Dec 06 14:51:20.270 INFO testing ConceptsDemo/rust-example against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 14:51:20.270 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 14:51:20.504 INFO [stdout] 521d5a4b23bccd069435e368f0248faf6d8552ba60011351bb7e6880e484e433
Dec 06 14:51:20.506 INFO running `"docker" "start" "-a" "521d5a4b23bccd069435e368f0248faf6d8552ba60011351bb7e6880e484e433"`
Dec 06 14:51:21.337 INFO [stderr] usermod: no changes
Dec 06 14:51:21.368 INFO [stderr]    Compiling rust-example v0.1.0 (/source)
Dec 06 14:51:21.741 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 06 14:51:21.741 INFO [stderr]  --> src/main.rs:1:15
Dec 06 14:51:21.741 INFO [stderr]   |
Dec 06 14:51:21.741 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 06 14:51:21.741 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 06 14:51:21.741 INFO [stderr]   |
Dec 06 14:51:21.741 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 14:51:21.741 INFO [stderr] 
Dec 06 14:51:21.869 INFO [stderr] warning: unused variable: `age`
Dec 06 14:51:21.870 INFO [stderr]  --> src/main.rs:7:13
Dec 06 14:51:21.870 INFO [stderr]   |
Dec 06 14:51:21.870 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 06 14:51:21.870 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 06 14:51:21.870 INFO [stderr]   |
Dec 06 14:51:21.870 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:51:21.870 INFO [stderr] 
Dec 06 14:51:21.870 INFO [stderr] warning: unused variable: `count`
Dec 06 14:51:21.870 INFO [stderr]   --> src/main.rs:64:6
Dec 06 14:51:21.870 INFO [stderr]    |
Dec 06 14:51:21.870 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 06 14:51:21.870 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 06 14:51:21.870 INFO [stderr] 
Dec 06 14:51:21.870 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 06 14:51:21.870 INFO [stderr]    --> src/main.rs:134:6
Dec 06 14:51:21.870 INFO [stderr]     |
Dec 06 14:51:21.870 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 06 14:51:21.870 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 06 14:51:21.870 INFO [stderr] 
Dec 06 14:51:21.870 INFO [stderr] warning: unused variable: `quicksilver`
Dec 06 14:51:21.870 INFO [stderr]    --> src/main.rs:172:6
Dec 06 14:51:21.870 INFO [stderr]     |
Dec 06 14:51:21.870 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 06 14:51:21.870 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 06 14:51:21.870 INFO [stderr] 
Dec 06 14:51:21.902 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:21.902 INFO [stderr]  --> src/main.rs:7:9
Dec 06 14:51:21.902 INFO [stderr]   |
Dec 06 14:51:21.902 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 06 14:51:21.902 INFO [stderr]   |         ----^^^
Dec 06 14:51:21.902 INFO [stderr]   |         |
Dec 06 14:51:21.902 INFO [stderr]   |         help: remove this `mut`
Dec 06 14:51:21.902 INFO [stderr]   |
Dec 06 14:51:21.902 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 06 14:51:21.902 INFO [stderr] 
Dec 06 14:51:21.902 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:21.902 INFO [stderr]   --> src/main.rs:18:6
Dec 06 14:51:21.902 INFO [stderr]    |
Dec 06 14:51:21.902 INFO [stderr] 18 |     let mut var = -4i32;
Dec 06 14:51:21.902 INFO [stderr]    |         ----^^^
Dec 06 14:51:21.902 INFO [stderr]    |         |
Dec 06 14:51:21.902 INFO [stderr]    |         help: remove this `mut`
Dec 06 14:51:21.902 INFO [stderr] 
Dec 06 14:51:21.902 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:21.902 INFO [stderr]    --> src/main.rs:153:6
