[INFO] crate fr 0.1.1 is already in cache [INFO] checking fr-0.1.1 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880 [INFO] extracting crate fr 0.1.1 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate fr 0.1.1 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368 [INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate fr 0.1.1 [INFO] finished tweaking crates.io crate fr 0.1.1 [INFO] tweaked toml for crates.io crate fr 0.1.1 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate crates.io crate fr 0.1.1 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+13f916f63bc6575d5ff1f989237dfabe88981368" "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] efcefeeafddf162fa8a054f66c6f85a3be754cf20d5c05b3f6a5f61e32bbdb7a [INFO] running `"docker" "start" "-a" "efcefeeafddf162fa8a054f66c6f85a3be754cf20d5c05b3f6a5f61e32bbdb7a"` [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling regex-syntax v0.6.14 [INFO] [stderr] Checking ordermap v0.3.5 [INFO] [stderr] Checking diff v0.1.12 [INFO] [stderr] Compiling aho-corasick v0.7.7 [INFO] [stderr] Compiling ena v0.13.1 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking comment-strip v0.1.3 [INFO] [stderr] Checking comment v0.1.0 [INFO] [stderr] Checking ascii-canvas v2.0.0 [INFO] [stderr] Checking petgraph v0.4.13 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] Checking string_cache v0.7.5 [INFO] [stderr] Checking lalrpop v0.17.2 [INFO] [stderr] Compiling fr v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> build.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | / lalrpop::Configuration::new() [INFO] [stderr] 5 | | .generate_in_source_tree() [INFO] [stderr] 6 | | .process(); [INFO] [stderr] | |___________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40417:5 [INFO] [stderr] | [INFO] [stderr] 40417 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40428:5 [INFO] [stderr] | [INFO] [stderr] 40428 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40439:5 [INFO] [stderr] | [INFO] [stderr] 40439 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40450:5 [INFO] [stderr] | [INFO] [stderr] 40450 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40461:5 [INFO] [stderr] | [INFO] [stderr] 40461 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40472:5 [INFO] [stderr] | [INFO] [stderr] 40472 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40483:5 [INFO] [stderr] | [INFO] [stderr] 40483 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40494:5 [INFO] [stderr] | [INFO] [stderr] 40494 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40505:5 [INFO] [stderr] | [INFO] [stderr] 40505 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40516:5 [INFO] [stderr] | [INFO] [stderr] 40516 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40527:5 [INFO] [stderr] | [INFO] [stderr] 40527 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40417:5 [INFO] [stderr] | [INFO] [stderr] 40417 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40428:5 [INFO] [stderr] | [INFO] [stderr] 40428 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40439:5 [INFO] [stderr] | [INFO] [stderr] 40439 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40450:5 [INFO] [stderr] | [INFO] [stderr] 40450 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40461:5 [INFO] [stderr] | [INFO] [stderr] 40461 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40472:5 [INFO] [stderr] | [INFO] [stderr] 40472 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40483:5 [INFO] [stderr] | [INFO] [stderr] 40483 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40494:5 [INFO] [stderr] | [INFO] [stderr] 40494 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40505:5 [INFO] [stderr] | [INFO] [stderr] 40505 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40516:5 [INFO] [stderr] | [INFO] [stderr] 40516 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40527:5 [INFO] [stderr] | [INFO] [stderr] 40527 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40538:5 [INFO] [stderr] | [INFO] [stderr] 40538 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40549:5 [INFO] [stderr] | [INFO] [stderr] 40549 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40967:5 [INFO] [stderr] | [INFO] [stderr] 40967 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40538:5 [INFO] [stderr] | [INFO] [stderr] 40538 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40549:5 [INFO] [stderr] | [INFO] [stderr] 40549 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/parser.rs:40967:5 [INFO] [stderr] | [INFO] [stderr] 40967 | (__0) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `original_len` [INFO] [stderr] --> src/bin.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | let original_len = compiled.len(); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_original_len` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `original_len` [INFO] [stderr] --> src/bin.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | let original_len = compiled.len(); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_original_len` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 45s [INFO] running `"docker" "inspect" "efcefeeafddf162fa8a054f66c6f85a3be754cf20d5c05b3f6a5f61e32bbdb7a"` [INFO] running `"docker" "rm" "-f" "efcefeeafddf162fa8a054f66c6f85a3be754cf20d5c05b3f6a5f61e32bbdb7a"` [INFO] [stdout] efcefeeafddf162fa8a054f66c6f85a3be754cf20d5c05b3f6a5f61e32bbdb7a