Oct 13 12:06:44.547 INFO checking metrics-0.2.3 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 12:06:44.547 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 12:06:44.715 INFO blam! 0ce19d403f0302476300e9f305a73de8ef79dceafccf1144a26f1747c050f008
Oct 13 12:06:44.717 INFO running `"docker" "start" "-a" "0ce19d403f0302476300e9f305a73de8ef79dceafccf1144a26f1747c050f008"`
Oct 13 12:06:45.223 INFO kablam! usermod: no changes
Oct 13 12:06:45.360 INFO kablam!     Checking metrics v0.2.3 (/source)
Oct 13 12:06:51.436 INFO kablam! warning: unused import: `iron::prelude::*`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:14:5
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 14 | use iron::prelude::*;
Oct 13 12:06:51.437 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 12:06:51.437 INFO kablam! 
Oct 13 12:06:51.437 INFO kablam! warning: unused import: `iron::status`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:15:5
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 15 | use iron::status;
Oct 13 12:06:51.437 INFO kablam!    |     ^^^^^^^^^^^^
Oct 13 12:06:51.437 INFO kablam! 
Oct 13 12:06:51.437 INFO kablam! warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:16:24
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
Oct 13 12:06:51.437 INFO kablam!    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
Oct 13 12:06:51.437 INFO kablam! 
Oct 13 12:06:51.437 INFO kablam! warning: unused import: `std::collections::HashMap`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:17:5
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 17 | use std::collections::HashMap;
Oct 13 12:06:51.437 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.437 INFO kablam! 
Oct 13 12:06:51.437 INFO kablam! warning: unused import: `histogram::Histogram`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:18:5
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 18 | use histogram::Histogram;
Oct 13 12:06:51.437 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.437 INFO kablam! 
Oct 13 12:06:51.437 INFO kablam! warning: unused import: `metrics::reporter::Reporter`
Oct 13 12:06:51.437 INFO kablam!   --> examples/web_server_with_debug_port.rs:19:5
Oct 13 12:06:51.437 INFO kablam!    |
Oct 13 12:06:51.437 INFO kablam! 19 | use metrics::reporter::Reporter;
Oct 13 12:06:51.437 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.438 INFO kablam! 
Oct 13 12:06:51.491 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
Oct 13 12:06:51.499 INFO kablam! su: No module specific data is present
Oct 13 12:06:52.706 INFO running `"docker" "rm" "-f" "0ce19d403f0302476300e9f305a73de8ef79dceafccf1144a26f1747c050f008"`
Oct 13 12:06:53.076 INFO blam! 0ce19d403f0302476300e9f305a73de8ef79dceafccf1144a26f1747c050f008