[INFO] crate frunk_core 0.3.1 is already in cache
[INFO] checking frunk_core-0.3.1 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate frunk_core 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate frunk_core 0.3.1 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate frunk_core 0.3.1
[INFO] finished tweaking crates.io crate frunk_core 0.3.1
[INFO] tweaked toml for crates.io crate frunk_core 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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] e664e774f61e94f26ade520e0fb6c8b478acf6867f08531fba1a6484dc4a6587
[INFO] running `"docker" "start" "-a" "e664e774f61e94f26ade520e0fb6c8b478acf6867f08531fba1a6484dc4a6587"`
[INFO] [stderr]    Compiling frunk_core v0.3.1
[INFO] [stderr]     Checking frunk_core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.4
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.3
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.3
[INFO] [stderr]    Compiling frunk_derives v0.3.1
[INFO] [stderr]     Checking frunk_proc_macros v0.0.3
[INFO] [stderr]     Checking frunk v0.3.1
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/macros.rs:334:66
[INFO] [stderr]     |
[INFO] [stderr] 334 |         let hlist_pat![...hlist_pat![C]]: Hlist![...Hlist![C]] = { hlist![...hlist![C]] };
[INFO] [stderr]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/macros.rs:335:72
[INFO] [stderr]     |
[INFO] [stderr] 335 |         let hlist_pat![A, ...hlist_pat![C]]: Hlist![A, ...Hlist![C]] = { hlist![A, ...hlist![C]] };
[INFO] [stderr]     |                                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/macros.rs:337:13
[INFO] [stderr]     |
[INFO] [stderr] 337 |             { hlist![A, B, ...hlist![C]] };
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]     --> src/coproduct.rs:1125:21
[INFO] [stderr]      |
[INFO] [stderr] 1125 |                 let res: Result<CNil, _> = cnil.subset();
[INFO] [stderr]      |                     ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.16s
[INFO] running `"docker" "inspect" "e664e774f61e94f26ade520e0fb6c8b478acf6867f08531fba1a6484dc4a6587"`
[INFO] running `"docker" "rm" "-f" "e664e774f61e94f26ade520e0fb6c8b478acf6867f08531fba1a6484dc4a6587"`
[INFO] [stdout] e664e774f61e94f26ade520e0fb6c8b478acf6867f08531fba1a6484dc4a6587