Nov 30 03:47:40.207 INFO checking dyashkir/rust_hello against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 03:47:40.207 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 03:47:40.628 INFO [stdout] d5b42c1b76ec5102d9029fd5ec6a08de8164ffaec6efcd53303ed5e9de88d55d
Nov 30 03:47:40.630 INFO running `"docker" "start" "-a" "d5b42c1b76ec5102d9029fd5ec6a08de8164ffaec6efcd53303ed5e9de88d55d"`
Nov 30 03:47:41.748 INFO [stderr] usermod: no changes
Nov 30 03:47:41.854 INFO [stderr]     Checking hello_world v0.1.0 (/source)
Nov 30 03:47:42.544 INFO [stderr] warning: unused import: `std::io`
Nov 30 03:47:42.544 INFO [stderr]  --> src/main.rs:9:5
Nov 30 03:47:42.544 INFO [stderr]   |
Nov 30 03:47:42.544 INFO [stderr] 9 | use std::io;
Nov 30 03:47:42.544 INFO [stderr]   |     ^^^^^^^
Nov 30 03:47:42.544 INFO [stderr]   |
Nov 30 03:47:42.544 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 03:47:42.544 INFO [stderr] 
Nov 30 03:47:42.544 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 30 03:47:42.544 INFO [stderr]   --> src/main.rs:10:5
Nov 30 03:47:42.544 INFO [stderr]    |
Nov 30 03:47:42.544 INFO [stderr] 10 | use std::io::prelude::*;
Nov 30 03:47:42.544 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 30 03:47:42.544 INFO [stderr] 
Nov 30 03:47:42.544 INFO [stderr] warning: unused import: `std::fs::File`
Nov 30 03:47:42.544 INFO [stderr]   --> src/main.rs:11:5
Nov 30 03:47:42.544 INFO [stderr]    |
Nov 30 03:47:42.544 INFO [stderr] 11 | use std::fs::File;
Nov 30 03:47:42.544 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 03:47:42.544 INFO [stderr] 
Nov 30 03:47:42.592 INFO [stderr] warning: unused import: `std::io`
Nov 30 03:47:42.592 INFO [stderr]  --> src/main.rs:9:5
Nov 30 03:47:42.592 INFO [stderr]   |
Nov 30 03:47:42.592 INFO [stderr] 9 | use std::io;
Nov 30 03:47:42.592 INFO [stderr]   |     ^^^^^^^
Nov 30 03:47:42.592 INFO [stderr]   |
Nov 30 03:47:42.592 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 03:47:42.592 INFO [stderr] 
Nov 30 03:47:42.592 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 30 03:47:42.592 INFO [stderr]   --> src/main.rs:10:5
Nov 30 03:47:42.592 INFO [stderr]    |
Nov 30 03:47:42.592 INFO [stderr] 10 | use std::io::prelude::*;
Nov 30 03:47:42.592 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 30 03:47:42.592 INFO [stderr] 
Nov 30 03:47:42.592 INFO [stderr] warning: unused import: `std::fs::File`
Nov 30 03:47:42.592 INFO [stderr]   --> src/main.rs:11:5
Nov 30 03:47:42.592 INFO [stderr]    |
Nov 30 03:47:42.592 INFO [stderr] 11 | use std::fs::File;
Nov 30 03:47:42.592 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 30 03:47:42.592 INFO [stderr] 
Nov 30 03:47:42.652 INFO [stderr] warning: variable `v` is assigned to, but never used
Nov 30 03:47:42.652 INFO [stderr]   --> src/main.rs:49:17
Nov 30 03:47:42.652 INFO [stderr]    |
Nov 30 03:47:42.652 INFO [stderr] 49 |         let mut v = vec![0.0; 1000];
Nov 30 03:47:42.652 INFO [stderr]    |                 ^
Nov 30 03:47:42.652 INFO [stderr]    |
Nov 30 03:47:42.652 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 03:47:42.652 INFO [stderr]    = note: consider using `_v` instead
Nov 30 03:47:42.652 INFO [stderr] 
Nov 30 03:47:42.652 INFO [stderr] warning: value assigned to `v` is never read
Nov 30 03:47:42.652 INFO [stderr]   --> src/main.rs:50:9
Nov 30 03:47:42.652 INFO [stderr]    |
Nov 30 03:47:42.652 INFO [stderr] 50 |         v = record.unwrap();
Nov 30 03:47:42.652 INFO [stderr]    |         ^
Nov 30 03:47:42.652 INFO [stderr]    |
Nov 30 03:47:42.652 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 03:47:42.652 INFO [stderr] 
Nov 30 03:47:42.655 INFO [stderr] warning: variable `v` is assigned to, but never used
Nov 30 03:47:42.655 INFO [stderr]   --> src/main.rs:49:17
Nov 30 03:47:42.655 INFO [stderr]    |
Nov 30 03:47:42.655 INFO [stderr] 49 |         let mut v = vec![0.0; 1000];
Nov 30 03:47:42.655 INFO [stderr]    |                 ^
Nov 30 03:47:42.655 INFO [stderr]    |
Nov 30 03:47:42.655 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 03:47:42.655 INFO [stderr]    = note: consider using `_v` instead
Nov 30 03:47:42.655 INFO [stderr] 
Nov 30 03:47:42.656 INFO [stderr] warning: value assigned to `v` is never read
Nov 30 03:47:42.656 INFO [stderr]   --> src/main.rs:50:9
Nov 30 03:47:42.656 INFO [stderr]    |
Nov 30 03:47:42.656 INFO [stderr] 50 |         v = record.unwrap();
Nov 30 03:47:42.656 INFO [stderr]    |         ^
Nov 30 03:47:42.656 INFO [stderr]    |
Nov 30 03:47:42.656 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 30 03:47:42.656 INFO [stderr] 
Nov 30 03:47:42.697 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 30 03:47:42.700 INFO [stderr] su: No module specific data is present
Nov 30 03:47:43.508 INFO running `"docker" "inspect" "d5b42c1b76ec5102d9029fd5ec6a08de8164ffaec6efcd53303ed5e9de88d55d"`
Nov 30 03:47:43.826 INFO running `"docker" "rm" "-f" "d5b42c1b76ec5102d9029fd5ec6a08de8164ffaec6efcd53303ed5e9de88d55d"`
Nov 30 03:47:44.200 INFO [stdout] d5b42c1b76ec5102d9029fd5ec6a08de8164ffaec6efcd53303ed5e9de88d55d