[INFO] updating cached repository BurNiinTRee/stack-calculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BurNiinTRee/stack-calculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BurNiinTRee/stack-calculator" "work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BurNiinTRee/stack-calculator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BurNiinTRee/stack-calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BurNiinTRee/stack-calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9643bce9a3118d8a2d06d8fe87cc864a9f4c0182
[INFO] sha for GitHub repo BurNiinTRee/stack-calculator: 9643bce9a3118d8a2d06d8fe87cc864a9f4c0182
[INFO] validating manifest of BurNiinTRee/stack-calculator 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 BurNiinTRee/stack-calculator 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 BurNiinTRee/stack-calculator
[INFO] finished frobbing BurNiinTRee/stack-calculator
[INFO] frobbed toml for BurNiinTRee/stack-calculator written to work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator/Cargo.toml
[INFO] started frobbing BurNiinTRee/stack-calculator
[INFO] finished frobbing BurNiinTRee/stack-calculator
[INFO] frobbed toml for BurNiinTRee/stack-calculator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BurNiinTRee/stack-calculator/Cargo.toml
[INFO] crate BurNiinTRee/stack-calculator 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 BurNiinTRee/stack-calculator 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator:/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] 00836294bd10a9f05a9d3884425d6ad2d3387614cff278c337f6ad8b7dd53eab
[INFO] running `"docker" "start" "-a" "00836294bd10a9f05a9d3884425d6ad2d3387614cff278c337f6ad8b7dd53eab"`
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling structopt v0.2.10
[INFO] [stderr]    Compiling stack-calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.98s
[INFO] running `"docker" "inspect" "00836294bd10a9f05a9d3884425d6ad2d3387614cff278c337f6ad8b7dd53eab"`
[INFO] running `"docker" "rm" "-f" "00836294bd10a9f05a9d3884425d6ad2d3387614cff278c337f6ad8b7dd53eab"`
[INFO] [stdout] 00836294bd10a9f05a9d3884425d6ad2d3387614cff278c337f6ad8b7dd53eab
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator:/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] 1ea5b737c1b7a56146d41cf972cd96cdfa4cf2041e0cfe42ab57500d2ebdd638
[INFO] running `"docker" "start" "-a" "1ea5b737c1b7a56146d41cf972cd96cdfa4cf2041e0cfe42ab57500d2ebdd638"`
[INFO] [stderr]    Compiling stack-calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `"docker" "inspect" "1ea5b737c1b7a56146d41cf972cd96cdfa4cf2041e0cfe42ab57500d2ebdd638"`
[INFO] running `"docker" "rm" "-f" "1ea5b737c1b7a56146d41cf972cd96cdfa4cf2041e0cfe42ab57500d2ebdd638"`
[INFO] [stdout] 1ea5b737c1b7a56146d41cf972cd96cdfa4cf2041e0cfe42ab57500d2ebdd638
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BurNiinTRee/stack-calculator:/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] 4db130a37ddfbe3ba4ded2359d2ed8ddb9daa11bdeeb1ac2ac74a1c2c3d6ae4c
[INFO] running `"docker" "start" "-a" "4db130a37ddfbe3ba4ded2359d2ed8ddb9daa11bdeeb1ac2ac74a1c2c3d6ae4c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stack_calculator-d63beb72b99f5d1b
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test arithmetic::tests::simple_addition ... ok
[INFO] [stdout] test arithmetic::tests::simple_multiplication ... ok
[INFO] [stdout] test arithmetic::tests::simple_substraction ... ok
[INFO] [stdout] test arithmetic::tests::simple_division ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stack_calculator-52ac04e362d1957d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stack-calculator
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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" "4db130a37ddfbe3ba4ded2359d2ed8ddb9daa11bdeeb1ac2ac74a1c2c3d6ae4c"`
[INFO] running `"docker" "rm" "-f" "4db130a37ddfbe3ba4ded2359d2ed8ddb9daa11bdeeb1ac2ac74a1c2c3d6ae4c"`
[INFO] [stdout] 4db130a37ddfbe3ba4ded2359d2ed8ddb9daa11bdeeb1ac2ac74a1c2c3d6ae4c