Dec 17 21:43:12.389 INFO checking kaseiaoki/roar against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 21:43:12.389 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/kaseiaoki/roar:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:43:12.933 INFO [stdout] c05cebeb81f21013e1aea60f425f75c941f2eb56f150d08db27e5871a266c292
Dec 17 21:43:12.935 INFO running `"docker" "start" "-a" "c05cebeb81f21013e1aea60f425f75c941f2eb56f150d08db27e5871a266c292"`
Dec 17 21:43:15.626 INFO [stderr]     Checking roar v0.1.0 (/opt/crater/workdir)
Dec 17 21:43:15.932 INFO [stderr] warning: unused import: `std::io`
Dec 17 21:43:15.932 INFO [stderr]  --> src/main.rs:1:5
Dec 17 21:43:15.932 INFO [stderr]   |
Dec 17 21:43:15.932 INFO [stderr] 1 | use std::io;
Dec 17 21:43:15.932 INFO [stderr]   |     ^^^^^^^
Dec 17 21:43:15.932 INFO [stderr]   |
Dec 17 21:43:15.932 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:43:15.932 INFO [stderr] 
Dec 17 21:43:15.932 INFO [stderr] warning: unused import: `std::string::String`
Dec 17 21:43:15.933 INFO [stderr]  --> src/main.rs:2:5
Dec 17 21:43:15.933 INFO [stderr]   |
Dec 17 21:43:15.933 INFO [stderr] 2 | use std::string::String;
Dec 17 21:43:15.933 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 21:43:15.933 INFO [stderr] 
Dec 17 21:43:15.933 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 21:43:15.933 INFO [stderr]  --> src/main.rs:3:5
Dec 17 21:43:15.933 INFO [stderr]   |
Dec 17 21:43:15.933 INFO [stderr] 3 | use std::io::prelude::*;
Dec 17 21:43:15.933 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 21:43:15.933 INFO [stderr] 
Dec 17 21:43:15.933 INFO [stderr] warning: unused import: `std::env`
Dec 17 21:43:15.934 INFO [stderr]  --> src/main.rs:4:5
Dec 17 21:43:15.934 INFO [stderr]   |
Dec 17 21:43:15.934 INFO [stderr] 4 | use std::env;
Dec 17 21:43:15.934 INFO [stderr]   |     ^^^^^^^^
Dec 17 21:43:15.934 INFO [stderr] 
Dec 17 21:43:15.935 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 17 21:43:15.935 INFO [stderr]  --> src/main.rs:5:5
Dec 17 21:43:15.935 INFO [stderr]   |
Dec 17 21:43:15.935 INFO [stderr] 5 | use std::vec::Vec;
Dec 17 21:43:15.936 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 21:43:15.936 INFO [stderr] 
Dec 17 21:43:15.936 INFO [stderr] warning: unused import: `std::process`
Dec 17 21:43:15.936 INFO [stderr]  --> src/main.rs:7:5
Dec 17 21:43:15.940 INFO [stderr]   |
Dec 17 21:43:15.940 INFO [stderr] 7 | use std::process;
Dec 17 21:43:15.940 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 17 21:43:15.941 INFO [stderr] 
Dec 17 21:43:15.941 INFO [stderr] warning: unused import: `std::mem`
Dec 17 21:43:15.941 INFO [stderr]  --> src/main.rs:8:5
Dec 17 21:43:15.941 INFO [stderr]   |
Dec 17 21:43:15.941 INFO [stderr] 8 | use std::mem;
Dec 17 21:43:15.942 INFO [stderr]   |     ^^^^^^^^
Dec 17 21:43:15.942 INFO [stderr] 
Dec 17 21:43:15.952 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 17 21:43:15.952 INFO [stderr]   --> src/main.rs:14:5
Dec 17 21:43:15.953 INFO [stderr]    |
Dec 17 21:43:15.953 INFO [stderr] 14 |     thread::sleep_ms(3);
