[INFO] fetching crate headifier 0.1.2...
[INFO] checking headifier-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate headifier 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate headifier 0.1.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate headifier 0.1.2
[INFO] finished tweaking crates.io crate headifier 0.1.2
[INFO] tweaked toml for crates.io crate headifier 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate headifier 0.1.2 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v2.0.4
[INFO] [stderr]   Downloaded ratatui v0.23.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bc5246f8b527c594008b46ac6afec49b29e9e81d68ee568369082a3c80b84d5
[INFO] running `Command { std: "docker" "start" "-a" "0bc5246f8b527c594008b46ac6afec49b29e9e81d68ee568369082a3c80b84d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bc5246f8b527c594008b46ac6afec49b29e9e81d68ee568369082a3c80b84d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc5246f8b527c594008b46ac6afec49b29e9e81d68ee568369082a3c80b84d5", kill_on_drop: false }`
[INFO] [stdout] 0bc5246f8b527c594008b46ac6afec49b29e9e81d68ee568369082a3c80b84d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c07fd799c6b7921b6d608808c6fdbd589419bd971fc1690410f834d8dfc6840a
[INFO] running `Command { std: "docker" "start" "-a" "c07fd799c6b7921b6d608808c6fdbd589419bd971fc1690410f834d8dfc6840a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking ratatui v0.23.0
[INFO] [stderr]     Checking headifier v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]    --> src/core.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender` and `handler` are never read
[INFO] [stdout]   --> src/ui/event.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct EventHandler {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 30 |     /// Event sender channel.
[INFO] [stdout] 31 |     sender: mpsc::Sender<Event>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     handler: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EventHandler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender` and `handler` are never read
[INFO] [stdout]   --> src/ui/event.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct EventHandler {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 30 |     /// Event sender channel.
[INFO] [stdout] 31 |     sender: mpsc::Sender<Event>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     handler: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EventHandler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.87s
[INFO] running `Command { std: "docker" "inspect" "c07fd799c6b7921b6d608808c6fdbd589419bd971fc1690410f834d8dfc6840a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07fd799c6b7921b6d608808c6fdbd589419bd971fc1690410f834d8dfc6840a", kill_on_drop: false }`
[INFO] [stdout] c07fd799c6b7921b6d608808c6fdbd589419bd971fc1690410f834d8dfc6840a
[INFO] checking headifier-0.1.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate headifier 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate headifier 0.1.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate headifier 0.1.2
[INFO] finished tweaking crates.io crate headifier 0.1.2
[INFO] tweaked toml for crates.io crate headifier 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate headifier 0.1.2 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cbec1a09cb69232029fcfb272f062b2c1c0898d532d1ac1240fa8dab50c61ad
[INFO] running `Command { std: "docker" "start" "-a" "1cbec1a09cb69232029fcfb272f062b2c1c0898d532d1ac1240fa8dab50c61ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cbec1a09cb69232029fcfb272f062b2c1c0898d532d1ac1240fa8dab50c61ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cbec1a09cb69232029fcfb272f062b2c1c0898d532d1ac1240fa8dab50c61ad", kill_on_drop: false }`
[INFO] [stdout] 1cbec1a09cb69232029fcfb272f062b2c1c0898d532d1ac1240fa8dab50c61ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff32a783deb202840ddbcc662d923852fbb7afbe58f57631a9c5d39f8b854120
[INFO] running `Command { std: "docker" "start" "-a" "ff32a783deb202840ddbcc662d923852fbb7afbe58f57631a9c5d39f8b854120", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking ratatui v0.23.0
[INFO] [stderr]     Checking headifier v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]    --> src/core.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     use std::path::Path;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender` and `handler` are never read
[INFO] [stdout]   --> src/ui/event.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct EventHandler {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 30 |     /// Event sender channel.
[INFO] [stdout] 31 |     sender: mpsc::Sender<Event>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     handler: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EventHandler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender` and `handler` are never read
[INFO] [stdout]   --> src/ui/event.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct EventHandler {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 30 |     /// Event sender channel.
[INFO] [stdout] 31 |     sender: mpsc::Sender<Event>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     handler: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EventHandler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 13.69s
[INFO] running `Command { std: "docker" "inspect" "ff32a783deb202840ddbcc662d923852fbb7afbe58f57631a9c5d39f8b854120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff32a783deb202840ddbcc662d923852fbb7afbe58f57631a9c5d39f8b854120", kill_on_drop: false }`
[INFO] [stdout] ff32a783deb202840ddbcc662d923852fbb7afbe58f57631a9c5d39f8b854120