[INFO] updating cached repository intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9f9ca88c557e5223be0fdc4dcb839de8706479e4 [INFO] sha for GitHub repo intrepion/example-x-rust-x-rustbyexample-com-x-primitives: 9f9ca88c557e5223be0fdc4dcb839de8706479e4 [INFO] validating manifest of intrepion/example-x-rust-x-rustbyexample-com-x-primitives on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of intrepion/example-x-rust-x-rustbyexample-com-x-primitives on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-primitives written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives/Cargo.toml [INFO] started frobbing intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-primitives [INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-primitives written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives/Cargo.toml [INFO] crate intrepion/example-x-rust-x-rustbyexample-com-x-primitives already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking intrepion/example-x-rust-x-rustbyexample-com-x-primitives against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/intrepion/example-x-rust-x-rustbyexample-com-x-primitives:/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=forbid" "-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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 87bce125774323be71d139f9437200d0fbdfdc47a1b13895215f1f1211441ad9 [INFO] running `"docker" "start" "-a" "87bce125774323be71d139f9437200d0fbdfdc47a1b13895215f1f1211441ad9"` [INFO] [stderr] Checking example-x-rust-x-rustbyexample-com-x-primitives v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let logical: bool = true; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_logical` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_float` [INFO] [stderr] --> src/main.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_integer` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let an_integer = 5i32; // Suffix annotation [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_an_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let default_float = 3.0; // `f64` [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_integer` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let default_integer = 7; // `i32` [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_default_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/main.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable = 12; // Mutable `i32`. [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable = 12; // Mutable `i32`. [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/main.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let logical: bool = true; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_logical` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_float` [INFO] [stderr] --> src/main.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_integer` [INFO] [stderr] --> src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let an_integer = 5i32; // Suffix annotation [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_an_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let default_float = 3.0; // `f64` [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_integer` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let default_integer = 7; // `i32` [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_default_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/main.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable = 12; // Mutable `i32`. [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable = 12; // Mutable `i32`. [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `"docker" "inspect" "87bce125774323be71d139f9437200d0fbdfdc47a1b13895215f1f1211441ad9"` [INFO] running `"docker" "rm" "-f" "87bce125774323be71d139f9437200d0fbdfdc47a1b13895215f1f1211441ad9"` [INFO] [stdout] 87bce125774323be71d139f9437200d0fbdfdc47a1b13895215f1f1211441ad9