[INFO] cloning repository https://github.com/xiaopengli89/precord [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaopengli89/precord" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaopengli89%2Fprecord", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaopengli89%2Fprecord'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 837900e24dde6d4566527e2156c61fa8ea2c7589 [INFO] checking xiaopengli89/precord against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaopengli89%2Fprecord" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/xiaopengli89/precord [INFO] finished tweaking git repo https://github.com/xiaopengli89/precord [INFO] tweaked toml for git repo https://github.com/xiaopengli89/precord written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/xiaopengli89/precord on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/xiaopengli89/precord 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c91375548733ab79c6c10eecccdc282327a8864fc9909ac0d11756d1d499cd0 [INFO] running `Command { std: "docker" "start" "-a" "0c91375548733ab79c6c10eecccdc282327a8864fc9909ac0d11756d1d499cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c91375548733ab79c6c10eecccdc282327a8864fc9909ac0d11756d1d499cd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c91375548733ab79c6c10eecccdc282327a8864fc9909ac0d11756d1d499cd0", kill_on_drop: false }` [INFO] [stdout] 0c91375548733ab79c6c10eecccdc282327a8864fc9909ac0d11756d1d499cd0 [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=forbid -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 686f4385b219f49d4725808427a2837b489aa863fb1723af5e637f65f7aeefc8 [INFO] running `Command { std: "docker" "start" "-a" "686f4385b219f49d4725808427a2837b489aa863fb1723af5e637f65f7aeefc8", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Compiling crossbeam-epoch v0.9.13 [INFO] [stderr] Compiling freetype-sys v0.20.1 [INFO] [stderr] Compiling yeslogic-fontconfig-sys v5.0.0 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking num-integer v0.1.45 [INFO] [stderr] Checking flate2 v1.0.25 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Checking dlib v0.5.0 [INFO] [stderr] Checking anstyle-parse v0.2.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking plotters-backend v0.3.6 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Compiling font-kit v0.13.2 [INFO] [stderr] Checking bytemuck v1.12.3 [INFO] [stderr] Checking anstyle-query v1.1.0 [INFO] [stderr] Checking colorchoice v1.0.1 [INFO] [stderr] Checking is_terminal_polyfill v1.70.0 [INFO] [stderr] Checking jpeg-decoder v0.3.0 [INFO] [stderr] Checking anstyle v1.0.7 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking num-rational v0.4.1 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking parking_lot_core v0.9.6 [INFO] [stderr] Checking png v0.17.7 [INFO] [stderr] Checking gif v0.12.0 [INFO] [stderr] Checking mio v1.0.1 [INFO] [stderr] Checking anstream v0.6.14 [INFO] [stderr] Checking float-ord v0.3.2 [INFO] [stderr] Checking clap_lex v0.7.1 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling syn v2.0.91 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking regex-automata v0.4.7 [INFO] [stderr] Checking plotters-svg v0.3.6 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking ttf-parser v0.20.0 [INFO] [stderr] Compiling cstr v0.2.12 [INFO] [stderr] Checking clap_builder v4.5.9 [INFO] [stderr] Checking rayon-core v1.12.1 [INFO] [stderr] Compiling pathfinder_simd v0.5.3 [INFO] [stderr] Checking signal-hook-mio v0.2.4 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking crossterm v0.28.1 [INFO] [stderr] Checking image v0.24.5 [INFO] [stderr] Checking pathfinder_geometry v0.5.1 [INFO] [stderr] Checking regex v1.10.5 [INFO] [stderr] Checking plotters-bitmap v0.3.6 [INFO] [stderr] Checking sysinfo v0.30.13 [INFO] [stderr] Compiling darling_core v0.20.10 [INFO] [stderr] Compiling serde_derive v1.0.204 [INFO] [stderr] Compiling thiserror-impl v1.0.61 [INFO] [stderr] Compiling clap_derive v4.5.8 [INFO] [stderr] Checking thiserror v1.0.61 [INFO] [stderr] Compiling darling_macro v0.20.10 [INFO] [stderr] Checking clap v4.5.9 [INFO] [stderr] Compiling darling v0.20.10 [INFO] [stderr] Compiling serde_with_macros v3.8.3 [INFO] [stderr] Checking chrono v0.4.38 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking precord-core v0.7.15-20250911 (/opt/rustwide/workdir/precord-core) [INFO] [stderr] Checking serde_with v3.8.3 [INFO] [stdout] warning: unused variable: `pids` [INFO] [stdout] --> precord-core/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: unused variable: `pids` [INFO] [stdout] --> precord-core/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] --> precord-core/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: field `features` is never read [INFO] [stdout] --> precord-core/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] Checking plotters v0.3.6 [INFO] [stderr] Checking precord v0.7.15-20250911 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils.rs:170:33 [INFO] [stdout] | [INFO] [stdout] 170 | let Ok(p) = p.parse::(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils.rs:178:33 [INFO] [stdout] | [INFO] [stdout] 178 | let Ok(p) = p.parse::(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils.rs:170:33 [INFO] [stdout] | [INFO] [stdout] 170 | let Ok(p) = p.parse::(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/utils.rs:178:33 [INFO] [stdout] | [INFO] [stdout] 178 | let Ok(p) = p.parse::(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `precord` (bin "precord" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `precord` (bin "precord") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "686f4385b219f49d4725808427a2837b489aa863fb1723af5e637f65f7aeefc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "686f4385b219f49d4725808427a2837b489aa863fb1723af5e637f65f7aeefc8", kill_on_drop: false }` [INFO] [stdout] 686f4385b219f49d4725808427a2837b489aa863fb1723af5e637f65f7aeefc8