Dec 18 04:39:02.609 INFO checking abhijeetbhagat/krum against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 04:39:02.609 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/abhijeetbhagat/krum:/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 04:39:03.034 INFO [stdout] b704927993284dc03f51bee877ec36fedab04c3e05accbb4dd8bec6ad98b50da
Dec 18 04:39:03.040 INFO running `"docker" "start" "-a" "b704927993284dc03f51bee877ec36fedab04c3e05accbb4dd8bec6ad98b50da"`
Dec 18 04:39:05.008 INFO [stderr]     Checking krum v0.1.0 (/opt/crater/workdir)
Dec 18 04:39:05.472 INFO [stderr] warning: unreachable expression
Dec 18 04:39:05.472 INFO [stderr]   --> src/parser.rs:44:9
Dec 18 04:39:05.472 INFO [stderr]    |
Dec 18 04:39:05.472 INFO [stderr] 44 |         return exp
Dec 18 04:39:05.472 INFO [stderr]    |         ^^^^^^^^^^
Dec 18 04:39:05.472 INFO [stderr]    |
Dec 18 04:39:05.472 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 04:39:05.472 INFO [stderr] 
Dec 18 04:39:05.492 INFO [stderr] warning: unused variable: `exp`
Dec 18 04:39:05.492 INFO [stderr]   --> src/parser.rs:29:17
Dec 18 04:39:05.492 INFO [stderr]    |
Dec 18 04:39:05.492 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 18 04:39:05.492 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Dec 18 04:39:05.492 INFO [stderr]    |
Dec 18 04:39:05.492 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:39:05.492 INFO [stderr] 
Dec 18 04:39:05.546 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:39:05.546 INFO [stderr]   --> src/parser.rs:29:13
Dec 18 04:39:05.546 INFO [stderr]    |
Dec 18 04:39:05.547 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 18 04:39:05.547 INFO [stderr]    |             ----^^^
Dec 18 04:39:05.547 INFO [stderr]    |             |
Dec 18 04:39:05.547 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:39:05.547 INFO [stderr]    |
Dec 18 04:39:05.547 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:39:05.547 INFO [stderr] 
Dec 18 04:39:05.547 INFO [stderr] warning: field is never used: `cur_tok_line`
Dec 18 04:39:05.547 INFO [stderr]  --> src/lexer.rs:5:5
Dec 18 04:39:05.547 INFO [stderr]   |
Dec 18 04:39:05.547 INFO [stderr] 5 |     cur_tok_line : usize,
Dec 18 04:39:05.547 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.547 INFO [stderr]   |
Dec 18 04:39:05.547 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 04:39:05.548 INFO [stderr] 
Dec 18 04:39:05.548 INFO [stderr] warning: field is never used: `cur_tok_col`
Dec 18 04:39:05.548 INFO [stderr]  --> src/lexer.rs:6:5
Dec 18 04:39:05.548 INFO [stderr]   |
Dec 18 04:39:05.548 INFO [stderr] 6 |     cur_tok_col : usize,
Dec 18 04:39:05.548 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.548 INFO [stderr] 
Dec 18 04:39:05.548 INFO [stderr] warning: field is never used: `src_len`
Dec 18 04:39:05.548 INFO [stderr]  --> src/lexer.rs:8:5
Dec 18 04:39:05.548 INFO [stderr]   |
Dec 18 04:39:05.548 INFO [stderr] 8 |     src_len : usize,
Dec 18 04:39:05.548 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:39:05.548 INFO [stderr] 
Dec 18 04:39:05.548 INFO [stderr] warning: field is never used: `expression`
Dec 18 04:39:05.548 INFO [stderr]   --> src/ast.rs:41:5
Dec 18 04:39:05.548 INFO [stderr]    |
Dec 18 04:39:05.548 INFO [stderr] 41 |     expression : Expression
Dec 18 04:39:05.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.549 INFO [stderr] 
Dec 18 04:39:05.549 INFO [stderr] warning: field is never used: `cur_tok`
Dec 18 04:39:05.549 INFO [stderr]  --> src/parser.rs:7:5
Dec 18 04:39:05.549 INFO [stderr]   |
Dec 18 04:39:05.549 INFO [stderr] 7 |     cur_tok : Token,
Dec 18 04:39:05.549 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:39:05.549 INFO [stderr] 
Dec 18 04:39:05.549 INFO [stderr] warning: method is never used: `parse_program`
Dec 18 04:39:05.549 INFO [stderr]   --> src/parser.rs:47:5
Dec 18 04:39:05.549 INFO [stderr]    |
Dec 18 04:39:05.549 INFO [stderr] 47 |     fn parse_program(&mut self) {
Dec 18 04:39:05.549 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.549 INFO [stderr] 
Dec 18 04:39:05.549 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 04:39:05.549 INFO [stderr]  --> src/main.rs:1:12
Dec 18 04:39:05.549 INFO [stderr]   |
Dec 18 04:39:05.549 INFO [stderr] 1 | #![feature(match_default_bindings)]
Dec 18 04:39:05.549 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.549 INFO [stderr]   |
