Dec 14 11:14:57.611 INFO testing ConceptsDemo/rust-example against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 11:14:57.612 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 11:14:58.145 INFO [stdout] 758e5c7a1fc1c2e41e685cf13eba74b86c5f2f75025f203c2817c7b4782b5c1c
Dec 14 11:14:58.147 INFO running `"docker" "start" "-a" "758e5c7a1fc1c2e41e685cf13eba74b86c5f2f75025f203c2817c7b4782b5c1c"`
Dec 14 11:14:59.533 INFO [stderr] usermod: no changes
Dec 14 11:14:59.570 INFO [stderr]    Compiling rust-example v0.1.0 (/source)
Dec 14 11:15:00.054 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 14 11:15:00.054 INFO [stderr]  --> src/main.rs:1:15
Dec 14 11:15:00.054 INFO [stderr]   |
Dec 14 11:15:00.054 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 14 11:15:00.054 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 14 11:15:00.054 INFO [stderr]   |
Dec 14 11:15:00.054 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 11:15:00.054 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: unused variable: `age`
Dec 14 11:15:00.225 INFO [stderr]  --> src/main.rs:7:13
Dec 14 11:15:00.225 INFO [stderr]   |
Dec 14 11:15:00.225 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 14 11:15:00.225 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 14 11:15:00.225 INFO [stderr]   |
Dec 14 11:15:00.225 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: unused variable: `count`
Dec 14 11:15:00.225 INFO [stderr]   --> src/main.rs:64:6
Dec 14 11:15:00.225 INFO [stderr]    |
Dec 14 11:15:00.225 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 14 11:15:00.225 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 14 11:15:00.225 INFO [stderr]    --> src/main.rs:134:6
Dec 14 11:15:00.225 INFO [stderr]     |
Dec 14 11:15:00.225 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 14 11:15:00.225 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: unused variable: `quicksilver`
Dec 14 11:15:00.225 INFO [stderr]    --> src/main.rs:172:6
Dec 14 11:15:00.225 INFO [stderr]     |
Dec 14 11:15:00.225 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 14 11:15:00.225 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:00.225 INFO [stderr]  --> src/main.rs:7:9
Dec 14 11:15:00.225 INFO [stderr]   |
Dec 14 11:15:00.225 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 14 11:15:00.225 INFO [stderr]   |         ----^^^
Dec 14 11:15:00.225 INFO [stderr]   |         |
Dec 14 11:15:00.225 INFO [stderr]   |         help: remove this `mut`
Dec 14 11:15:00.225 INFO [stderr]   |
Dec 14 11:15:00.225 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:00.225 INFO [stderr]   --> src/main.rs:18:6
Dec 14 11:15:00.225 INFO [stderr]    |
Dec 14 11:15:00.225 INFO [stderr] 18 |     let mut var = -4i32;
Dec 14 11:15:00.225 INFO [stderr]    |         ----^^^
Dec 14 11:15:00.225 INFO [stderr]    |         |
Dec 14 11:15:00.225 INFO [stderr]    |         help: remove this `mut`
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:00.225 INFO [stderr]    --> src/main.rs:153:6
Dec 14 11:15:00.225 INFO [stderr]     |
Dec 14 11:15:00.225 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 14 11:15:00.225 INFO [stderr]     |         ----^^^^^^^
Dec 14 11:15:00.225 INFO [stderr]     |         |
Dec 14 11:15:00.225 INFO [stderr]     |         help: remove this `mut`
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.225 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:00.225 INFO [stderr]    --> src/main.rs:166:6
