[INFO] fetching crate xpr 0.1.0...
[INFO] testing xpr-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate xpr 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate xpr 0.1.0
[INFO] finished tweaking crates.io crate xpr 0.1.0
[INFO] tweaked toml for crates.io crate xpr 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xpr 0.1.0 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] crate crates.io crate xpr 0.1.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 66afd6e577cb37221d6d010343d56c78a49a7e908a16d2c607780ed2905972b0
[INFO] running `Command { std: "docker" "start" "-a" "66afd6e577cb37221d6d010343d56c78a49a7e908a16d2c607780ed2905972b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66afd6e577cb37221d6d010343d56c78a49a7e908a16d2c607780ed2905972b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66afd6e577cb37221d6d010343d56c78a49a7e908a16d2c607780ed2905972b0", kill_on_drop: false }`
[INFO] [stdout] 66afd6e577cb37221d6d010343d56c78a49a7e908a16d2c607780ed2905972b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 39ced7bfb020335e9add2789acde58ef080811acffa8e13b61aa276ebadb01dc
[INFO] running `Command { std: "docker" "start" "-a" "39ced7bfb020335e9add2789acde58ef080811acffa8e13b61aa276ebadb01dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling xpr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "39ced7bfb020335e9add2789acde58ef080811acffa8e13b61aa276ebadb01dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ced7bfb020335e9add2789acde58ef080811acffa8e13b61aa276ebadb01dc", kill_on_drop: false }`
[INFO] [stdout] 39ced7bfb020335e9add2789acde58ef080811acffa8e13b61aa276ebadb01dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6094fe96d4194e60b53835971d0b2b72f6327ee5bb8ebadc1dad6c5eb4730d6a
[INFO] running `Command { std: "docker" "start" "-a" "6094fe96d4194e60b53835971d0b2b72f6327ee5bb8ebadc1dad6c5eb4730d6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling xpr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FortytwoifyI32` is never constructed
[INFO] [stdout]   --> src/foldable.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     struct FortytwoifyI32;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Num` is never constructed
[INFO] [stdout]    --> src/lib.rs:452:12
[INFO] [stdout]     |
[INFO] [stdout] 452 |     struct Num(i32);
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "6094fe96d4194e60b53835971d0b2b72f6327ee5bb8ebadc1dad6c5eb4730d6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6094fe96d4194e60b53835971d0b2b72f6327ee5bb8ebadc1dad6c5eb4730d6a", kill_on_drop: false }`
[INFO] [stdout] 6094fe96d4194e60b53835971d0b2b72f6327ee5bb8ebadc1dad6c5eb4730d6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c87612989cbb1fd4993cf266331cdb41ae98da666f6d87802e66c6cef5bf9e0e
[INFO] running `Command { std: "docker" "start" "-a" "c87612989cbb1fd4993cf266331cdb41ae98da666f6d87802e66c6cef5bf9e0e", kill_on_drop: false }`
[INFO] [stderr] warning: struct `FortytwoifyI32` is never constructed
[INFO] [stderr]   --> src/foldable.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     struct FortytwoifyI32;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Num` is never constructed
[INFO] [stderr]    --> src/lib.rs:452:12
[INFO] [stderr]     |
[INFO] [stderr] 452 |     struct Num(i32);
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `xpr` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xpr-53aec29ccf54a6ad)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_eval ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xpr
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Xpr (line 163) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 86) ... ok
[INFO] [stdout] test src/lib.rs - (line 32) ... ok
[INFO] [stdout] test src/lib.rs - Fold (line 259) ... ok
[INFO] [stdout] test src/lib.rs - Fold (line 291) ... ok
[INFO] [stdout] test src/lib.rs - Fold (line 337) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c87612989cbb1fd4993cf266331cdb41ae98da666f6d87802e66c6cef5bf9e0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c87612989cbb1fd4993cf266331cdb41ae98da666f6d87802e66c6cef5bf9e0e", kill_on_drop: false }`
[INFO] [stdout] c87612989cbb1fd4993cf266331cdb41ae98da666f6d87802e66c6cef5bf9e0e