[INFO] fetching crate precord-core 0.7.15-20250911...
[INFO] testing precord-core-0.7.15-20250911 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate precord-core 0.7.15-20250911 into /workspace/builds/worker-5-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate precord-core 0.7.15-20250911 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d20ad27667d9e75df418e12b79e06161186ee7584a88cd5c33986ca425a6973
[INFO] running `Command { std: "docker" "start" "-a" "6d20ad27667d9e75df418e12b79e06161186ee7584a88cd5c33986ca425a6973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d20ad27667d9e75df418e12b79e06161186ee7584a88cd5c33986ca425a6973", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d20ad27667d9e75df418e12b79e06161186ee7584a88cd5c33986ca425a6973", kill_on_drop: false }`
[INFO] [stdout] 6d20ad27667d9e75df418e12b79e06161186ee7584a88cd5c33986ca425a6973
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d174442a97b5f0ae8f9b033abb683e6a65cf3d248efb088526eaed1cf9cb84d4
[INFO] running `Command { std: "docker" "start" "-a" "d174442a97b5f0ae8f9b033abb683e6a65cf3d248efb088526eaed1cf9cb84d4", 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 either v1.8.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling serde v1.0.204
[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 12.49s
[INFO] running `Command { std: "docker" "inspect" "d174442a97b5f0ae8f9b033abb683e6a65cf3d248efb088526eaed1cf9cb84d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d174442a97b5f0ae8f9b033abb683e6a65cf3d248efb088526eaed1cf9cb84d4", kill_on_drop: false }`
[INFO] [stdout] d174442a97b5f0ae8f9b033abb683e6a65cf3d248efb088526eaed1cf9cb84d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0901c49e0ed6f46af8f6e4fa15e8f382d9e672cab3fd7ea992ea4a947e6213a9
[INFO] running `Command { std: "docker" "start" "-a" "0901c49e0ed6f46af8f6e4fa15e8f382d9e672cab3fd7ea992ea4a947e6213a9", kill_on_drop: false }`
[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]    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 `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "0901c49e0ed6f46af8f6e4fa15e8f382d9e672cab3fd7ea992ea4a947e6213a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0901c49e0ed6f46af8f6e4fa15e8f382d9e672cab3fd7ea992ea4a947e6213a9", kill_on_drop: false }`
[INFO] [stdout] 0901c49e0ed6f46af8f6e4fa15e8f382d9e672cab3fd7ea992ea4a947e6213a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9152054bdb6a53570c1180dd6e79203c7c3420664923ba27790712e3d04b14a
[INFO] running `Command { std: "docker" "start" "-a" "f9152054bdb6a53570c1180dd6e79203c7c3420664923ba27790712e3d04b14a", 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] [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 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] running `Command { std: "docker" "inspect" "f9152054bdb6a53570c1180dd6e79203c7c3420664923ba27790712e3d04b14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9152054bdb6a53570c1180dd6e79203c7c3420664923ba27790712e3d04b14a", kill_on_drop: false }`
[INFO] [stdout] f9152054bdb6a53570c1180dd6e79203c7c3420664923ba27790712e3d04b14a