Dec 17 21:48:09.205 INFO checking k3d3/Roam against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:48:09.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/k3d3/Roam:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 21:48:09.442 INFO [stdout] ec3ea815141e0f32b6bf38e4c88b3eed7cc23a651a2928c7615441be1484b0ff
Dec 17 21:48:09.450 INFO running `"docker" "start" "-a" "ec3ea815141e0f32b6bf38e4c88b3eed7cc23a651a2928c7615441be1484b0ff"`
Dec 17 21:48:10.492 INFO [stderr]     Checking bitflags v0.8.0
Dec 17 21:48:10.492 INFO [stderr]    Compiling backtrace-sys v0.1.10
Dec 17 21:48:10.496 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 17 21:48:10.496 INFO [stderr]     Checking futures v0.1.10
Dec 17 21:48:10.500 INFO [stderr]     Checking base64 v0.4.0
Dec 17 21:48:10.500 INFO [stderr]     Checking mio v0.6.4
Dec 17 21:48:10.980 INFO [stderr]     Checking clap v2.21.1
Dec 17 21:48:14.836 INFO [stderr]     Checking tokio-service v0.1.0
Dec 17 21:48:14.836 INFO [stderr]     Checking tokio-core v0.1.4
Dec 17 21:48:17.020 INFO [stderr]     Checking tokio-proto v0.1.0
Dec 17 21:48:30.641 INFO [stderr]     Checking backtrace v0.3.0
Dec 17 21:48:31.090 INFO [stderr]     Checking error-chain v0.10.0
Dec 17 21:48:31.554 INFO [stderr]     Checking roam v0.1.0 (/opt/crater/workdir)
Dec 17 21:48:32.532 INFO [stderr] warning: method is never used: `to_json`
Dec 17 21:48:32.533 INFO [stderr]   --> src/network_config.rs:52:5
Dec 17 21:48:32.533 INFO [stderr]    |
Dec 17 21:48:32.533 INFO [stderr] 52 |     pub fn to_json(&self) -> Result<String> {
Dec 17 21:48:32.533 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:48:32.533 INFO [stderr]    |
Dec 17 21:48:32.533 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 21:48:32.533 INFO [stderr] 
Dec 17 21:48:32.534 INFO [stderr] warning: method is never used: `to_pretty_json`
Dec 17 21:48:32.534 INFO [stderr]   --> src/network_config.rs:56:5
Dec 17 21:48:32.534 INFO [stderr]    |
Dec 17 21:48:32.534 INFO [stderr] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
Dec 17 21:48:32.534 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:48:32.534 INFO [stderr] 
Dec 17 21:48:32.656 INFO [stderr] warning: method is never used: `to_pretty_json`
Dec 17 21:48:32.656 INFO [stderr]   --> src/network_config.rs:56:5
Dec 17 21:48:32.656 INFO [stderr]    |
Dec 17 21:48:32.656 INFO [stderr] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
Dec 17 21:48:32.656 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 21:48:32.656 INFO [stderr]    |
Dec 17 21:48:32.656 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 21:48:32.656 INFO [stderr] 
Dec 17 21:48:32.694 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.36s
Dec 17 21:48:33.886 INFO running `"docker" "inspect" "ec3ea815141e0f32b6bf38e4c88b3eed7cc23a651a2928c7615441be1484b0ff"`
Dec 17 21:48:34.216 INFO running `"docker" "rm" "-f" "ec3ea815141e0f32b6bf38e4c88b3eed7cc23a651a2928c7615441be1484b0ff"`
Dec 17 21:48:34.540 INFO [stdout] ec3ea815141e0f32b6bf38e4c88b3eed7cc23a651a2928c7615441be1484b0ff