Dec 04 14:20:10.797 INFO checking mcast/markdown-chapterise against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:20:10.797 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 14:20:11.068 INFO [stdout] f66722abb31ab378309dfc623b2c955c290197f21d91e913d52fb349dc11a862
Dec 04 14:20:11.077 INFO running `"docker" "start" "-a" "f66722abb31ab378309dfc623b2c955c290197f21d91e913d52fb349dc11a862"`
Dec 04 14:20:11.871 INFO [stderr] usermod: no changes
Dec 04 14:20:11.931 INFO [stderr]     Checking markdown-chapterise v0.0.1 (/source)
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:1:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 1 | use std::cell::RefCell;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::iter::FilterMap`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:5:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 5 | use std::iter::FilterMap;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::io::Lines`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:6:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 6 | use std::io::Lines;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::io::BufReader`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:7:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 7 | use std::io::BufReader;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:8:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 8 | use std::fs::File;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:1:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 1 | use std::cell::RefCell;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::iter::FilterMap`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:5:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 5 | use std::iter::FilterMap;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::io::Lines`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:6:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 6 | use std::io::Lines;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 04 14:20:12.199 INFO [stderr] 
Dec 04 14:20:12.199 INFO [stderr] warning: unused import: `std::io::BufReader`
Dec 04 14:20:12.199 INFO [stderr]  --> src/mdstream.rs:7:5
Dec 04 14:20:12.199 INFO [stderr]   |
Dec 04 14:20:12.199 INFO [stderr] 7 | use std::io::BufReader;
Dec 04 14:20:12.199 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.200 INFO [stderr] 
Dec 04 14:20:12.200 INFO [stderr] warning: unused import: `std::fs::File`
Dec 04 14:20:12.200 INFO [stderr]  --> src/mdstream.rs:8:5
Dec 04 14:20:12.200 INFO [stderr]   |
Dec 04 14:20:12.200 INFO [stderr] 8 | use std::fs::File;
Dec 04 14:20:12.200 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 14:20:12.200 INFO [stderr] 
Dec 04 14:20:12.288 INFO [stderr] warning: unused variable: `obj`
Dec 04 14:20:12.288 INFO [stderr]   --> src/main.rs:75:9
Dec 04 14:20:12.289 INFO [stderr]    |
Dec 04 14:20:12.289 INFO [stderr] 75 |     let obj = "bar";
Dec 04 14:20:12.289 INFO [stderr]    |         ^^^ help: consider using `_obj` instead
Dec 04 14:20:12.289 INFO [stderr]    |
Dec 04 14:20:12.289 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 14:20:12.295 INFO [stderr] 
Dec 04 14:20:12.305 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:20:12.305 INFO [stderr]   --> src/mdstream.rs:45:13
Dec 04 14:20:12.305 INFO [stderr]    |
Dec 04 14:20:12.305 INFO [stderr] 45 |         let mut lines = self.input.deref_mut();
Dec 04 14:20:12.305 INFO [stderr]    |             ----^^^^^
Dec 04 14:20:12.305 INFO [stderr]    |             |
Dec 04 14:20:12.305 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:20:12.305 INFO [stderr]    |
Dec 04 14:20:12.305 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:20:12.305 INFO [stderr] 
Dec 04 14:20:12.305 INFO [stderr] warning: method is never used: `new`
Dec 04 14:20:12.305 INFO [stderr]   --> src/mdstream.rs:33:5
Dec 04 14:20:12.305 INFO [stderr]    |
Dec 04 14:20:12.305 INFO [stderr] 33 |     pub fn new(lines: Box<Iterator<Item=String>>) -> MarkdownStream
Dec 04 14:20:12.305 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 14:20:12.305 INFO [stderr]    |
Dec 04 14:20:12.305 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 14:20:12.305 INFO [stderr] 
Dec 04 14:20:12.321 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:20:12.321 INFO [stderr]   --> src/mdstream.rs:45:13
Dec 04 14:20:12.321 INFO [stderr]    |
Dec 04 14:20:12.321 INFO [stderr] 45 |         let mut lines = self.input.deref_mut();
Dec 04 14:20:12.321 INFO [stderr]    |             ----^^^^^
Dec 04 14:20:12.321 INFO [stderr]    |             |
Dec 04 14:20:12.322 INFO [stderr]    |             help: remove this `mut`
Dec 04 14:20:12.327 INFO [stderr]    |
Dec 04 14:20:12.327 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:20:12.327 INFO [stderr] 
Dec 04 14:20:12.375 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
Dec 04 14:20:12.388 INFO [stderr] su: No module specific data is present
Dec 04 14:20:12.800 INFO running `"docker" "inspect" "f66722abb31ab378309dfc623b2c955c290197f21d91e913d52fb349dc11a862"`
Dec 04 14:20:12.901 INFO running `"docker" "rm" "-f" "f66722abb31ab378309dfc623b2c955c290197f21d91e913d52fb349dc11a862"`
Dec 04 14:20:13.022 INFO [stdout] f66722abb31ab378309dfc623b2c955c290197f21d91e913d52fb349dc11a862