Dec 18 14:02:05.804 INFO checking metrics-0.2.3 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:02:05.805 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:02:06.168 INFO [stdout] fdfdd6151bc992af175cef47bc158cd7375675dbdff7ba0a4fba6dee7c7aa4cf
Dec 18 14:02:06.176 INFO running `"docker" "start" "-a" "fdfdd6151bc992af175cef47bc158cd7375675dbdff7ba0a4fba6dee7c7aa4cf"`
Dec 18 14:02:07.768 INFO [stderr]     Checking histogram v0.6.9
Dec 18 14:02:07.772 INFO [stderr]     Checking iron v0.5.1
Dec 18 14:02:08.692 INFO [stderr]     Checking metrics v0.2.3 (/opt/crater/workdir)
Dec 18 14:02:09.986 INFO [stderr] warning: unused import: `iron::prelude::*`
Dec 18 14:02:09.986 INFO [stderr]   --> examples/web_server_with_debug_port.rs:14:5
Dec 18 14:02:09.986 INFO [stderr]    |
Dec 18 14:02:09.986 INFO [stderr] 14 | use iron::prelude::*;
Dec 18 14:02:09.986 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 14:02:09.986 INFO [stderr]    |
Dec 18 14:02:09.986 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 14:02:09.986 INFO [stderr] 
Dec 18 14:02:09.986 INFO [stderr] warning: unused import: `iron::status`
Dec 18 14:02:09.986 INFO [stderr]   --> examples/web_server_with_debug_port.rs:15:5
Dec 18 14:02:09.986 INFO [stderr]    |
Dec 18 14:02:09.986 INFO [stderr] 15 | use iron::status;
Dec 18 14:02:09.986 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 18 14:02:09.986 INFO [stderr] 
Dec 18 14:02:09.986 INFO [stderr] warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
Dec 18 14:02:09.986 INFO [stderr]   --> examples/web_server_with_debug_port.rs:16:24
Dec 18 14:02:09.986 INFO [stderr]    |
Dec 18 14:02:09.986 INFO [stderr] 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
Dec 18 14:02:09.986 INFO [stderr]    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
Dec 18 14:02:09.986 INFO [stderr] 
Dec 18 14:02:09.986 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 18 14:02:09.986 INFO [stderr]   --> examples/web_server_with_debug_port.rs:17:5
Dec 18 14:02:09.986 INFO [stderr]    |
Dec 18 14:02:09.986 INFO [stderr] 17 | use std::collections::HashMap;
Dec 18 14:02:09.986 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:02:09.996 INFO [stderr] 
Dec 18 14:02:09.996 INFO [stderr] warning: unused import: `histogram::Histogram`
Dec 18 14:02:09.996 INFO [stderr]   --> examples/web_server_with_debug_port.rs:18:5
Dec 18 14:02:09.996 INFO [stderr]    |
Dec 18 14:02:09.996 INFO [stderr] 18 | use histogram::Histogram;
Dec 18 14:02:09.996 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 14:02:09.996 INFO [stderr] 
Dec 18 14:02:09.996 INFO [stderr] warning: unused import: `metrics::reporter::Reporter`
Dec 18 14:02:09.996 INFO [stderr]   --> examples/web_server_with_debug_port.rs:19:5
Dec 18 14:02:09.996 INFO [stderr]    |
Dec 18 14:02:09.996 INFO [stderr] 19 | use metrics::reporter::Reporter;
Dec 18 14:02:09.996 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:02:09.996 INFO [stderr] 
Dec 18 14:02:10.189 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Dec 18 14:02:10.498 INFO running `"docker" "inspect" "fdfdd6151bc992af175cef47bc158cd7375675dbdff7ba0a4fba6dee7c7aa4cf"`
Dec 18 14:02:10.638 INFO running `"docker" "rm" "-f" "fdfdd6151bc992af175cef47bc158cd7375675dbdff7ba0a4fba6dee7c7aa4cf"`
Dec 18 14:02:10.987 INFO [stdout] fdfdd6151bc992af175cef47bc158cd7375675dbdff7ba0a4fba6dee7c7aa4cf