Dec 17 19:24:21.099 INFO checking moratorium08/moo against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:24:21.100 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/moratorium08/moo:/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 19:24:21.611 INFO [stdout] b07a58e952dd202f2211e61ff69441142d35479c295676374edbb0d51ede1160
Dec 17 19:24:21.618 INFO running `"docker" "start" "-a" "b07a58e952dd202f2211e61ff69441142d35479c295676374edbb0d51ede1160"`
Dec 17 19:24:23.800 INFO [stderr]    Compiling memchr v2.1.0
Dec 17 19:24:25.284 INFO [stderr]     Checking nom v4.0.0
Dec 17 19:24:27.085 INFO [stderr]     Checking stst v0.1.0 (/opt/crater/workdir)
Dec 17 19:24:27.404 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 17 19:24:27.404 INFO [stderr]  --> src/main.rs:7:5
Dec 17 19:24:27.404 INFO [stderr]   |
Dec 17 19:24:27.404 INFO [stderr] 7 | use std::cell::RefCell;
Dec 17 19:24:27.404 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 19:24:27.404 INFO [stderr]   |
Dec 17 19:24:27.404 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:24:27.404 INFO [stderr] 
Dec 17 19:24:27.404 INFO [stderr] warning: unused import: `std::str::Chars`
Dec 17 19:24:27.404 INFO [stderr]  --> src/main.rs:8:5
Dec 17 19:24:27.404 INFO [stderr]   |
Dec 17 19:24:27.404 INFO [stderr] 8 | use std::str::Chars;
Dec 17 19:24:27.404 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 17 19:24:27.404 INFO [stderr] 
Dec 17 19:24:27.404 INFO [stderr] warning: unused import: `libc::getchar`
Dec 17 19:24:27.404 INFO [stderr]  --> src/main.rs:9:5
Dec 17 19:24:27.404 INFO [stderr]   |
Dec 17 19:24:27.404 INFO [stderr] 9 | use libc::getchar;
Dec 17 19:24:27.404 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 19:24:27.404 INFO [stderr] 
Dec 17 19:24:27.412 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 17 19:24:27.412 INFO [stderr]  --> src/main.rs:7:5
Dec 17 19:24:27.412 INFO [stderr]   |
Dec 17 19:24:27.412 INFO [stderr] 7 | use std::cell::RefCell;
Dec 17 19:24:27.412 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 17 19:24:27.412 INFO [stderr]   |
Dec 17 19:24:27.412 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:24:27.412 INFO [stderr] 
Dec 17 19:24:27.412 INFO [stderr] warning: unused import: `std::str::Chars`
Dec 17 19:24:27.412 INFO [stderr]  --> src/main.rs:8:5
Dec 17 19:24:27.412 INFO [stderr]   |
Dec 17 19:24:27.412 INFO [stderr] 8 | use std::str::Chars;
Dec 17 19:24:27.412 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 17 19:24:27.412 INFO [stderr] 
Dec 17 19:24:27.412 INFO [stderr] warning: unused import: `libc::getchar`
Dec 17 19:24:27.412 INFO [stderr]  --> src/main.rs:9:5
Dec 17 19:24:27.412 INFO [stderr]   |
Dec 17 19:24:27.412 INFO [stderr] 9 | use libc::getchar;
Dec 17 19:24:27.412 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 17 19:24:27.412 INFO [stderr] 
Dec 17 19:24:27.580 INFO [stderr] warning: unused variable: `frame`
Dec 17 19:24:27.580 INFO [stderr]    --> src/main.rs:164:21
Dec 17 19:24:27.580 INFO [stderr]     |
Dec 17 19:24:27.580 INFO [stderr] 164 |                 let frame: &mut Frame = &mut env[n - 1];
Dec 17 19:24:27.580 INFO [stderr]     |                     ^^^^^ help: consider using `_frame` instead
Dec 17 19:24:27.580 INFO [stderr]     |
Dec 17 19:24:27.580 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 19:24:27.580 INFO [stderr] 
Dec 17 19:24:27.580 INFO [stderr] warning: unused variable: `v`
Dec 17 19:24:27.580 INFO [stderr]    --> src/main.rs:354:41
Dec 17 19:24:27.580 INFO [stderr]     |
Dec 17 19:24:27.580 INFO [stderr] 354 |                                 let mut v: Vec<(ID, ID)> = Vec::new();
Dec 17 19:24:27.580 INFO [stderr]     |                                         ^ help: consider using `_v` instead
Dec 17 19:24:27.580 INFO [stderr] 
Dec 17 19:24:27.580 INFO [stderr] warning: unused variable: `c`
Dec 17 19:24:27.580 INFO [stderr]    --> src/main.rs:366:38
Dec 17 19:24:27.580 INFO [stderr]     |
