[INFO] updating cached repository andreslab/RUST_GUIA
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andreslab/RUST_GUIA
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andreslab/RUST_GUIA" "work/ex/beta-1.37-6/sources/1.36.0/gh/andreslab/RUST_GUIA"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/andreslab/RUST_GUIA'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andreslab/RUST_GUIA" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andreslab/RUST_GUIA"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andreslab/RUST_GUIA'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa725e9203fac74be39b5c2b62b8e7546e267c25
[INFO] sha for GitHub repo andreslab/RUST_GUIA: fa725e9203fac74be39b5c2b62b8e7546e267c25
[INFO] validating manifest of andreslab/RUST_GUIA 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 andreslab/RUST_GUIA 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 andreslab/RUST_GUIA
[INFO] finished frobbing andreslab/RUST_GUIA
[INFO] frobbed toml for andreslab/RUST_GUIA written to work/ex/beta-1.37-6/sources/1.36.0/gh/andreslab/RUST_GUIA/Cargo.toml
[INFO] started frobbing andreslab/RUST_GUIA
[INFO] finished frobbing andreslab/RUST_GUIA
[INFO] frobbed toml for andreslab/RUST_GUIA written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andreslab/RUST_GUIA/Cargo.toml
[INFO] crate andreslab/RUST_GUIA 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 andreslab/RUST_GUIA 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-5/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/andreslab/RUST_GUIA:/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] d2677e659f67445be815cb15ee17891d3458c445fa8f704eede15dc055b6cc83
[INFO] running `"docker" "start" "-a" "d2677e659f67445be815cb15ee17891d3458c445fa8f704eede15dc055b6cc83"`
[INFO] [stderr]    Compiling cargo_hello_word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let x: i64 = 45;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let x: u64 = 45; //no support negative number (unsign)
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let f: f32 = 6.7; //float f32
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let b: bool = false;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "d2677e659f67445be815cb15ee17891d3458c445fa8f704eede15dc055b6cc83"`
[INFO] running `"docker" "rm" "-f" "d2677e659f67445be815cb15ee17891d3458c445fa8f704eede15dc055b6cc83"`
[INFO] [stdout] d2677e659f67445be815cb15ee17891d3458c445fa8f704eede15dc055b6cc83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/andreslab/RUST_GUIA:/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] fcbda6e5397dfd7e8ed0861648f065f9f4b38f21cba7bf8e210f82f1f260de3e
[INFO] running `"docker" "start" "-a" "fcbda6e5397dfd7e8ed0861648f065f9f4b38f21cba7bf8e210f82f1f260de3e"`
[INFO] [stderr]    Compiling cargo_hello_word v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let x: i64 = 45;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let x: u64 = 45; //no support negative number (unsign)
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let f: f32 = 6.7; //float f32
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let b: bool = false;
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "fcbda6e5397dfd7e8ed0861648f065f9f4b38f21cba7bf8e210f82f1f260de3e"`
[INFO] running `"docker" "rm" "-f" "fcbda6e5397dfd7e8ed0861648f065f9f4b38f21cba7bf8e210f82f1f260de3e"`
[INFO] [stdout] fcbda6e5397dfd7e8ed0861648f065f9f4b38f21cba7bf8e210f82f1f260de3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/andreslab/RUST_GUIA:/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] a0bb3f2875fb08981dfd36a668c7142da088f8848a0f1712ee892332e44a44d0
[INFO] running `"docker" "start" "-a" "a0bb3f2875fb08981dfd36a668c7142da088f8848a0f1712ee892332e44a44d0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cargo_hello_word-623859bbad9e9ebb
[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" "a0bb3f2875fb08981dfd36a668c7142da088f8848a0f1712ee892332e44a44d0"`
[INFO] running `"docker" "rm" "-f" "a0bb3f2875fb08981dfd36a668c7142da088f8848a0f1712ee892332e44a44d0"`
[INFO] [stdout] a0bb3f2875fb08981dfd36a668c7142da088f8848a0f1712ee892332e44a44d0