[INFO] updating cached repository Zhuxy/rust-learning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Zhuxy/rust-learning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Zhuxy/rust-learning" "work/ex/beta-1.38-1/sources/1.37.0/gh/Zhuxy/rust-learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Zhuxy/rust-learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Zhuxy/rust-learning" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Zhuxy/rust-learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Zhuxy/rust-learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c1c70553b0425bfa676f2ca5bcc56a12e123e45
[INFO] sha for GitHub repo Zhuxy/rust-learning: 3c1c70553b0425bfa676f2ca5bcc56a12e123e45
[INFO] validating manifest of Zhuxy/rust-learning 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 Zhuxy/rust-learning 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 Zhuxy/rust-learning
[INFO] finished frobbing Zhuxy/rust-learning
[INFO] frobbed toml for Zhuxy/rust-learning written to work/ex/beta-1.38-1/sources/1.37.0/gh/Zhuxy/rust-learning/Cargo.toml
[INFO] started frobbing Zhuxy/rust-learning
[INFO] finished frobbing Zhuxy/rust-learning
[INFO] frobbed toml for Zhuxy/rust-learning written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Zhuxy/rust-learning/Cargo.toml
[INFO] crate Zhuxy/rust-learning 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 Zhuxy/rust-learning 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-4/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/Zhuxy/rust-learning:/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] a6029df29db27e1aec3ae5c9849278e22dbd4b6386314c751a794133ddfa7286
[INFO] running `"docker" "start" "-a" "a6029df29db27e1aec3ae5c9849278e22dbd4b6386314c751a794133ddfa7286"`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "a6029df29db27e1aec3ae5c9849278e22dbd4b6386314c751a794133ddfa7286"`
[INFO] running `"docker" "rm" "-f" "a6029df29db27e1aec3ae5c9849278e22dbd4b6386314c751a794133ddfa7286"`
[INFO] [stdout] a6029df29db27e1aec3ae5c9849278e22dbd4b6386314c751a794133ddfa7286
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/Zhuxy/rust-learning:/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] c129f23978d23a65554874d4365251446e1c6c8a044d8f70efa88058779028be
[INFO] running `"docker" "start" "-a" "c129f23978d23a65554874d4365251446e1c6c8a044d8f70efa88058779028be"`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "c129f23978d23a65554874d4365251446e1c6c8a044d8f70efa88058779028be"`
[INFO] running `"docker" "rm" "-f" "c129f23978d23a65554874d4365251446e1c6c8a044d8f70efa88058779028be"`
[INFO] [stdout] c129f23978d23a65554874d4365251446e1c6c8a044d8f70efa88058779028be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/Zhuxy/rust-learning:/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] a4a769776359e077285f65c1741ae0d6d0c02eac192c07c86bb46220f7448ccf
[INFO] running `"docker" "start" "-a" "a4a769776359e077285f65c1741ae0d6d0c02eac192c07c86bb46220f7448ccf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_learning-e360a9ef73622e0f
[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" "a4a769776359e077285f65c1741ae0d6d0c02eac192c07c86bb46220f7448ccf"`
[INFO] running `"docker" "rm" "-f" "a4a769776359e077285f65c1741ae0d6d0c02eac192c07c86bb46220f7448ccf"`
[INFO] [stdout] a4a769776359e077285f65c1741ae0d6d0c02eac192c07c86bb46220f7448ccf