Dec 18 00:47:18.251 INFO checking elpiel/rust-grep against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 00:47:18.251 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/elpiel/rust-grep:/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 18 00:47:18.826 INFO [stdout] fe9cc6b44df627926ab42c0b15fb09a06f78de62176a197ba2be1183561170dc
Dec 18 00:47:18.828 INFO running `"docker" "start" "-a" "fe9cc6b44df627926ab42c0b15fb09a06f78de62176a197ba2be1183561170dc"`
Dec 18 00:47:20.515 INFO [stderr]     Checking memchr v2.0.1
Dec 18 00:47:20.935 INFO [stderr]     Checking aho-corasick v0.6.4
Dec 18 00:47:21.652 INFO [stderr]     Checking regex v1.0.0
Dec 18 00:47:24.081 INFO [stderr]     Checking grep v0.1.0 (/opt/crater/workdir)
Dec 18 00:47:24.455 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 00:47:24.455 INFO [stderr]  --> src/main.rs:1:1
Dec 18 00:47:24.455 INFO [stderr]   |
Dec 18 00:47:24.455 INFO [stderr] 1 | #[macro_use] extern crate lazy_static;
Dec 18 00:47:24.455 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 00:47:24.455 INFO [stderr]   |
Dec 18 00:47:24.455 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:47:24.455 INFO [stderr] 
Dec 18 00:47:24.537 INFO [stderr] warning: unused variable: `colorful_output`
Dec 18 00:47:24.537 INFO [stderr]   --> src/main.rs:11:9
Dec 18 00:47:24.538 INFO [stderr]    |
Dec 18 00:47:24.538 INFO [stderr] 11 |     let colorful_output = true;
Dec 18 00:47:24.538 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_colorful_output` instead
Dec 18 00:47:24.538 INFO [stderr]    |
Dec 18 00:47:24.539 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 00:47:24.544 INFO [stderr] 
Dec 18 00:47:24.760 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 00:47:24.760 INFO [stderr]  --> src/main.rs:1:1
Dec 18 00:47:24.760 INFO [stderr]   |
Dec 18 00:47:24.760 INFO [stderr] 1 | #[macro_use] extern crate lazy_static;
Dec 18 00:47:24.760 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 00:47:24.760 INFO [stderr]   |
Dec 18 00:47:24.760 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 00:47:24.760 INFO [stderr] 
Dec 18 00:47:24.824 INFO [stderr] warning: unused variable: `colorful_output`
Dec 18 00:47:24.824 INFO [stderr]   --> src/main.rs:11:9
Dec 18 00:47:24.824 INFO [stderr]    |
Dec 18 00:47:24.824 INFO [stderr] 11 |     let colorful_output = true;
Dec 18 00:47:24.824 INFO [stderr]    |         ^^^^^^^^^^^^^^^ help: consider using `_colorful_output` instead
Dec 18 00:47:24.824 INFO [stderr]    |
Dec 18 00:47:24.824 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 00:47:24.824 INFO [stderr] 
Dec 18 00:47:24.852 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.40s
Dec 18 00:47:25.935 INFO running `"docker" "inspect" "fe9cc6b44df627926ab42c0b15fb09a06f78de62176a197ba2be1183561170dc"`
Dec 18 00:47:26.292 INFO running `"docker" "rm" "-f" "fe9cc6b44df627926ab42c0b15fb09a06f78de62176a197ba2be1183561170dc"`
Dec 18 00:47:26.656 INFO [stdout] fe9cc6b44df627926ab42c0b15fb09a06f78de62176a197ba2be1183561170dc