Dec 18 04:39:05.549 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 04:39:05.549 INFO [stderr] 
Dec 18 04:39:05.689 INFO [stderr] warning: unreachable expression
Dec 18 04:39:05.689 INFO [stderr]   --> src/parser.rs:44:9
Dec 18 04:39:05.689 INFO [stderr]    |
Dec 18 04:39:05.689 INFO [stderr] 44 |         return exp
Dec 18 04:39:05.689 INFO [stderr]    |         ^^^^^^^^^^
Dec 18 04:39:05.689 INFO [stderr]    |
Dec 18 04:39:05.689 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 18 04:39:05.689 INFO [stderr] 
Dec 18 04:39:05.718 INFO [stderr] warning: unused variable: `exp`
Dec 18 04:39:05.718 INFO [stderr]   --> src/parser.rs:29:17
Dec 18 04:39:05.718 INFO [stderr]    |
Dec 18 04:39:05.718 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 18 04:39:05.718 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Dec 18 04:39:05.718 INFO [stderr]    |
Dec 18 04:39:05.718 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 04:39:05.718 INFO [stderr] 
Dec 18 04:39:05.786 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:39:05.786 INFO [stderr]   --> src/parser.rs:29:13
Dec 18 04:39:05.786 INFO [stderr]    |
Dec 18 04:39:05.786 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 18 04:39:05.786 INFO [stderr]    |             ----^^^
Dec 18 04:39:05.786 INFO [stderr]    |             |
Dec 18 04:39:05.786 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:39:05.786 INFO [stderr]    |
Dec 18 04:39:05.786 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:39:05.786 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: field is never used: `cur_tok_line`
Dec 18 04:39:05.791 INFO [stderr]  --> src/lexer.rs:5:5
Dec 18 04:39:05.791 INFO [stderr]   |
Dec 18 04:39:05.791 INFO [stderr] 5 |     cur_tok_line : usize,
Dec 18 04:39:05.791 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.791 INFO [stderr]   |
Dec 18 04:39:05.791 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 04:39:05.791 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: field is never used: `cur_tok_col`
Dec 18 04:39:05.791 INFO [stderr]  --> src/lexer.rs:6:5
Dec 18 04:39:05.791 INFO [stderr]   |
Dec 18 04:39:05.791 INFO [stderr] 6 |     cur_tok_col : usize,
Dec 18 04:39:05.791 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.791 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: field is never used: `src_len`
Dec 18 04:39:05.791 INFO [stderr]  --> src/lexer.rs:8:5
Dec 18 04:39:05.791 INFO [stderr]   |
Dec 18 04:39:05.791 INFO [stderr] 8 |     src_len : usize,
Dec 18 04:39:05.791 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:39:05.791 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: field is never used: `expression`
Dec 18 04:39:05.791 INFO [stderr]   --> src/ast.rs:41:5
Dec 18 04:39:05.791 INFO [stderr]    |
Dec 18 04:39:05.791 INFO [stderr] 41 |     expression : Expression
Dec 18 04:39:05.791 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.791 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: field is never used: `cur_tok`
Dec 18 04:39:05.791 INFO [stderr]  --> src/parser.rs:7:5
Dec 18 04:39:05.791 INFO [stderr]   |
Dec 18 04:39:05.791 INFO [stderr] 7 |     cur_tok : Token,
Dec 18 04:39:05.791 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 04:39:05.791 INFO [stderr] 
Dec 18 04:39:05.791 INFO [stderr] warning: method is never used: `parse_program`
Dec 18 04:39:05.791 INFO [stderr]   --> src/parser.rs:47:5
Dec 18 04:39:05.791 INFO [stderr]    |
Dec 18 04:39:05.791 INFO [stderr] 47 |     fn parse_program(&mut self) {
Dec 18 04:39:05.792 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.792 INFO [stderr] 
Dec 18 04:39:05.792 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 04:39:05.792 INFO [stderr]  --> src/main.rs:1:12
Dec 18 04:39:05.792 INFO [stderr]   |
Dec 18 04:39:05.792 INFO [stderr] 1 | #![feature(match_default_bindings)]
Dec 18 04:39:05.792 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:39:05.792 INFO [stderr]   |
Dec 18 04:39:05.792 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 04:39:05.792 INFO [stderr] 
Dec 18 04:39:05.864 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Dec 18 04:39:07.188 INFO running `"docker" "inspect" "b704927993284dc03f51bee877ec36fedab04c3e05accbb4dd8bec6ad98b50da"`
Dec 18 04:39:07.512 INFO running `"docker" "rm" "-f" "b704927993284dc03f51bee877ec36fedab04c3e05accbb4dd8bec6ad98b50da"`
Dec 18 04:39:07.896 INFO [stdout] b704927993284dc03f51bee877ec36fedab04c3e05accbb4dd8bec6ad98b50da