[INFO] fetching crate ctrlc2 3.5.5...
[INFO] checking ctrlc2-3.5.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ctrlc2 3.5.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate ctrlc2 3.5.5 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 ctrlc2 3.5.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctrlc2 3.5.5
[INFO] tweaked toml for crates.io crate ctrlc2 3.5.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate ctrlc2 3.5.5 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-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] e32671f785f1afe691b1db162e4d612dcdbc6dc01c247f2711f8f7a5f20e74d3
[INFO] running `Command { std: "docker" "start" "-a" "e32671f785f1afe691b1db162e4d612dcdbc6dc01c247f2711f8f7a5f20e74d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e32671f785f1afe691b1db162e4d612dcdbc6dc01c247f2711f8f7a5f20e74d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32671f785f1afe691b1db162e4d612dcdbc6dc01c247f2711f8f7a5f20e74d3", kill_on_drop: false }`
[INFO] [stdout] e32671f785f1afe691b1db162e4d612dcdbc6dc01c247f2711f8f7a5f20e74d3
[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] a7f44cbe2a5053f915388f6ee743f1138da765dcc2dadbbb7746b60a2aa33432
[INFO] running `Command { std: "docker" "start" "-a" "a7f44cbe2a5053f915388f6ee743f1138da765dcc2dadbbb7746b60a2aa33432", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]     Checking ctrlc2 v3.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ctrlc2` is imported redundantly
[INFO] [stdout]   --> examples/readme_example.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ctrlc2;
[INFO] [stdout]    |     ^^^^^^ the item `ctrlc2` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "a7f44cbe2a5053f915388f6ee743f1138da765dcc2dadbbb7746b60a2aa33432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f44cbe2a5053f915388f6ee743f1138da765dcc2dadbbb7746b60a2aa33432", kill_on_drop: false }`
[INFO] [stdout] a7f44cbe2a5053f915388f6ee743f1138da765dcc2dadbbb7746b60a2aa33432
[INFO] checking ctrlc2-3.5.5 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate ctrlc2 3.5.5 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate ctrlc2 3.5.5 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 ctrlc2 3.5.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctrlc2 3.5.5
[INFO] tweaked toml for crates.io crate ctrlc2 3.5.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate ctrlc2 3.5.5 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-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] 48060d994bd447ac26c7d951e41ff25418c7ddd816324b185335cfe75dd5c622
[INFO] running `Command { std: "docker" "start" "-a" "48060d994bd447ac26c7d951e41ff25418c7ddd816324b185335cfe75dd5c622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48060d994bd447ac26c7d951e41ff25418c7ddd816324b185335cfe75dd5c622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48060d994bd447ac26c7d951e41ff25418c7ddd816324b185335cfe75dd5c622", kill_on_drop: false }`
[INFO] [stdout] 48060d994bd447ac26c7d951e41ff25418c7ddd816324b185335cfe75dd5c622
[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] 4ea87404c72d09cdec9e40b8484609199136b6fd31482c05c81c154f628eb970
[INFO] running `Command { std: "docker" "start" "-a" "4ea87404c72d09cdec9e40b8484609199136b6fd31482c05c81c154f628eb970", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.1/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[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 `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4ea87404c72d09cdec9e40b8484609199136b6fd31482c05c81c154f628eb970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ea87404c72d09cdec9e40b8484609199136b6fd31482c05c81c154f628eb970", kill_on_drop: false }`
[INFO] [stdout] 4ea87404c72d09cdec9e40b8484609199136b6fd31482c05c81c154f628eb970