Dec 04 16:08:37.036 INFO checking k3d3/Roam against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 16:08:37.037 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 16:08:37.509 INFO [stdout] 0591a9168c82363da4a3e67afdf6cabf0b7a1fdf51e93891f179a5005e8f9591
Dec 04 16:08:37.513 INFO running `"docker" "start" "-a" "0591a9168c82363da4a3e67afdf6cabf0b7a1fdf51e93891f179a5005e8f9591"`
Dec 04 16:08:38.399 INFO [stderr] usermod: no changes
Dec 04 16:08:38.560 INFO [stderr]     Checking bitflags v0.8.0
Dec 04 16:08:38.560 INFO [stderr]     Checking futures v0.1.10
Dec 04 16:08:38.561 INFO [stderr]     Checking base64 v0.4.0
Dec 04 16:08:38.575 INFO [stderr]     Checking mio v0.6.4
Dec 04 16:08:38.575 INFO [stderr]     Checking backtrace-sys v0.1.10
Dec 04 16:08:38.575 INFO [stderr]     Checking rust-crypto v0.2.36
Dec 04 16:08:38.575 INFO [stderr]    Compiling serde_codegen_internals v0.14.1
Dec 04 16:08:39.147 INFO [stderr]     Checking clap v2.21.1
Dec 04 16:08:39.571 INFO [stderr]     Checking backtrace v0.3.0
Dec 04 16:08:41.151 INFO [stderr]     Checking error-chain v0.10.0
Dec 04 16:08:44.360 INFO [stderr]    Compiling serde_derive v0.9.11
Dec 04 16:08:46.462 INFO [stderr]     Checking tokio-core v0.1.4
Dec 04 16:08:46.462 INFO [stderr]     Checking tokio-service v0.1.0
Dec 04 16:08:49.579 INFO [stderr]     Checking tokio-proto v0.1.0
Dec 04 16:08:54.255 INFO [stderr]     Checking roam v0.1.0 (/source)
Dec 04 16:08:55.847 INFO [stderr] warning: method is never used: `to_json`
Dec 04 16:08:55.847 INFO [stderr]   --> src/network_config.rs:52:5
Dec 04 16:08:55.847 INFO [stderr]    |
Dec 04 16:08:55.847 INFO [stderr] 52 |     pub fn to_json(&self) -> Result<String> {
Dec 04 16:08:55.847 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:08:55.847 INFO [stderr]    |
Dec 04 16:08:55.847 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 16:08:55.847 INFO [stderr] 
Dec 04 16:08:55.847 INFO [stderr] warning: method is never used: `to_pretty_json`
Dec 04 16:08:55.847 INFO [stderr]   --> src/network_config.rs:56:5
Dec 04 16:08:55.847 INFO [stderr]    |
Dec 04 16:08:55.847 INFO [stderr] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
Dec 04 16:08:55.847 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:08:55.847 INFO [stderr] 
Dec 04 16:08:55.971 INFO [stderr] warning: method is never used: `to_pretty_json`
Dec 04 16:08:55.971 INFO [stderr]   --> src/network_config.rs:56:5
Dec 04 16:08:55.971 INFO [stderr]    |
Dec 04 16:08:55.971 INFO [stderr] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
Dec 04 16:08:55.971 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 16:08:55.971 INFO [stderr]    |
Dec 04 16:08:55.971 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 16:08:55.971 INFO [stderr] 
Dec 04 16:08:55.994 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.57s
Dec 04 16:08:56.008 INFO [stderr] su: No module specific data is present
Dec 04 16:08:56.947 INFO running `"docker" "inspect" "0591a9168c82363da4a3e67afdf6cabf0b7a1fdf51e93891f179a5005e8f9591"`
Dec 04 16:08:57.205 INFO running `"docker" "rm" "-f" "0591a9168c82363da4a3e67afdf6cabf0b7a1fdf51e93891f179a5005e8f9591"`
Dec 04 16:08:57.479 INFO [stdout] 0591a9168c82363da4a3e67afdf6cabf0b7a1fdf51e93891f179a5005e8f9591