[INFO] fetching crate signals 0.0.5...
[INFO] checking signals-0.0.5 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate signals 0.0.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate signals 0.0.5 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate signals 0.0.5
[INFO] finished tweaking crates.io crate signals 0.0.5
[INFO] tweaked toml for crates.io crate signals 0.0.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] bd0942f79ab88993466f6b6241835381c8fab91c9c16f2c452da2177c0fe6dec
[INFO] running `"docker" "start" "-a" "bd0942f79ab88993466f6b6241835381c8fab91c9c16f2c452da2177c0fe6dec"`
[INFO] [stderr]     Checking signals v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:28
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub type AmEmitter<T> = Am<Emitter<input=T>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Emitter<input=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:24
[INFO] [stderr]    |
[INFO] [stderr] 82 | type WmEmitter<T> = Wm<Emitter<input=T>>;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Emitter<input=T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:28
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub type AmEmitter<T> = Am<Emitter<input=T>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Emitter<input=T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:24
[INFO] [stderr]    |
[INFO] [stderr] 82 | type WmEmitter<T> = Wm<Emitter<input=T>>;
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Emitter<input=T>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "bd0942f79ab88993466f6b6241835381c8fab91c9c16f2c452da2177c0fe6dec"`
[INFO] running `"docker" "rm" "-f" "bd0942f79ab88993466f6b6241835381c8fab91c9c16f2c452da2177c0fe6dec"`
[INFO] [stdout] bd0942f79ab88993466f6b6241835381c8fab91c9c16f2c452da2177c0fe6dec