[INFO] updating cached repository YZY74224/learning_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/YZY74224/learning_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/YZY74224/learning_rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/YZY74224/learning_rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/YZY74224/learning_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/YZY74224/learning_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d8ebf5311954bee4972dd9abb67d48073a42576a
[INFO] sha for GitHub repo YZY74224/learning_rust: d8ebf5311954bee4972dd9abb67d48073a42576a
[INFO] validating manifest of YZY74224/learning_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 YZY74224/learning_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 YZY74224/learning_rust
[INFO] finished frobbing YZY74224/learning_rust
[INFO] frobbed toml for YZY74224/learning_rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/learning_rust/Cargo.toml
[INFO] started frobbing YZY74224/learning_rust
[INFO] finished frobbing YZY74224/learning_rust
[INFO] frobbed toml for YZY74224/learning_rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/YZY74224/learning_rust/Cargo.toml
[INFO] crate YZY74224/learning_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 YZY74224/learning_rust against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 871bec74507a1c21336832b698f77cec5121f187e3ea434ffc25dd500ca4f58f
[INFO] running `"docker" "start" "-a" "871bec74507a1c21336832b698f77cec5121f187e3ea434ffc25dd500ca4f58f"`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "871bec74507a1c21336832b698f77cec5121f187e3ea434ffc25dd500ca4f58f"`
[INFO] running `"docker" "rm" "-f" "871bec74507a1c21336832b698f77cec5121f187e3ea434ffc25dd500ca4f58f"`
[INFO] [stdout] 871bec74507a1c21336832b698f77cec5121f187e3ea434ffc25dd500ca4f58f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8ea0393e6025a67484cefe9b6d889417cc39d9fe7cbd07f9c7ea3d8ac01028fc
[INFO] running `"docker" "start" "-a" "8ea0393e6025a67484cefe9b6d889417cc39d9fe7cbd07f9c7ea3d8ac01028fc"`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "8ea0393e6025a67484cefe9b6d889417cc39d9fe7cbd07f9c7ea3d8ac01028fc"`
[INFO] running `"docker" "rm" "-f" "8ea0393e6025a67484cefe9b6d889417cc39d9fe7cbd07f9c7ea3d8ac01028fc"`
[INFO] [stdout] 8ea0393e6025a67484cefe9b6d889417cc39d9fe7cbd07f9c7ea3d8ac01028fc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/YZY74224/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 549876363dbaee665147b5e411e3fbe760c9e92fa55c9df502e3ef9bbf736480
[INFO] running `"docker" "start" "-a" "549876363dbaee665147b5e411e3fbe760c9e92fa55c9df502e3ef9bbf736480"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning_rust-5c61a773a3843600
[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" "549876363dbaee665147b5e411e3fbe760c9e92fa55c9df502e3ef9bbf736480"`
[INFO] running `"docker" "rm" "-f" "549876363dbaee665147b5e411e3fbe760c9e92fa55c9df502e3ef9bbf736480"`
[INFO] [stdout] 549876363dbaee665147b5e411e3fbe760c9e92fa55c9df502e3ef9bbf736480