Dec 11 16:44:11.573 INFO checking jaemk/rok against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:44:11.574 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 16:44:12.090 INFO [stdout] 4187b38acd47a28df5c567619c320a79c1f0676858ab62610bb87f33afc7a5fe
Dec 11 16:44:12.100 INFO running `"docker" "start" "-a" "4187b38acd47a28df5c567619c320a79c1f0676858ab62610bb87f33afc7a5fe"`
Dec 11 16:44:13.964 INFO [stderr] usermod: no changes
Dec 11 16:44:14.096 INFO [stderr]     Checking either v1.3.0
Dec 11 16:44:14.096 INFO [stderr]     Checking nix v0.5.1
Dec 11 16:44:14.096 INFO [stderr]     Checking error-chain v0.11.0
Dec 11 16:44:14.864 INFO [stderr]     Checking itertools v0.7.2
Dec 11 16:44:19.044 INFO [stderr]     Checking rustyline v1.0.0
Dec 11 16:44:19.997 INFO [stderr]     Checking rok v0.1.0 (/source)
Dec 11 16:44:21.684 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 11 16:44:21.684 INFO [stderr]   --> src/lib.rs:40:20
Dec 11 16:44:21.684 INFO [stderr]    |
Dec 11 16:44:21.684 INFO [stderr] 40 |         let path = env::home_dir().unwrap_or_else(|| path::PathBuf::from("."));
Dec 11 16:44:21.684 INFO [stderr]    |                    ^^^^^^^^^^^^^
Dec 11 16:44:21.684 INFO [stderr]    |
Dec 11 16:44:21.684 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 11 16:44:21.685 INFO [stderr] 
Dec 11 16:44:21.860 INFO [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
Dec 11 16:44:21.861 INFO [stderr]   --> src/lib.rs:40:20
Dec 11 16:44:21.861 INFO [stderr]    |
Dec 11 16:44:21.861 INFO [stderr] 40 |         let path = env::home_dir().unwrap_or_else(|| path::PathBuf::from("."));
Dec 11 16:44:21.862 INFO [stderr]    |                    ^^^^^^^^^^^^^
Dec 11 16:44:21.862 INFO [stderr]    |
Dec 11 16:44:21.862 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 11 16:44:21.863 INFO [stderr] 
Dec 11 16:44:22.196 INFO [stderr] warning: unused variable: `tokens`
Dec 11 16:44:22.196 INFO [stderr]   --> src/lib.rs:22:13
Dec 11 16:44:22.196 INFO [stderr]    |
Dec 11 16:44:22.196 INFO [stderr] 22 | pub fn eval(tokens: &[Token]) -> Result<()> {
Dec 11 16:44:22.196 INFO [stderr]    |             ^^^^^^ help: consider using `_tokens` instead
Dec 11 16:44:22.196 INFO [stderr]    |
Dec 11 16:44:22.196 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:44:22.196 INFO [stderr] 
Dec 11 16:44:22.229 INFO [stderr] warning: unused variable: `tokens`
Dec 11 16:44:22.229 INFO [stderr]   --> src/lib.rs:22:13
Dec 11 16:44:22.229 INFO [stderr]    |
Dec 11 16:44:22.229 INFO [stderr] 22 | pub fn eval(tokens: &[Token]) -> Result<()> {
Dec 11 16:44:22.229 INFO [stderr]    |             ^^^^^^ help: consider using `_tokens` instead
Dec 11 16:44:22.229 INFO [stderr]    |
Dec 11 16:44:22.229 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:44:22.229 INFO [stderr] 
Dec 11 16:44:24.481 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.49s
Dec 11 16:44:24.488 INFO [stderr] su: No module specific data is present
Dec 11 16:44:25.122 INFO running `"docker" "inspect" "4187b38acd47a28df5c567619c320a79c1f0676858ab62610bb87f33afc7a5fe"`
Dec 11 16:44:25.410 INFO running `"docker" "rm" "-f" "4187b38acd47a28df5c567619c320a79c1f0676858ab62610bb87f33afc7a5fe"`
Dec 11 16:44:25.631 INFO [stdout] 4187b38acd47a28df5c567619c320a79c1f0676858ab62610bb87f33afc7a5fe