[INFO] fetching crate mcpz 0.3.1...
[INFO] checking mcpz-0.3.1 against master#61cc47e367d7be91e13bcd01e4e96e0e233d4f6d for 2025-12-16-next-solver-global
[INFO] extracting crate mcpz 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mcpz 0.3.1
[INFO] finished tweaking crates.io crate mcpz 0.3.1
[INFO] tweaked toml for crates.io crate mcpz 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcpz 0.3.1 on toolchain 61cc47e367d7be91e13bcd01e4e96e0e233d4f6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mcpz 0.3.1 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" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded axum-server v0.7.3
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[INFO] [stderr]   Downloaded fs-err v3.2.0
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[INFO] [stdout] 4d42d1cdce068495bcda0e6f52c7272a34469f5e203ef4e3bd935185095cdc3a
[INFO] running `Command { std: "docker" "start" "-a" "4d42d1cdce068495bcda0e6f52c7272a34469f5e203ef4e3bd935185095cdc3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d42d1cdce068495bcda0e6f52c7272a34469f5e203ef4e3bd935185095cdc3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d42d1cdce068495bcda0e6f52c7272a34469f5e203ef4e3bd935185095cdc3a", kill_on_drop: false }`
[INFO] [stdout] 4d42d1cdce068495bcda0e6f52c7272a34469f5e203ef4e3bd935185095cdc3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+61cc47e367d7be91e13bcd01e4e96e0e233d4f6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a96f68597e585375200f7a2f94b231541e1a779d82352571eebcb0f209c63ab0
[INFO] running `Command { std: "docker" "start" "-a" "a96f68597e585375200f7a2f94b231541e1a779d82352571eebcb0f209c63ab0", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `SseEvent` is never constructed
[INFO] [stdout]   --> src/http/handlers.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct SseEvent {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `created_at` are never read
[INFO] [stdout]   --> src/http/session.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Session {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub created_at: Instant,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Session` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotInitialized` is never constructed
[INFO] [stdout]   --> src/http/session.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum SessionError {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NotInitialized,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SessionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_initialized` and `session_count` are never used
[INFO] [stdout]    --> src/http/session.rs:97:18
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl SessionManager {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  97 |     pub async fn is_initialized(&self, id: &str) -> Result<bool, SessionError> {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub async fn session_count(&self) -> usize {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SseEvent` is never constructed
[INFO] [stdout]   --> src/http/handlers.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct SseEvent {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `created_at` are never read
[INFO] [stdout]   --> src/http/session.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Session {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     pub id: String,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub created_at: Instant,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Session` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotInitialized` is never constructed
[INFO] [stdout]   --> src/http/session.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum SessionError {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NotInitialized,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SessionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "a96f68597e585375200f7a2f94b231541e1a779d82352571eebcb0f209c63ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a96f68597e585375200f7a2f94b231541e1a779d82352571eebcb0f209c63ab0", kill_on_drop: false }`
[INFO] [stdout] a96f68597e585375200f7a2f94b231541e1a779d82352571eebcb0f209c63ab0
