[INFO] fetching crate derive_more_preview-impl 0.1.0...
[INFO] testing derive_more_preview-impl-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate derive_more_preview-impl 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate derive_more_preview-impl 0.1.0
[INFO] finished tweaking crates.io crate derive_more_preview-impl 0.1.0
[INFO] tweaked toml for crates.io crate derive_more_preview-impl 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate derive_more_preview-impl 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] 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]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding convert_case v0.6.0 (available: v0.8.0)
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.14.0)
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9680912585e6594370601a4b70ce4410bbb7c1988149b3998df2156b4a2fab30
[INFO] running `Command { std: "docker" "start" "-a" "9680912585e6594370601a4b70ce4410bbb7c1988149b3998df2156b4a2fab30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9680912585e6594370601a4b70ce4410bbb7c1988149b3998df2156b4a2fab30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9680912585e6594370601a4b70ce4410bbb7c1988149b3998df2156b4a2fab30", kill_on_drop: false }`
[INFO] [stdout] 9680912585e6594370601a4b70ce4410bbb7c1988149b3998df2156b4a2fab30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 76d660c070bd2f15e9286ef18c8bdf486e880c7f86994e06202d15660b3f390e
[INFO] running `Command { std: "docker" "start" "-a" "76d660c070bd2f15e9286ef18c8bdf486e880c7f86994e06202d15660b3f390e", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive_more_preview-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Output` is never used
[INFO] [stdout]   --> src/lib.rs:75:7
[INFO] [stdout]    |
[INFO] [stdout] 75 | trait Output {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[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 0.60s
[INFO] running `Command { std: "docker" "inspect" "76d660c070bd2f15e9286ef18c8bdf486e880c7f86994e06202d15660b3f390e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d660c070bd2f15e9286ef18c8bdf486e880c7f86994e06202d15660b3f390e", kill_on_drop: false }`
[INFO] [stdout] 76d660c070bd2f15e9286ef18c8bdf486e880c7f86994e06202d15660b3f390e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2a96dd03cf8836ccb86f332f349495bdd619d44496bd6720ac2d7df22a680027
[INFO] running `Command { std: "docker" "start" "-a" "2a96dd03cf8836ccb86f332f349495bdd619d44496bd6720ac2d7df22a680027", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling derive_more_preview-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stdout] warning: trait `Output` is never used
[INFO] [stdout]   --> src/lib.rs:75:7
[INFO] [stdout]    |
[INFO] [stdout] 75 | trait Output {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Output` is never used
[INFO] [stdout]   --> src/lib.rs:75:7
[INFO] [stdout]    |
[INFO] [stdout] 75 | trait Output {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[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 2.30s
[INFO] running `Command { std: "docker" "inspect" "2a96dd03cf8836ccb86f332f349495bdd619d44496bd6720ac2d7df22a680027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a96dd03cf8836ccb86f332f349495bdd619d44496bd6720ac2d7df22a680027", kill_on_drop: false }`
[INFO] [stdout] 2a96dd03cf8836ccb86f332f349495bdd619d44496bd6720ac2d7df22a680027
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 01e92564978c01c20e2540f2d794d57ae582066d58363d67640ce3177e5de8ce
[INFO] running `Command { std: "docker" "start" "-a" "01e92564978c01c20e2540f2d794d57ae582066d58363d67640ce3177e5de8ce", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Output` is never used
[INFO] [stderr]   --> src/lib.rs:75:7
[INFO] [stderr]    |
[INFO] [stderr] 75 | trait Output {
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `derive_more_preview-impl` (lib) generated 1 warning
[INFO] [stderr] warning: `derive_more_preview-impl` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/derive_more_preview_impl-d088de42741d44ef)
[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 derive_more_preview_impl
[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" "01e92564978c01c20e2540f2d794d57ae582066d58363d67640ce3177e5de8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e92564978c01c20e2540f2d794d57ae582066d58363d67640ce3177e5de8ce", kill_on_drop: false }`
[INFO] [stdout] 01e92564978c01c20e2540f2d794d57ae582066d58363d67640ce3177e5de8ce