[INFO] updating cached repository d4sein/Learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/d4sein/Learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/d4sein/Learning-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/d4sein/Learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/d4sein/Learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/d4sein/Learning-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/d4sein/Learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/d4sein/Learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec1f72ecacf73954db4cacf16526caa79f75f5b9
[INFO] sha for GitHub repo d4sein/Learning-rust: ec1f72ecacf73954db4cacf16526caa79f75f5b9
[INFO] validating manifest of d4sein/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 d4sein/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 d4sein/Learning-rust
[INFO] finished frobbing d4sein/Learning-rust
[INFO] frobbed toml for d4sein/Learning-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/d4sein/Learning-rust/Cargo.toml
[INFO] started frobbing d4sein/Learning-rust
[INFO] finished frobbing d4sein/Learning-rust
[INFO] frobbed toml for d4sein/Learning-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/d4sein/Learning-rust/Cargo.toml
[INFO] crate d4sein/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 d4sein/Learning-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-4/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/d4sein/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 649164e34b619c75283406ae0ef0cd60c606f530a74871f98aae05d060b673b3
[INFO] running `"docker" "start" "-a" "649164e34b619c75283406ae0ef0cd60c606f530a74871f98aae05d060b673b3"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "649164e34b619c75283406ae0ef0cd60c606f530a74871f98aae05d060b673b3"`
[INFO] running `"docker" "rm" "-f" "649164e34b619c75283406ae0ef0cd60c606f530a74871f98aae05d060b673b3"`
[INFO] [stdout] 649164e34b619c75283406ae0ef0cd60c606f530a74871f98aae05d060b673b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/d4sein/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1d705d3b48eea9e20da31a4eb16b780a0cdbc7a0745e13eb2ba21570738803da
[INFO] running `"docker" "start" "-a" "1d705d3b48eea9e20da31a4eb16b780a0cdbc7a0745e13eb2ba21570738803da"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "1d705d3b48eea9e20da31a4eb16b780a0cdbc7a0745e13eb2ba21570738803da"`
[INFO] running `"docker" "rm" "-f" "1d705d3b48eea9e20da31a4eb16b780a0cdbc7a0745e13eb2ba21570738803da"`
[INFO] [stdout] 1d705d3b48eea9e20da31a4eb16b780a0cdbc7a0745e13eb2ba21570738803da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/d4sein/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 9ab72aa0cc651c0c4e0f0f4c9f06fc891c0d29ee318edb6b3e7b24f905e92df7
[INFO] running `"docker" "start" "-a" "9ab72aa0cc651c0c4e0f0f4c9f06fc891c0d29ee318edb6b3e7b24f905e92df7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning-a9a5aef6ef0fa86e
[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" "9ab72aa0cc651c0c4e0f0f4c9f06fc891c0d29ee318edb6b3e7b24f905e92df7"`
[INFO] running `"docker" "rm" "-f" "9ab72aa0cc651c0c4e0f0f4c9f06fc891c0d29ee318edb6b3e7b24f905e92df7"`
[INFO] [stdout] 9ab72aa0cc651c0c4e0f0f4c9f06fc891c0d29ee318edb6b3e7b24f905e92df7