[INFO] cloning repository https://github.com/phughk/debug-metrics [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phughk/debug-metrics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphughk%2Fdebug-metrics", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphughk%2Fdebug-metrics'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e02347557a7887d0875382ec2d28e458325c397 [INFO] checking phughk/debug-metrics against master#4b596bbd847672da87763b76171687d3544863c2 for pr-144544 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphughk%2Fdebug-metrics" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/phughk/debug-metrics [INFO] finished tweaking git repo https://github.com/phughk/debug-metrics [INFO] tweaked toml for git repo https://github.com/phughk/debug-metrics written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/phughk/debug-metrics on toolchain 4b596bbd847672da87763b76171687d3544863c2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/phughk/debug-metrics 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" "+4b596bbd847672da87763b76171687d3544863c2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] da14dfe5a61bf6a6792b88e40af0cd854acec0b217817d81aa3e9a8b598c87ba [INFO] running `Command { std: "docker" "start" "-a" "da14dfe5a61bf6a6792b88e40af0cd854acec0b217817d81aa3e9a8b598c87ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da14dfe5a61bf6a6792b88e40af0cd854acec0b217817d81aa3e9a8b598c87ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da14dfe5a61bf6a6792b88e40af0cd854acec0b217817d81aa3e9a8b598c87ba", kill_on_drop: false }` [INFO] [stdout] da14dfe5a61bf6a6792b88e40af0cd854acec0b217817d81aa3e9a8b598c87ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4b596bbd847672da87763b76171687d3544863c2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a471c6061889a08e9e1b038b0707552a38dc155c6eb5dff52a5ad4a711e47781 [INFO] running `Command { std: "docker" "start" "-a" "a471c6061889a08e9e1b038b0707552a38dc155c6eb5dff52a5ad4a711e47781", kill_on_drop: false }` [INFO] [stderr] Checking memchr v2.7.5 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Compiling indoc v2.0.6 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Checking debug-metrics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `log::debug` [INFO] [stdout] --> src/test.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use log::debug; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `metric` [INFO] [stdout] --> src/debug_metrics.rs:186:29 [INFO] [stdout] | [INFO] [stdout] 186 | ... metric, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `metric: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:187:29 [INFO] [stdout] | [INFO] [stdout] 187 | ... count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:188:29 [INFO] [stdout] | [INFO] [stdout] 188 | ... dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `label` [INFO] [stdout] --> src/debug_metrics.rs:194:29 [INFO] [stdout] | [INFO] [stdout] 194 | ... label, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `label: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:195:29 [INFO] [stdout] | [INFO] [stdout] 195 | ... value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/debug_metrics.rs:331:81 [INFO] [stdout] | [INFO] [stdout] 331 | fn set, Iter: LabelIter>(&mut self, key: Key, value: u64, mut labels: Iter) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:385:25 [INFO] [stdout] | [INFO] [stdout] 385 | count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:386:25 [INFO] [stdout] | [INFO] [stdout] 386 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:387:25 [INFO] [stdout] | [INFO] [stdout] 387 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:391:25 [INFO] [stdout] | [INFO] [stdout] 391 | value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:392:25 [INFO] [stdout] | [INFO] [stdout] 392 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:393:25 [INFO] [stdout] | [INFO] [stdout] 393 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:398:25 [INFO] [stdout] | [INFO] [stdout] 398 | count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:399:25 [INFO] [stdout] | [INFO] [stdout] 399 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:400:25 [INFO] [stdout] | [INFO] [stdout] 400 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:405:25 [INFO] [stdout] | [INFO] [stdout] 405 | value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:406:25 [INFO] [stdout] | [INFO] [stdout] 406 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:407:25 [INFO] [stdout] | [INFO] [stdout] 407 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/debug_metrics.rs:123:31 [INFO] [stdout] | [INFO] [stdout] 123 | fn with_drop_hook(&mut self, call_fn: CallFn) -> DropHook [INFO] [stdout] | ^^^^^^^^^ ---------------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 123 | fn with_drop_hook(&mut self, call_fn: CallFn) -> DropHook<'_, Self, CallFn> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `metric` [INFO] [stdout] --> src/debug_metrics.rs:186:29 [INFO] [stdout] | [INFO] [stdout] 186 | ... metric, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `metric: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:187:29 [INFO] [stdout] | [INFO] [stdout] 187 | ... count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:188:29 [INFO] [stdout] | [INFO] [stdout] 188 | ... dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `label` [INFO] [stdout] --> src/debug_metrics.rs:194:29 [INFO] [stdout] | [INFO] [stdout] 194 | ... label, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `label: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:195:29 [INFO] [stdout] | [INFO] [stdout] 195 | ... value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/debug_metrics.rs:331:81 [INFO] [stdout] | [INFO] [stdout] 331 | fn set, Iter: LabelIter>(&mut self, key: Key, value: u64, mut labels: Iter) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:385:25 [INFO] [stdout] | [INFO] [stdout] 385 | count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:386:25 [INFO] [stdout] | [INFO] [stdout] 386 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:387:25 [INFO] [stdout] | [INFO] [stdout] 387 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:391:25 [INFO] [stdout] | [INFO] [stdout] 391 | value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:392:25 [INFO] [stdout] | [INFO] [stdout] 392 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:393:25 [INFO] [stdout] | [INFO] [stdout] 393 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `count` [INFO] [stdout] --> src/debug_metrics.rs:398:25 [INFO] [stdout] | [INFO] [stdout] 398 | count, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `count: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:399:25 [INFO] [stdout] | [INFO] [stdout] 399 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:400:25 [INFO] [stdout] | [INFO] [stdout] 400 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/debug_metrics.rs:405:25 [INFO] [stdout] | [INFO] [stdout] 405 | value, [INFO] [stdout] | ^^^^^ help: try ignoring the field: `value: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dependencies` [INFO] [stdout] --> src/debug_metrics.rs:406:25 [INFO] [stdout] | [INFO] [stdout] 406 | dependencies, [INFO] [stdout] | ^^^^^^^^^^^^ help: try ignoring the field: `dependencies: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/debug_metrics.rs:407:25 [INFO] [stdout] | [INFO] [stdout] 407 | labels, [INFO] [stdout] | ^^^^^^ help: try ignoring the field: `labels: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `debug_metrics` [INFO] [stdout] --> src/test.rs:122:26 [INFO] [stdout] | [INFO] [stdout] 122 | pre_setup: &|debug_metrics| {}, [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_debug_metrics` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/debug_metrics.rs:123:31 [INFO] [stdout] | [INFO] [stdout] 123 | fn with_drop_hook(&mut self, call_fn: CallFn) -> DropHook [INFO] [stdout] | ^^^^^^^^^ ---------------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 123 | fn with_drop_hook(&mut self, call_fn: CallFn) -> DropHook<'_, Self, CallFn> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.60s [INFO] running `Command { std: "docker" "inspect" "a471c6061889a08e9e1b038b0707552a38dc155c6eb5dff52a5ad4a711e47781", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a471c6061889a08e9e1b038b0707552a38dc155c6eb5dff52a5ad4a711e47781", kill_on_drop: false }` [INFO] [stdout] a471c6061889a08e9e1b038b0707552a38dc155c6eb5dff52a5ad4a711e47781