Dec 18 18:19:50.104 INFO checking axon-0.1.6 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:19:50.104 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/axon/0.1.6:/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 18:19:50.469 INFO [stdout] b99a9c319297aa9c2301bf160e99ebc47ad95e2d1c11185f39d4f9b71d704e10
Dec 18 18:19:50.476 INFO running `"docker" "start" "-a" "b99a9c319297aa9c2301bf160e99ebc47ad95e2d1c11185f39d4f9b71d704e10"`
Dec 18 18:19:51.327 INFO [stderr]     Checking tokio-reactor v0.1.7
Dec 18 18:19:52.254 INFO [stderr]     Checking tokio-udp v0.1.3
Dec 18 18:19:52.254 INFO [stderr]     Checking tokio-uds v0.2.4
Dec 18 18:19:52.254 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 18 18:19:53.664 INFO [stderr]     Checking tokio v0.1.13
Dec 18 18:19:54.923 INFO [stderr]     Checking axon v0.1.6 (/opt/crater/workdir)
Dec 18 18:19:57.316 INFO [stderr] warning: unused import: `Read`
Dec 18 18:19:57.316 INFO [stderr]  --> examples/hello.rs:3:15
Dec 18 18:19:57.316 INFO [stderr]   |
Dec 18 18:19:57.316 INFO [stderr] 3 | use std::io::{Read,Write};
Dec 18 18:19:57.316 INFO [stderr]   |               ^^^^
Dec 18 18:19:57.316 INFO [stderr]   |
Dec 18 18:19:57.316 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 18:19:57.316 INFO [stderr] 
Dec 18 18:19:57.360 INFO [stderr] warning: unused variable: `b`
Dec 18 18:19:57.360 INFO [stderr]  --> examples/hello.rs:7:13
Dec 18 18:19:57.360 INFO [stderr]   |
Dec 18 18:19:57.360 INFO [stderr] 7 |     let mut b = vec![0;10];
Dec 18 18:19:57.360 INFO [stderr]   |             ^ help: consider using `_b` instead
Dec 18 18:19:57.360 INFO [stderr]   |
Dec 18 18:19:57.360 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 18:19:57.360 INFO [stderr] 
Dec 18 18:19:57.368 INFO [stderr] warning: variable does not need to be mutable
Dec 18 18:19:57.368 INFO [stderr]  --> examples/hello.rs:7:9
Dec 18 18:19:57.368 INFO [stderr]   |
Dec 18 18:19:57.368 INFO [stderr] 7 |     let mut b = vec![0;10];
Dec 18 18:19:57.368 INFO [stderr]   |         ----^
Dec 18 18:19:57.368 INFO [stderr]   |         |
Dec 18 18:19:57.368 INFO [stderr]   |         help: remove this `mut`
Dec 18 18:19:57.368 INFO [stderr]   |
Dec 18 18:19:57.368 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 18:19:57.368 INFO [stderr] 
Dec 18 18:19:57.435 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.26s
Dec 18 18:19:57.991 INFO running `"docker" "inspect" "b99a9c319297aa9c2301bf160e99ebc47ad95e2d1c11185f39d4f9b71d704e10"`
Dec 18 18:19:58.302 INFO running `"docker" "rm" "-f" "b99a9c319297aa9c2301bf160e99ebc47ad95e2d1c11185f39d4f9b71d704e10"`
Dec 18 18:19:58.489 INFO [stdout] b99a9c319297aa9c2301bf160e99ebc47ad95e2d1c11185f39d4f9b71d704e10