[INFO] crate extension-trait 0.2.1 is already in cache
[INFO] checking extension-trait-0.2.1 against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] extracting crate extension-trait 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate extension-trait 0.2.1 on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate extension-trait 0.2.1
[INFO] finished tweaking crates.io crate extension-trait 0.2.1
[INFO] tweaked toml for crates.io crate extension-trait 0.2.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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] d8467c14217a4bb869d60c4c1b323432792125d48631cd1fe1e9d25151259379
[INFO] running `"docker" "start" "-a" "d8467c14217a4bb869d60c4c1b323432792125d48631cd1fe1e9d25151259379"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking quote v1.0.6
[INFO] [stderr]     Checking extension-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lib.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         (quote! {
[INFO] [stderr] 78 | |             #(#attrs)*
[INFO] [stderr] 79 | |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 | |                 #(#items)*
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |         }
[INFO] [stderr] 84 | |         .into())
[INFO] [stderr]    | |________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 77 |         quote! {
[INFO] [stderr] 78 |             #(#attrs)*
[INFO] [stderr] 79 |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 |                 #(#items)*
[INFO] [stderr] 81 |             }
[INFO] [stderr] 82 |             #input
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lib.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         (quote! {
[INFO] [stderr] 78 | |             #(#attrs)*
[INFO] [stderr] 79 | |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 | |                 #(#items)*
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |         }
[INFO] [stderr] 84 | |         .into())
[INFO] [stderr]    | |________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 77 |         quote! {
[INFO] [stderr] 78 |             #(#attrs)*
[INFO] [stderr] 79 |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 |                 #(#items)*
[INFO] [stderr] 81 |             }
[INFO] [stderr] 82 |             #input
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lib.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         (quote! {
[INFO] [stderr] 78 | |             #(#attrs)*
[INFO] [stderr] 79 | |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 | |                 #(#items)*
[INFO] [stderr] ...  |
[INFO] [stderr] 83 | |         }
[INFO] [stderr] 84 | |         .into())
[INFO] [stderr]    | |________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 77 |         quote! {
[INFO] [stderr] 78 |             #(#attrs)*
[INFO] [stderr] 79 |             #visibility #unsafety trait #path {
[INFO] [stderr] 80 |                 #(#items)*
[INFO] [stderr] 81 |             }
[INFO] [stderr] 82 |             #input
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.37s
[INFO] running `"docker" "inspect" "d8467c14217a4bb869d60c4c1b323432792125d48631cd1fe1e9d25151259379"`
[INFO] running `"docker" "rm" "-f" "d8467c14217a4bb869d60c4c1b323432792125d48631cd1fe1e9d25151259379"`
[INFO] [stdout] d8467c14217a4bb869d60c4c1b323432792125d48631cd1fe1e9d25151259379