Dec 18 10:41:09.665 INFO checking stutter-rs-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:41:09.666 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/reg/stutter-rs/0.1.1:/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 18 10:41:10.028 INFO [stdout] 924ef6a3d6470ad0d7a6b6d488ef81dfdd5f2443adc72021a5da346057eb6faa
Dec 18 10:41:10.047 INFO running `"docker" "start" "-a" "924ef6a3d6470ad0d7a6b6d488ef81dfdd5f2443adc72021a5da346057eb6faa"`
Dec 18 10:41:11.006 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 18 10:41:11.040 INFO [stderr]     Checking cactus v1.0.3
Dec 18 10:41:11.320 INFO [stderr]     Checking stutter-rs v0.1.1 (/opt/crater/workdir)
Dec 18 10:41:12.045 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.045 INFO [stderr]   --> src/ast/parse.rs:22:13
Dec 18 10:41:12.045 INFO [stderr]    |
Dec 18 10:41:12.045 INFO [stderr] 22 |             n: tag!("null") >>
Dec 18 10:41:12.045 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.045 INFO [stderr]    |
Dec 18 10:41:12.045 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 10:41:12.045 INFO [stderr] 
Dec 18 10:41:12.046 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.046 INFO [stderr]   --> src/ast/parse.rs:26:13
Dec 18 10:41:12.046 INFO [stderr]    |
Dec 18 10:41:12.046 INFO [stderr] 26 |             n: tag!("true") >>
Dec 18 10:41:12.046 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.046 INFO [stderr] 
Dec 18 10:41:12.046 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.046 INFO [stderr]   --> src/ast/parse.rs:30:13
Dec 18 10:41:12.046 INFO [stderr]    |
Dec 18 10:41:12.046 INFO [stderr] 30 |             n: tag!("false") >>
Dec 18 10:41:12.046 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.046 INFO [stderr] 
Dec 18 10:41:12.056 INFO [stderr] warning: unused variable: `other`
Dec 18 10:41:12.056 INFO [stderr]   --> src/ast/function.rs:45:18
Dec 18 10:41:12.056 INFO [stderr]    |
Dec 18 10:41:12.056 INFO [stderr] 45 |     fn eq(&self, other: &Function) -> bool {
Dec 18 10:41:12.056 INFO [stderr]    |                  ^^^^^ help: consider using `_other` instead
Dec 18 10:41:12.056 INFO [stderr] 
Dec 18 10:41:12.056 INFO [stderr] warning: unused variable: `func`
Dec 18 10:41:12.056 INFO [stderr]    --> src/eval/types.rs:110:40
Dec 18 10:41:12.056 INFO [stderr]     |
Dec 18 10:41:12.056 INFO [stderr] 110 |             if let Value::Function(ref func) = frame.borrow().returns {
Dec 18 10:41:12.056 INFO [stderr]     |                                        ^^^^ help: consider using `_func` instead
Dec 18 10:41:12.056 INFO [stderr] 
Dec 18 10:41:12.136 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.136 INFO [stderr]   --> src/ast/parse.rs:22:13
Dec 18 10:41:12.136 INFO [stderr]    |
Dec 18 10:41:12.136 INFO [stderr] 22 |             n: tag!("null") >>
Dec 18 10:41:12.136 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.136 INFO [stderr]    |
Dec 18 10:41:12.136 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 10:41:12.136 INFO [stderr] 
Dec 18 10:41:12.136 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.136 INFO [stderr]   --> src/ast/parse.rs:26:13
Dec 18 10:41:12.136 INFO [stderr]    |
Dec 18 10:41:12.136 INFO [stderr] 26 |             n: tag!("true") >>
Dec 18 10:41:12.136 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.136 INFO [stderr] 
Dec 18 10:41:12.136 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:12.136 INFO [stderr]   --> src/ast/parse.rs:30:13
Dec 18 10:41:12.136 INFO [stderr]    |
Dec 18 10:41:12.136 INFO [stderr] 30 |             n: tag!("false") >>
Dec 18 10:41:12.137 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:12.137 INFO [stderr] 
Dec 18 10:41:12.137 INFO [stderr] warning: unused variable: `other`
Dec 18 10:41:12.137 INFO [stderr]   --> src/ast/function.rs:45:18
Dec 18 10:41:12.137 INFO [stderr]    |
Dec 18 10:41:12.137 INFO [stderr] 45 |     fn eq(&self, other: &Function) -> bool {
Dec 18 10:41:12.137 INFO [stderr]    |                  ^^^^^ help: consider using `_other` instead
Dec 18 10:41:12.137 INFO [stderr] 
Dec 18 10:41:12.137 INFO [stderr] warning: unused variable: `func`
Dec 18 10:41:12.137 INFO [stderr]    --> src/eval/types.rs:110:40
Dec 18 10:41:12.137 INFO [stderr]     |
