[INFO] fetching crate taskt 0.3.0...
[INFO] checking taskt-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate taskt 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate taskt 0.3.0 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 taskt 0.3.0
[INFO] finished tweaking crates.io crate taskt 0.3.0
[INFO] tweaked toml for crates.io crate taskt 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate taskt 0.3.0 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 ratatui v0.21.0
[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] 23d796fedc12ea5eb09f835ebd66f56824dd8b19b7e46009fc31e803e4b2d719
[INFO] running `Command { std: "docker" "start" "-a" "23d796fedc12ea5eb09f835ebd66f56824dd8b19b7e46009fc31e803e4b2d719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23d796fedc12ea5eb09f835ebd66f56824dd8b19b7e46009fc31e803e4b2d719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d796fedc12ea5eb09f835ebd66f56824dd8b19b7e46009fc31e803e4b2d719", kill_on_drop: false }`
[INFO] [stdout] 23d796fedc12ea5eb09f835ebd66f56824dd8b19b7e46009fc31e803e4b2d719
[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] 31920c1285738b46527b46945fa6204a0400b1067b820ddc5959bbafae41b0e5
[INFO] running `Command { std: "docker" "start" "-a" "31920c1285738b46527b46945fa6204a0400b1067b820ddc5959bbafae41b0e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking signal-hook v0.3.15
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking directories v5.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]     Checking time v0.3.23
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.26.1
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]     Checking ratatui v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]     Checking serde v1.0.171
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking serde_json v1.0.102
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking taskt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/todo.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{prelude::*, BufReader, Error, Write},
[INFO] [stdout]   |          ----------                    ^^^^^
[INFO] [stdout]   |          |
[INFO] [stdout]   |          the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/todo.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{prelude::*, BufReader, Error, Write},
[INFO] [stdout]   |          ----------                    ^^^^^
[INFO] [stdout]   |          |
[INFO] [stdout]   |          the item `Write` is already imported here
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "31920c1285738b46527b46945fa6204a0400b1067b820ddc5959bbafae41b0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31920c1285738b46527b46945fa6204a0400b1067b820ddc5959bbafae41b0e5", kill_on_drop: false }`
[INFO] [stdout] 31920c1285738b46527b46945fa6204a0400b1067b820ddc5959bbafae41b0e5
[INFO] checking taskt-0.3.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate taskt 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate taskt 0.3.0 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 taskt 0.3.0
[INFO] finished tweaking crates.io crate taskt 0.3.0
[INFO] tweaked toml for crates.io crate taskt 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate taskt 0.3.0 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] 5b2ad2e3ce182a2e21f43c5dacda9b23f653dae5434b8cc0b813090ad576f77b
[INFO] running `Command { std: "docker" "start" "-a" "5b2ad2e3ce182a2e21f43c5dacda9b23f653dae5434b8cc0b813090ad576f77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2ad2e3ce182a2e21f43c5dacda9b23f653dae5434b8cc0b813090ad576f77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2ad2e3ce182a2e21f43c5dacda9b23f653dae5434b8cc0b813090ad576f77b", kill_on_drop: false }`
[INFO] [stdout] 5b2ad2e3ce182a2e21f43c5dacda9b23f653dae5434b8cc0b813090ad576f77b
[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] 7a8d7dbd982e174ecda06b9e33313eba51fb142dd69d424f1da5812d232939fb
[INFO] running `Command { std: "docker" "start" "-a" "7a8d7dbd982e174ecda06b9e33313eba51fb142dd69d424f1da5812d232939fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling serde_json v1.0.102
[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] [stderr]     Checking winnow v0.5.0
[INFO] [stderr]     Checking mio v0.8.8
[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" "7a8d7dbd982e174ecda06b9e33313eba51fb142dd69d424f1da5812d232939fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a8d7dbd982e174ecda06b9e33313eba51fb142dd69d424f1da5812d232939fb", kill_on_drop: false }`
[INFO] [stdout] 7a8d7dbd982e174ecda06b9e33313eba51fb142dd69d424f1da5812d232939fb