[INFO] updating cached repository sileixinhua/RustLearning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sileixinhua/RustLearning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sileixinhua/RustLearning" "work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sileixinhua/RustLearning" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sileixinhua/RustLearning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sileixinhua/RustLearning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 086eec506800e0ed7214acdca049dd1aaf588c2f
[INFO] sha for GitHub repo sileixinhua/RustLearning: 086eec506800e0ed7214acdca049dd1aaf588c2f
[INFO] validating manifest of sileixinhua/RustLearning 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 sileixinhua/RustLearning 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 sileixinhua/RustLearning
[INFO] finished frobbing sileixinhua/RustLearning
[INFO] frobbed toml for sileixinhua/RustLearning written to work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning/Cargo.toml
[INFO] started frobbing sileixinhua/RustLearning
[INFO] finished frobbing sileixinhua/RustLearning
[INFO] frobbed toml for sileixinhua/RustLearning written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sileixinhua/RustLearning/Cargo.toml
[INFO] crate sileixinhua/RustLearning 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sileixinhua/RustLearning against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 712e1eb5421dfde49f77c108c30cee81829dc2bac1a67eb30ca308c12919ea73
[INFO] running `"docker" "start" "-a" "712e1eb5421dfde49f77c108c30cee81829dc2bac1a67eb30ca308c12919ea73"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "712e1eb5421dfde49f77c108c30cee81829dc2bac1a67eb30ca308c12919ea73"`
[INFO] running `"docker" "rm" "-f" "712e1eb5421dfde49f77c108c30cee81829dc2bac1a67eb30ca308c12919ea73"`
[INFO] [stdout] 712e1eb5421dfde49f77c108c30cee81829dc2bac1a67eb30ca308c12919ea73
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 87d8cc7371d4dbd8cb7c225929208399af3eb18c028900cb6741b417062b5cd5
[INFO] running `"docker" "start" "-a" "87d8cc7371d4dbd8cb7c225929208399af3eb18c028900cb6741b417062b5cd5"`
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "87d8cc7371d4dbd8cb7c225929208399af3eb18c028900cb6741b417062b5cd5"`
[INFO] running `"docker" "rm" "-f" "87d8cc7371d4dbd8cb7c225929208399af3eb18c028900cb6741b417062b5cd5"`
[INFO] [stdout] 87d8cc7371d4dbd8cb7c225929208399af3eb18c028900cb6741b417062b5cd5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sileixinhua/RustLearning:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c33322d615c003b9ccf0ddfa977154d074d2b6a926772fe713acda005bbf2ea5
[INFO] running `"docker" "start" "-a" "c33322d615c003b9ccf0ddfa977154d074d2b6a926772fe713acda005bbf2ea5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/untitled-75789b53ca6dd003
[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" "c33322d615c003b9ccf0ddfa977154d074d2b6a926772fe713acda005bbf2ea5"`
[INFO] running `"docker" "rm" "-f" "c33322d615c003b9ccf0ddfa977154d074d2b6a926772fe713acda005bbf2ea5"`
[INFO] [stdout] c33322d615c003b9ccf0ddfa977154d074d2b6a926772fe713acda005bbf2ea5