Dec 06 14:51:21.902 INFO [stderr]     |
Dec 06 14:51:21.902 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 06 14:51:21.902 INFO [stderr]     |         ----^^^^^^^
Dec 06 14:51:21.903 INFO [stderr]     |         |
Dec 06 14:51:21.903 INFO [stderr]     |         help: remove this `mut`
Dec 06 14:51:21.903 INFO [stderr] 
Dec 06 14:51:21.903 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:21.903 INFO [stderr]    --> src/main.rs:166:6
Dec 06 14:51:21.903 INFO [stderr]     |
Dec 06 14:51:21.903 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 06 14:51:21.903 INFO [stderr]     |         ----^^^^^
Dec 06 14:51:21.903 INFO [stderr]     |         |
Dec 06 14:51:21.903 INFO [stderr]     |         help: remove this `mut`
Dec 06 14:51:21.903 INFO [stderr] 
Dec 06 14:51:22.513 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 06 14:51:22.515 INFO [stderr] su: No module specific data is present
Dec 06 14:51:23.412 INFO running `"docker" "inspect" "521d5a4b23bccd069435e368f0248faf6d8552ba60011351bb7e6880e484e433"`
Dec 06 14:51:23.650 INFO running `"docker" "rm" "-f" "521d5a4b23bccd069435e368f0248faf6d8552ba60011351bb7e6880e484e433"`
Dec 06 14:51:23.866 INFO [stdout] 521d5a4b23bccd069435e368f0248faf6d8552ba60011351bb7e6880e484e433
Dec 06 14:51:23.869 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 14:51:24.220 INFO [stdout] 3f2038c5b2360c3e15133ea6b77d0af30f3e0190e530091d9a23859cf0769c57
Dec 06 14:51:24.220 INFO running `"docker" "start" "-a" "3f2038c5b2360c3e15133ea6b77d0af30f3e0190e530091d9a23859cf0769c57"`
Dec 06 14:51:25.220 INFO [stderr] usermod: no changes
Dec 06 14:51:25.273 INFO [stderr]    Compiling rust-example v0.1.0 (/source)
Dec 06 14:51:25.830 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 06 14:51:25.836 INFO [stderr]  --> src/main.rs:1:15
Dec 06 14:51:25.836 INFO [stderr]   |
Dec 06 14:51:25.836 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 06 14:51:25.836 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 06 14:51:25.836 INFO [stderr]   |
Dec 06 14:51:25.836 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 14:51:25.836 INFO [stderr] 
Dec 06 14:51:25.984 INFO [stderr] warning: unused variable: `age`
Dec 06 14:51:25.984 INFO [stderr]  --> src/main.rs:7:13
Dec 06 14:51:25.984 INFO [stderr]   |
Dec 06 14:51:25.984 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 06 14:51:25.984 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 06 14:51:25.984 INFO [stderr]   |
Dec 06 14:51:25.984 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:51:25.984 INFO [stderr] 
Dec 06 14:51:25.984 INFO [stderr] warning: unused variable: `count`
Dec 06 14:51:25.984 INFO [stderr]   --> src/main.rs:64:6
Dec 06 14:51:25.984 INFO [stderr]    |
Dec 06 14:51:25.984 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 06 14:51:25.984 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 06 14:51:25.984 INFO [stderr] 
Dec 06 14:51:25.984 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 06 14:51:25.984 INFO [stderr]    --> src/main.rs:134:6
Dec 06 14:51:25.984 INFO [stderr]     |
Dec 06 14:51:25.984 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 06 14:51:25.984 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 06 14:51:25.984 INFO [stderr] 
Dec 06 14:51:25.984 INFO [stderr] warning: unused variable: `quicksilver`
Dec 06 14:51:25.984 INFO [stderr]    --> src/main.rs:172:6
Dec 06 14:51:25.984 INFO [stderr]     |
Dec 06 14:51:25.984 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 06 14:51:25.984 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 06 14:51:25.984 INFO [stderr] 
