[INFO] fetching crate cfg 0.5.0... [INFO] checking cfg-0.5.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744 [INFO] extracting crate cfg 0.5.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate cfg 0.5.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cfg 0.5.0 [INFO] finished tweaking crates.io crate cfg 0.5.0 [INFO] tweaked toml for crates.io crate cfg 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 705dc54a50dd7fc8b76686bb8fa7f05847a42279c9a8e156b2df4bb3f897082e [INFO] running `Command { std: "docker" "start" "-a" "705dc54a50dd7fc8b76686bb8fa7f05847a42279c9a8e156b2df4bb3f897082e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "705dc54a50dd7fc8b76686bb8fa7f05847a42279c9a8e156b2df4bb3f897082e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "705dc54a50dd7fc8b76686bb8fa7f05847a42279c9a8e156b2df4bb3f897082e", kill_on_drop: false }` [INFO] [stdout] 705dc54a50dd7fc8b76686bb8fa7f05847a42279c9a8e156b2df4bb3f897082e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ae5979c0be9201725cfb664633e5148feafa107f77d104c8139608d54e07f80f [INFO] running `Command { std: "docker" "start" "-a" "ae5979c0be9201725cfb664633e5148feafa107f77d104c8139608d54e07f80f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Checking optional v0.5.0 [INFO] [stderr] Checking bit-matrix v0.6.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking cfg v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] error: unnecessary parentheses around type [INFO] [stdout] --> src/symbol/source.rs:48:34 [INFO] [stdout] | [INFO] [stdout] 48 | impl SymbolContainer for ( Symbol $(, $T)* ) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] ... [INFO] [stdout] 60 | / impl_generate!( [INFO] [stdout] 61 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 62 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 63 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] ... | [INFO] [stdout] 106 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 107 | | ); [INFO] [stdout] | |__- in this macro invocation [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:13:24 [INFO] [stdout] | [INFO] [stdout] 13 | #![cfg_attr(test, deny(warnings))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[deny(unused_parens)]` implied by `#[deny(warnings)]` [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/symbol/source.rs:48:34 [INFO] [stdout] | [INFO] [stdout] 48 | impl SymbolContainer for ( Symbol $(, $T)* ) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] ... [INFO] [stdout] 60 | / impl_generate!( [INFO] [stdout] 61 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 62 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 63 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] ... | [INFO] [stdout] 106 | | Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, Symbol, next_sym, [INFO] [stdout] 107 | | ); [INFO] [stdout] | |__- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cfg` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/remap.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | mem::replace(self.grammar.sym_source_mut(), intern.source); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "ae5979c0be9201725cfb664633e5148feafa107f77d104c8139608d54e07f80f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae5979c0be9201725cfb664633e5148feafa107f77d104c8139608d54e07f80f", kill_on_drop: false }` [INFO] [stdout] ae5979c0be9201725cfb664633e5148feafa107f77d104c8139608d54e07f80f