[INFO] updating cached repository abhijeetbhagat/krum
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/abhijeetbhagat/krum
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/abhijeetbhagat/krum" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/abhijeetbhagat/krum"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/abhijeetbhagat/krum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/abhijeetbhagat/krum" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/abhijeetbhagat/krum"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/abhijeetbhagat/krum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cd9af066de29ee92e754a061ce000021e720c657
[INFO] sha for GitHub repo abhijeetbhagat/krum: cd9af066de29ee92e754a061ce000021e720c657
[INFO] validating manifest of abhijeetbhagat/krum on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of abhijeetbhagat/krum on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing abhijeetbhagat/krum
[INFO] finished frobbing abhijeetbhagat/krum
[INFO] frobbed toml for abhijeetbhagat/krum written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/abhijeetbhagat/krum/Cargo.toml
[INFO] started frobbing abhijeetbhagat/krum
[INFO] finished frobbing abhijeetbhagat/krum
[INFO] frobbed toml for abhijeetbhagat/krum written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/abhijeetbhagat/krum/Cargo.toml
[INFO] crate abhijeetbhagat/krum already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking abhijeetbhagat/krum against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-0/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/abhijeetbhagat/krum:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b57819684516f1c0a90f7f83bfaec0064fc824e4a6b06d87287c271c4e29bd2a
[INFO] running `"docker" "start" "-a" "b57819684516f1c0a90f7f83bfaec0064fc824e4a6b06d87287c271c4e29bd2a"`
[INFO] [stderr]     Checking krum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/parser.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         return exp
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exp`
[INFO] [stderr]   --> src/parser.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut exp = match self.get_cur_tok() {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_exp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut exp = match self.get_cur_tok() {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok_line`
[INFO] [stderr]  --> src/lexer.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     cur_tok_line : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok_col`
[INFO] [stderr]  --> src/lexer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     cur_tok_col : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `src_len`
[INFO] [stderr]  --> src/lexer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     src_len : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `expression`
[INFO] [stderr]   --> src/ast.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     expression : Expression
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok`
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cur_tok : Token,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn parse_program(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(match_default_bindings)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/parser.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         return exp
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exp`
[INFO] [stderr]   --> src/parser.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut exp = match self.get_cur_tok() {
[INFO] [stderr]    |                 ^^^ help: consider prefixing with an underscore: `_exp`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let mut exp = match self.get_cur_tok() {
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok_line`
[INFO] [stderr]  --> src/lexer.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     cur_tok_line : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok_col`
[INFO] [stderr]  --> src/lexer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     cur_tok_col : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `src_len`
[INFO] [stderr]  --> src/lexer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     src_len : usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `expression`
[INFO] [stderr]   --> src/ast.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     expression : Expression
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cur_tok`
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     cur_tok : Token,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn parse_program(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(match_default_bindings)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "b57819684516f1c0a90f7f83bfaec0064fc824e4a6b06d87287c271c4e29bd2a"`
[INFO] running `"docker" "rm" "-f" "b57819684516f1c0a90f7f83bfaec0064fc824e4a6b06d87287c271c4e29bd2a"`
[INFO] [stdout] b57819684516f1c0a90f7f83bfaec0064fc824e4a6b06d87287c271c4e29bd2a