Dec 12 02:21:09.894 INFO checking IGI-111/xit against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 02:21:09.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 02:21:10.245 INFO [stdout] 7b747ed83266b716b1714d6a4dde054b3d157631bbefaf0cdaf362251e0f03cb
Dec 12 02:21:10.247 INFO running `"docker" "start" "-a" "7b747ed83266b716b1714d6a4dde054b3d157631bbefaf0cdaf362251e0f03cb"`
Dec 12 02:21:10.915 INFO [stderr] usermod: no changes
Dec 12 02:21:11.003 INFO [stderr]     Checking termion v1.3.0
Dec 12 02:21:11.947 INFO [stderr]     Checking xit v0.1.0 (/source)
Dec 12 02:21:13.095 INFO [stderr] warning: unused imports: `Duration`, `Instant`
Dec 12 02:21:13.095 INFO [stderr]   --> src/main.rs:14:17
Dec 12 02:21:13.095 INFO [stderr]    |
Dec 12 02:21:13.095 INFO [stderr] 14 | use std::time::{Instant, Duration};
Dec 12 02:21:13.095 INFO [stderr]    |                 ^^^^^^^  ^^^^^^^^
Dec 12 02:21:13.095 INFO [stderr]    |
Dec 12 02:21:13.095 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 02:21:13.095 INFO [stderr] 
Dec 12 02:21:13.095 INFO [stderr] warning: unused import: `self`
Dec 12 02:21:13.095 INFO [stderr]   --> src/main.rs:15:23
Dec 12 02:21:13.095 INFO [stderr]    |
Dec 12 02:21:13.095 INFO [stderr] 15 | use std::sync::mpsc::{self, Receiver};
Dec 12 02:21:13.095 INFO [stderr]    |                       ^^^^
Dec 12 02:21:13.095 INFO [stderr] 
Dec 12 02:21:13.095 INFO [stderr] warning: unused import: `Read`
Dec 12 02:21:13.095 INFO [stderr]   --> src/main.rs:16:37
Dec 12 02:21:13.095 INFO [stderr]    |
Dec 12 02:21:13.095 INFO [stderr] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
Dec 12 02:21:13.095 INFO [stderr]    |                                     ^^^^
Dec 12 02:21:13.095 INFO [stderr] 
Dec 12 02:21:13.236 INFO [stderr] warning: unused imports: `Duration`, `Instant`
Dec 12 02:21:13.236 INFO [stderr]   --> src/main.rs:14:17
Dec 12 02:21:13.236 INFO [stderr]    |
Dec 12 02:21:13.237 INFO [stderr] 14 | use std::time::{Instant, Duration};
Dec 12 02:21:13.237 INFO [stderr]    |                 ^^^^^^^  ^^^^^^^^
Dec 12 02:21:13.237 INFO [stderr]    |
Dec 12 02:21:13.237 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 12 02:21:13.237 INFO [stderr] 
Dec 12 02:21:13.237 INFO [stderr] warning: unused import: `self`
Dec 12 02:21:13.238 INFO [stderr]   --> src/main.rs:15:23
Dec 12 02:21:13.238 INFO [stderr]    |
Dec 12 02:21:13.238 INFO [stderr] 15 | use std::sync::mpsc::{self, Receiver};
Dec 12 02:21:13.238 INFO [stderr]    |                       ^^^^
Dec 12 02:21:13.239 INFO [stderr] 
Dec 12 02:21:13.239 INFO [stderr] warning: unused import: `Read`
Dec 12 02:21:13.239 INFO [stderr]   --> src/main.rs:16:37
Dec 12 02:21:13.239 INFO [stderr]    |
Dec 12 02:21:13.240 INFO [stderr] 16 | use std::io::{stdin, stdout, Write, Read, BufWriter};
Dec 12 02:21:13.240 INFO [stderr]    |                                     ^^^^
Dec 12 02:21:13.240 INFO [stderr] 
Dec 12 02:21:13.517 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
Dec 12 02:21:13.524 INFO [stderr] su: No module specific data is present
Dec 12 02:21:14.411 INFO running `"docker" "inspect" "7b747ed83266b716b1714d6a4dde054b3d157631bbefaf0cdaf362251e0f03cb"`
Dec 12 02:21:14.738 INFO running `"docker" "rm" "-f" "7b747ed83266b716b1714d6a4dde054b3d157631bbefaf0cdaf362251e0f03cb"`
Dec 12 02:21:14.986 INFO [stdout] 7b747ed83266b716b1714d6a4dde054b3d157631bbefaf0cdaf362251e0f03cb