[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-1.38-1/sources/1.37.0/gh/d4sein/Learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/d4sein/Learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/d4sein/Learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/d4sein/Learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of d4sein/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 d4sein/Learning-rust
[INFO] finished frobbing d4sein/Learning-rust
[INFO] frobbed toml for d4sein/Learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 d4sein/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-6/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/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f1be05acc150f6e55e646640a0dbbef9571417c2db80d2565502e9b088d8f1e9
[INFO] running `"docker" "start" "-a" "f1be05acc150f6e55e646640a0dbbef9571417c2db80d2565502e9b088d8f1e9"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "f1be05acc150f6e55e646640a0dbbef9571417c2db80d2565502e9b088d8f1e9"`
[INFO] running `"docker" "rm" "-f" "f1be05acc150f6e55e646640a0dbbef9571417c2db80d2565502e9b088d8f1e9"`
[INFO] [stdout] f1be05acc150f6e55e646640a0dbbef9571417c2db80d2565502e9b088d8f1e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 042b56e5efa36ea9d1042300226657be0b7b046e6bdbc146f4f0cf13d803dcb9
[INFO] running `"docker" "start" "-a" "042b56e5efa36ea9d1042300226657be0b7b046e6bdbc146f4f0cf13d803dcb9"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "042b56e5efa36ea9d1042300226657be0b7b046e6bdbc146f4f0cf13d803dcb9"`
[INFO] running `"docker" "rm" "-f" "042b56e5efa36ea9d1042300226657be0b7b046e6bdbc146f4f0cf13d803dcb9"`
[INFO] [stdout] 042b56e5efa36ea9d1042300226657be0b7b046e6bdbc146f4f0cf13d803dcb9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c3383d6f9256c2d6899b65ca441b33c0ebcbb21a8d93035afa949e0e6ea91efc
[INFO] running `"docker" "start" "-a" "c3383d6f9256c2d6899b65ca441b33c0ebcbb21a8d93035afa949e0e6ea91efc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning-c8a3091e1d2783e5
[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" "c3383d6f9256c2d6899b65ca441b33c0ebcbb21a8d93035afa949e0e6ea91efc"`
[INFO] running `"docker" "rm" "-f" "c3383d6f9256c2d6899b65ca441b33c0ebcbb21a8d93035afa949e0e6ea91efc"`
[INFO] [stdout] c3383d6f9256c2d6899b65ca441b33c0ebcbb21a8d93035afa949e0e6ea91efc