[INFO] fetching crate meru 0.3.0...
[INFO] testing meru-0.3.0 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate meru 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate meru 0.3.0
[INFO] finished tweaking crates.io crate meru 0.3.0
[INFO] tweaked toml for crates.io crate meru 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate meru 0.3.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate meru 0.3.0 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ec397b6b8cdafda71c8a616ee1b199fbbcd1ef706aa8ba4bdef3bbdda7b94d5
[INFO] running `Command { std: "docker" "start" "-a" "0ec397b6b8cdafda71c8a616ee1b199fbbcd1ef706aa8ba4bdef3bbdda7b94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec397b6b8cdafda71c8a616ee1b199fbbcd1ef706aa8ba4bdef3bbdda7b94d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec397b6b8cdafda71c8a616ee1b199fbbcd1ef706aa8ba4bdef3bbdda7b94d5", kill_on_drop: false }`
[INFO] [stdout] 0ec397b6b8cdafda71c8a616ee1b199fbbcd1ef706aa8ba4bdef3bbdda7b94d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b18f71a8eaac9270be1b4e4fdd3ff83dcd2356f6d15aeb21290a533d59597ed
[INFO] running `Command { std: "docker" "start" "-a" "1b18f71a8eaac9270be1b4e4fdd3ff83dcd2356f6d15aeb21290a533d59597ed", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bevy_sprite v0.8.1
[INFO] [stderr]    Compiling bevy_pbr v0.8.1
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/rewinding.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Thumbnail(usize);
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7m 22s
[INFO] running `Command { std: "docker" "inspect" "1b18f71a8eaac9270be1b4e4fdd3ff83dcd2356f6d15aeb21290a533d59597ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b18f71a8eaac9270be1b4e4fdd3ff83dcd2356f6d15aeb21290a533d59597ed", kill_on_drop: false }`
[INFO] [stdout] 1b18f71a8eaac9270be1b4e4fdd3ff83dcd2356f6d15aeb21290a533d59597ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b30642ba8e4ce5e683751aa8c7b254e9eaa2caf2a6b877b75f2dcedfdb0f7f8
[INFO] running `Command { std: "docker" "start" "-a" "3b30642ba8e4ce5e683751aa8c7b254e9eaa2caf2a6b877b75f2dcedfdb0f7f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling meru v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/rewinding.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Thumbnail(usize);
[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]   --> src/rewinding.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Thumbnail(usize);
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.46s
[INFO] running `Command { std: "docker" "inspect" "3b30642ba8e4ce5e683751aa8c7b254e9eaa2caf2a6b877b75f2dcedfdb0f7f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b30642ba8e4ce5e683751aa8c7b254e9eaa2caf2a6b877b75f2dcedfdb0f7f8", kill_on_drop: false }`
[INFO] [stdout] 3b30642ba8e4ce5e683751aa8c7b254e9eaa2caf2a6b877b75f2dcedfdb0f7f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1800b5e0eae873ba67cfcfb8c14509a4a1b937e09220d98c11144f6bebf6ad72
[INFO] running `Command { std: "docker" "start" "-a" "1800b5e0eae873ba67cfcfb8c14509a4a1b937e09220d98c11144f6bebf6ad72", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/rewinding.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 | struct Thumbnail(usize);
[INFO] [stderr]    |        --------- ^^^^^
[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: `meru` (lib) generated 1 warning
[INFO] [stderr] warning: `meru` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/meru-9e49af606d69a3ef)
[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]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/meru-fc9d19f20c26a5f0)
[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 meru
[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" "1800b5e0eae873ba67cfcfb8c14509a4a1b937e09220d98c11144f6bebf6ad72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1800b5e0eae873ba67cfcfb8c14509a4a1b937e09220d98c11144f6bebf6ad72", kill_on_drop: false }`
[INFO] [stdout] 1800b5e0eae873ba67cfcfb8c14509a4a1b937e09220d98c11144f6bebf6ad72