[INFO] fetching crate precord-core 0.7.15-20250911...
[INFO] testing precord-core-0.7.15-20250911 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate precord-core 0.7.15-20250911 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate precord-core 0.7.15-20250911
[INFO] finished tweaking crates.io crate precord-core 0.7.15-20250911
[INFO] tweaked toml for crates.io crate precord-core 0.7.15-20250911 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate precord-core 0.7.15-20250911 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate precord-core 0.7.15-20250911 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 015b7b7e0744888ec8a16b0f0a8c472255a68d7f417279cbe460ca2870b16f1a
[INFO] running `Command { std: "docker" "start" "-a" "015b7b7e0744888ec8a16b0f0a8c472255a68d7f417279cbe460ca2870b16f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "015b7b7e0744888ec8a16b0f0a8c472255a68d7f417279cbe460ca2870b16f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015b7b7e0744888ec8a16b0f0a8c472255a68d7f417279cbe460ca2870b16f1a", kill_on_drop: false }`
[INFO] [stdout] 015b7b7e0744888ec8a16b0f0a8c472255a68d7f417279cbe460ca2870b16f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c0bc03426f6b7594522470ca2f9c9700c5dcdcd3f2d52caa597b27dd774c305
[INFO] running `Command { std: "docker" "start" "-a" "7c0bc03426f6b7594522470ca2f9c9700c5dcdcd3f2d52caa597b27dd774c305", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling syn v2.0.91
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling sysinfo v0.30.13
[INFO] [stderr]    Compiling precord-core v0.7.15-20250911 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pids`
[INFO] [stdout]   --> src/system.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         pids: T,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pids`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `features` is never read
[INFO] [stdout]   --> src/system.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct System {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     features: Features,
[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 10.77s
[INFO] running `Command { std: "docker" "inspect" "7c0bc03426f6b7594522470ca2f9c9700c5dcdcd3f2d52caa597b27dd774c305", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0bc03426f6b7594522470ca2f9c9700c5dcdcd3f2d52caa597b27dd774c305", kill_on_drop: false }`
[INFO] [stdout] 7c0bc03426f6b7594522470ca2f9c9700c5dcdcd3f2d52caa597b27dd774c305
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1986c647aa43f081184610e9b6e844049d5cac2624d1143ad26a40338c4f4bf8
[INFO] running `Command { std: "docker" "start" "-a" "1986c647aa43f081184610e9b6e844049d5cac2624d1143ad26a40338c4f4bf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling precord-core v0.7.15-20250911 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pids`
[INFO] [stdout]   --> src/system.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         pids: T,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pids`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `features` is never read
[INFO] [stdout]   --> src/system.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct System {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     features: Features,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pids`
[INFO] [stdout]   --> src/system.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         pids: T,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pids`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `features` is never read
[INFO] [stdout]   --> src/system.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct System {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     features: Features,
[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 0.45s
[INFO] running `Command { std: "docker" "inspect" "1986c647aa43f081184610e9b6e844049d5cac2624d1143ad26a40338c4f4bf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1986c647aa43f081184610e9b6e844049d5cac2624d1143ad26a40338c4f4bf8", kill_on_drop: false }`
[INFO] [stdout] 1986c647aa43f081184610e9b6e844049d5cac2624d1143ad26a40338c4f4bf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c86a84723bf9355ad0a905920a8a7927c80a2f8f7282e0809f159ae6e85cf961
[INFO] running `Command { std: "docker" "start" "-a" "c86a84723bf9355ad0a905920a8a7927c80a2f8f7282e0809f159ae6e85cf961", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `pids`
[INFO] [stderr]   --> src/system.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         pids: T,
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pids`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `features` is never read
[INFO] [stderr]   --> src/system.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct System {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 14 |     features: Features,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `precord-core` (lib) generated 2 warnings (run `cargo fix --lib -p precord-core` to apply 1 suggestion)
[INFO] [stderr] warning: `precord-core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/precord_core-c476d6939134bb9b)
[INFO] [stderr]    Doc-tests precord_core
[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" "c86a84723bf9355ad0a905920a8a7927c80a2f8f7282e0809f159ae6e85cf961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c86a84723bf9355ad0a905920a8a7927c80a2f8f7282e0809f159ae6e85cf961", kill_on_drop: false }`
[INFO] [stdout] c86a84723bf9355ad0a905920a8a7927c80a2f8f7282e0809f159ae6e85cf961