Oct 13 12:06:44.371 INFO checking metrics-0.2.3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 12:06:44.371 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12:06:44.652 INFO blam! 82ea9dd52addb2065a127256c93d97457217bd2aec82dd7de9f21d22c8391946
Oct 13 12:06:44.658 INFO running `"docker" "start" "-a" "82ea9dd52addb2065a127256c93d97457217bd2aec82dd7de9f21d22c8391946"`
Oct 13 12:06:45.231 INFO kablam! usermod: no changes
Oct 13 12:06:45.356 INFO kablam!     Checking histogram v0.6.9
Oct 13 12:06:46.023 INFO kablam!     Checking metrics v0.2.3 (/source)
Oct 13 12:06:51.980 INFO kablam! warning: unused import: `iron::prelude::*`
Oct 13 12:06:51.980 INFO kablam!   --> examples/web_server_with_debug_port.rs:14:5
Oct 13 12:06:51.980 INFO kablam!    |
Oct 13 12:06:51.980 INFO kablam! 14 | use iron::prelude::*;
Oct 13 12:06:51.980 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 13 12:06:51.980 INFO kablam!    |
Oct 13 12:06:51.980 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 12:06:51.980 INFO kablam! 
Oct 13 12:06:51.980 INFO kablam! warning: unused import: `iron::status`
Oct 13 12:06:51.980 INFO kablam!   --> examples/web_server_with_debug_port.rs:15:5
Oct 13 12:06:51.980 INFO kablam!    |
Oct 13 12:06:51.980 INFO kablam! 15 | use iron::status;
Oct 13 12:06:51.980 INFO kablam!    |     ^^^^^^^^^^^^
Oct 13 12:06:51.980 INFO kablam! 
Oct 13 12:06:51.981 INFO kablam! warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
Oct 13 12:06:51.981 INFO kablam!   --> examples/web_server_with_debug_port.rs:16:24
Oct 13 12:06:51.981 INFO kablam!    |
Oct 13 12:06:51.981 INFO kablam! 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
Oct 13 12:06:51.981 INFO kablam!    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
Oct 13 12:06:51.981 INFO kablam! 
Oct 13 12:06:51.981 INFO kablam! warning: unused import: `std::collections::HashMap`
Oct 13 12:06:51.981 INFO kablam!   --> examples/web_server_with_debug_port.rs:17:5
Oct 13 12:06:51.981 INFO kablam!    |
Oct 13 12:06:51.981 INFO kablam! 17 | use std::collections::HashMap;
Oct 13 12:06:51.981 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.981 INFO kablam! 
Oct 13 12:06:51.981 INFO kablam! warning: unused import: `histogram::Histogram`
Oct 13 12:06:51.981 INFO kablam!   --> examples/web_server_with_debug_port.rs:18:5
Oct 13 12:06:51.981 INFO kablam!    |
Oct 13 12:06:51.981 INFO kablam! 18 | use histogram::Histogram;
Oct 13 12:06:51.981 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.981 INFO kablam! 
Oct 13 12:06:51.981 INFO kablam! warning: unused import: `metrics::reporter::Reporter`
Oct 13 12:06:51.981 INFO kablam!   --> examples/web_server_with_debug_port.rs:19:5
Oct 13 12:06:51.981 INFO kablam!    |
Oct 13 12:06:51.981 INFO kablam! 19 | use metrics::reporter::Reporter;
Oct 13 12:06:51.981 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 12:06:51.981 INFO kablam! 
Oct 13 12:06:52.852 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.59s
Oct 13 12:06:52.860 INFO kablam! su: No module specific data is present
Oct 13 12:06:53.724 INFO running `"docker" "rm" "-f" "82ea9dd52addb2065a127256c93d97457217bd2aec82dd7de9f21d22c8391946"`
Oct 13 12:06:54.039 INFO blam! 82ea9dd52addb2065a127256c93d97457217bd2aec82dd7de9f21d22c8391946