[INFO] fetching crate neli 0.7.0-rc2...
[INFO] checking neli-0.7.0-rc2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate neli 0.7.0-rc2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate neli 0.7.0-rc2 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 neli 0.7.0-rc2
[INFO] finished tweaking crates.io crate neli 0.7.0-rc2
[INFO] tweaked toml for crates.io crate neli 0.7.0-rc2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate neli 0.7.0-rc2 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded neli-proc-macros v0.2.0-rc2
[INFO] [stderr]   Downloaded tokio v1.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c18a43442170e2aeaf222cc41917f36073f0eaa2632d7b436e1057a6cc3dc2ea
[INFO] running `Command { std: "docker" "start" "-a" "c18a43442170e2aeaf222cc41917f36073f0eaa2632d7b436e1057a6cc3dc2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c18a43442170e2aeaf222cc41917f36073f0eaa2632d7b436e1057a6cc3dc2ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18a43442170e2aeaf222cc41917f36073f0eaa2632d7b436e1057a6cc3dc2ea", kill_on_drop: false }`
[INFO] [stdout] c18a43442170e2aeaf222cc41917f36073f0eaa2632d7b436e1057a6cc3dc2ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 83d8eaeae2302c3884c1b4c3f2d97a240316ac7348d6b22d7dacd55c1f0a1e06
[INFO] running `Command { std: "docker" "start" "-a" "83d8eaeae2302c3884c1b4c3f2d97a240316ac7348d6b22d7dacd55c1f0a1e06", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking aho-corasick v1.0.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tokio v1.31.0
[INFO] [stderr]    Compiling neli-proc-macros v0.2.0-rc2
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling derive_builder_core v0.11.2
[INFO] [stderr]    Compiling derive_builder_macro v0.11.2
[INFO] [stderr]     Checking derive_builder v0.11.2
[INFO] [stderr]     Checking neli v0.7.0-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/types.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     iter::FromIterator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/types.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     iter::FromIterator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `AttrTypeBuilder` is imported redundantly
[INFO] [stdout]    --> src/types.rs:396:16
[INFO] [stdout]     |
[INFO] [stdout] 392 |     use super::*;
[INFO] [stdout]     |         -------- the item `AttrTypeBuilder` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 396 |         genl::{AttrTypeBuilder, NlattrBuilder},
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NlattrBuilder` is imported redundantly
[INFO] [stdout]    --> src/types.rs:396:33
[INFO] [stdout]     |
[INFO] [stdout] 392 |     use super::*;
[INFO] [stdout]     |         -------- the item `NlattrBuilder` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 396 |         genl::{AttrTypeBuilder, NlattrBuilder},
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "83d8eaeae2302c3884c1b4c3f2d97a240316ac7348d6b22d7dacd55c1f0a1e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d8eaeae2302c3884c1b4c3f2d97a240316ac7348d6b22d7dacd55c1f0a1e06", kill_on_drop: false }`
[INFO] [stdout] 83d8eaeae2302c3884c1b4c3f2d97a240316ac7348d6b22d7dacd55c1f0a1e06
[INFO] checking neli-0.7.0-rc2 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate neli 0.7.0-rc2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate neli 0.7.0-rc2 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 neli 0.7.0-rc2
[INFO] finished tweaking crates.io crate neli 0.7.0-rc2
[INFO] tweaked toml for crates.io crate neli 0.7.0-rc2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate neli 0.7.0-rc2 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8681a4c0f9f6b0b0326bf2500a9d3f595846163d88e9fdf4270396d6bbf7f094
[INFO] running `Command { std: "docker" "start" "-a" "8681a4c0f9f6b0b0326bf2500a9d3f595846163d88e9fdf4270396d6bbf7f094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8681a4c0f9f6b0b0326bf2500a9d3f595846163d88e9fdf4270396d6bbf7f094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8681a4c0f9f6b0b0326bf2500a9d3f595846163d88e9fdf4270396d6bbf7f094", kill_on_drop: false }`
[INFO] [stdout] 8681a4c0f9f6b0b0326bf2500a9d3f595846163d88e9fdf4270396d6bbf7f094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c8604e78ad03a251c7ef98f4fea75f185150cae39736af7f597d77b83304d180
[INFO] running `Command { std: "docker" "start" "-a" "c8604e78ad03a251c7ef98f4fea75f185150cae39736af7f597d77b83304d180", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking aho-corasick v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.183/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         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]     Checking bitflags v2.4.0
[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 `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c8604e78ad03a251c7ef98f4fea75f185150cae39736af7f597d77b83304d180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8604e78ad03a251c7ef98f4fea75f185150cae39736af7f597d77b83304d180", kill_on_drop: false }`
[INFO] [stdout] c8604e78ad03a251c7ef98f4fea75f185150cae39736af7f597d77b83304d180