[INFO] fetching crate metrics_distributor 0.5.3...
[INFO] checking metrics_distributor-0.5.3 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate metrics_distributor 0.5.3 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate metrics_distributor 0.5.3 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics_distributor 0.5.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metrics_distributor 0.5.3
[INFO] tweaked toml for crates.io crate metrics_distributor 0.5.3 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate metrics_distributor 0.5.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/forwarders/mod.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn forward_metrics(&self, AggregatedMetrics);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: AggregatedMetrics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/forwarders/mod.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn forward_metrics(&self, AggregatedMetrics);
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: AggregatedMetrics`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Count("a".to_owned(), 1),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Count("a".to_owned(), 2),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:32:15
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Count("a".to_owned(), 3),
[INFO] [stdout]    |               ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |         Measure("b".to_owned(), 0.1),
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Measure("b".to_owned(), 0.2),
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Measure("b".to_owned(), 0.3),
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:36:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Sample("c".to_owned(), 0.4),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Sample("c".to_owned(), 0.5),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/lib.rs:38:16
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Sample("c".to_owned(), 0.6),
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ expected struct `Dimension`, found struct `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metrics_distributor` due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "a343b5cbc8d6ddcb74e5b04c3422ed6a50086b58607e08b9451dc12fa7e3d9c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a343b5cbc8d6ddcb74e5b04c3422ed6a50086b58607e08b9451dc12fa7e3d9c3", kill_on_drop: false }`
[INFO] [stdout] a343b5cbc8d6ddcb74e5b04c3422ed6a50086b58607e08b9451dc12fa7e3d9c3