Dec 04 20:52:47.856 INFO checking clD11/rust-katas against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:52:47.856 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 20:52:48.279 INFO [stdout] 6ad259e9997b108765649af8312d6655aa82eb867983b3dfd0a896299bd50bdd
Dec 04 20:52:48.284 INFO running `"docker" "start" "-a" "6ad259e9997b108765649af8312d6655aa82eb867983b3dfd0a896299bd50bdd"`
Dec 04 20:52:49.369 INFO [stderr] usermod: no changes
Dec 04 20:52:49.434 INFO [stderr]     Checking rust-katas v0.1.0 (/source)
Dec 04 20:52:49.966 INFO [stderr] warning: unused import: `std::io`
Dec 04 20:52:49.966 INFO [stderr]  --> src/main.rs:3:5
Dec 04 20:52:49.966 INFO [stderr]   |
Dec 04 20:52:49.966 INFO [stderr] 3 | use std::io;
Dec 04 20:52:49.966 INFO [stderr]   |     ^^^^^^^
Dec 04 20:52:49.966 INFO [stderr]   |
Dec 04 20:52:49.966 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:52:49.966 INFO [stderr] 
Dec 04 20:52:49.966 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 20:52:49.966 INFO [stderr]  --> src/main.rs:4:5
Dec 04 20:52:49.966 INFO [stderr]   |
Dec 04 20:52:49.966 INFO [stderr] 4 | use rand::Rng;
Dec 04 20:52:49.966 INFO [stderr]   |     ^^^^^^^^^
Dec 04 20:52:49.966 INFO [stderr] 
Dec 04 20:52:49.966 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 04 20:52:49.966 INFO [stderr]  --> src/main.rs:5:5
Dec 04 20:52:49.966 INFO [stderr]   |
Dec 04 20:52:49.966 INFO [stderr] 5 | use std::cmp::Ordering;
Dec 04 20:52:49.966 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 20:52:49.966 INFO [stderr] 
Dec 04 20:52:49.976 INFO [stderr] warning: unused import: `std::io`
Dec 04 20:52:49.976 INFO [stderr]  --> src/main.rs:3:5
Dec 04 20:52:49.976 INFO [stderr]   |
Dec 04 20:52:49.976 INFO [stderr] 3 | use std::io;
Dec 04 20:52:49.976 INFO [stderr]   |     ^^^^^^^
Dec 04 20:52:49.976 INFO [stderr]   |
Dec 04 20:52:49.976 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 20:52:49.976 INFO [stderr] 
Dec 04 20:52:49.976 INFO [stderr] warning: unused import: `rand::Rng`
Dec 04 20:52:49.976 INFO [stderr]  --> src/main.rs:4:5
Dec 04 20:52:49.976 INFO [stderr]   |
Dec 04 20:52:49.976 INFO [stderr] 4 | use rand::Rng;
Dec 04 20:52:49.976 INFO [stderr]   |     ^^^^^^^^^
Dec 04 20:52:49.976 INFO [stderr] 
Dec 04 20:52:49.976 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 04 20:52:49.976 INFO [stderr]  --> src/main.rs:5:5
Dec 04 20:52:49.976 INFO [stderr]   |
Dec 04 20:52:49.976 INFO [stderr] 5 | use std::cmp::Ordering;
Dec 04 20:52:49.976 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 20:52:49.976 INFO [stderr] 
Dec 04 20:52:50.033 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 04 20:52:50.036 INFO [stderr] su: No module specific data is present
Dec 04 20:52:50.911 INFO running `"docker" "inspect" "6ad259e9997b108765649af8312d6655aa82eb867983b3dfd0a896299bd50bdd"`
Dec 04 20:52:51.208 INFO running `"docker" "rm" "-f" "6ad259e9997b108765649af8312d6655aa82eb867983b3dfd0a896299bd50bdd"`
Dec 04 20:52:51.543 INFO [stdout] 6ad259e9997b108765649af8312d6655aa82eb867983b3dfd0a896299bd50bdd