Nov 28 03:51:07.531 INFO checking irazorx1/markov_chain against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 03:51:07.531 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 03:51:07.989 INFO [stdout] c1a164e399e00d2fa2a053939d7bba78c309dbd0f524c4f38e995ebc6b5f7d54
Nov 28 03:51:07.991 INFO running `"docker" "start" "-a" "c1a164e399e00d2fa2a053939d7bba78c309dbd0f524c4f38e995ebc6b5f7d54"`
Nov 28 03:51:09.361 INFO [stderr] usermod: no changes
Nov 28 03:51:09.406 INFO [stderr]     Checking markov_chain v0.1.0 (/source)
Nov 28 03:51:09.772 INFO [stderr] warning: unused import: `std::io`
Nov 28 03:51:09.772 INFO [stderr]  --> src/main.rs:6:5
Nov 28 03:51:09.772 INFO [stderr]   |
Nov 28 03:51:09.772 INFO [stderr] 6 | use std::io;
Nov 28 03:51:09.772 INFO [stderr]   |     ^^^^^^^
Nov 28 03:51:09.772 INFO [stderr]   |
Nov 28 03:51:09.772 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:51:09.772 INFO [stderr] 
Nov 28 03:51:09.772 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 03:51:09.772 INFO [stderr]  --> src/main.rs:7:5
Nov 28 03:51:09.772 INFO [stderr]   |
Nov 28 03:51:09.772 INFO [stderr] 7 | use std::io::prelude::*;
Nov 28 03:51:09.772 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 03:51:09.772 INFO [stderr] 
Nov 28 03:51:09.772 INFO [stderr] warning: unused import: `std::fs::File`
Nov 28 03:51:09.772 INFO [stderr]  --> src/main.rs:8:5
Nov 28 03:51:09.772 INFO [stderr]   |
Nov 28 03:51:09.772 INFO [stderr] 8 | use std::fs::File;
Nov 28 03:51:09.772 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 28 03:51:09.772 INFO [stderr] 
Nov 28 03:51:09.856 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 28 03:51:09.856 INFO [stderr]  --> src/main.rs:1:12
Nov 28 03:51:09.868 INFO [stderr]   |
Nov 28 03:51:09.869 INFO [stderr] 1 | #![feature(fs_read_write)]
Nov 28 03:51:09.869 INFO [stderr]   |            ^^^^^^^^^^^^^
Nov 28 03:51:09.869 INFO [stderr]   |
Nov 28 03:51:09.870 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 28 03:51:09.871 INFO [stderr] 
Nov 28 03:51:09.881 INFO [stderr] warning: unused import: `std::io`
Nov 28 03:51:09.881 INFO [stderr]  --> src/main.rs:6:5
Nov 28 03:51:09.881 INFO [stderr]   |
Nov 28 03:51:09.881 INFO [stderr] 6 | use std::io;
Nov 28 03:51:09.881 INFO [stderr]   |     ^^^^^^^
Nov 28 03:51:09.889 INFO [stderr]   |
Nov 28 03:51:09.890 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:51:09.890 INFO [stderr] 
Nov 28 03:51:09.891 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 28 03:51:09.891 INFO [stderr]  --> src/main.rs:7:5
Nov 28 03:51:09.891 INFO [stderr]   |
Nov 28 03:51:09.891 INFO [stderr] 7 | use std::io::prelude::*;
Nov 28 03:51:09.891 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 03:51:09.896 INFO [stderr] 
Nov 28 03:51:09.896 INFO [stderr] warning: unused import: `std::fs::File`
Nov 28 03:51:09.896 INFO [stderr]  --> src/main.rs:8:5
Nov 28 03:51:09.896 INFO [stderr]   |
Nov 28 03:51:09.896 INFO [stderr] 8 | use std::fs::File;
Nov 28 03:51:09.896 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 28 03:51:09.896 INFO [stderr] 
Nov 28 03:51:09.978 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 28 03:51:09.979 INFO [stderr]  --> src/main.rs:1:12
Nov 28 03:51:09.979 INFO [stderr]   |
Nov 28 03:51:09.979 INFO [stderr] 1 | #![feature(fs_read_write)]
Nov 28 03:51:09.979 INFO [stderr]   |            ^^^^^^^^^^^^^
Nov 28 03:51:09.979 INFO [stderr]   |
Nov 28 03:51:09.979 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 28 03:51:09.979 INFO [stderr] 
Nov 28 03:51:10.000 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Nov 28 03:51:10.004 INFO [stderr] su: No module specific data is present
Nov 28 03:51:10.634 INFO running `"docker" "inspect" "c1a164e399e00d2fa2a053939d7bba78c309dbd0f524c4f38e995ebc6b5f7d54"`
Nov 28 03:51:10.751 INFO running `"docker" "rm" "-f" "c1a164e399e00d2fa2a053939d7bba78c309dbd0f524c4f38e995ebc6b5f7d54"`
Nov 28 03:51:10.861 INFO [stdout] c1a164e399e00d2fa2a053939d7bba78c309dbd0f524c4f38e995ebc6b5f7d54