Nov 30 07:43:19.382 INFO checking abhijeetbhagat/krum against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 07:43:19.382 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 07:43:19.826 INFO [stdout] c3b307ca9884e69d9a4c850cf39acb8902cf4d9e92a3076b49b66826b11b4372
Nov 30 07:43:19.828 INFO running `"docker" "start" "-a" "c3b307ca9884e69d9a4c850cf39acb8902cf4d9e92a3076b49b66826b11b4372"`
Nov 30 07:43:20.972 INFO [stderr] usermod: no changes
Nov 30 07:43:21.048 INFO [stderr]     Checking krum v0.1.0 (/source)
Nov 30 07:43:21.638 INFO [stderr] warning: unreachable expression
Nov 30 07:43:21.638 INFO [stderr]   --> src/parser.rs:44:9
Nov 30 07:43:21.638 INFO [stderr]    |
Nov 30 07:43:21.638 INFO [stderr] 44 |         return exp
Nov 30 07:43:21.638 INFO [stderr]    |         ^^^^^^^^^^
Nov 30 07:43:21.638 INFO [stderr]    |
Nov 30 07:43:21.638 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 30 07:43:21.639 INFO [stderr] 
Nov 30 07:43:21.647 INFO [stderr] warning: unused variable: `exp`
Nov 30 07:43:21.647 INFO [stderr]   --> src/parser.rs:29:17
Nov 30 07:43:21.647 INFO [stderr]    |
Nov 30 07:43:21.647 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Nov 30 07:43:21.647 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Nov 30 07:43:21.647 INFO [stderr]    |
Nov 30 07:43:21.647 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 07:43:21.647 INFO [stderr] 
Nov 30 07:43:21.670 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:43:21.670 INFO [stderr]   --> src/parser.rs:29:13
Nov 30 07:43:21.670 INFO [stderr]    |
Nov 30 07:43:21.670 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Nov 30 07:43:21.670 INFO [stderr]    |             ----^^^
Nov 30 07:43:21.670 INFO [stderr]    |             |
Nov 30 07:43:21.670 INFO [stderr]    |             help: remove this `mut`
Nov 30 07:43:21.670 INFO [stderr]    |
Nov 30 07:43:21.676 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: field is never used: `cur_tok_line`
Nov 30 07:43:21.676 INFO [stderr]  --> src/lexer.rs:5:5
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr] 5 |     cur_tok_line : usize,
Nov 30 07:43:21.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: field is never used: `cur_tok_col`
Nov 30 07:43:21.676 INFO [stderr]  --> src/lexer.rs:6:5
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr] 6 |     cur_tok_col : usize,
Nov 30 07:43:21.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: field is never used: `src_len`
Nov 30 07:43:21.676 INFO [stderr]  --> src/lexer.rs:8:5
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr] 8 |     src_len : usize,
Nov 30 07:43:21.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: field is never used: `expression`
Nov 30 07:43:21.676 INFO [stderr]   --> src/ast.rs:41:5
Nov 30 07:43:21.676 INFO [stderr]    |
Nov 30 07:43:21.676 INFO [stderr] 41 |     expression : Expression
Nov 30 07:43:21.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: field is never used: `cur_tok`
Nov 30 07:43:21.676 INFO [stderr]  --> src/parser.rs:7:5
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr] 7 |     cur_tok : Token,
Nov 30 07:43:21.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: method is never used: `parse_program`
Nov 30 07:43:21.676 INFO [stderr]   --> src/parser.rs:47:5
Nov 30 07:43:21.676 INFO [stderr]    |
Nov 30 07:43:21.676 INFO [stderr] 47 |     fn parse_program(&mut self) {
Nov 30 07:43:21.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.676 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 07:43:21.676 INFO [stderr]  --> src/main.rs:1:12
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr] 1 | #![feature(match_default_bindings)]
Nov 30 07:43:21.676 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.676 INFO [stderr]   |
Nov 30 07:43:21.676 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 30 07:43:21.676 INFO [stderr] 
Nov 30 07:43:21.904 INFO [stderr] warning: unreachable expression
Nov 30 07:43:21.905 INFO [stderr]   --> src/parser.rs:44:9
Nov 30 07:43:21.905 INFO [stderr]    |
Nov 30 07:43:21.905 INFO [stderr] 44 |         return exp
Nov 30 07:43:21.905 INFO [stderr]    |         ^^^^^^^^^^
