[INFO] fetching crate enalang_optimizer 0.6.1...
[INFO] checking enalang_optimizer-0.6.1 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate enalang_optimizer 0.6.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate enalang_optimizer 0.6.1
[INFO] finished tweaking crates.io crate enalang_optimizer 0.6.1
[INFO] tweaked toml for crates.io crate enalang_optimizer 0.6.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate enalang_optimizer 0.6.1 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding flexstr v0.9.2 (available: v0.11.7)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a3462de708c699b1b2e00a9bf35d9ca7c38564ae2a155f837327e204760f35c
[INFO] running `Command { std: "docker" "start" "-a" "9a3462de708c699b1b2e00a9bf35d9ca7c38564ae2a155f837327e204760f35c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a3462de708c699b1b2e00a9bf35d9ca7c38564ae2a155f837327e204760f35c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3462de708c699b1b2e00a9bf35d9ca7c38564ae2a155f837327e204760f35c", kill_on_drop: false }`
[INFO] [stdout] 9a3462de708c699b1b2e00a9bf35d9ca7c38564ae2a155f837327e204760f35c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b81209bec5f6ba6fe6048d4e213348233d3cfa911d6a2e768ce7d7260e87e2c
[INFO] running `Command { std: "docker" "start" "-a" "6b81209bec5f6ba6fe6048d4e213348233d3cfa911d6a2e768ce7d7260e87e2c", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking radix_fmt v1.0.0
[INFO] [stderr]     Checking ordered-float v3.9.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking flexstr v0.9.2
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking enalang_ir v0.6.1
[INFO] [stderr]     Checking enalang_vm v0.6.1
[INFO] [stderr]     Checking enalang_optimizer v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `UnusedBlocksOptimization` is never constructed
[INFO] [stdout]   --> src/optimizations/unused_blocks.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UnusedBlocksOptimization {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ctx` is never read
[INFO] [stdout]   --> src/optimizations/unused_blocks.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UnusedBlocksOptimization {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] 13 |     ctx: OptimizationContext,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enalang_optimizer` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `UnusedBlocksOptimization` is never constructed
[INFO] [stdout]   --> src/optimizations/unused_blocks.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UnusedBlocksOptimization {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ctx` is never read
[INFO] [stdout]   --> src/optimizations/unused_blocks.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct UnusedBlocksOptimization {
[INFO] [stdout]    |            ------------------------ field in this struct
[INFO] [stdout] 13 |     ctx: OptimizationContext,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enalang_optimizer` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6b81209bec5f6ba6fe6048d4e213348233d3cfa911d6a2e768ce7d7260e87e2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b81209bec5f6ba6fe6048d4e213348233d3cfa911d6a2e768ce7d7260e87e2c", kill_on_drop: false }`
[INFO] [stdout] 6b81209bec5f6ba6fe6048d4e213348233d3cfa911d6a2e768ce7d7260e87e2c
