Dec 04 17:09:23.950 INFO checking irazorx1/markov_chain against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 17:09:23.950 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 17:09:24.319 INFO [stdout] baab4cb9d9dc06f98787a17071ac96931ae6179abb14599219d51f40a01ed5b3
Dec 04 17:09:24.342 INFO running `"docker" "start" "-a" "baab4cb9d9dc06f98787a17071ac96931ae6179abb14599219d51f40a01ed5b3"`
Dec 04 17:09:24.715 INFO [stderr] usermod: no changes
Dec 04 17:09:24.757 INFO [stderr]     Checking markov_chain v0.1.0 (/source)
Dec 04 17:09:25.028 INFO [stderr] warning: unused import: `std::io`
Dec 04 17:09:25.028 INFO [stderr]  --> src/main.rs:6:5
Dec 04 17:09:25.028 INFO [stderr]   |
Dec 04 17:09:25.028 INFO [stderr] 6 | use std::io;
Dec 04 17:09:25.028 INFO [stderr]   |     ^^^^^^^
Dec 04 17:09:25.028 INFO [stderr]   |
Dec 04 17:09:25.028 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:09:25.028 INFO [stderr] 
Dec 04 17:09:25.028 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 17:09:25.028 INFO [stderr]  --> src/main.rs:7:5
Dec 04 17:09:25.028 INFO [stderr]   |
Dec 04 17:09:25.028 INFO [stderr] 7 | use std::io::prelude::*;
Dec 04 17:09:25.028 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 17:09:25.028 INFO [stderr] 
Dec 04 17:09:25.028 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 17:09:25.028 INFO [stderr]  --> src/main.rs:8:5
Dec 04 17:09:25.028 INFO [stderr]   |
Dec 04 17:09:25.028 INFO [stderr] 8 | use std::fs::File;
Dec 04 17:09:25.028 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 17:09:25.028 INFO [stderr] 
Dec 04 17:09:25.097 INFO [stderr] warning: unused import: `std::io`
Dec 04 17:09:25.097 INFO [stderr]  --> src/main.rs:6:5
Dec 04 17:09:25.097 INFO [stderr]   |
Dec 04 17:09:25.097 INFO [stderr] 6 | use std::io;
Dec 04 17:09:25.097 INFO [stderr]   |     ^^^^^^^
Dec 04 17:09:25.097 INFO [stderr]   |
Dec 04 17:09:25.097 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 17:09:25.097 INFO [stderr] 
Dec 04 17:09:25.097 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 17:09:25.097 INFO [stderr]  --> src/main.rs:7:5
Dec 04 17:09:25.097 INFO [stderr]   |
Dec 04 17:09:25.097 INFO [stderr] 7 | use std::io::prelude::*;
Dec 04 17:09:25.098 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 04 17:09:25.098 INFO [stderr] 
Dec 04 17:09:25.099 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 17:09:25.099 INFO [stderr]  --> src/main.rs:8:5
Dec 04 17:09:25.099 INFO [stderr]   |
Dec 04 17:09:25.099 INFO [stderr] 8 | use std::fs::File;
Dec 04 17:09:25.099 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 17:09:25.099 INFO [stderr] 
Dec 04 17:09:25.113 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 17:09:25.113 INFO [stderr]  --> src/main.rs:1:12
Dec 04 17:09:25.113 INFO [stderr]   |
Dec 04 17:09:25.113 INFO [stderr] 1 | #![feature(fs_read_write)]
Dec 04 17:09:25.113 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 04 17:09:25.113 INFO [stderr]   |
Dec 04 17:09:25.113 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 17:09:25.113 INFO [stderr] 
Dec 04 17:09:25.171 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 04 17:09:25.171 INFO [stderr]  --> src/main.rs:1:12
Dec 04 17:09:25.171 INFO [stderr]   |
Dec 04 17:09:25.171 INFO [stderr] 1 | #![feature(fs_read_write)]
Dec 04 17:09:25.171 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 04 17:09:25.171 INFO [stderr]   |
Dec 04 17:09:25.171 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 04 17:09:25.171 INFO [stderr] 
Dec 04 17:09:25.188 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Dec 04 17:09:25.192 INFO [stderr] su: No module specific data is present
Dec 04 17:09:25.631 INFO running `"docker" "inspect" "baab4cb9d9dc06f98787a17071ac96931ae6179abb14599219d51f40a01ed5b3"`
Dec 04 17:09:25.716 INFO running `"docker" "rm" "-f" "baab4cb9d9dc06f98787a17071ac96931ae6179abb14599219d51f40a01ed5b3"`
Dec 04 17:09:25.802 INFO [stdout] baab4cb9d9dc06f98787a17071ac96931ae6179abb14599219d51f40a01ed5b3