Dec 11 23:20:47.361 INFO checking abhijeetbhagat/krum against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 23:20:47.361 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 23:20:47.868 INFO [stdout] 71b001e4669bd6a016fe7c74f75e9dfb31bdbce4f6af249eae645265e2f2641b
Dec 11 23:20:47.868 INFO running `"docker" "start" "-a" "71b001e4669bd6a016fe7c74f75e9dfb31bdbce4f6af249eae645265e2f2641b"`
Dec 11 23:20:49.385 INFO [stderr] usermod: no changes
Dec 11 23:20:49.484 INFO [stderr]     Checking krum v0.1.0 (/source)
Dec 11 23:20:50.361 INFO [stderr] warning: unreachable expression
Dec 11 23:20:50.361 INFO [stderr]   --> src/parser.rs:44:9
Dec 11 23:20:50.361 INFO [stderr]    |
Dec 11 23:20:50.361 INFO [stderr] 44 |         return exp
Dec 11 23:20:50.361 INFO [stderr]    |         ^^^^^^^^^^
Dec 11 23:20:50.361 INFO [stderr]    |
Dec 11 23:20:50.361 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 11 23:20:50.361 INFO [stderr] 
Dec 11 23:20:50.372 INFO [stderr] warning: unused variable: `exp`
Dec 11 23:20:50.372 INFO [stderr]   --> src/parser.rs:29:17
Dec 11 23:20:50.372 INFO [stderr]    |
Dec 11 23:20:50.372 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 11 23:20:50.372 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Dec 11 23:20:50.372 INFO [stderr]    |
Dec 11 23:20:50.372 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:20:50.372 INFO [stderr] 
Dec 11 23:20:50.395 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:20:50.396 INFO [stderr]   --> src/parser.rs:29:13
Dec 11 23:20:50.396 INFO [stderr]    |
Dec 11 23:20:50.396 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 11 23:20:50.396 INFO [stderr]    |             ----^^^
Dec 11 23:20:50.396 INFO [stderr]    |             |
Dec 11 23:20:50.396 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:20:50.396 INFO [stderr]    |
Dec 11 23:20:50.396 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:20:50.396 INFO [stderr] 
Dec 11 23:20:50.400 INFO [stderr] warning: field is never used: `cur_tok_line`
Dec 11 23:20:50.400 INFO [stderr]  --> src/lexer.rs:5:5
Dec 11 23:20:50.400 INFO [stderr]   |
Dec 11 23:20:50.400 INFO [stderr] 5 |     cur_tok_line : usize,
Dec 11 23:20:50.400 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.400 INFO [stderr]   |
Dec 11 23:20:50.400 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 23:20:50.400 INFO [stderr] 
Dec 11 23:20:50.400 INFO [stderr] warning: field is never used: `cur_tok_col`
Dec 11 23:20:50.400 INFO [stderr]  --> src/lexer.rs:6:5
Dec 11 23:20:50.400 INFO [stderr]   |
Dec 11 23:20:50.400 INFO [stderr] 6 |     cur_tok_col : usize,
Dec 11 23:20:50.400 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.400 INFO [stderr] 
Dec 11 23:20:50.400 INFO [stderr] warning: field is never used: `src_len`
Dec 11 23:20:50.400 INFO [stderr]  --> src/lexer.rs:8:5
Dec 11 23:20:50.400 INFO [stderr]   |
Dec 11 23:20:50.400 INFO [stderr] 8 |     src_len : usize,
Dec 11 23:20:50.400 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:20:50.401 INFO [stderr] 
Dec 11 23:20:50.401 INFO [stderr] warning: field is never used: `expression`
Dec 11 23:20:50.401 INFO [stderr]   --> src/ast.rs:41:5
Dec 11 23:20:50.401 INFO [stderr]    |
Dec 11 23:20:50.401 INFO [stderr] 41 |     expression : Expression
Dec 11 23:20:50.401 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.401 INFO [stderr] 
Dec 11 23:20:50.401 INFO [stderr] warning: field is never used: `cur_tok`
Dec 11 23:20:50.401 INFO [stderr]  --> src/parser.rs:7:5
Dec 11 23:20:50.401 INFO [stderr]   |
Dec 11 23:20:50.401 INFO [stderr] 7 |     cur_tok : Token,
Dec 11 23:20:50.401 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:20:50.401 INFO [stderr] 
Dec 11 23:20:50.401 INFO [stderr] warning: method is never used: `parse_program`
Dec 11 23:20:50.401 INFO [stderr]   --> src/parser.rs:47:5
Dec 11 23:20:50.401 INFO [stderr]    |
Dec 11 23:20:50.401 INFO [stderr] 47 |     fn parse_program(&mut self) {
Dec 11 23:20:50.401 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.401 INFO [stderr] 
Dec 11 23:20:50.401 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 23:20:50.401 INFO [stderr]  --> src/main.rs:1:12
Dec 11 23:20:50.401 INFO [stderr]   |
Dec 11 23:20:50.401 INFO [stderr] 1 | #![feature(match_default_bindings)]
Dec 11 23:20:50.401 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.401 INFO [stderr]   |
Dec 11 23:20:50.401 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 23:20:50.401 INFO [stderr] 