Dec 17 21:43:15.953 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 21:43:15.953 INFO [stderr]    |
Dec 17 21:43:15.953 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 21:43:15.954 INFO [stderr] 
Dec 17 21:43:15.964 INFO [stderr] warning: unused import: `std::io`
Dec 17 21:43:15.965 INFO [stderr]  --> src/main.rs:1:5
Dec 17 21:43:15.965 INFO [stderr]   |
Dec 17 21:43:15.965 INFO [stderr] 1 | use std::io;
Dec 17 21:43:15.965 INFO [stderr]   |     ^^^^^^^
Dec 17 21:43:15.965 INFO [stderr]   |
Dec 17 21:43:15.965 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 21:43:15.966 INFO [stderr] 
Dec 17 21:43:15.966 INFO [stderr] warning: unused import: `std::string::String`
Dec 17 21:43:15.966 INFO [stderr]  --> src/main.rs:2:5
Dec 17 21:43:15.966 INFO [stderr]   |
Dec 17 21:43:15.966 INFO [stderr] 2 | use std::string::String;
Dec 17 21:43:15.966 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 21:43:15.967 INFO [stderr] 
Dec 17 21:43:15.967 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 21:43:15.967 INFO [stderr]  --> src/main.rs:3:5
Dec 17 21:43:15.967 INFO [stderr]   |
Dec 17 21:43:15.967 INFO [stderr] 3 | use std::io::prelude::*;
Dec 17 21:43:15.967 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 21:43:15.968 INFO [stderr] 
Dec 17 21:43:15.968 INFO [stderr] warning: unused import: `std::env`
Dec 17 21:43:15.968 INFO [stderr]  --> src/main.rs:4:5
Dec 17 21:43:15.968 INFO [stderr]   |
Dec 17 21:43:15.968 INFO [stderr] 4 | use std::env;
Dec 17 21:43:15.969 INFO [stderr]   |     ^^^^^^^^
Dec 17 21:43:15.969 INFO [stderr] 
Dec 17 21:43:15.969 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 17 21:43:15.969 INFO [stderr]  --> src/main.rs:5:5
Dec 17 21:43:15.969 INFO [stderr]   |
Dec 17 21:43:15.969 INFO [stderr] 5 | use std::vec::Vec;
Dec 17 21:43:15.970 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 21:43:15.970 INFO [stderr] 
Dec 17 21:43:15.970 INFO [stderr] warning: unused import: `std::process`
Dec 17 21:43:15.970 INFO [stderr]  --> src/main.rs:7:5
Dec 17 21:43:15.970 INFO [stderr]   |
Dec 17 21:43:15.970 INFO [stderr] 7 | use std::process;
Dec 17 21:43:15.970 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 17 21:43:15.971 INFO [stderr] 
Dec 17 21:43:15.971 INFO [stderr] warning: unused import: `std::mem`
Dec 17 21:43:15.971 INFO [stderr]  --> src/main.rs:8:5
Dec 17 21:43:15.971 INFO [stderr]   |
Dec 17 21:43:15.971 INFO [stderr] 8 | use std::mem;
Dec 17 21:43:15.971 INFO [stderr]   |     ^^^^^^^^
Dec 17 21:43:15.972 INFO [stderr] 
Dec 17 21:43:15.983 INFO [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
Dec 17 21:43:15.983 INFO [stderr]   --> src/main.rs:14:5
Dec 17 21:43:15.983 INFO [stderr]    |
Dec 17 21:43:15.983 INFO [stderr] 14 |     thread::sleep_ms(3);
Dec 17 21:43:15.984 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 21:43:15.984 INFO [stderr]    |
Dec 17 21:43:15.984 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 17 21:43:15.984 INFO [stderr] 
Dec 17 21:43:16.016 INFO [stderr] warning: unused variable: `rng`
Dec 17 21:43:16.016 INFO [stderr]   --> src/main.rs:16:9
Dec 17 21:43:16.017 INFO [stderr]    |
Dec 17 21:43:16.017 INFO [stderr] 16 | fn roar(rng: u32) {
