[INFO] fetching crate fcplug-rclib 0.2.1...
[INFO] checking fcplug-rclib-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate fcplug-rclib 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate fcplug-rclib 0.2.1 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 crates.io crate fcplug-rclib 0.2.1
[INFO] finished tweaking crates.io crate fcplug-rclib 0.2.1
[INFO] tweaked toml for crates.io crate fcplug-rclib 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cbindgen v0.24.5 (latest: v0.26.0)
[INFO] [stderr]       Adding clap v3.2.25 (latest: v4.5.4)
[INFO] [stderr]       Adding clap_lex v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding fcplug-build v0.2.4 (latest: v0.4.5)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.0)
[INFO] [stderr]       Adding os_str_bytes v6.6.1 (latest: v7.0.0)
[INFO] [stderr]       Adding protobuf v2.28.0 (latest: v3.4.0)
[INFO] [stderr]       Adding protobuf-codegen v2.28.0 (latest: v3.4.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding which v4.4.2 (latest: v6.0.1)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-appender v0.2.3
[INFO] [stderr]   Downloaded fcplug-macros v0.2.4
[INFO] [stderr]   Downloaded defer-lite v1.0.0
[INFO] [stderr]   Downloaded cbindgen v0.24.5
[INFO] [stderr]   Downloaded flatc-rust v0.2.0
[INFO] [stderr]   Downloaded fcplug-build v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5530b77c3efeecb633adb685b2ed5e565e144b021670f02eba12104867b387a9
[INFO] running `Command { std: "docker" "start" "-a" "5530b77c3efeecb633adb685b2ed5e565e144b021670f02eba12104867b387a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5530b77c3efeecb633adb685b2ed5e565e144b021670f02eba12104867b387a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5530b77c3efeecb633adb685b2ed5e565e144b021670f02eba12104867b387a9", kill_on_drop: false }`
[INFO] [stdout] 5530b77c3efeecb633adb685b2ed5e565e144b021670f02eba12104867b387a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a6cd87af3d8f131ab609fa91f761a42db62a4544c165bb07c874aff436db5bed
[INFO] running `Command { std: "docker" "start" "-a" "a6cd87af3d8f131ab609fa91f761a42db62a4544c165bb07c874aff436db5bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling cbindgen v0.24.5
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling protoc v2.28.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling flatc-rust v0.2.0
[INFO] [stderr]    Compiling protobuf-codegen v2.28.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling protoc-rust v2.28.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling flatbuffers v23.5.26
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling fcplug-macros v0.2.4
[INFO] [stderr]    Compiling fcplug-build v0.2.4
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking defer-lite v1.0.0
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]    Compiling fcplug-rclib v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `Command { std: "docker" "inspect" "a6cd87af3d8f131ab609fa91f761a42db62a4544c165bb07c874aff436db5bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6cd87af3d8f131ab609fa91f761a42db62a4544c165bb07c874aff436db5bed", kill_on_drop: false }`
[INFO] [stdout] a6cd87af3d8f131ab609fa91f761a42db62a4544c165bb07c874aff436db5bed
[INFO] checking fcplug-rclib-0.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate fcplug-rclib 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate fcplug-rclib 0.2.1 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 crates.io crate fcplug-rclib 0.2.1
[INFO] finished tweaking crates.io crate fcplug-rclib 0.2.1
[INFO] tweaked toml for crates.io crate fcplug-rclib 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9c26d0ee2ca32692bd5da201518121235ebf6d8e819bd471c99cf3572b102e9f
[INFO] running `Command { std: "docker" "start" "-a" "9c26d0ee2ca32692bd5da201518121235ebf6d8e819bd471c99cf3572b102e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c26d0ee2ca32692bd5da201518121235ebf6d8e819bd471c99cf3572b102e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c26d0ee2ca32692bd5da201518121235ebf6d8e819bd471c99cf3572b102e9f", kill_on_drop: false }`
[INFO] [stdout] 9c26d0ee2ca32692bd5da201518121235ebf6d8e819bd471c99cf3572b102e9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 93a0d81bb647a6a5577c41ee2a6c0913776ae9068326d4dd1347bebca48c0bee
[INFO] running `Command { std: "docker" "start" "-a" "93a0d81bb647a6a5577c41ee2a6c0913776ae9068326d4dd1347bebca48c0bee", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cbindgen v0.24.5
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/protobuf-2.28.0/src/enums.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `protobuf` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "93a0d81bb647a6a5577c41ee2a6c0913776ae9068326d4dd1347bebca48c0bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a0d81bb647a6a5577c41ee2a6c0913776ae9068326d4dd1347bebca48c0bee", kill_on_drop: false }`
[INFO] [stdout] 93a0d81bb647a6a5577c41ee2a6c0913776ae9068326d4dd1347bebca48c0bee