Dec 11 23:20:50.580 INFO [stderr] warning: unreachable expression
Dec 11 23:20:50.580 INFO [stderr]   --> src/parser.rs:44:9
Dec 11 23:20:50.580 INFO [stderr]    |
Dec 11 23:20:50.580 INFO [stderr] 44 |         return exp
Dec 11 23:20:50.580 INFO [stderr]    |         ^^^^^^^^^^
Dec 11 23:20:50.580 INFO [stderr]    |
Dec 11 23:20:50.580 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Dec 11 23:20:50.580 INFO [stderr] 
Dec 11 23:20:50.603 INFO [stderr] warning: unused variable: `exp`
Dec 11 23:20:50.603 INFO [stderr]   --> src/parser.rs:29:17
Dec 11 23:20:50.603 INFO [stderr]    |
Dec 11 23:20:50.603 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 11 23:20:50.603 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Dec 11 23:20:50.603 INFO [stderr]    |
Dec 11 23:20:50.603 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:20:50.603 INFO [stderr] 
Dec 11 23:20:50.672 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:20:50.672 INFO [stderr]   --> src/parser.rs:29:13
Dec 11 23:20:50.672 INFO [stderr]    |
Dec 11 23:20:50.672 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Dec 11 23:20:50.672 INFO [stderr]    |             ----^^^
Dec 11 23:20:50.672 INFO [stderr]    |             |
Dec 11 23:20:50.672 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:20:50.672 INFO [stderr]    |
Dec 11 23:20:50.672 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:20:50.672 INFO [stderr] 
Dec 11 23:20:50.688 INFO [stderr] warning: field is never used: `cur_tok_line`
Dec 11 23:20:50.688 INFO [stderr]  --> src/lexer.rs:5:5
Dec 11 23:20:50.688 INFO [stderr]   |
Dec 11 23:20:50.688 INFO [stderr] 5 |     cur_tok_line : usize,
Dec 11 23:20:50.688 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.688 INFO [stderr]   |
Dec 11 23:20:50.688 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 23:20:50.688 INFO [stderr] 
Dec 11 23:20:50.688 INFO [stderr] warning: field is never used: `cur_tok_col`
Dec 11 23:20:50.688 INFO [stderr]  --> src/lexer.rs:6:5
Dec 11 23:20:50.688 INFO [stderr]   |
Dec 11 23:20:50.688 INFO [stderr] 6 |     cur_tok_col : usize,
Dec 11 23:20:50.688 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.688 INFO [stderr] 
Dec 11 23:20:50.688 INFO [stderr] warning: field is never used: `src_len`
Dec 11 23:20:50.688 INFO [stderr]  --> src/lexer.rs:8:5
Dec 11 23:20:50.688 INFO [stderr]   |
Dec 11 23:20:50.688 INFO [stderr] 8 |     src_len : usize,
Dec 11 23:20:50.688 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:20:50.688 INFO [stderr] 
Dec 11 23:20:50.688 INFO [stderr] warning: field is never used: `expression`
Dec 11 23:20:50.689 INFO [stderr]   --> src/ast.rs:41:5
Dec 11 23:20:50.689 INFO [stderr]    |
Dec 11 23:20:50.689 INFO [stderr] 41 |     expression : Expression
Dec 11 23:20:50.689 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.689 INFO [stderr] 
Dec 11 23:20:50.689 INFO [stderr] warning: field is never used: `cur_tok`
Dec 11 23:20:50.689 INFO [stderr]  --> src/parser.rs:7:5
Dec 11 23:20:50.689 INFO [stderr]   |
Dec 11 23:20:50.689 INFO [stderr] 7 |     cur_tok : Token,
Dec 11 23:20:50.689 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 23:20:50.689 INFO [stderr] 
Dec 11 23:20:50.689 INFO [stderr] warning: method is never used: `parse_program`
Dec 11 23:20:50.689 INFO [stderr]   --> src/parser.rs:47:5
Dec 11 23:20:50.689 INFO [stderr]    |
Dec 11 23:20:50.689 INFO [stderr] 47 |     fn parse_program(&mut self) {
Dec 11 23:20:50.689 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.689 INFO [stderr] 
Dec 11 23:20:50.689 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 23:20:50.689 INFO [stderr]  --> src/main.rs:1:12
Dec 11 23:20:50.689 INFO [stderr]   |
Dec 11 23:20:50.689 INFO [stderr] 1 | #![feature(match_default_bindings)]
Dec 11 23:20:50.689 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:20:50.689 INFO [stderr]   |
Dec 11 23:20:50.689 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 23:20:50.689 INFO [stderr] 
Dec 11 23:20:50.741 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
Dec 11 23:20:50.743 INFO [stderr] su: No module specific data is present
Dec 11 23:20:51.788 INFO running `"docker" "inspect" "71b001e4669bd6a016fe7c74f75e9dfb31bdbce4f6af249eae645265e2f2641b"`
Dec 11 23:20:52.158 INFO running `"docker" "rm" "-f" "71b001e4669bd6a016fe7c74f75e9dfb31bdbce4f6af249eae645265e2f2641b"`
Dec 11 23:20:52.496 INFO [stdout] 71b001e4669bd6a016fe7c74f75e9dfb31bdbce4f6af249eae645265e2f2641b