[INFO] updating cached repository KarlaJu/Rust_tests
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KarlaJu/Rust_tests
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KarlaJu/Rust_tests" "work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KarlaJu/Rust_tests" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KarlaJu/Rust_tests"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KarlaJu/Rust_tests'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0756cd091346658879e935011802456f6ca2a47e
[INFO] sha for GitHub repo KarlaJu/Rust_tests: 0756cd091346658879e935011802456f6ca2a47e
[INFO] validating manifest of KarlaJu/Rust_tests 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 KarlaJu/Rust_tests 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 KarlaJu/Rust_tests
[INFO] finished frobbing KarlaJu/Rust_tests
[INFO] frobbed toml for KarlaJu/Rust_tests written to work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests/Cargo.toml
[INFO] started frobbing KarlaJu/Rust_tests
[INFO] finished frobbing KarlaJu/Rust_tests
[INFO] frobbed toml for KarlaJu/Rust_tests written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KarlaJu/Rust_tests/Cargo.toml
[INFO] crate KarlaJu/Rust_tests 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 KarlaJu/Rust_tests 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests:/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] 005de921dceb8bb364beccd68c27e01c8ce77382d56ccc1bcff67f9e7c73b081
[INFO] running `"docker" "start" "-a" "005de921dceb8bb364beccd68c27e01c8ce77382d56ccc1bcff67f9e7c73b081"`
[INFO] [stderr]    Compiling rust_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Rectangle`
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Rectangle{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_square`
[INFO] [stderr]   --> src/main.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   fn is_square(&self) -> bool {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_two`
[INFO] [stderr]   --> src/main.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn get_two() -> i16 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "005de921dceb8bb364beccd68c27e01c8ce77382d56ccc1bcff67f9e7c73b081"`
[INFO] running `"docker" "rm" "-f" "005de921dceb8bb364beccd68c27e01c8ce77382d56ccc1bcff67f9e7c73b081"`
[INFO] [stdout] 005de921dceb8bb364beccd68c27e01c8ce77382d56ccc1bcff67f9e7c73b081
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests:/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] 600663457b1897c17236e53d2f9100d48a1446c8d03a086db5e77ae67863f46c
[INFO] running `"docker" "start" "-a" "600663457b1897c17236e53d2f9100d48a1446c8d03a086db5e77ae67863f46c"`
[INFO] [stderr]    Compiling rust_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "600663457b1897c17236e53d2f9100d48a1446c8d03a086db5e77ae67863f46c"`
[INFO] running `"docker" "rm" "-f" "600663457b1897c17236e53d2f9100d48a1446c8d03a086db5e77ae67863f46c"`
[INFO] [stdout] 600663457b1897c17236e53d2f9100d48a1446c8d03a086db5e77ae67863f46c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/KarlaJu/Rust_tests:/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] e77ff90a3936c1645150934788878c8e78e3174ab85dca59e03d1a85a4bbbc7e
[INFO] running `"docker" "start" "-a" "e77ff90a3936c1645150934788878c8e78e3174ab85dca59e03d1a85a4bbbc7e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_test-e79c8ed12cd4d70f
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test firs_test::equal_test ... ignored
[INFO] [stdout] test firs_test::call_method ... ok
[INFO] [stdout] test firs_test::test_struct_rectangle ... ok
[INFO] [stdout] test firs_test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e77ff90a3936c1645150934788878c8e78e3174ab85dca59e03d1a85a4bbbc7e"`
[INFO] running `"docker" "rm" "-f" "e77ff90a3936c1645150934788878c8e78e3174ab85dca59e03d1a85a4bbbc7e"`
[INFO] [stdout] e77ff90a3936c1645150934788878c8e78e3174ab85dca59e03d1a85a4bbbc7e