Dec 19 13:39:06.926 INFO checking lincheney/nvim-cat against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:39:06.926 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/lincheney/nvim-cat:/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 13:39:07.345 INFO [stdout] 2647fbe9f395d3838faaaadee36339ffde1346f56b6ef094cd69978776cb4eca
Dec 19 13:39:07.347 INFO running `"docker" "start" "-a" "2647fbe9f395d3838faaaadee36339ffde1346f56b6ef094cd69978776cb4eca"`
Dec 19 13:39:09.373 INFO [stderr]     Checking quick-error v1.1.0
Dec 19 13:39:09.373 INFO [stderr]     Checking term_size v0.2.3
Dec 19 13:39:09.388 INFO [stderr]     Checking rmp v0.7.5
Dec 19 13:39:09.400 INFO [stderr]     Checking nix v0.8.0
Dec 19 13:39:09.848 INFO [stderr]     Checking clap v2.19.3
Dec 19 13:39:12.052 INFO [stderr]     Checking rmp-serde v0.10.0
Dec 19 13:39:16.912 INFO [stderr]     Checking nvim-cat v0.1.0 (/opt/crater/workdir)
Dec 19 13:39:17.448 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 19 13:39:17.449 INFO [stderr]  --> src/synattr.rs:2:5
Dec 19 13:39:17.449 INFO [stderr]   |
Dec 19 13:39:17.449 INFO [stderr] 2 | use std::ascii::AsciiExt;
Dec 19 13:39:17.449 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:39:17.449 INFO [stderr]   |
Dec 19 13:39:17.449 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 19 13:39:17.449 INFO [stderr] 
Dec 19 13:39:17.504 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 19 13:39:17.504 INFO [stderr]  --> src/synattr.rs:2:5
Dec 19 13:39:17.504 INFO [stderr]   |
Dec 19 13:39:17.504 INFO [stderr] 2 | use std::ascii::AsciiExt;
Dec 19 13:39:17.504 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:39:17.504 INFO [stderr]   |
Dec 19 13:39:17.504 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 19 13:39:17.504 INFO [stderr] 
Dec 19 13:39:17.736 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 19 13:39:17.736 INFO [stderr]  --> src/synattr.rs:2:5
Dec 19 13:39:17.736 INFO [stderr]   |
Dec 19 13:39:17.736 INFO [stderr] 2 | use std::ascii::AsciiExt;
Dec 19 13:39:17.736 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:39:17.736 INFO [stderr]   |
Dec 19 13:39:17.736 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:39:17.736 INFO [stderr] 
Dec 19 13:39:17.828 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 19 13:39:17.828 INFO [stderr]  --> src/synattr.rs:2:5
Dec 19 13:39:17.828 INFO [stderr]   |
Dec 19 13:39:17.828 INFO [stderr] 2 | use std::ascii::AsciiExt;
Dec 19 13:39:17.828 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 13:39:17.831 INFO [stderr]   |
Dec 19 13:39:17.831 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:39:17.831 INFO [stderr] 
Dec 19 13:39:18.074 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.84s
Dec 19 13:39:19.104 INFO running `"docker" "inspect" "2647fbe9f395d3838faaaadee36339ffde1346f56b6ef094cd69978776cb4eca"`
Dec 19 13:39:19.382 INFO running `"docker" "rm" "-f" "2647fbe9f395d3838faaaadee36339ffde1346f56b6ef094cd69978776cb4eca"`
Dec 19 13:39:19.844 INFO [stdout] 2647fbe9f395d3838faaaadee36339ffde1346f56b6ef094cd69978776cb4eca