Dec 14 11:15:00.225 INFO [stderr]     |
Dec 14 11:15:00.225 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 14 11:15:00.225 INFO [stderr]     |         ----^^^^^
Dec 14 11:15:00.225 INFO [stderr]     |         |
Dec 14 11:15:00.225 INFO [stderr]     |         help: remove this `mut`
Dec 14 11:15:00.225 INFO [stderr] 
Dec 14 11:15:00.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 14 11:15:00.673 INFO [stderr] su: No module specific data is present
Dec 14 11:15:01.037 INFO running `"docker" "inspect" "758e5c7a1fc1c2e41e685cf13eba74b86c5f2f75025f203c2817c7b4782b5c1c"`
Dec 14 11:15:01.299 INFO running `"docker" "rm" "-f" "758e5c7a1fc1c2e41e685cf13eba74b86c5f2f75025f203c2817c7b4782b5c1c"`
Dec 14 11:15:01.618 INFO [stdout] 758e5c7a1fc1c2e41e685cf13eba74b86c5f2f75025f203c2817c7b4782b5c1c
Dec 14 11:15:01.621 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 11:15:02.052 INFO [stdout] 939cbdda3f25d68ecb1dc6a7efb34eab9355cbcd6604b1417057eb65e7b3ec91
Dec 14 11:15:02.054 INFO running `"docker" "start" "-a" "939cbdda3f25d68ecb1dc6a7efb34eab9355cbcd6604b1417057eb65e7b3ec91"`
Dec 14 11:15:03.311 INFO [stderr] usermod: no changes
Dec 14 11:15:03.367 INFO [stderr]    Compiling rust-example v0.1.0 (/source)
Dec 14 11:15:04.059 INFO [stderr] warning: unused imports: `f32`, `i16`, `i64`, `u16`, `u64`, `u8`, `usize`
Dec 14 11:15:04.059 INFO [stderr]  --> src/main.rs:1:15
Dec 14 11:15:04.059 INFO [stderr]   |
Dec 14 11:15:04.059 INFO [stderr] 1 | use std::{i8, i16, i32, i64, u8, u16, u32, u64, f32, f64, isize, usize};
Dec 14 11:15:04.059 INFO [stderr]   |               ^^^       ^^^  ^^  ^^^       ^^^  ^^^              ^^^^^
Dec 14 11:15:04.059 INFO [stderr]   |
Dec 14 11:15:04.059 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 11:15:04.059 INFO [stderr] 
Dec 14 11:15:04.219 INFO [stderr] warning: unused variable: `age`
Dec 14 11:15:04.219 INFO [stderr]  --> src/main.rs:7:13
Dec 14 11:15:04.219 INFO [stderr]   |
Dec 14 11:15:04.219 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 14 11:15:04.219 INFO [stderr]   |             ^^^ help: consider using `_age` instead
Dec 14 11:15:04.219 INFO [stderr]   |
Dec 14 11:15:04.219 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:15:04.219 INFO [stderr] 
Dec 14 11:15:04.219 INFO [stderr] warning: unused variable: `count`
Dec 14 11:15:04.219 INFO [stderr]   --> src/main.rs:64:6
Dec 14 11:15:04.219 INFO [stderr]    |
Dec 14 11:15:04.219 INFO [stderr] 64 |     let count = rand_string.chars().count();
Dec 14 11:15:04.219 INFO [stderr]    |         ^^^^^ help: consider using `_count` instead
Dec 14 11:15:04.219 INFO [stderr] 
Dec 14 11:15:04.219 INFO [stderr] warning: unused variable: `rand_tuple`
Dec 14 11:15:04.219 INFO [stderr]    --> src/main.rs:134:6
Dec 14 11:15:04.219 INFO [stderr]     |
Dec 14 11:15:04.219 INFO [stderr] 134 |     let rand_tuple = ("Vancir", 30);
Dec 14 11:15:04.219 INFO [stderr]     |         ^^^^^^^^^^ help: consider using `_rand_tuple` instead
Dec 14 11:15:04.219 INFO [stderr] 
Dec 14 11:15:04.219 INFO [stderr] warning: unused variable: `quicksilver`
Dec 14 11:15:04.219 INFO [stderr]    --> src/main.rs:172:6
Dec 14 11:15:04.219 INFO [stderr]     |
Dec 14 11:15:04.219 INFO [stderr] 172 |     let quicksilver = Hero::Fast;
Dec 14 11:15:04.219 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_quicksilver` instead
Dec 14 11:15:04.219 INFO [stderr] 
