[INFO] cloning repository DRL9/learn_rust
[INFO] running `"git" "clone" "--bare" "git://github.com/DRL9/learn_rust.git" "work/cache/sources/gh/DRL9/learn_rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/DRL9/learn_rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/DRL9/learn_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/DRL9/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/DRL9/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DRL9/learn_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 31c2b555608a01aec0460ced04f671d152e4275b
[INFO] sha for GitHub repo DRL9/learn_rust: 31c2b555608a01aec0460ced04f671d152e4275b
[INFO] validating manifest of DRL9/learn_rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DRL9/learn_rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing DRL9/learn_rust
[INFO] finished frobbing DRL9/learn_rust
[INFO] frobbed toml for DRL9/learn_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/DRL9/learn_rust/Cargo.toml
[INFO] started frobbing DRL9/learn_rust
[INFO] finished frobbing DRL9/learn_rust
[INFO] frobbed toml for DRL9/learn_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_rust/Cargo.toml
[INFO] crate DRL9/learn_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing DRL9/learn_rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] e6c9d08d084aaf64b199dafd7a522f1fcaf99d05efeec310c71a443378092867
[INFO] running `"docker" "start" "-a" "e6c9d08d084aaf64b199dafd7a522f1fcaf99d05efeec310c71a443378092867"`
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.33
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling ferris-says v0.1.1
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `"docker" "inspect" "e6c9d08d084aaf64b199dafd7a522f1fcaf99d05efeec310c71a443378092867"`
[INFO] running `"docker" "rm" "-f" "e6c9d08d084aaf64b199dafd7a522f1fcaf99d05efeec310c71a443378092867"`
[INFO] [stdout] e6c9d08d084aaf64b199dafd7a522f1fcaf99d05efeec310c71a443378092867
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 67d9dd2bb2e843dbb9f833c45c0fb6747383510505f1f1ee2240196a9246db58
[INFO] running `"docker" "start" "-a" "67d9dd2bb2e843dbb9f833c45c0fb6747383510505f1f1ee2240196a9246db58"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "67d9dd2bb2e843dbb9f833c45c0fb6747383510505f1f1ee2240196a9246db58"`
[INFO] running `"docker" "rm" "-f" "67d9dd2bb2e843dbb9f833c45c0fb6747383510505f1f1ee2240196a9246db58"`
[INFO] [stdout] 67d9dd2bb2e843dbb9f833c45c0fb6747383510505f1f1ee2240196a9246db58
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DRL9/learn_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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] f4782ef76ce6c29915c8ae586851023775b310b64e6d680b314e5f5a95a9202a
[INFO] running `"docker" "start" "-a" "f4782ef76ce6c29915c8ae586851023775b310b64e6d680b314e5f5a95a9202a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-36d776b73432152a
[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" "f4782ef76ce6c29915c8ae586851023775b310b64e6d680b314e5f5a95a9202a"`
[INFO] running `"docker" "rm" "-f" "f4782ef76ce6c29915c8ae586851023775b310b64e6d680b314e5f5a95a9202a"`
[INFO] [stdout] f4782ef76ce6c29915c8ae586851023775b310b64e6d680b314e5f5a95a9202a