Sep 10 14:40:35.338 INFO checking metrics-0.2.3 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 14:40:35.338 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 14:40:35.338 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 14:40:35.562 INFO blam! f5b78e30cba2c23b743b23c52729a0fe788072e3eb9f0f9e229c76c57bb3386d
Sep 10 14:40:35.572 INFO running `"docker" "start" "-a" "f5b78e30cba2c23b743b23c52729a0fe788072e3eb9f0f9e229c76c57bb3386d"`
Sep 10 14:40:36.433 INFO kablam! usermod: no changes
Sep 10 14:40:36.610 INFO kablam!     Checking metrics v0.2.3 (file:///source)
Sep 10 14:40:36.610 INFO kablam!     Checking iron v0.5.1
Sep 10 14:40:41.018 INFO kablam! warning: unused import: `iron::prelude::*`
Sep 10 14:40:41.018 INFO kablam!   --> examples/web_server_with_debug_port.rs:14:5
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 14 | use iron::prelude::*;
Sep 10 14:40:41.019 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.019 INFO kablam! warning: unused import: `iron::status`
Sep 10 14:40:41.019 INFO kablam!   --> examples/web_server_with_debug_port.rs:15:5
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 15 | use iron::status;
Sep 10 14:40:41.019 INFO kablam!    |     ^^^^^^^^^^^^
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.019 INFO kablam! warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
Sep 10 14:40:41.019 INFO kablam!   --> examples/web_server_with_debug_port.rs:16:24
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
Sep 10 14:40:41.019 INFO kablam!    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.019 INFO kablam! warning: unused import: `std::collections::HashMap`
Sep 10 14:40:41.019 INFO kablam!   --> examples/web_server_with_debug_port.rs:17:5
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 17 | use std::collections::HashMap;
Sep 10 14:40:41.019 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.019 INFO kablam! warning: unused import: `histogram::Histogram`
Sep 10 14:40:41.019 INFO kablam!   --> examples/web_server_with_debug_port.rs:18:5
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 18 | use histogram::Histogram;
Sep 10 14:40:41.019 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.019 INFO kablam! warning: unused import: `metrics::reporter::Reporter`
Sep 10 14:40:41.019 INFO kablam!   --> examples/web_server_with_debug_port.rs:19:5
Sep 10 14:40:41.019 INFO kablam!    |
Sep 10 14:40:41.019 INFO kablam! 19 | use metrics::reporter::Reporter;
Sep 10 14:40:41.019 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 14:40:41.019 INFO kablam! 
Sep 10 14:40:41.290 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
Sep 10 14:40:41.294 INFO kablam! su: No module specific data is present
Sep 10 14:40:42.290 INFO running `"docker" "rm" "-f" "f5b78e30cba2c23b743b23c52729a0fe788072e3eb9f0f9e229c76c57bb3386d"`
Sep 10 14:40:42.423 INFO blam! f5b78e30cba2c23b743b23c52729a0fe788072e3eb9f0f9e229c76c57bb3386d