Dec 19 15:41:32.251 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-primitives against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:41:32.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:41:32.582 INFO [stdout] d7253d6e32a002b7f23ec7678ffede5e677894d9c88601b154ca90b074967469
Dec 19 15:41:32.582 INFO running `"docker" "start" "-a" "d7253d6e32a002b7f23ec7678ffede5e677894d9c88601b154ca90b074967469"`
Dec 19 15:41:33.077 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-primitives v0.1.0 (/opt/crater/workdir)
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `logical`
Dec 19 15:41:33.208 INFO [stderr]  --> src/main.rs:3:9
Dec 19 15:41:33.208 INFO [stderr]   |
Dec 19 15:41:33.208 INFO [stderr] 3 |     let logical: bool = true;
Dec 19 15:41:33.208 INFO [stderr]   |         ^^^^^^^ help: consider using `_logical` instead
Dec 19 15:41:33.208 INFO [stderr]   |
Dec 19 15:41:33.208 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `a_float`
Dec 19 15:41:33.208 INFO [stderr]  --> src/main.rs:5:9
Dec 19 15:41:33.208 INFO [stderr]   |
Dec 19 15:41:33.208 INFO [stderr] 5 |     let a_float: f64 = 1.0;  // Regular annotation
Dec 19 15:41:33.208 INFO [stderr]   |         ^^^^^^^ help: consider using `_a_float` instead
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `an_integer`
Dec 19 15:41:33.208 INFO [stderr]  --> src/main.rs:6:9
Dec 19 15:41:33.208 INFO [stderr]   |
Dec 19 15:41:33.208 INFO [stderr] 6 |     let an_integer   = 5i32; // Suffix annotation
Dec 19 15:41:33.208 INFO [stderr]   |         ^^^^^^^^^^ help: consider using `_an_integer` instead
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `default_float`
Dec 19 15:41:33.208 INFO [stderr]  --> src/main.rs:9:9
Dec 19 15:41:33.208 INFO [stderr]   |
Dec 19 15:41:33.208 INFO [stderr] 9 |     let default_float   = 3.0; // `f64`
Dec 19 15:41:33.208 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_default_float` instead
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `default_integer`
Dec 19 15:41:33.208 INFO [stderr]   --> src/main.rs:10:9
Dec 19 15:41:33.208 INFO [stderr]    |
Dec 19 15:41:33.208 INFO [stderr] 10 |     let default_integer = 7;   // `i32`
Dec 19 15:41:33.208 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_default_integer` instead
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: unused variable: `mutable`
Dec 19 15:41:33.208 INFO [stderr]   --> src/main.rs:12:13
Dec 19 15:41:33.208 INFO [stderr]    |
Dec 19 15:41:33.208 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 19 15:41:33.208 INFO [stderr]    |             ^^^^^^^ help: consider using `_mutable` instead
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.208 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:41:33.208 INFO [stderr]   --> src/main.rs:12:9
Dec 19 15:41:33.208 INFO [stderr]    |
Dec 19 15:41:33.208 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 19 15:41:33.208 INFO [stderr]    |         ----^^^^^^^
Dec 19 15:41:33.208 INFO [stderr]    |         |
Dec 19 15:41:33.208 INFO [stderr]    |         help: remove this `mut`
Dec 19 15:41:33.208 INFO [stderr]    |
Dec 19 15:41:33.208 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 15:41:33.208 INFO [stderr] 
Dec 19 15:41:33.226 INFO [stderr] warning: unused variable: `logical`
