Dec 17 22:49:06.244 INFO checking irazorx1/markov_chain against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 22:49:06.244 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/irazorx1/markov_chain:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:49:06.444 INFO [stdout] 5d7ed8e111f9a6f1d373839fc9764649c8dfa57b771e90f5ae1d9a46cccaed0d
Dec 17 22:49:06.446 INFO running `"docker" "start" "-a" "5d7ed8e111f9a6f1d373839fc9764649c8dfa57b771e90f5ae1d9a46cccaed0d"`
Dec 17 22:49:07.152 INFO [stderr]     Checking markov_chain v0.1.0 (/opt/crater/workdir)
Dec 17 22:49:07.309 INFO [stderr] warning: unused import: `std::io`
Dec 17 22:49:07.309 INFO [stderr]  --> src/main.rs:6:5
Dec 17 22:49:07.309 INFO [stderr]   |
Dec 17 22:49:07.309 INFO [stderr] 6 | use std::io;
Dec 17 22:49:07.309 INFO [stderr]   |     ^^^^^^^
Dec 17 22:49:07.309 INFO [stderr]   |
Dec 17 22:49:07.309 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:49:07.309 INFO [stderr] 
Dec 17 22:49:07.309 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 22:49:07.309 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:49:07.309 INFO [stderr]   |
Dec 17 22:49:07.309 INFO [stderr] 7 | use std::io::prelude::*;
Dec 17 22:49:07.309 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 22:49:07.309 INFO [stderr] 
Dec 17 22:49:07.309 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 22:49:07.309 INFO [stderr]  --> src/main.rs:8:5
Dec 17 22:49:07.309 INFO [stderr]   |
Dec 17 22:49:07.309 INFO [stderr] 8 | use std::fs::File;
Dec 17 22:49:07.309 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:49:07.309 INFO [stderr] 
Dec 17 22:49:07.338 INFO [stderr] warning: unused import: `std::io`
Dec 17 22:49:07.338 INFO [stderr]  --> src/main.rs:6:5
Dec 17 22:49:07.338 INFO [stderr]   |
Dec 17 22:49:07.338 INFO [stderr] 6 | use std::io;
Dec 17 22:49:07.338 INFO [stderr]   |     ^^^^^^^
Dec 17 22:49:07.338 INFO [stderr]   |
Dec 17 22:49:07.338 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 22:49:07.338 INFO [stderr] 
Dec 17 22:49:07.338 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 17 22:49:07.338 INFO [stderr]  --> src/main.rs:7:5
Dec 17 22:49:07.338 INFO [stderr]   |
Dec 17 22:49:07.338 INFO [stderr] 7 | use std::io::prelude::*;
Dec 17 22:49:07.338 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 17 22:49:07.338 INFO [stderr] 
Dec 17 22:49:07.338 INFO [stderr] warning: unused import: `std::fs::File`
Dec 17 22:49:07.338 INFO [stderr]  --> src/main.rs:8:5
Dec 17 22:49:07.338 INFO [stderr]   |
Dec 17 22:49:07.338 INFO [stderr] 8 | use std::fs::File;
Dec 17 22:49:07.338 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 22:49:07.338 INFO [stderr] 
Dec 17 22:49:07.372 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 22:49:07.372 INFO [stderr]  --> src/main.rs:1:12
Dec 17 22:49:07.372 INFO [stderr]   |
Dec 17 22:49:07.372 INFO [stderr] 1 | #![feature(fs_read_write)]
Dec 17 22:49:07.372 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 17 22:49:07.372 INFO [stderr]   |
Dec 17 22:49:07.372 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 22:49:07.372 INFO [stderr] 
Dec 17 22:49:07.393 INFO [stderr] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 17 22:49:07.393 INFO [stderr]  --> src/main.rs:1:12
Dec 17 22:49:07.393 INFO [stderr]   |
Dec 17 22:49:07.393 INFO [stderr] 1 | #![feature(fs_read_write)]
Dec 17 22:49:07.393 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 17 22:49:07.393 INFO [stderr]   |
Dec 17 22:49:07.393 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 17 22:49:07.393 INFO [stderr] 
Dec 17 22:49:07.407 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
Dec 17 22:49:07.727 INFO running `"docker" "inspect" "5d7ed8e111f9a6f1d373839fc9764649c8dfa57b771e90f5ae1d9a46cccaed0d"`
Dec 17 22:49:07.878 INFO running `"docker" "rm" "-f" "5d7ed8e111f9a6f1d373839fc9764649c8dfa57b771e90f5ae1d9a46cccaed0d"`
Dec 17 22:49:07.970 INFO [stdout] 5d7ed8e111f9a6f1d373839fc9764649c8dfa57b771e90f5ae1d9a46cccaed0d