Dec 18 08:05:59.866 INFO checking ConceptsDemo/rust-example against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 08:05:59.866 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/ConceptsDemo/rust-example:/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 18 08:06:00.216 INFO [stdout] 5d4fa16291dce94ebf9d6833e81fa745e5346a30981a5ca9080f28548bc10e3d
Dec 18 08:06:00.222 INFO running `"docker" "start" "-a" "5d4fa16291dce94ebf9d6833e81fa745e5346a30981a5ca9080f28548bc10e3d"`
Dec 18 08:06:01.860 INFO [stderr]     Checking rust-example v0.1.0 (/opt/crater/workdir)
Dec 18 08:06:02.248 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 18 08:06:02.248 INFO [stderr]  --> src/main.rs:1:15
Dec 18 08:06:02.248 INFO [stderr]   |
Dec 18 08:06:02.248 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 18 08:06:02.248 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 18 08:06:02.248 INFO [stderr]   |
Dec 18 08:06:02.248 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:06:02.248 INFO [stderr] 
Dec 18 08:06:02.300 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 18 08:06:02.300 INFO [stderr]  --> src/main.rs:1:15
Dec 18 08:06:02.300 INFO [stderr]   |
Dec 18 08:06:02.300 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 18 08:06:02.300 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 18 08:06:02.300 INFO [stderr]   |
Dec 18 08:06:02.300 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:06:02.300 INFO [stderr] 
Dec 18 08:06:02.429 INFO [stderr] warning: unused variable: `age`
Dec 18 08:06:02.429 INFO [stderr]  --> src/main.rs:7:13
Dec 18 08:06:02.429 INFO [stderr]   |
Dec 18 08:06:02.429 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 18 08:06:02.429 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 18 08:06:02.429 INFO [stderr]   |
Dec 18 08:06:02.429 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:06:02.429 INFO [stderr] 
Dec 18 08:06:02.429 INFO [stderr] warning: unused variable: `count`
Dec 18 08:06:02.429 INFO [stderr]   --> src/main.rs:64:6
Dec 18 08:06:02.429 INFO [stderr]    |
Dec 18 08:06:02.429 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 18 08:06:02.430 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 18 08:06:02.430 INFO [stderr] 
Dec 18 08:06:02.430 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 18 08:06:02.430 INFO [stderr]    --> src/main.rs:134:6
Dec 18 08:06:02.430 INFO [stderr]     |
Dec 18 08:06:02.430 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 18 08:06:02.430 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 18 08:06:02.430 INFO [stderr] 
Dec 18 08:06:02.430 INFO [stderr] warning: unused variable: `quicksilver`
Dec 18 08:06:02.430 INFO [stderr]    --> src/main.rs:172:6
Dec 18 08:06:02.430 INFO [stderr]     |
Dec 18 08:06:02.430 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 18 08:06:02.430 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 18 08:06:02.430 INFO [stderr] 
Dec 18 08:06:02.476 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.476 INFO [stderr]  --> src/main.rs:7:9
Dec 18 08:06:02.476 INFO [stderr]   |
Dec 18 08:06:02.476 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 18 08:06:02.476 INFO [stderr]   |         ----^^^
Dec 18 08:06:02.476 INFO [stderr]   |         |
Dec 18 08:06:02.476 INFO [stderr]   |         help: remove this `mut`
Dec 18 08:06:02.476 INFO [stderr]   |
Dec 18 08:06:02.476 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:06:02.476 INFO [stderr] 
Dec 18 08:06:02.476 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.476 INFO [stderr]   --> src/main.rs:18:6
Dec 18 08:06:02.476 INFO [stderr]    |
Dec 18 08:06:02.476 INFO [stderr] 18 |     let mut var = -4i32;
Dec 18 08:06:02.476 INFO [stderr]    |         ----^^^
Dec 18 08:06:02.476 INFO [stderr]    |         |
Dec 18 08:06:02.476 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:06:02.476 INFO [stderr] 
Dec 18 08:06:02.477 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.477 INFO [stderr]    --> src/main.rs:153:6
Dec 18 08:06:02.477 INFO [stderr]     |
Dec 18 08:06:02.477 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 18 08:06:02.477 INFO [stderr]     |         ----^^^^^^^
Dec 18 08:06:02.477 INFO [stderr]     |         |
