Oct 12 20:16:13.549 INFO checking irazorx1/markov_chain against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 20:16:13.549 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 12 20:16:13.941 INFO blam! 72d6058b52475fcc2992b01b0dc309e878f1fc434a64930531edd48d607ea29f
Oct 12 20:16:13.946 INFO running `"docker" "start" "-a" "72d6058b52475fcc2992b01b0dc309e878f1fc434a64930531edd48d607ea29f"`
Oct 12 20:16:14.582 INFO kablam! usermod: no changes
Oct 12 20:16:14.621 INFO kablam!     Checking markov_chain v0.1.0 (/source)
Oct 12 20:16:14.975 INFO kablam! warning: unused import: `std::io`
Oct 12 20:16:14.975 INFO kablam!  --> src/main.rs:6:5
Oct 12 20:16:14.975 INFO kablam!   |
Oct 12 20:16:14.975 INFO kablam! 6 | use std::io;
Oct 12 20:16:14.975 INFO kablam!   |     ^^^^^^^
Oct 12 20:16:14.975 INFO kablam!   |
Oct 12 20:16:14.975 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:16:14.975 INFO kablam! 
Oct 12 20:16:14.975 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 12 20:16:14.975 INFO kablam!  --> src/main.rs:7:5
Oct 12 20:16:14.975 INFO kablam!   |
Oct 12 20:16:14.976 INFO kablam! 7 | use std::io::prelude::*;
Oct 12 20:16:14.976 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^
Oct 12 20:16:14.976 INFO kablam! 
Oct 12 20:16:14.976 INFO kablam! warning: unused import: `std::fs::File`
Oct 12 20:16:14.976 INFO kablam!  --> src/main.rs:8:5
Oct 12 20:16:14.976 INFO kablam!   |
Oct 12 20:16:14.976 INFO kablam! 8 | use std::fs::File;
Oct 12 20:16:14.976 INFO kablam!   |     ^^^^^^^^^^^^^
Oct 12 20:16:14.976 INFO kablam! 
Oct 12 20:16:15.034 INFO kablam! warning: unused import: `std::io`
Oct 12 20:16:15.034 INFO kablam!  --> src/main.rs:6:5
Oct 12 20:16:15.034 INFO kablam!   |
Oct 12 20:16:15.034 INFO kablam! 6 | use std::io;
Oct 12 20:16:15.034 INFO kablam!   |     ^^^^^^^
Oct 12 20:16:15.034 INFO kablam!   |
Oct 12 20:16:15.034 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:16:15.034 INFO kablam! 
Oct 12 20:16:15.034 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 12 20:16:15.034 INFO kablam!  --> src/main.rs:7:5
Oct 12 20:16:15.034 INFO kablam!   |
Oct 12 20:16:15.034 INFO kablam! 7 | use std::io::prelude::*;
Oct 12 20:16:15.035 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^
Oct 12 20:16:15.035 INFO kablam! 
Oct 12 20:16:15.035 INFO kablam! warning: unused import: `std::fs::File`
Oct 12 20:16:15.035 INFO kablam!  --> src/main.rs:8:5
Oct 12 20:16:15.035 INFO kablam!   |
Oct 12 20:16:15.035 INFO kablam! 8 | use std::fs::File;
Oct 12 20:16:15.035 INFO kablam!   |     ^^^^^^^^^^^^^
Oct 12 20:16:15.035 INFO kablam! 
Oct 12 20:16:15.044 INFO kablam! warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Oct 12 20:16:15.044 INFO kablam!  --> src/main.rs:1:12
Oct 12 20:16:15.045 INFO kablam!   |
Oct 12 20:16:15.045 INFO kablam! 1 | #![feature(fs_read_write)]
Oct 12 20:16:15.045 INFO kablam!   |            ^^^^^^^^^^^^^
Oct 12 20:16:15.045 INFO kablam!   |
Oct 12 20:16:15.045 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 20:16:15.045 INFO kablam! 
Oct 12 20:16:15.112 INFO kablam! warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Oct 12 20:16:15.112 INFO kablam!  --> src/main.rs:1:12
Oct 12 20:16:15.112 INFO kablam!   |
Oct 12 20:16:15.112 INFO kablam! 1 | #![feature(fs_read_write)]
Oct 12 20:16:15.112 INFO kablam!   |            ^^^^^^^^^^^^^
Oct 12 20:16:15.112 INFO kablam!   |
Oct 12 20:16:15.112 INFO kablam!   = note: #[warn(stable_features)] on by default
Oct 12 20:16:15.112 INFO kablam! 
Oct 12 20:16:15.129 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Oct 12 20:16:15.132 INFO kablam! su: No module specific data is present
Oct 12 20:16:15.442 INFO running `"docker" "rm" "-f" "72d6058b52475fcc2992b01b0dc309e878f1fc434a64930531edd48d607ea29f"`
Oct 12 20:16:15.548 INFO blam! 72d6058b52475fcc2992b01b0dc309e878f1fc434a64930531edd48d607ea29f