Dec 19 15:41:33.226 INFO [stderr]  --> src/main.rs:3:9
Dec 19 15:41:33.226 INFO [stderr]   |
Dec 19 15:41:33.226 INFO [stderr] 3 |     let logical: bool = true;
Dec 19 15:41:33.226 INFO [stderr]   |         ^^^^^^^ help: consider using `_logical` instead
Dec 19 15:41:33.226 INFO [stderr]   |
Dec 19 15:41:33.226 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 19 15:41:33.226 INFO [stderr] 
Dec 19 15:41:33.226 INFO [stderr] warning: unused variable: `a_float`
Dec 19 15:41:33.226 INFO [stderr]  --> src/main.rs:5:9
Dec 19 15:41:33.226 INFO [stderr]   |
Dec 19 15:41:33.226 INFO [stderr] 5 |     let a_float: f64 = 1.0;  // Regular annotation
Dec 19 15:41:33.226 INFO [stderr]   |         ^^^^^^^ help: consider using `_a_float` instead
Dec 19 15:41:33.230 INFO [stderr] 
Dec 19 15:41:33.231 INFO [stderr] warning: unused variable: `an_integer`
Dec 19 15:41:33.231 INFO [stderr]  --> src/main.rs:6:9
Dec 19 15:41:33.231 INFO [stderr]   |
Dec 19 15:41:33.231 INFO [stderr] 6 |     let an_integer   = 5i32; // Suffix annotation
Dec 19 15:41:33.231 INFO [stderr]   |         ^^^^^^^^^^ help: consider using `_an_integer` instead
Dec 19 15:41:33.231 INFO [stderr] 
Dec 19 15:41:33.231 INFO [stderr] warning: unused variable: `default_float`
Dec 19 15:41:33.231 INFO [stderr]  --> src/main.rs:9:9
Dec 19 15:41:33.231 INFO [stderr]   |
Dec 19 15:41:33.231 INFO [stderr] 9 |     let default_float   = 3.0; // `f64`
Dec 19 15:41:33.231 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_default_float` instead
Dec 19 15:41:33.231 INFO [stderr] 
Dec 19 15:41:33.231 INFO [stderr] warning: unused variable: `default_integer`
Dec 19 15:41:33.231 INFO [stderr]   --> src/main.rs:10:9
Dec 19 15:41:33.231 INFO [stderr]    |
Dec 19 15:41:33.231 INFO [stderr] 10 |     let default_integer = 7;   // `i32`
Dec 19 15:41:33.231 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_default_integer` instead
Dec 19 15:41:33.231 INFO [stderr] 
Dec 19 15:41:33.231 INFO [stderr] warning: unused variable: `mutable`
Dec 19 15:41:33.231 INFO [stderr]   --> src/main.rs:12:13
Dec 19 15:41:33.231 INFO [stderr]    |
Dec 19 15:41:33.231 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 19 15:41:33.231 INFO [stderr]    |             ^^^^^^^ help: consider using `_mutable` instead
Dec 19 15:41:33.231 INFO [stderr] 
Dec 19 15:41:33.231 INFO [stderr] warning: variable does not need to be mutable
Dec 19 15:41:33.231 INFO [stderr]   --> src/main.rs:12:9
Dec 19 15:41:33.231 INFO [stderr]    |
Dec 19 15:41:33.231 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 19 15:41:33.231 INFO [stderr]    |         ----^^^^^^^
Dec 19 15:41:33.231 INFO [stderr]    |         |
Dec 19 15:41:33.231 INFO [stderr]    |         help: remove this `mut`
Dec 19 15:41:33.231 INFO [stderr]    |
Dec 19 15:41:33.231 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 15:41:33.231 INFO [stderr] 
Dec 19 15:41:33.242 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
Dec 19 15:41:33.557 INFO running `"docker" "inspect" "d7253d6e32a002b7f23ec7678ffede5e677894d9c88601b154ca90b074967469"`
Dec 19 15:41:33.645 INFO running `"docker" "rm" "-f" "d7253d6e32a002b7f23ec7678ffede5e677894d9c88601b154ca90b074967469"`
Dec 19 15:41:33.723 INFO [stdout] d7253d6e32a002b7f23ec7678ffede5e677894d9c88601b154ca90b074967469