[INFO] fetching crate nftables 0.2.4...
[INFO] checking nftables-0.2.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate nftables 0.2.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate nftables 0.2.4 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 nftables 0.2.4
[INFO] finished tweaking crates.io crate nftables 0.2.4
[INFO] tweaked toml for crates.io crate nftables 0.2.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate nftables 0.2.4 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 59d36b0b9d421dab13e421d9e2a12324cc0ef0bc17c3223e343660b08f5c0ff8
[INFO] running `Command { std: "docker" "start" "-a" "59d36b0b9d421dab13e421d9e2a12324cc0ef0bc17c3223e343660b08f5c0ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d36b0b9d421dab13e421d9e2a12324cc0ef0bc17c3223e343660b08f5c0ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d36b0b9d421dab13e421d9e2a12324cc0ef0bc17c3223e343660b08f5c0ff8", kill_on_drop: false }`
[INFO] [stdout] 59d36b0b9d421dab13e421d9e2a12324cc0ef0bc17c3223e343660b08f5c0ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ef62040640d3e04c7f5c5663b1252ba2a5cb04918259c1276db4196eacded39b
[INFO] running `Command { std: "docker" "start" "-a" "ef62040640d3e04c7f5c5663b1252ba2a5cb04918259c1276db4196eacded39b", 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]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]     Checking serde_path_to_error v0.1.14
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking nftables v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "ef62040640d3e04c7f5c5663b1252ba2a5cb04918259c1276db4196eacded39b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef62040640d3e04c7f5c5663b1252ba2a5cb04918259c1276db4196eacded39b", kill_on_drop: false }`
[INFO] [stdout] ef62040640d3e04c7f5c5663b1252ba2a5cb04918259c1276db4196eacded39b
[INFO] checking nftables-0.2.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate nftables 0.2.4 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate nftables 0.2.4 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 nftables 0.2.4
[INFO] finished tweaking crates.io crate nftables 0.2.4
[INFO] tweaked toml for crates.io crate nftables 0.2.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate nftables 0.2.4 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4587123bd91b530e2f7d4a5380b63b6513cc63cfca0c23649cf4fe5e6f7dbc90
[INFO] running `Command { std: "docker" "start" "-a" "4587123bd91b530e2f7d4a5380b63b6513cc63cfca0c23649cf4fe5e6f7dbc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4587123bd91b530e2f7d4a5380b63b6513cc63cfca0c23649cf4fe5e6f7dbc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4587123bd91b530e2f7d4a5380b63b6513cc63cfca0c23649cf4fe5e6f7dbc90", kill_on_drop: false }`
[INFO] [stdout] 4587123bd91b530e2f7d4a5380b63b6513cc63cfca0c23649cf4fe5e6f7dbc90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5db5af35df4f1ad1e2aca974368028be11cd1161ca3907e51b706dbea01086c6
[INFO] running `Command { std: "docker" "start" "-a" "5db5af35df4f1ad1e2aca974368028be11cd1161ca3907e51b706dbea01086c6", 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 syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]    Compiling rustversion v1.0.14
[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] [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" "5db5af35df4f1ad1e2aca974368028be11cd1161ca3907e51b706dbea01086c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db5af35df4f1ad1e2aca974368028be11cd1161ca3907e51b706dbea01086c6", kill_on_drop: false }`
[INFO] [stdout] 5db5af35df4f1ad1e2aca974368028be11cd1161ca3907e51b706dbea01086c6