Nov 30 03:47:40.225 INFO checking dyashkir/rust_hello against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 03:47:40.225 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-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"`
Nov 30 03:47:40.672 INFO [stdout] 33e5260e3c69f057c2368838b20038ea04ebaebfc3207a7bd5d2062adbbc9523
Nov 30 03:47:40.674 INFO running `"docker" "start" "-a" "33e5260e3c69f057c2368838b20038ea04ebaebfc3207a7bd5d2062adbbc9523"`
Nov 30 03:47:41.902 INFO [stderr] usermod: no changes
Nov 30 03:47:42.024 INFO [stderr]     Checking csv v0.15.0
Nov 30 03:47:42.984 INFO [stderr]     Checking hello_world v0.1.0 (/source)
Nov 30 03:47:43.536 INFO [stderr] warning: unused import: `std::io`
Nov 30 03:47:43.536 INFO [stderr]  --> src/main.rs:9:5
Nov 30 03:47:43.536 INFO [stderr]   |
Nov 30 03:47:43.536 INFO [stderr] 9 | use std::io;
Nov 30 03:47:43.536 INFO [stderr]   |     ^^^^^^^
Nov 30 03:47:43.536 INFO [stderr]   |
Nov 30 03:47:43.536 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 03:47:43.536 INFO [stderr] 
Nov 30 03:47:43.537 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 30 03:47:43.537 INFO [stderr]   --> src/main.rs:10:5
Nov 30 03:47:43.537 INFO [stderr]    |
Nov 30 03:47:43.537 INFO [stderr] 10 | use std::io::prelude::*;
Nov 30 03:47:43.537 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 30 03:47:43.537 INFO [stderr] 
Nov 30 03:47:43.537 INFO [stderr] warning: unused import: `std::fs::File`
Nov 30 03:47:43.537 INFO [stderr]   --> src/main.rs:11:5
Nov 30 03:47:43.537 INFO [stderr]    |
Nov 30 03:47:43.537 INFO [stderr] 11 | use std::fs::File;
Nov 30 03:47:43.537 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 03:47:43.537 INFO [stderr] 
Nov 30 03:47:43.576 INFO [stderr] warning: unused import: `std::io`
Nov 30 03:47:43.576 INFO [stderr]  --> src/main.rs:9:5
Nov 30 03:47:43.576 INFO [stderr]   |
Nov 30 03:47:43.576 INFO [stderr] 9 | use std::io;
Nov 30 03:47:43.576 INFO [stderr]   |     ^^^^^^^
Nov 30 03:47:43.576 INFO [stderr]   |
Nov 30 03:47:43.577 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 03:47:43.577 INFO [stderr] 
Nov 30 03:47:43.577 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 30 03:47:43.577 INFO [stderr]   --> src/main.rs:10:5
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr] 10 | use std::io::prelude::*;
Nov 30 03:47:43.577 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 30 03:47:43.577 INFO [stderr] 
Nov 30 03:47:43.577 INFO [stderr] warning: unused import: `std::fs::File`
Nov 30 03:47:43.577 INFO [stderr]   --> src/main.rs:11:5
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr] 11 | use std::fs::File;
Nov 30 03:47:43.577 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 03:47:43.577 INFO [stderr] 
Nov 30 03:47:43.577 INFO [stderr] warning: variable `v` is assigned to, but never used
Nov 30 03:47:43.577 INFO [stderr]   --> src/main.rs:49:17
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr] 49 |         let mut v = vec![0.0; 1000];
Nov 30 03:47:43.577 INFO [stderr]    |                 ^
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 03:47:43.577 INFO [stderr]    = note: consider using `_v` instead
Nov 30 03:47:43.577 INFO [stderr] 
Nov 30 03:47:43.577 INFO [stderr] warning: value assigned to `v` is never read
Nov 30 03:47:43.577 INFO [stderr]   --> src/main.rs:50:9
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr] 50 |         v = record.unwrap();
Nov 30 03:47:43.577 INFO [stderr]    |         ^
Nov 30 03:47:43.577 INFO [stderr]    |
Nov 30 03:47:43.577 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 03:47:43.577 INFO [stderr] 
Nov 30 03:47:43.633 INFO [stderr] warning: variable `v` is assigned to, but never used
Nov 30 03:47:43.633 INFO [stderr]   --> src/main.rs:49:17
Nov 30 03:47:43.633 INFO [stderr]    |
Nov 30 03:47:43.633 INFO [stderr] 49 |         let mut v = vec![0.0; 1000];
Nov 30 03:47:43.633 INFO [stderr]    |                 ^
Nov 30 03:47:43.633 INFO [stderr]    |
Nov 30 03:47:43.633 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 03:47:43.633 INFO [stderr]    = note: consider using `_v` instead
Nov 30 03:47:43.633 INFO [stderr] 
Nov 30 03:47:43.633 INFO [stderr] warning: value assigned to `v` is never read
Nov 30 03:47:43.633 INFO [stderr]   --> src/main.rs:50:9
Nov 30 03:47:43.633 INFO [stderr]    |
Nov 30 03:47:43.633 INFO [stderr] 50 |         v = record.unwrap();
Nov 30 03:47:43.633 INFO [stderr]    |         ^
Nov 30 03:47:43.633 INFO [stderr]    |
Nov 30 03:47:43.633 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 03:47:43.633 INFO [stderr] 
Nov 30 03:47:43.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
Nov 30 03:47:43.655 INFO [stderr] su: No module specific data is present
Nov 30 03:47:44.130 INFO running `"docker" "inspect" "33e5260e3c69f057c2368838b20038ea04ebaebfc3207a7bd5d2062adbbc9523"`
Nov 30 03:47:44.468 INFO running `"docker" "rm" "-f" "33e5260e3c69f057c2368838b20038ea04ebaebfc3207a7bd5d2062adbbc9523"`
Nov 30 03:47:44.792 INFO [stdout] 33e5260e3c69f057c2368838b20038ea04ebaebfc3207a7bd5d2062adbbc9523