Dec 11 21:06:51.569 INFO checking ccqpein/random_choice against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 21:06:51.569 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 11 21:06:52.068 INFO [stdout] 9cc0e0fa09a788f6b5440e3585700e547b136d52dfe13af6f810a25d0aab88e1
Dec 11 21:06:52.068 INFO running `"docker" "start" "-a" "9cc0e0fa09a788f6b5440e3585700e547b136d52dfe13af6f810a25d0aab88e1"`
Dec 11 21:06:53.104 INFO [stderr] usermod: no changes
Dec 11 21:06:53.196 INFO [stderr]    Compiling serde v1.0.56
Dec 11 21:06:53.196 INFO [stderr]    Compiling serde_derive v1.0.56
Dec 11 21:07:12.726 INFO [stderr]     Checking serde_json v1.0.17
Dec 11 21:07:14.998 INFO [stderr]     Checking random_choice v0.1.0 (/source)
Dec 11 21:07:16.076 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 11 21:07:16.077 INFO [stderr]   --> src/lib.rs:10:5
Dec 11 21:07:16.077 INFO [stderr]    |
Dec 11 21:07:16.077 INFO [stderr] 10 | use std::collections::HashMap;
Dec 11 21:07:16.077 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:07:16.078 INFO [stderr]    |
Dec 11 21:07:16.078 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 21:07:16.078 INFO [stderr] 
Dec 11 21:07:16.128 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 11 21:07:16.129 INFO [stderr]   --> src/lib.rs:10:5
Dec 11 21:07:16.129 INFO [stderr]    |
Dec 11 21:07:16.129 INFO [stderr] 10 | use std::collections::HashMap;
Dec 11 21:07:16.129 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:07:16.130 INFO [stderr]    |
Dec 11 21:07:16.130 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 21:07:16.130 INFO [stderr] 
Dec 11 21:07:19.698 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.58s
Dec 11 21:07:19.703 INFO [stderr] su: No module specific data is present
Dec 11 21:07:20.452 INFO running `"docker" "inspect" "9cc0e0fa09a788f6b5440e3585700e547b136d52dfe13af6f810a25d0aab88e1"`
Dec 11 21:07:20.668 INFO running `"docker" "rm" "-f" "9cc0e0fa09a788f6b5440e3585700e547b136d52dfe13af6f810a25d0aab88e1"`
Dec 11 21:07:20.899 INFO [stdout] 9cc0e0fa09a788f6b5440e3585700e547b136d52dfe13af6f810a25d0aab88e1