Dec 17 22:52:59.121 INFO checking intrepion/example-x-rust-x-rustbyexample-com-x-primitives against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:52:59.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:52:59.278 INFO [stdout] 234e194f03a2fc4e43926576a6e2ea5df0e60db0afa6f38524028731418bf94a
Dec 17 22:52:59.283 INFO running `"docker" "start" "-a" "234e194f03a2fc4e43926576a6e2ea5df0e60db0afa6f38524028731418bf94a"`
Dec 17 22:52:59.826 INFO [stderr]     Checking example-x-rust-x-rustbyexample-com-x-primitives v0.1.0 (/opt/crater/workdir)
Dec 17 22:52:59.951 INFO [stderr] warning: unused variable: `logical`
Dec 17 22:52:59.951 INFO [stderr]  --> src/main.rs:3:9
Dec 17 22:52:59.951 INFO [stderr]   |
Dec 17 22:52:59.951 INFO [stderr] 3 |     let logical: bool = true;
Dec 17 22:52:59.951 INFO [stderr]   |         ^^^^^^^ help: consider using `_logical` instead
Dec 17 22:52:59.951 INFO [stderr]   |
Dec 17 22:52:59.951 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 22:52:59.951 INFO [stderr] 
Dec 17 22:52:59.951 INFO [stderr] warning: unused variable: `a_float`
Dec 17 22:52:59.951 INFO [stderr]  --> src/main.rs:5:9
Dec 17 22:52:59.951 INFO [stderr]   |
Dec 17 22:52:59.951 INFO [stderr] 5 |     let a_float: f64 = 1.0;  // Regular annotation
Dec 17 22:52:59.951 INFO [stderr]   |         ^^^^^^^ help: consider using `_a_float` instead
Dec 17 22:52:59.951 INFO [stderr] 
Dec 17 22:52:59.951 INFO [stderr] warning: unused variable: `an_integer`
Dec 17 22:52:59.951 INFO [stderr]  --> src/main.rs:6:9
Dec 17 22:52:59.951 INFO [stderr]   |
Dec 17 22:52:59.951 INFO [stderr] 6 |     let an_integer   = 5i32; // Suffix annotation
Dec 17 22:52:59.951 INFO [stderr]   |         ^^^^^^^^^^ help: consider using `_an_integer` instead
Dec 17 22:52:59.951 INFO [stderr] 
Dec 17 22:52:59.951 INFO [stderr] warning: unused variable: `default_float`
Dec 17 22:52:59.951 INFO [stderr]  --> src/main.rs:9:9
Dec 17 22:52:59.951 INFO [stderr]   |
Dec 17 22:52:59.951 INFO [stderr] 9 |     let default_float   = 3.0; // `f64`
Dec 17 22:52:59.951 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_default_float` instead
Dec 17 22:52:59.951 INFO [stderr] 
Dec 17 22:52:59.951 INFO [stderr] warning: unused variable: `default_integer`
Dec 17 22:52:59.951 INFO [stderr]   --> src/main.rs:10:9
Dec 17 22:52:59.951 INFO [stderr]    |
Dec 17 22:52:59.952 INFO [stderr] 10 |     let default_integer = 7;   // `i32`
Dec 17 22:52:59.952 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_default_integer` instead
Dec 17 22:52:59.952 INFO [stderr] 
Dec 17 22:52:59.952 INFO [stderr] warning: unused variable: `mutable`
Dec 17 22:52:59.952 INFO [stderr]   --> src/main.rs:12:13
Dec 17 22:52:59.952 INFO [stderr]    |
Dec 17 22:52:59.952 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 17 22:52:59.952 INFO [stderr]    |             ^^^^^^^ help: consider using `_mutable` instead
Dec 17 22:52:59.952 INFO [stderr] 
Dec 17 22:52:59.952 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:52:59.952 INFO [stderr]   --> src/main.rs:12:9
Dec 17 22:52:59.952 INFO [stderr]    |
Dec 17 22:52:59.952 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 17 22:52:59.952 INFO [stderr]    |         ----^^^^^^^
Dec 17 22:52:59.952 INFO [stderr]    |         |
Dec 17 22:52:59.952 INFO [stderr]    |         help: remove this `mut`