Dec 17 21:43:16.017 INFO [stderr]    |         ^^^ help: consider using `_rng` instead
Dec 17 21:43:16.017 INFO [stderr]    |
Dec 17 21:43:16.017 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:43:16.018 INFO [stderr] 
Dec 17 21:43:16.026 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:43:16.026 INFO [stderr]   --> src/main.rs:31:9
Dec 17 21:43:16.026 INFO [stderr]    |
Dec 17 21:43:16.026 INFO [stderr] 31 |     let mut rng = rand::thread_rng().gen_range(1, 71);
Dec 17 21:43:16.026 INFO [stderr]    |         ----^^^
Dec 17 21:43:16.027 INFO [stderr]    |         |
Dec 17 21:43:16.027 INFO [stderr]    |         help: remove this `mut`
Dec 17 21:43:16.027 INFO [stderr]    |
Dec 17 21:43:16.027 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:43:16.027 INFO [stderr] 
Dec 17 21:43:16.028 INFO [stderr] warning: variable `Em` should have a snake case name such as `em`
Dec 17 21:43:16.028 INFO [stderr]   --> src/main.rs:17:9
Dec 17 21:43:16.029 INFO [stderr]    |
Dec 17 21:43:16.029 INFO [stderr] 17 |     let Em = [
Dec 17 21:43:16.029 INFO [stderr]    |         ^^
Dec 17 21:43:16.029 INFO [stderr]    |
Dec 17 21:43:16.029 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 17 21:43:16.030 INFO [stderr] 
Dec 17 21:43:16.061 INFO [stderr] warning: unused variable: `rng`
Dec 17 21:43:16.061 INFO [stderr]   --> src/main.rs:16:9
Dec 17 21:43:16.061 INFO [stderr]    |
Dec 17 21:43:16.061 INFO [stderr] 16 | fn roar(rng: u32) {
Dec 17 21:43:16.061 INFO [stderr]    |         ^^^ help: consider using `_rng` instead
Dec 17 21:43:16.064 INFO [stderr]    |
Dec 17 21:43:16.065 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 21:43:16.065 INFO [stderr] 
Dec 17 21:43:16.093 INFO [stderr] warning: variable does not need to be mutable
Dec 17 21:43:16.093 INFO [stderr]   --> src/main.rs:31:9
Dec 17 21:43:16.093 INFO [stderr]    |
Dec 17 21:43:16.093 INFO [stderr] 31 |     let mut rng = rand::thread_rng().gen_range(1, 71);
Dec 17 21:43:16.093 INFO [stderr]    |         ----^^^
Dec 17 21:43:16.094 INFO [stderr]    |         |
Dec 17 21:43:16.094 INFO [stderr]    |         help: remove this `mut`
Dec 17 21:43:16.094 INFO [stderr]    |
Dec 17 21:43:16.094 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 21:43:16.094 INFO [stderr] 
Dec 17 21:43:16.094 INFO [stderr] warning: variable `Em` should have a snake case name such as `em`
Dec 17 21:43:16.095 INFO [stderr]   --> src/main.rs:17:9
Dec 17 21:43:16.095 INFO [stderr]    |
Dec 17 21:43:16.095 INFO [stderr] 17 |     let Em = [
Dec 17 21:43:16.095 INFO [stderr]    |         ^^
Dec 17 21:43:16.095 INFO [stderr]    |
Dec 17 21:43:16.096 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 17 21:43:16.096 INFO [stderr] 
Dec 17 21:43:16.133 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 17 21:43:17.442 INFO running `"docker" "inspect" "c05cebeb81f21013e1aea60f425f75c941f2eb56f150d08db27e5871a266c292"`
Dec 17 21:43:17.782 INFO running `"docker" "rm" "-f" "c05cebeb81f21013e1aea60f425f75c941f2eb56f150d08db27e5871a266c292"`
Dec 17 21:43:18.128 INFO [stdout] c05cebeb81f21013e1aea60f425f75c941f2eb56f150d08db27e5871a266c292