[INFO] crate metrics 0.2.3 is already in cache
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/metrics/0.2.3
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/metrics/0.2.3
[INFO] validating manifest of metrics-0.2.3 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of metrics-0.2.3 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing metrics-0.2.3
[INFO] finished frobbing metrics-0.2.3
[INFO] frobbed toml for metrics-0.2.3 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/metrics/0.2.3/Cargo.toml
[INFO] started frobbing metrics-0.2.3
[INFO] finished frobbing metrics-0.2.3
[INFO] frobbed toml for metrics-0.2.3 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/metrics/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking metrics-0.2.3 against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-1/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/metrics/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ccf012296e3567a7b1ce769c629a705913095f55db60a43ffc89681167e5943d
[INFO] running `"docker" "start" "-a" "ccf012296e3567a7b1ce769c629a705913095f55db60a43ffc89681167e5943d"`
[INFO] [stderr]     Checking metrics v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Counter(Arc<Counter>),
[INFO] [stderr]    |                 ^^^^^^^ help: use `dyn`: `dyn Counter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:25:15
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Gauge(Arc<Gauge>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Gauge`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Meter(Arc<Meter>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Meter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Counter(Arc<Counter>),
[INFO] [stderr]    |                 ^^^^^^^ help: use `dyn`: `dyn Counter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:25:15
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Gauge(Arc<Gauge>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Gauge`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Meter(Arc<Meter>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Meter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron::prelude::*`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use iron::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron::status`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use iron::status;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:16:24
[INFO] [stderr]    |
[INFO] [stderr] 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
[INFO] [stderr]    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `histogram::Histogram`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use histogram::Histogram;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `metrics::reporter::Reporter`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use metrics::reporter::Reporter;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "ccf012296e3567a7b1ce769c629a705913095f55db60a43ffc89681167e5943d"`
[INFO] running `"docker" "rm" "-f" "ccf012296e3567a7b1ce769c629a705913095f55db60a43ffc89681167e5943d"`
[INFO] [stdout] ccf012296e3567a7b1ce769c629a705913095f55db60a43ffc89681167e5943d