[INFO] cloning repository https://github.com/oldgalileo/rust-unix-socket-lengths
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oldgalileo/rust-unix-socket-lengths" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldgalileo%2Frust-unix-socket-lengths", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldgalileo%2Frust-unix-socket-lengths'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c498c6b5305a557f046af3edf75a8d6df2a49e2
[INFO] checking oldgalileo/rust-unix-socket-lengths against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldgalileo%2Frust-unix-socket-lengths" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oldgalileo/rust-unix-socket-lengths on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oldgalileo/rust-unix-socket-lengths
[INFO] finished tweaking git repo https://github.com/oldgalileo/rust-unix-socket-lengths
[INFO] tweaked toml for git repo https://github.com/oldgalileo/rust-unix-socket-lengths written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/oldgalileo/rust-unix-socket-lengths already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb7e44549b014ba0529d881a3b10f545e7584c67e664f0fe0f3da8de6b8405fc
[INFO] running `Command { std: "docker" "start" "-a" "eb7e44549b014ba0529d881a3b10f545e7584c67e664f0fe0f3da8de6b8405fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb7e44549b014ba0529d881a3b10f545e7584c67e664f0fe0f3da8de6b8405fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7e44549b014ba0529d881a3b10f545e7584c67e664f0fe0f3da8de6b8405fc", kill_on_drop: false }`
[INFO] [stdout] eb7e44549b014ba0529d881a3b10f545e7584c67e664f0fe0f3da8de6b8405fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc40d5613781c45dd2ab5eaa8b2b9a84146159e8115cfdc041efa512770a18a3
[INFO] running `Command { std: "docker" "start" "-a" "dc40d5613781c45dd2ab5eaa8b2b9a84146159e8115cfdc041efa512770a18a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking rust-unix-socket-lengths v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "dc40d5613781c45dd2ab5eaa8b2b9a84146159e8115cfdc041efa512770a18a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc40d5613781c45dd2ab5eaa8b2b9a84146159e8115cfdc041efa512770a18a3", kill_on_drop: false }`
[INFO] [stdout] dc40d5613781c45dd2ab5eaa8b2b9a84146159e8115cfdc041efa512770a18a3
[INFO] checking oldgalileo/rust-unix-socket-lengths against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foldgalileo%2Frust-unix-socket-lengths" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oldgalileo/rust-unix-socket-lengths on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oldgalileo/rust-unix-socket-lengths
[INFO] finished tweaking git repo https://github.com/oldgalileo/rust-unix-socket-lengths
[INFO] tweaked toml for git repo https://github.com/oldgalileo/rust-unix-socket-lengths written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/oldgalileo/rust-unix-socket-lengths already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c92237fb1c314e1f622087a1b5bd11911f9fc3590816c98ac21c95f52dc118fc
[INFO] running `Command { std: "docker" "start" "-a" "c92237fb1c314e1f622087a1b5bd11911f9fc3590816c98ac21c95f52dc118fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c92237fb1c314e1f622087a1b5bd11911f9fc3590816c98ac21c95f52dc118fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92237fb1c314e1f622087a1b5bd11911f9fc3590816c98ac21c95f52dc118fc", kill_on_drop: false }`
[INFO] [stdout] c92237fb1c314e1f622087a1b5bd11911f9fc3590816c98ac21c95f52dc118fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8f70a597abd3d025146a3846441285105da527cb9e8a056067b03ed0b197d77
[INFO] running `Command { std: "docker" "start" "-a" "c8f70a597abd3d025146a3846441285105da527cb9e8a056067b03ed0b197d77", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking rust-unix-socket-lengths v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/main.rs:525:17
[INFO] [stdout]     |
[INFO] [stdout] 525 |           let _ = match UnixListener::bind(sock_path) {
[INFO] [stdout]     |  _________________^
[INFO] [stdout] 526 | |             Err(err) => panic!("failed to bind socket: {err}"),
[INFO] [stdout] 527 | |             Ok(_) => panic!("should not be possible!!!"),
[INFO] [stdout] 528 | |         };
[INFO] [stdout]     | |_________^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-unix-socket-lengths` (bin "rust-unix-socket-lengths" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c8f70a597abd3d025146a3846441285105da527cb9e8a056067b03ed0b197d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f70a597abd3d025146a3846441285105da527cb9e8a056067b03ed0b197d77", kill_on_drop: false }`
[INFO] [stdout] c8f70a597abd3d025146a3846441285105da527cb9e8a056067b03ed0b197d77