Dec 06 14:51:26.016 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:26.016 INFO [stderr]  --> src/main.rs:7:9
Dec 06 14:51:26.016 INFO [stderr]   |
Dec 06 14:51:26.016 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 06 14:51:26.016 INFO [stderr]   |         ----^^^
Dec 06 14:51:26.016 INFO [stderr]   |         |
Dec 06 14:51:26.016 INFO [stderr]   |         help: remove this `mut`
Dec 06 14:51:26.016 INFO [stderr]   |
Dec 06 14:51:26.016 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 06 14:51:26.016 INFO [stderr] 
Dec 06 14:51:26.016 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:26.016 INFO [stderr]   --> src/main.rs:18:6
Dec 06 14:51:26.016 INFO [stderr]    |
Dec 06 14:51:26.016 INFO [stderr] 18 |     let mut var = -4i32;
Dec 06 14:51:26.016 INFO [stderr]    |         ----^^^
Dec 06 14:51:26.016 INFO [stderr]    |         |
Dec 06 14:51:26.016 INFO [stderr]    |         help: remove this `mut`
Dec 06 14:51:26.016 INFO [stderr] 
Dec 06 14:51:26.016 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:26.016 INFO [stderr]    --> src/main.rs:153:6
Dec 06 14:51:26.016 INFO [stderr]     |
Dec 06 14:51:26.016 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 06 14:51:26.016 INFO [stderr]     |         ----^^^^^^^
Dec 06 14:51:26.016 INFO [stderr]     |         |
Dec 06 14:51:26.016 INFO [stderr]     |         help: remove this `mut`
Dec 06 14:51:26.016 INFO [stderr] 
Dec 06 14:51:26.016 INFO [stderr] warning: variable does not need to be mutable
Dec 06 14:51:26.016 INFO [stderr]    --> src/main.rs:166:6
Dec 06 14:51:26.016 INFO [stderr]     |
Dec 06 14:51:26.016 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 06 14:51:26.016 INFO [stderr]     |         ----^^^^^
Dec 06 14:51:26.016 INFO [stderr]     |         |
Dec 06 14:51:26.016 INFO [stderr]     |         help: remove this `mut`
Dec 06 14:51:26.016 INFO [stderr] 
Dec 06 14:51:26.381 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 06 14:51:26.383 INFO [stderr] su: No module specific data is present
Dec 06 14:51:27.119 INFO running `"docker" "inspect" "3f2038c5b2360c3e15133ea6b77d0af30f3e0190e530091d9a23859cf0769c57"`
Dec 06 14:51:27.396 INFO running `"docker" "rm" "-f" "3f2038c5b2360c3e15133ea6b77d0af30f3e0190e530091d9a23859cf0769c57"`
Dec 06 14:51:27.680 INFO [stdout] 3f2038c5b2360c3e15133ea6b77d0af30f3e0190e530091d9a23859cf0769c57
Dec 06 14:51:27.686 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 06 14:51:28.080 INFO [stdout] 2bc69f40f41ae801773551ea3ea796407f9bc12e1de2fdf7ff003708dc868725
Dec 06 14:51:28.082 INFO running `"docker" "start" "-a" "2bc69f40f41ae801773551ea3ea796407f9bc12e1de2fdf7ff003708dc868725"`
Dec 06 14:51:29.275 INFO [stderr] usermod: no changes
Dec 06 14:51:29.356 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 06 14:51:29.364 INFO [stderr]      Running /target/debug/deps/rust_example-f7722ad763f0f350
Dec 06 14:51:29.380 INFO [stdout] 
Dec 06 14:51:29.380 INFO [stdout] running 0 tests
Dec 06 14:51:29.380 INFO [stdout] 
Dec 06 14:51:29.380 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 14:51:29.380 INFO [stdout] 
Dec 06 14:51:29.384 INFO [stderr] su: No module specific data is present
Dec 06 14:51:30.345 INFO running `"docker" "inspect" "2bc69f40f41ae801773551ea3ea796407f9bc12e1de2fdf7ff003708dc868725"`
Dec 06 14:51:30.626 INFO running `"docker" "rm" "-f" "2bc69f40f41ae801773551ea3ea796407f9bc12e1de2fdf7ff003708dc868725"`
Dec 06 14:51:30.959 INFO [stdout] 2bc69f40f41ae801773551ea3ea796407f9bc12e1de2fdf7ff003708dc868725