Dec 18 10:41:12.137 INFO [stderr] 110 |             if let Value::Function(ref func) = frame.borrow().returns {
Dec 18 10:41:12.137 INFO [stderr]     |                                        ^^^^ help: consider using `_func` instead
Dec 18 10:41:12.137 INFO [stderr] 
Dec 18 10:41:12.178 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 10:41:12.178 INFO [stderr]  --> src/lib.rs:1:54
Dec 18 10:41:12.178 INFO [stderr]   |
Dec 18 10:41:12.178 INFO [stderr] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
Dec 18 10:41:12.178 INFO [stderr]   |                                                      ^^^^^^^^^^^^^^^^
Dec 18 10:41:12.178 INFO [stderr]   |
Dec 18 10:41:12.178 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:41:12.178 INFO [stderr] 
Dec 18 10:41:12.188 INFO [stderr] warning: static variable `next_id` should have an upper case name such as `NEXT_ID`
Dec 18 10:41:12.188 INFO [stderr]   --> src/eval/types.rs:15:1
Dec 18 10:41:12.188 INFO [stderr]    |
Dec 18 10:41:12.188 INFO [stderr] 15 | static mut next_id: i32 = 0;
Dec 18 10:41:12.188 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:41:12.188 INFO [stderr]    |
Dec 18 10:41:12.188 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 18 10:41:12.188 INFO [stderr] 
Dec 18 10:41:12.287 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 10:41:12.287 INFO [stderr]  --> src/lib.rs:1:54
Dec 18 10:41:12.287 INFO [stderr]   |
Dec 18 10:41:12.287 INFO [stderr] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
Dec 18 10:41:12.287 INFO [stderr]   |                                                      ^^^^^^^^^^^^^^^^
Dec 18 10:41:12.288 INFO [stderr]   |
Dec 18 10:41:12.288 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:41:12.288 INFO [stderr] 
Dec 18 10:41:12.296 INFO [stderr] warning: static variable `next_id` should have an upper case name such as `NEXT_ID`
Dec 18 10:41:12.296 INFO [stderr]   --> src/eval/types.rs:15:1
Dec 18 10:41:12.296 INFO [stderr]    |
Dec 18 10:41:12.296 INFO [stderr] 15 | static mut next_id: i32 = 0;
Dec 18 10:41:12.296 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:41:12.296 INFO [stderr]    |
Dec 18 10:41:12.296 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 18 10:41:12.296 INFO [stderr] 
Dec 18 10:41:13.072 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.072 INFO [stderr]   --> src/ast/parse.rs:22:13
Dec 18 10:41:13.072 INFO [stderr]    |
Dec 18 10:41:13.072 INFO [stderr] 22 |             n: tag!("null") >>
Dec 18 10:41:13.072 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.072 INFO [stderr]    |
Dec 18 10:41:13.072 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 10:41:13.072 INFO [stderr] 
Dec 18 10:41:13.072 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.072 INFO [stderr]   --> src/ast/parse.rs:26:13
Dec 18 10:41:13.072 INFO [stderr]    |
Dec 18 10:41:13.072 INFO [stderr] 26 |             n: tag!("true") >>
Dec 18 10:41:13.072 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.072 INFO [stderr] 
Dec 18 10:41:13.072 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.072 INFO [stderr]   --> src/ast/parse.rs:30:13
Dec 18 10:41:13.072 INFO [stderr]    |
Dec 18 10:41:13.072 INFO [stderr] 30 |             n: tag!("false") >>
Dec 18 10:41:13.073 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.073 INFO [stderr] 
Dec 18 10:41:13.073 INFO [stderr] warning: unused variable: `other`
Dec 18 10:41:13.073 INFO [stderr]   --> src/ast/function.rs:45:18
Dec 18 10:41:13.073 INFO [stderr]    |
Dec 18 10:41:13.073 INFO [stderr] 45 |     fn eq(&self, other: &Function) -> bool {
Dec 18 10:41:13.073 INFO [stderr]    |                  ^^^^^ help: consider using `_other` instead
Dec 18 10:41:13.073 INFO [stderr] 
Dec 18 10:41:13.073 INFO [stderr] warning: unused variable: `func`
Dec 18 10:41:13.073 INFO [stderr]    --> src/eval/types.rs:110:40
Dec 18 10:41:13.073 INFO [stderr]     |
Dec 18 10:41:13.073 INFO [stderr] 110 |             if let Value::Function(ref func) = frame.borrow().returns {
Dec 18 10:41:13.073 INFO [stderr]     |                                        ^^^^ help: consider using `_func` instead
Dec 18 10:41:13.073 INFO [stderr] 
Dec 18 10:41:13.176 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.176 INFO [stderr]   --> src/ast/parse.rs:22:13
