[INFO] updating cached repository https://github.com/abhijeetbhagat/krum [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cd9af066de29ee92e754a061ce000021e720c657 [INFO] checking abhijeetbhagat/krum against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhijeetbhagat%2Fkrum" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abhijeetbhagat/krum on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/abhijeetbhagat/krum [INFO] finished tweaking git repo https://github.com/abhijeetbhagat/krum [INFO] tweaked toml for git repo https://github.com/abhijeetbhagat/krum written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/abhijeetbhagat/krum already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8b079af2b244ac28dec89e0fff6e588167b6c5bc4507f53bab48014f0d2e0998 [INFO] running `"docker" "start" "-a" "8b079af2b244ac28dec89e0fff6e588167b6c5bc4507f53bab48014f0d2e0998"` [INFO] [stderr] Checking krum v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/parser.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 29 | let mut exp = match self.get_cur_tok() { [INFO] [stderr] | _______________________- [INFO] [stderr] 30 | | Token::LeftParen => { [INFO] [stderr] 31 | | return Expression::Dummy [INFO] [stderr] 32 | | } [INFO] [stderr] ... | [INFO] [stderr] 42 | | _ => return Expression::Dummy [INFO] [stderr] 43 | | }; [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 44 | return exp [INFO] [stderr] | ^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `exp` [INFO] [stderr] --> src/parser.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut exp = match self.get_cur_tok() { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exp` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/parser.rs:44:9 [INFO] [stderr] | [INFO] [stderr] 29 | let mut exp = match self.get_cur_tok() { [INFO] [stderr] | _______________________- [INFO] [stderr] 30 | | Token::LeftParen => { [INFO] [stderr] 31 | | return Expression::Dummy [INFO] [stderr] 32 | | } [INFO] [stderr] ... | [INFO] [stderr] 42 | | _ => return Expression::Dummy [INFO] [stderr] 43 | | }; [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 44 | return exp [INFO] [stderr] | ^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `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 read: `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 read: `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 read: `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 read: `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: unused variable: `exp` [INFO] [stderr] --> src/parser.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut exp = match self.get_cur_tok() { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exp` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: field is never read: `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 read: `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 read: `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 read: `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 read: `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: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `"docker" "inspect" "8b079af2b244ac28dec89e0fff6e588167b6c5bc4507f53bab48014f0d2e0998"` [INFO] running `"docker" "rm" "-f" "8b079af2b244ac28dec89e0fff6e588167b6c5bc4507f53bab48014f0d2e0998"` [INFO] [stdout] 8b079af2b244ac28dec89e0fff6e588167b6c5bc4507f53bab48014f0d2e0998