Dec 18 08:06:02.477 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:06:02.477 INFO [stderr] 
Dec 18 08:06:02.477 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.477 INFO [stderr]    --> src/main.rs:166:6
Dec 18 08:06:02.477 INFO [stderr]     |
Dec 18 08:06:02.477 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 18 08:06:02.477 INFO [stderr]     |         ----^^^^^
Dec 18 08:06:02.477 INFO [stderr]     |         |
Dec 18 08:06:02.477 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:06:02.477 INFO [stderr] 
Dec 18 08:06:02.500 INFO [stderr] warning: unused variable: `age`
Dec 18 08:06:02.500 INFO [stderr]  --> src/main.rs:7:13
Dec 18 08:06:02.500 INFO [stderr]   |
Dec 18 08:06:02.500 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 18 08:06:02.500 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 18 08:06:02.508 INFO [stderr]   |
Dec 18 08:06:02.508 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 08:06:02.508 INFO [stderr] 
Dec 18 08:06:02.508 INFO [stderr] warning: unused variable: `count`
Dec 18 08:06:02.508 INFO [stderr]   --> src/main.rs:64:6
Dec 18 08:06:02.508 INFO [stderr]    |
Dec 18 08:06:02.508 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 18 08:06:02.508 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 18 08:06:02.508 INFO [stderr] 
Dec 18 08:06:02.508 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 18 08:06:02.508 INFO [stderr]    --> src/main.rs:134:6
Dec 18 08:06:02.508 INFO [stderr]     |
Dec 18 08:06:02.508 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 18 08:06:02.508 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 18 08:06:02.508 INFO [stderr] 
Dec 18 08:06:02.508 INFO [stderr] warning: unused variable: `quicksilver`
Dec 18 08:06:02.508 INFO [stderr]    --> src/main.rs:172:6
Dec 18 08:06:02.508 INFO [stderr]     |
Dec 18 08:06:02.508 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 18 08:06:02.509 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 18 08:06:02.509 INFO [stderr] 
Dec 18 08:06:02.604 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.604 INFO [stderr]  --> src/main.rs:7:9
Dec 18 08:06:02.604 INFO [stderr]   |
Dec 18 08:06:02.604 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 18 08:06:02.604 INFO [stderr]   |         ----^^^
Dec 18 08:06:02.604 INFO [stderr]   |         |
Dec 18 08:06:02.604 INFO [stderr]   |         help: remove this `mut`
Dec 18 08:06:02.604 INFO [stderr]   |
Dec 18 08:06:02.604 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 08:06:02.604 INFO [stderr] 
Dec 18 08:06:02.604 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.604 INFO [stderr]   --> src/main.rs:18:6
Dec 18 08:06:02.604 INFO [stderr]    |
Dec 18 08:06:02.604 INFO [stderr] 18 |     let mut var = -4i32;
Dec 18 08:06:02.604 INFO [stderr]    |         ----^^^
Dec 18 08:06:02.604 INFO [stderr]    |         |
Dec 18 08:06:02.604 INFO [stderr]    |         help: remove this `mut`
Dec 18 08:06:02.604 INFO [stderr] 
Dec 18 08:06:02.605 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.605 INFO [stderr]    --> src/main.rs:153:6
Dec 18 08:06:02.605 INFO [stderr]     |
Dec 18 08:06:02.605 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 18 08:06:02.605 INFO [stderr]     |         ----^^^^^^^
Dec 18 08:06:02.605 INFO [stderr]     |         |
Dec 18 08:06:02.605 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:06:02.605 INFO [stderr] 
Dec 18 08:06:02.605 INFO [stderr] warning: variable does not need to be mutable
Dec 18 08:06:02.605 INFO [stderr]    --> src/main.rs:166:6
Dec 18 08:06:02.605 INFO [stderr]     |
Dec 18 08:06:02.605 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 18 08:06:02.605 INFO [stderr]     |         ----^^^^^
Dec 18 08:06:02.605 INFO [stderr]     |         |
Dec 18 08:06:02.605 INFO [stderr]     |         help: remove this `mut`
Dec 18 08:06:02.605 INFO [stderr] 
Dec 18 08:06:02.660 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 18 08:06:03.392 INFO running `"docker" "inspect" "5d4fa16291dce94ebf9d6833e81fa745e5346a30981a5ca9080f28548bc10e3d"`
Dec 18 08:06:03.642 INFO running `"docker" "rm" "-f" "5d4fa16291dce94ebf9d6833e81fa745e5346a30981a5ca9080f28548bc10e3d"`
Dec 18 08:06:03.832 INFO [stdout] 5d4fa16291dce94ebf9d6833e81fa745e5346a30981a5ca9080f28548bc10e3d