INFO] [stdout] b66eddde1e8fb323de933d34cde18a5173b82f0ad494ec5354ea5438a6f3808b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9a237e1016f531b2fca56eb5aa20dbe2b76bade0327f44790660740d2f226ddf
[INFO] running `"docker" "start" "-a" "9a237e1016f531b2fca56eb5aa20dbe2b76bade0327f44790660740d2f226ddf"`
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "9a237e1016f531b2fca56eb5aa20dbe2b76bade0327f44790660740d2f226ddf"`
[INFO] running `"docker" "rm" "-f" "9a237e1016f531b2fca56eb5aa20dbe2b76bade0327f44790660740d2f226ddf"`
[INFO] [stdout] 9a237e1016f531b2fca56eb5aa20dbe2b76bade0327f44790660740d2f226ddf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 1861186df4fcbecb23ff8174fa2b7141a1866d8197a1728f5f9f63bae9d66ad2
[INFO] running `"docker" "start" "-a" "1861186df4fcbecb23ff8174fa2b7141a1866d8197a1728f5f9f63bae9d66ad2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guess-c9f43e98885e96bf
[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" "1861186df4fcbecb23ff8174fa2b7141a1866d8197a1728f5f9f63bae9d66ad2"`
[INFO] running `"docker" "rm" "-f" "1861186df4fcbecb23ff8174fa2b7141a1866d8197a1728f5f9f63bae9d66ad2"`
[INFO] [stdout] 1861186df4fcbecb23ff8174fa2b7141a1866d8197a1728f5f9f63bae9d66ad2