[INFO] fetching crate enalang_optimizer 0.6.1...
[INFO] testing enalang_optimizer-0.6.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate enalang_optimizer 0.6.1 into /workspace/builds/worker-7-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate enalang_optimizer 0.6.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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 rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v3.9.2
[INFO] [stderr]   Downloaded enalang_ir v0.6.1
[INFO] [stderr]   Downloaded enalang_vm v0.6.1
[INFO] [stderr]   Downloaded radix_fmt v1.0.0
[INFO] [stderr]   Downloaded flexstr v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01179fd153b26d8865cb8d26cdd3785d2222285f4308d3178455ab233eab81ec
[INFO] running `Command { std: "docker" "start" "-a" "01179fd153b26d8865cb8d26cdd3785d2222285f4308d3178455ab233eab81ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01179fd153b26d8865cb8d26cdd3785d2222285f4308d3178455ab233eab81ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01179fd153b26d8865cb8d26cdd3785d2222285f4308d3178455ab233eab81ec", kill_on_drop: false }`
[INFO] [stdout] 01179fd153b26d8865cb8d26cdd3785d2222285f4308d3178455ab233eab81ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad8804e6034058c57d43c2eb9cbf5c7742972440f303322db691e515f1a05a02
[INFO] running `Command { std: "docker" "start" "-a" "ad8804e6034058c57d43c2eb9cbf5c7742972440f303322db691e515f1a05a02", kill_on_drop: false }`
[INFO] [stderr]    Compiling radix_fmt v1.0.0
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling ordered-float v3.9.2
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling flexstr v0.9.2
[INFO] [stderr]    Compiling enalang_ir v0.6.1
[INFO] [stderr]    Compiling enalang_vm v0.6.1
[INFO] [stderr]    Compiling enalang_optimizer v0.6.1 (/opt/rustwide/workdir)
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.58s
[INFO] running `Command { std: "docker" "inspect" "ad8804e6034058c57d43c2eb9cbf5c7742972440f303322db691e515f1a05a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8804e6034058c57d43c2eb9cbf5c7742972440f303322db691e515f1a05a02", kill_on_drop: false }`
[INFO] [stdout] ad8804e6034058c57d43c2eb9cbf5c7742972440f303322db691e515f1a05a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8539c44686865681b4c7b29a0abd96963cc22cfc228ef9f871a529982cc92876
[INFO] running `Command { std: "docker" "start" "-a" "8539c44686865681b4c7b29a0abd96963cc22cfc228ef9f871a529982cc92876", kill_on_drop: false }`
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling enalang_optimizer v0.6.1 (/opt/rustwide/workdir)
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "8539c44686865681b4c7b29a0abd96963cc22cfc228ef9f871a529982cc92876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8539c44686865681b4c7b29a0abd96963cc22cfc228ef9f871a529982cc92876", kill_on_drop: false }`
[INFO] [stdout] 8539c44686865681b4c7b29a0abd96963cc22cfc228ef9f871a529982cc92876
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 305c17edbb9c164ed27e9d8f0bfb150e0cadd8417929ab7699d96fe2bb35f17f
[INFO] running `Command { std: "docker" "start" "-a" "305c17edbb9c164ed27e9d8f0bfb150e0cadd8417929ab7699d96fe2bb35f17f", kill_on_drop: false }`
[INFO] [stderr] warning: field `ctx` is never read
[INFO] [stderr]   --> src/optimizations/unused_blocks.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct UnusedBlocksOptimization {
[INFO] [stderr]    |            ------------------------ field in this struct
[INFO] [stderr] 13 |     ctx: OptimizationContext,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `enalang_optimizer` (lib) generated 1 warning
[INFO] [stderr] warning: `enalang_optimizer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/enalang_optimizer-dc56ab18de9b4a74)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests enalang_optimizer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "305c17edbb9c164ed27e9d8f0bfb150e0cadd8417929ab7699d96fe2bb35f17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "305c17edbb9c164ed27e9d8f0bfb150e0cadd8417929ab7699d96fe2bb35f17f", kill_on_drop: false }`
[INFO] [stdout] 305c17edbb9c164ed27e9d8f0bfb150e0cadd8417929ab7699d96fe2bb35f17f