[INFO] updating cached repository alexUXUI/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alexUXUI/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alexUXUI/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexUXUI/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexUXUI/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexUXUI/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a7b2477e81fd35ebf971a20781f5bad5a2d6fff0
[INFO] sha for GitHub repo alexUXUI/learn-rust: a7b2477e81fd35ebf971a20781f5bad5a2d6fff0
[INFO] validating manifest of alexUXUI/learn-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 alexUXUI/learn-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 alexUXUI/learn-rust
[INFO] finished frobbing alexUXUI/learn-rust
[INFO] frobbed toml for alexUXUI/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-rust/Cargo.toml
[INFO] started frobbing alexUXUI/learn-rust
[INFO] finished frobbing alexUXUI/learn-rust
[INFO] frobbed toml for alexUXUI/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexUXUI/learn-rust/Cargo.toml
[INFO] crate alexUXUI/learn-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 alexUXUI/learn-rust 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 52096d95bd42b2734d1d9f263a97bdd491da67675084beb17dac56c36646f9ea
[INFO] running `"docker" "start" "-a" "52096d95bd42b2734d1d9f263a97bdd491da67675084beb17dac56c36646f9ea"`
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `"docker" "inspect" "52096d95bd42b2734d1d9f263a97bdd491da67675084beb17dac56c36646f9ea"`
[INFO] running `"docker" "rm" "-f" "52096d95bd42b2734d1d9f263a97bdd491da67675084beb17dac56c36646f9ea"`
[INFO] [stdout] 52096d95bd42b2734d1d9f263a97bdd491da67675084beb17dac56c36646f9ea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6e2fa632b247d3db628f380f3f9a4097dfdb2a2d4d7facf44120c38943ab32ca
[INFO] running `"docker" "start" "-a" "6e2fa632b247d3db628f380f3f9a4097dfdb2a2d4d7facf44120c38943ab32ca"`
[INFO] [stderr]    Compiling guess v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "6e2fa632b247d3db628f380f3f9a4097dfdb2a2d4d7facf44120c38943ab32ca"`
[INFO] running `"docker" "rm" "-f" "6e2fa632b247d3db628f380f3f9a4097dfdb2a2d4d7facf44120c38943ab32ca"`
[INFO] [stdout] 6e2fa632b247d3db628f380f3f9a4097dfdb2a2d4d7facf44120c38943ab32ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexUXUI/learn-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 7493f78ddb1b94e05c4951c7162d1a74a9a4c180181ecfdc1dfd35aef1eef1c3
[INFO] running `"docker" "start" "-a" "7493f78ddb1b94e05c4951c7162d1a74a9a4c180181ecfdc1dfd35aef1eef1c3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[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] [stderr]      Running /opt/crater/target/debug/deps/guess-511f11680e1f09df
[INFO] running `"docker" "inspect" "7493f78ddb1b94e05c4951c7162d1a74a9a4c180181ecfdc1dfd35aef1eef1c3"`
[INFO] running `"docker" "rm" "-f" "7493f78ddb1b94e05c4951c7162d1a74a9a4c180181ecfdc1dfd35aef1eef1c3"`
[INFO] [stdout] 7493f78ddb1b94e05c4951c7162d1a74a9a4c180181ecfdc1dfd35aef1eef1c3