[INFO] updating cached repository beyran11/MFTRust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/beyran11/MFTRust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/beyran11/MFTRust" "work/ex/beta-1.37-6/sources/1.36.0/gh/beyran11/MFTRust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/beyran11/MFTRust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/beyran11/MFTRust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/beyran11/MFTRust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/beyran11/MFTRust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3b738afe0fbad5cd520cadeb04c9712c3d6cbae7 [INFO] sha for GitHub repo beyran11/MFTRust: 3b738afe0fbad5cd520cadeb04c9712c3d6cbae7 [INFO] validating manifest of beyran11/MFTRust 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 beyran11/MFTRust 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 beyran11/MFTRust [INFO] finished frobbing beyran11/MFTRust [INFO] frobbed toml for beyran11/MFTRust written to work/ex/beta-1.37-6/sources/1.36.0/gh/beyran11/MFTRust/Cargo.toml [INFO] started frobbing beyran11/MFTRust [INFO] finished frobbing beyran11/MFTRust [INFO] frobbed toml for beyran11/MFTRust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/beyran11/MFTRust/Cargo.toml [INFO] crate beyran11/MFTRust 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] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing beyran11/MFTRust 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-6/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/beyran11/MFTRust:/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] 5a9b69bce8e651bac0d5285ff989046af7749e077f8689813b1c77760981dd59 [INFO] running `"docker" "start" "-a" "5a9b69bce8e651bac0d5285ff989046af7749e077f8689813b1c77760981dd59"` [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling MFTRust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let sum = 5 + 10; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sum` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `difference` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let difference = 95.5 - 4.3; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_difference` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `product` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let product = 4 * 30; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_product` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tup` [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let tup: (i32, f64, u8) = (500, 6.4, 1) ; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_tup` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let first = a[0]; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_first` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `second` [INFO] [stderr] --> src/main.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let second = a[1]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_second` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `months` [INFO] [stderr] --> src/main.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let months = ["January", "February", "March", "April", "May", "June", "July", [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_months` [INFO] [stderr] [INFO] [stderr] warning: crate `MFTRust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `mftrust` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.28s [INFO] running `"docker" "inspect" "5a9b69bce8e651bac0d5285ff989046af7749e077f8689813b1c77760981dd59"` [INFO] running `"docker" "rm" "-f" "5a9b69bce8e651bac0d5285ff989046af7749e077f8689813b1c77760981dd59"` [INFO] [stdout] 5a9b69bce8e651bac0d5285ff989046af7749e077f8689813b1c77760981dd59 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/beyran11/MFTRust:/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] 470e9c8dc71948a379cf463ca496ad45a706644a294658225b8eca25f5f63d92 [INFO] running `"docker" "start" "-a" "470e9c8dc71948a379cf463ca496ad45a706644a294658225b8eca25f5f63d92"` [INFO] [stderr] Compiling MFTRust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `sum` [INFO] [stderr] --> src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let sum = 5 + 10; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sum` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `difference` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let difference = 95.5 - 4.3; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_difference` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `product` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let product = 4 * 30; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_product` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tup` [INFO] [stderr] --> src/main.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let tup: (i32, f64, u8) = (500, 6.4, 1) ; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_tup` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let first = a[0]; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_first` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `second` [INFO] [stderr] --> src/main.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let second = a[1]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_second` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `months` [INFO] [stderr] --> src/main.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let months = ["January", "February", "March", "April", "May", "June", "July", [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_months` [INFO] [stderr] [INFO] [stderr] warning: crate `MFTRust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `mftrust` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `"docker" "inspect" "470e9c8dc71948a379cf463ca496ad45a706644a294658225b8eca25f5f63d92"` [INFO] running `"docker" "rm" "-f" "470e9c8dc71948a379cf463ca496ad45a706644a294658225b8eca25f5f63d92"` [INFO] [stdout] 470e9c8dc71948a379cf463ca496ad45a706644a294658225b8eca25f5f63d92 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/beyran11/MFTRust:/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] 084d51775bb543c0a480bdf4a145f6bd132e6df0b8f62409cfb617932f9b4697 [INFO] running `"docker" "start" "-a" "084d51775bb543c0a480bdf4a145f6bd132e6df0b8f62409cfb617932f9b4697"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/MFTRust-b44e9c6bbd8d1b0c [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" "084d51775bb543c0a480bdf4a145f6bd132e6df0b8f62409cfb617932f9b4697"` [INFO] running `"docker" "rm" "-f" "084d51775bb543c0a480bdf4a145f6bd132e6df0b8f62409cfb617932f9b4697"` [INFO] [stdout] 084d51775bb543c0a480bdf4a145f6bd132e6df0b8f62409cfb617932f9b4697