[INFO] crate metrics 0.2.3 is already in cache
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/metrics/0.2.3
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/metrics/0.2.3
[INFO] validating manifest of metrics-0.2.3 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of metrics-0.2.3 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/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-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/metrics/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking metrics-0.2.3 against master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-6/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5fc705f550d93946dd55c6dfed6b0970a6175926fef8b42cd228fe2ad3cb9386
[INFO] running `"docker" "start" "-a" "5fc705f550d93946dd55c6dfed6b0970a6175926fef8b42cd228fe2ad3cb9386"`
[INFO] [stderr]     Checking metrics v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Checking iron v0.5.1
[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 2.80s
[INFO] running `"docker" "inspect" "5fc705f550d93946dd55c6dfed6b0970a6175926fef8b42cd228fe2ad3cb9386"`
[INFO] running `"docker" "rm" "-f" "5fc705f550d93946dd55c6dfed6b0970a6175926fef8b42cd228fe2ad3cb9386"`
[INFO] [stdout] 5fc705f550d93946dd55c6dfed6b0970a6175926fef8b42cd228fe2ad3cb9386