Nov 30 07:43:21.905 INFO [stderr]    |
Nov 30 07:43:21.905 INFO [stderr]    = note: #[warn(unreachable_code)] on by default
Nov 30 07:43:21.906 INFO [stderr] 
Nov 30 07:43:21.922 INFO [stderr] warning: unused variable: `exp`
Nov 30 07:43:21.922 INFO [stderr]   --> src/parser.rs:29:17
Nov 30 07:43:21.922 INFO [stderr]    |
Nov 30 07:43:21.922 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Nov 30 07:43:21.922 INFO [stderr]    |                 ^^^ help: consider using `_exp` instead
Nov 30 07:43:21.922 INFO [stderr]    |
Nov 30 07:43:21.922 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 07:43:21.922 INFO [stderr] 
Nov 30 07:43:21.975 INFO [stderr] warning: variable does not need to be mutable
Nov 30 07:43:21.975 INFO [stderr]   --> src/parser.rs:29:13
Nov 30 07:43:21.975 INFO [stderr]    |
Nov 30 07:43:21.976 INFO [stderr] 29 |         let mut exp = match self.get_cur_tok() {
Nov 30 07:43:21.976 INFO [stderr]    |             ----^^^
Nov 30 07:43:21.976 INFO [stderr]    |             |
Nov 30 07:43:21.980 INFO [stderr]    |             help: remove this `mut`
Nov 30 07:43:21.980 INFO [stderr]    |
Nov 30 07:43:21.980 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 07:43:21.980 INFO [stderr] 
Nov 30 07:43:21.980 INFO [stderr] warning: field is never used: `cur_tok_line`
Nov 30 07:43:21.980 INFO [stderr]  --> src/lexer.rs:5:5
Nov 30 07:43:21.980 INFO [stderr]   |
Nov 30 07:43:21.980 INFO [stderr] 5 |     cur_tok_line : usize,
Nov 30 07:43:21.980 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.980 INFO [stderr]   |
Nov 30 07:43:21.980 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 30 07:43:21.980 INFO [stderr] 
Nov 30 07:43:21.980 INFO [stderr] warning: field is never used: `cur_tok_col`
Nov 30 07:43:21.980 INFO [stderr]  --> src/lexer.rs:6:5
Nov 30 07:43:21.980 INFO [stderr]   |
Nov 30 07:43:21.980 INFO [stderr] 6 |     cur_tok_col : usize,
Nov 30 07:43:21.981 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:21.981 INFO [stderr] warning: field is never used: `src_len`
Nov 30 07:43:21.981 INFO [stderr]  --> src/lexer.rs:8:5
Nov 30 07:43:21.981 INFO [stderr]   |
Nov 30 07:43:21.981 INFO [stderr] 8 |     src_len : usize,
Nov 30 07:43:21.981 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:21.981 INFO [stderr] warning: field is never used: `expression`
Nov 30 07:43:21.981 INFO [stderr]   --> src/ast.rs:41:5
Nov 30 07:43:21.981 INFO [stderr]    |
Nov 30 07:43:21.981 INFO [stderr] 41 |     expression : Expression
Nov 30 07:43:21.981 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:21.981 INFO [stderr] warning: field is never used: `cur_tok`
Nov 30 07:43:21.981 INFO [stderr]  --> src/parser.rs:7:5
Nov 30 07:43:21.981 INFO [stderr]   |
Nov 30 07:43:21.981 INFO [stderr] 7 |     cur_tok : Token,
Nov 30 07:43:21.981 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:21.981 INFO [stderr] warning: method is never used: `parse_program`
Nov 30 07:43:21.981 INFO [stderr]   --> src/parser.rs:47:5
Nov 30 07:43:21.981 INFO [stderr]    |
Nov 30 07:43:21.981 INFO [stderr] 47 |     fn parse_program(&mut self) {
Nov 30 07:43:21.981 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:21.981 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 07:43:21.981 INFO [stderr]  --> src/main.rs:1:12
Nov 30 07:43:21.981 INFO [stderr]   |
Nov 30 07:43:21.981 INFO [stderr] 1 | #![feature(match_default_bindings)]
Nov 30 07:43:21.981 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 30 07:43:21.981 INFO [stderr]   |
Nov 30 07:43:21.981 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 30 07:43:21.981 INFO [stderr] 
Nov 30 07:43:22.017 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
Nov 30 07:43:22.019 INFO [stderr] su: No module specific data is present
Nov 30 07:43:22.594 INFO running `"docker" "inspect" "c3b307ca9884e69d9a4c850cf39acb8902cf4d9e92a3076b49b66826b11b4372"`
Nov 30 07:43:22.856 INFO running `"docker" "rm" "-f" "c3b307ca9884e69d9a4c850cf39acb8902cf4d9e92a3076b49b66826b11b4372"`
Nov 30 07:43:23.096 INFO [stdout] c3b307ca9884e69d9a4c850cf39acb8902cf4d9e92a3076b49b66826b11b4372