Dec 17 19:24:27.580 INFO [stderr] 366 |                     Some(Value::List(c)) => {
Dec 17 19:24:27.580 INFO [stderr]     |                                      ^ help: consider using `_c` instead
Dec 17 19:24:27.580 INFO [stderr] 
Dec 17 19:24:27.581 INFO [stderr] warning: variable `nest` is assigned to, but never used
Dec 17 19:24:27.581 INFO [stderr]    --> src/main.rs:512:13
Dec 17 19:24:27.581 INFO [stderr]     |
Dec 17 19:24:27.581 INFO [stderr] 512 |     let mut nest = 0;
Dec 17 19:24:27.581 INFO [stderr]     |             ^^^^
Dec 17 19:24:27.581 INFO [stderr]     |
Dec 17 19:24:27.581 INFO [stderr]     = note: consider using `_nest` instead
Dec 17 19:24:27.581 INFO [stderr] 
Dec 17 19:24:27.640 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:24:27.640 INFO [stderr]    --> src/main.rs:623:5
Dec 17 19:24:27.640 INFO [stderr]     |
Dec 17 19:24:27.640 INFO [stderr] 623 |     f.read_to_string(&mut code);
Dec 17 19:24:27.640 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:24:27.640 INFO [stderr]     |
Dec 17 19:24:27.640 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 19:24:27.640 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:24:27.640 INFO [stderr] 
Dec 17 19:24:27.660 INFO [stderr] warning: unused variable: `frame`
Dec 17 19:24:27.660 INFO [stderr]    --> src/main.rs:164:21
Dec 17 19:24:27.660 INFO [stderr]     |
Dec 17 19:24:27.660 INFO [stderr] 164 |                 let frame: &mut Frame = &mut env[n - 1];
Dec 17 19:24:27.660 INFO [stderr]     |                     ^^^^^ help: consider using `_frame` instead
Dec 17 19:24:27.660 INFO [stderr]     |
Dec 17 19:24:27.660 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 19:24:27.660 INFO [stderr] 
Dec 17 19:24:27.660 INFO [stderr] warning: unused variable: `v`
Dec 17 19:24:27.660 INFO [stderr]    --> src/main.rs:354:41
Dec 17 19:24:27.660 INFO [stderr]     |
Dec 17 19:24:27.660 INFO [stderr] 354 |                                 let mut v: Vec<(ID, ID)> = Vec::new();
Dec 17 19:24:27.660 INFO [stderr]     |                                         ^ help: consider using `_v` instead
Dec 17 19:24:27.660 INFO [stderr] 
Dec 17 19:24:27.660 INFO [stderr] warning: unused variable: `c`
Dec 17 19:24:27.660 INFO [stderr]    --> src/main.rs:366:38
Dec 17 19:24:27.660 INFO [stderr]     |
Dec 17 19:24:27.660 INFO [stderr] 366 |                     Some(Value::List(c)) => {
Dec 17 19:24:27.660 INFO [stderr]     |                                      ^ help: consider using `_c` instead
Dec 17 19:24:27.661 INFO [stderr] 
Dec 17 19:24:27.661 INFO [stderr] warning: variable `nest` is assigned to, but never used
Dec 17 19:24:27.661 INFO [stderr]    --> src/main.rs:512:13
Dec 17 19:24:27.661 INFO [stderr]     |
Dec 17 19:24:27.661 INFO [stderr] 512 |     let mut nest = 0;
Dec 17 19:24:27.661 INFO [stderr]     |             ^^^^
Dec 17 19:24:27.662 INFO [stderr]     |
Dec 17 19:24:27.668 INFO [stderr]     = note: consider using `_nest` instead
Dec 17 19:24:27.668 INFO [stderr] 
Dec 17 19:24:27.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:24:27.736 INFO [stderr]    --> src/main.rs:623:5
Dec 17 19:24:27.736 INFO [stderr]     |
Dec 17 19:24:27.736 INFO [stderr] 623 |     f.read_to_string(&mut code);
Dec 17 19:24:27.736 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:24:27.736 INFO [stderr]     |
Dec 17 19:24:27.736 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 19:24:27.736 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:24:27.736 INFO [stderr] 
Dec 17 19:24:27.771 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
Dec 17 19:24:28.784 INFO running `"docker" "inspect" "b07a58e952dd202f2211e61ff69441142d35479c295676374edbb0d51ede1160"`
Dec 17 19:24:29.102 INFO running `"docker" "rm" "-f" "b07a58e952dd202f2211e61ff69441142d35479c295676374edbb0d51ede1160"`
Dec 17 19:24:29.436 INFO [stdout] b07a58e952dd202f2211e61ff69441142d35479c295676374edbb0d51ede1160