Dec 19 19:34:17.997 INFO checking brianp/muxednew against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:34:17.997 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/brianp/muxednew:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:34:18.509 INFO [stdout] 49c13bf5542e6de90d4b078d19cb8bf4f2cf750c9a3b505438fcab5392a7ad73
Dec 19 19:34:18.511 INFO running `"docker" "start" "-a" "49c13bf5542e6de90d4b078d19cb8bf4f2cf750c9a3b505438fcab5392a7ad73"`
Dec 19 19:34:21.454 INFO [stderr]     Checking libc v0.2.11
Dec 19 19:34:21.454 INFO [stderr]     Checking clap v2.5.2
Dec 19 19:34:22.664 INFO [stderr]     Checking rand v0.3.14
Dec 19 19:34:26.475 INFO [stderr]     Checking muxednew v0.3.0 (/opt/crater/workdir)
Dec 19 19:34:26.988 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 19:34:26.989 INFO [stderr]  --> tests/new.rs:8:9
Dec 19 19:34:26.989 INFO [stderr]   |
Dec 19 19:34:26.989 INFO [stderr] 8 |     use std::fs::File;
Dec 19 19:34:26.990 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 19 19:34:26.990 INFO [stderr]   |
Dec 19 19:34:26.990 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 19:34:26.991 INFO [stderr] 
Dec 19 19:34:26.991 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 19 19:34:26.991 INFO [stderr]   --> tests/new.rs:11:9
Dec 19 19:34:26.992 INFO [stderr]    |
Dec 19 19:34:26.992 INFO [stderr] 11 |     use std::io::prelude::*;
Dec 19 19:34:26.992 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^
Dec 19 19:34:26.993 INFO [stderr] 
Dec 19 19:34:27.040 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 19 19:34:27.041 INFO [stderr]   --> src/main.rs:14:23
Dec 19 19:34:27.041 INFO [stderr]    |
Dec 19 19:34:27.041 INFO [stderr] 14 | #[cfg(not(test))] use std::env::home_dir;
Dec 19 19:34:27.042 INFO [stderr]    |                       ^^^^^^^^^^^^^^^^^^
Dec 19 19:34:27.042 INFO [stderr]    |
Dec 19 19:34:27.042 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 19:34:27.042 INFO [stderr] 
Dec 19 19:34:27.043 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 19 19:34:27.043 INFO [stderr]    --> src/main.rs:102:11
Dec 19 19:34:27.043 INFO [stderr]     |
Dec 19 19:34:27.043 INFO [stderr] 102 |     match home_dir() {
Dec 19 19:34:27.044 INFO [stderr]     |           ^^^^^^^^
Dec 19 19:34:27.044 INFO [stderr] 
Dec 19 19:34:27.437 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
Dec 19 19:34:29.073 INFO running `"docker" "inspect" "49c13bf5542e6de90d4b078d19cb8bf4f2cf750c9a3b505438fcab5392a7ad73"`
Dec 19 19:34:29.426 INFO running `"docker" "rm" "-f" "49c13bf5542e6de90d4b078d19cb8bf4f2cf750c9a3b505438fcab5392a7ad73"`
Dec 19 19:34:29.796 INFO [stdout] 49c13bf5542e6de90d4b078d19cb8bf4f2cf750c9a3b505438fcab5392a7ad73