Dec 17 22:52:59.952 INFO [stderr]    |
Dec 17 22:52:59.952 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 22:52:59.952 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `logical`
Dec 17 22:53:00.016 INFO [stderr]  --> src/main.rs:3:9
Dec 17 22:53:00.016 INFO [stderr]   |
Dec 17 22:53:00.016 INFO [stderr] 3 |     let logical: bool = true;
Dec 17 22:53:00.016 INFO [stderr]   |         ^^^^^^^ help: consider using `_logical` instead
Dec 17 22:53:00.016 INFO [stderr]   |
Dec 17 22:53:00.016 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `a_float`
Dec 17 22:53:00.016 INFO [stderr]  --> src/main.rs:5:9
Dec 17 22:53:00.016 INFO [stderr]   |
Dec 17 22:53:00.016 INFO [stderr] 5 |     let a_float: f64 = 1.0;  // Regular annotation
Dec 17 22:53:00.016 INFO [stderr]   |         ^^^^^^^ help: consider using `_a_float` instead
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `an_integer`
Dec 17 22:53:00.016 INFO [stderr]  --> src/main.rs:6:9
Dec 17 22:53:00.016 INFO [stderr]   |
Dec 17 22:53:00.016 INFO [stderr] 6 |     let an_integer   = 5i32; // Suffix annotation
Dec 17 22:53:00.016 INFO [stderr]   |         ^^^^^^^^^^ help: consider using `_an_integer` instead
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `default_float`
Dec 17 22:53:00.016 INFO [stderr]  --> src/main.rs:9:9
Dec 17 22:53:00.016 INFO [stderr]   |
Dec 17 22:53:00.016 INFO [stderr] 9 |     let default_float   = 3.0; // `f64`
Dec 17 22:53:00.016 INFO [stderr]   |         ^^^^^^^^^^^^^ help: consider using `_default_float` instead
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `default_integer`
Dec 17 22:53:00.016 INFO [stderr]   --> src/main.rs:10:9
Dec 17 22:53:00.016 INFO [stderr]    |
Dec 17 22:53:00.016 INFO [stderr] 10 |     let default_integer = 7;   // `i32`
Dec 17 22:53:00.016 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_default_integer` instead
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.016 INFO [stderr] warning: unused variable: `mutable`
Dec 17 22:53:00.016 INFO [stderr]   --> src/main.rs:12:13
Dec 17 22:53:00.016 INFO [stderr]    |
Dec 17 22:53:00.016 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 17 22:53:00.016 INFO [stderr]    |             ^^^^^^^ help: consider using `_mutable` instead
Dec 17 22:53:00.016 INFO [stderr] 
Dec 17 22:53:00.017 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:53:00.017 INFO [stderr]   --> src/main.rs:12:9
Dec 17 22:53:00.017 INFO [stderr]    |
Dec 17 22:53:00.017 INFO [stderr] 12 |     let mut mutable = 12; // Mutable `i32`.
Dec 17 22:53:00.017 INFO [stderr]    |         ----^^^^^^^
Dec 17 22:53:00.017 INFO [stderr]    |         |
Dec 17 22:53:00.017 INFO [stderr]    |         help: remove this `mut`
Dec 17 22:53:00.017 INFO [stderr]    |
Dec 17 22:53:00.017 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 22:53:00.017 INFO [stderr] 
Dec 17 22:53:00.030 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
Dec 17 22:53:00.323 INFO running `"docker" "inspect" "234e194f03a2fc4e43926576a6e2ea5df0e60db0afa6f38524028731418bf94a"`
Dec 17 22:53:00.386 INFO running `"docker" "rm" "-f" "234e194f03a2fc4e43926576a6e2ea5df0e60db0afa6f38524028731418bf94a"`
Dec 17 22:53:00.482 INFO [stdout] 234e194f03a2fc4e43926576a6e2ea5df0e60db0afa6f38524028731418bf94a