Dec 18 10:41:13.176 INFO [stderr]    |
Dec 18 10:41:13.176 INFO [stderr] 22 |             n: tag!("null") >>
Dec 18 10:41:13.176 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.176 INFO [stderr]    |
Dec 18 10:41:13.176 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 10:41:13.176 INFO [stderr] 
Dec 18 10:41:13.176 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.176 INFO [stderr]   --> src/ast/parse.rs:26:13
Dec 18 10:41:13.176 INFO [stderr]    |
Dec 18 10:41:13.176 INFO [stderr] 26 |             n: tag!("true") >>
Dec 18 10:41:13.176 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.176 INFO [stderr] 
Dec 18 10:41:13.176 INFO [stderr] warning: unused variable: `n`
Dec 18 10:41:13.177 INFO [stderr]   --> src/ast/parse.rs:30:13
Dec 18 10:41:13.177 INFO [stderr]    |
Dec 18 10:41:13.177 INFO [stderr] 30 |             n: tag!("false") >>
Dec 18 10:41:13.177 INFO [stderr]    |             ^ help: consider using `_n` instead
Dec 18 10:41:13.177 INFO [stderr] 
Dec 18 10:41:13.177 INFO [stderr] warning: unused variable: `other`
Dec 18 10:41:13.177 INFO [stderr]   --> src/ast/function.rs:45:18
Dec 18 10:41:13.177 INFO [stderr]    |
Dec 18 10:41:13.177 INFO [stderr] 45 |     fn eq(&self, other: &Function) -> bool {
Dec 18 10:41:13.177 INFO [stderr]    |                  ^^^^^ help: consider using `_other` instead
Dec 18 10:41:13.177 INFO [stderr] 
Dec 18 10:41:13.177 INFO [stderr] warning: unused variable: `func`
Dec 18 10:41:13.177 INFO [stderr]    --> src/eval/types.rs:110:40
Dec 18 10:41:13.177 INFO [stderr]     |
Dec 18 10:41:13.177 INFO [stderr] 110 |             if let Value::Function(ref func) = frame.borrow().returns {
Dec 18 10:41:13.177 INFO [stderr]     |                                        ^^^^ help: consider using `_func` instead
Dec 18 10:41:13.177 INFO [stderr] 
Dec 18 10:41:13.328 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 10:41:13.328 INFO [stderr]  --> src/main.rs:1:54
Dec 18 10:41:13.328 INFO [stderr]   |
Dec 18 10:41:13.328 INFO [stderr] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
Dec 18 10:41:13.328 INFO [stderr]   |                                                      ^^^^^^^^^^^^^^^^
Dec 18 10:41:13.328 INFO [stderr]   |
Dec 18 10:41:13.328 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:41:13.328 INFO [stderr] 
Dec 18 10:41:13.336 INFO [stderr] warning: static variable `next_id` should have an upper case name such as `NEXT_ID`
Dec 18 10:41:13.336 INFO [stderr]   --> src/eval/types.rs:15:1
Dec 18 10:41:13.336 INFO [stderr]    |
Dec 18 10:41:13.336 INFO [stderr] 15 | static mut next_id: i32 = 0;
Dec 18 10:41:13.336 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:41:13.336 INFO [stderr]    |
Dec 18 10:41:13.336 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 18 10:41:13.336 INFO [stderr] 
Dec 18 10:41:13.344 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 18 10:41:13.344 INFO [stderr]  --> src/main.rs:1:54
Dec 18 10:41:13.344 INFO [stderr]   |
Dec 18 10:41:13.344 INFO [stderr] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
Dec 18 10:41:13.344 INFO [stderr]   |                                                      ^^^^^^^^^^^^^^^^
Dec 18 10:41:13.344 INFO [stderr]   |
Dec 18 10:41:13.344 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 10:41:13.344 INFO [stderr] 
Dec 18 10:41:13.364 INFO [stderr] warning: static variable `next_id` should have an upper case name such as `NEXT_ID`
Dec 18 10:41:13.364 INFO [stderr]   --> src/eval/types.rs:15:1
Dec 18 10:41:13.364 INFO [stderr]    |
Dec 18 10:41:13.364 INFO [stderr] 15 | static mut next_id: i32 = 0;
Dec 18 10:41:13.364 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 10:41:13.364 INFO [stderr]    |
Dec 18 10:41:13.364 INFO [stderr]    = note: #[warn(non_upper_case_globals)] on by default
Dec 18 10:41:13.364 INFO [stderr] 
Dec 18 10:41:13.428 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
Dec 18 10:41:14.118 INFO running `"docker" "inspect" "924ef6a3d6470ad0d7a6b6d488ef81dfdd5f2443adc72021a5da346057eb6faa"`
Dec 18 10:41:14.436 INFO running `"docker" "rm" "-f" "924ef6a3d6470ad0d7a6b6d488ef81dfdd5f2443adc72021a5da346057eb6faa"`
Dec 18 10:41:14.768 INFO [stdout] 924ef6a3d6470ad0d7a6b6d488ef81dfdd5f2443adc72021a5da346057eb6faa