Dec 19 18:58:24.809 INFO checking clD11/rust-katas against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:58:24.809 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/clD11/rust-katas:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:58:25.112 INFO [stdout] 8a57078cd0dc4dba44874fe93678a419fb1bc97e3557f571b9c606d8ea1c9c90
Dec 19 18:58:25.120 INFO running `"docker" "start" "-a" "8a57078cd0dc4dba44874fe93678a419fb1bc97e3557f571b9c606d8ea1c9c90"`
Dec 19 18:58:25.900 INFO [stderr]     Checking rust-katas v0.1.0 (/opt/crater/workdir)
Dec 19 18:58:26.080 INFO [stderr] warning: unused import: `std::io`
Dec 19 18:58:26.080 INFO [stderr]  --> src/main.rs:3:5
Dec 19 18:58:26.080 INFO [stderr]   |
Dec 19 18:58:26.080 INFO [stderr] 3 | use std::io;
Dec 19 18:58:26.080 INFO [stderr]   |     ^^^^^^^
Dec 19 18:58:26.080 INFO [stderr]   |
Dec 19 18:58:26.080 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:58:26.080 INFO [stderr] 
Dec 19 18:58:26.080 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 18:58:26.080 INFO [stderr]  --> src/main.rs:4:5
Dec 19 18:58:26.080 INFO [stderr]   |
Dec 19 18:58:26.080 INFO [stderr] 4 | use rand::Rng;
Dec 19 18:58:26.080 INFO [stderr]   |     ^^^^^^^^^
Dec 19 18:58:26.080 INFO [stderr] 
Dec 19 18:58:26.080 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 19 18:58:26.080 INFO [stderr]  --> src/main.rs:5:5
Dec 19 18:58:26.080 INFO [stderr]   |
Dec 19 18:58:26.080 INFO [stderr] 5 | use std::cmp::Ordering;
Dec 19 18:58:26.080 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 18:58:26.080 INFO [stderr] 
Dec 19 18:58:26.188 INFO [stderr] warning: unused import: `std::io`
Dec 19 18:58:26.188 INFO [stderr]  --> src/main.rs:3:5
Dec 19 18:58:26.188 INFO [stderr]   |
Dec 19 18:58:26.188 INFO [stderr] 3 | use std::io;
Dec 19 18:58:26.188 INFO [stderr]   |     ^^^^^^^
Dec 19 18:58:26.188 INFO [stderr]   |
Dec 19 18:58:26.188 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:58:26.188 INFO [stderr] 
Dec 19 18:58:26.188 INFO [stderr] warning: unused import: `rand::Rng`
Dec 19 18:58:26.188 INFO [stderr]  --> src/main.rs:4:5
Dec 19 18:58:26.188 INFO [stderr]   |
Dec 19 18:58:26.188 INFO [stderr] 4 | use rand::Rng;
Dec 19 18:58:26.188 INFO [stderr]   |     ^^^^^^^^^
Dec 19 18:58:26.189 INFO [stderr] 
Dec 19 18:58:26.189 INFO [stderr] warning: unused import: `std::cmp::Ordering`
Dec 19 18:58:26.189 INFO [stderr]  --> src/main.rs:5:5
Dec 19 18:58:26.189 INFO [stderr]   |
Dec 19 18:58:26.189 INFO [stderr] 5 | use std::cmp::Ordering;
Dec 19 18:58:26.189 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 18:58:26.189 INFO [stderr] 
Dec 19 18:58:26.202 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
Dec 19 18:58:26.594 INFO running `"docker" "inspect" "8a57078cd0dc4dba44874fe93678a419fb1bc97e3557f571b9c606d8ea1c9c90"`
Dec 19 18:58:26.760 INFO running `"docker" "rm" "-f" "8a57078cd0dc4dba44874fe93678a419fb1bc97e3557f571b9c606d8ea1c9c90"`
Dec 19 18:58:27.021 INFO [stdout] 8a57078cd0dc4dba44874fe93678a419fb1bc97e3557f571b9c606d8ea1c9c90