Dec 14 11:15:04.268 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:04.268 INFO [stderr]  --> src/main.rs:7:9
Dec 14 11:15:04.269 INFO [stderr]   |
Dec 14 11:15:04.269 INFO [stderr] 7 |     let mut age : u32 = 100; 
Dec 14 11:15:04.269 INFO [stderr]   |         ----^^^
Dec 14 11:15:04.269 INFO [stderr]   |         |
Dec 14 11:15:04.269 INFO [stderr]   |         help: remove this `mut`
Dec 14 11:15:04.269 INFO [stderr]   |
Dec 14 11:15:04.269 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 14 11:15:04.269 INFO [stderr] 
Dec 14 11:15:04.269 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:04.269 INFO [stderr]   --> src/main.rs:18:6
Dec 14 11:15:04.269 INFO [stderr]    |
Dec 14 11:15:04.269 INFO [stderr] 18 |     let mut var = -4i32;
Dec 14 11:15:04.269 INFO [stderr]    |         ----^^^
Dec 14 11:15:04.269 INFO [stderr]    |         |
Dec 14 11:15:04.269 INFO [stderr]    |         help: remove this `mut`
Dec 14 11:15:04.269 INFO [stderr] 
Dec 14 11:15:04.269 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:04.269 INFO [stderr]    --> src/main.rs:153:6
Dec 14 11:15:04.269 INFO [stderr]     |
Dec 14 11:15:04.269 INFO [stderr] 153 |     let mut circle1 = Circle {
Dec 14 11:15:04.269 INFO [stderr]     |         ----^^^^^^^
Dec 14 11:15:04.269 INFO [stderr]     |         |
Dec 14 11:15:04.269 INFO [stderr]     |         help: remove this `mut`
Dec 14 11:15:04.269 INFO [stderr] 
Dec 14 11:15:04.269 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:15:04.269 INFO [stderr]    --> src/main.rs:166:6
Dec 14 11:15:04.269 INFO [stderr]     |
Dec 14 11:15:04.269 INFO [stderr] 166 |     let mut rect1 = Rectangle {
Dec 14 11:15:04.269 INFO [stderr]     |         ----^^^^^
Dec 14 11:15:04.269 INFO [stderr]     |         |
Dec 14 11:15:04.269 INFO [stderr]     |         help: remove this `mut`
Dec 14 11:15:04.269 INFO [stderr] 
Dec 14 11:15:04.769 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
Dec 14 11:15:04.771 INFO [stderr] su: No module specific data is present
Dec 14 11:15:05.476 INFO running `"docker" "inspect" "939cbdda3f25d68ecb1dc6a7efb34eab9355cbcd6604b1417057eb65e7b3ec91"`
Dec 14 11:15:05.743 INFO running `"docker" "rm" "-f" "939cbdda3f25d68ecb1dc6a7efb34eab9355cbcd6604b1417057eb65e7b3ec91"`
Dec 14 11:15:05.932 INFO [stdout] 939cbdda3f25d68ecb1dc6a7efb34eab9355cbcd6604b1417057eb65e7b3ec91
Dec 14 11:15:05.939 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 14 11:15:06.275 INFO [stdout] 318c11f8592515b250448d11163370c1a73a1b8960e5fb1f74a40df58671dd96
Dec 14 11:15:06.280 INFO running `"docker" "start" "-a" "318c11f8592515b250448d11163370c1a73a1b8960e5fb1f74a40df58671dd96"`
Dec 14 11:15:06.858 INFO [stderr] usermod: no changes
Dec 14 11:15:06.884 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 14 11:15:06.884 INFO [stderr]      Running /target/debug/deps/rust_example-6b7133f08a37ca45
Dec 14 11:15:06.892 INFO [stdout] 
Dec 14 11:15:06.892 INFO [stdout] running 0 tests
Dec 14 11:15:06.892 INFO [stdout] 
Dec 14 11:15:06.892 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 11:15:06.892 INFO [stdout] 
Dec 14 11:15:06.893 INFO [stderr] su: No module specific data is present
Dec 14 11:15:07.133 INFO running `"docker" "inspect" "318c11f8592515b250448d11163370c1a73a1b8960e5fb1f74a40df58671dd96"`
Dec 14 11:15:07.220 INFO running `"docker" "rm" "-f" "318c11f8592515b250448d11163370c1a73a1b8960e5fb1f74a40df58671dd96"`
Dec 14 11:15:07.308 INFO [stdout] 318c11f8592515b250448d11163370c1a73a1b8960e5fb1f74a40df58671dd96