[INFO] fetching crate eraserhead 1.0.0...
[INFO] testing eraserhead-1.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate eraserhead 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate eraserhead 1.0.0
[INFO] finished tweaking crates.io crate eraserhead 1.0.0
[INFO] tweaked toml for crates.io crate eraserhead 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate eraserhead 1.0.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1903ae9dde1b658047afaf317579f055eeb051d818c2531c8bce61582abc0f94
[INFO] running `Command { std: "docker" "start" "-a" "1903ae9dde1b658047afaf317579f055eeb051d818c2531c8bce61582abc0f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1903ae9dde1b658047afaf317579f055eeb051d818c2531c8bce61582abc0f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1903ae9dde1b658047afaf317579f055eeb051d818c2531c8bce61582abc0f94", kill_on_drop: false }`
[INFO] [stdout] 1903ae9dde1b658047afaf317579f055eeb051d818c2531c8bce61582abc0f94
[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=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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0df6163f6c783f7f5c4900407743f89585ab8a44b97ad7b73c489bca00bcaed
[INFO] running `Command { std: "docker" "start" "-a" "f0df6163f6c783f7f5c4900407743f89585ab8a44b97ad7b73c489bca00bcaed", kill_on_drop: false }`
[INFO] [stderr]    Compiling eraserhead-derive v1.0.0
[INFO] [stderr]    Compiling eraserhead v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "f0df6163f6c783f7f5c4900407743f89585ab8a44b97ad7b73c489bca00bcaed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0df6163f6c783f7f5c4900407743f89585ab8a44b97ad7b73c489bca00bcaed", kill_on_drop: false }`
[INFO] [stdout] f0df6163f6c783f7f5c4900407743f89585ab8a44b97ad7b73c489bca00bcaed
[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=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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66a1b9b4aebcbdb84d46a9c9f412a3508e84f20e8aa6642f5ce407372606b443
[INFO] running `Command { std: "docker" "start" "-a" "66a1b9b4aebcbdb84d46a9c9f412a3508e84f20e8aa6642f5ce407372606b443", kill_on_drop: false }`
[INFO] [stderr]    Compiling eraserhead v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/test.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Simple(i32);
[INFO] [stdout]   |            ------ ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/test.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct SingleRef<'a>(&'a i32);
[INFO] [stdout]   |            ---------     ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> tests/test.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct MultipleRef<'a, 'b>(&'a i32, &'b [f64]);
[INFO] [stdout]    |            -----------         ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "66a1b9b4aebcbdb84d46a9c9f412a3508e84f20e8aa6642f5ce407372606b443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66a1b9b4aebcbdb84d46a9c9f412a3508e84f20e8aa6642f5ce407372606b443", kill_on_drop: false }`
[INFO] [stdout] 66a1b9b4aebcbdb84d46a9c9f412a3508e84f20e8aa6642f5ce407372606b443
[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=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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0843edf219dc4725c84e105468586a1fa20b60dad98055264e3264dd6b14c5cf
[INFO] running `Command { std: "docker" "start" "-a" "0843edf219dc4725c84e105468586a1fa20b60dad98055264e3264dd6b14c5cf", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stdout] 
[INFO] [stderr]  --> tests/test.rs:4:19
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 4 | pub struct Simple(i32);
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |            ------ ^^^
[INFO] [stdout] 
[INFO] [stderr]   |            |
[INFO] [stderr]   |            field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> tests/test.rs:7:26
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct SingleRef<'a>(&'a i32);
[INFO] [stderr]   |            ---------     ^^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> tests/test.rs:10:32
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct MultipleRef<'a, 'b>(&'a i32, &'b [f64]);
[INFO] [stderr]    |            -----------         ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            fields in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing these fields
[INFO] [stderr] 
[INFO] [stderr] warning: `eraserhead` (test "test") generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/eraserhead-3f262c9935be5daa)
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-d6cfbe6f825b3ddf)
[INFO] [stderr]    Doc-tests eraserhead
[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] [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" "0843edf219dc4725c84e105468586a1fa20b60dad98055264e3264dd6b14c5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0843edf219dc4725c84e105468586a1fa20b60dad98055264e3264dd6b14c5cf", kill_on_drop: false }`
[INFO] [stdout] 0843edf219dc4725c84e105468586a1fa20b60dad98055264e3264dd6b14c5cf